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For abstract, see N74-32371.
Topics: NASA Technical Reports Server (NTRS), THERMAL RADIATION, USER MANUALS (COMPUTER PROGRAMS), COMPUTER...
NASA Network Resource and Training Site
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The Globus Project is a community effort, led by Argonne National Laboratory and the University of Southern California's Information Sciences Institute. Globus is developing the basic software infrastructure for computations that integrate geographically distributed computational and information resources.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, GRID COMPUTING (COMPUTER NETWORKS), USER...
PCSMS (Parallel Complex Sparse Matrix Solver) is a computer code written to make use of the existing real sparse direct solvers to solve complex, sparse matrix linear equations. PCSMS converts complex matrices into real matrices and use real, sparse direct matrix solvers to factor and solve the real matrices. The solution vector is reconverted to complex numbers. Though, this utility is written for Silicon Graphics (SGI) real sparse matrix solution routines, it is general in nature and can be...
Topics: NASA Technical Reports Server (NTRS), USER MANUALS (COMPUTER PROGRAMS), COMPUTER PROGRAMS, MATRICES...
A computer program called NASCAN (NASTRAN scan) is described. NASCAN enables users to scan lengthy NASTRAN output files for maximum and minimum values in easy user oriented categories. Areas of high stress or deflections in any of the NASTRAN rigid formats are quickly detected and listed out for project documentations. The NASTRAN model is then revised if necessary by updating an input file tape which is processed through the NASTRAN program.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, STRUCTURAL ANALYSIS, USER MANUALS...
Framework for analysis and optimization problems (FRANOPP) is a software aid for the study and solution of design (optimization) problems which provides the driving program and plotting capability for a user generated programming system. In addition to FRANOPP, the programming system also contains the optimization code CONMIN, and two user supplied codes, one for analysis and one for output. With FRANOPP the user is provided with five options for studying a design problem. Three of the options...
Topics: NASA Technical Reports Server (NTRS), DESIGN ANALYSIS, OPTIMIZATION, PROBLEM SOLVING, USER MANUALS...
National Oceanic and Atmospheric Administration (NOAA) satellite data, which is in analog tape form, is converted into output data products. These products are used by investigators in determining optimum areas for airdrops of steril screwworm flies over Mexico. The output product of SEDS takes the form of imagery data film slides showing Mexico and the lower southwest portion of the United States. The area analog preprocessing phase of the SEDS task is covered.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DATA SYSTEMS, ELIMINATION, WORMS,...
The Rolling Element Bearing Analysis System (REBANS) extends the capability available with traditional quasi-static bearing analysis programs by including the effects of bearing race and support flexibility. This tool was developed under contract for NASA-MSFC. The initial version delivered at the close of the contract contained several errors and exhibited numerous convergence difficulties. The program has been modified in-house at MSFC to correct the errors and greatly improve the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, BEARINGS, FLEXIBILITY, STIFFNESS,...
Personal data input, decompression data, nitrogen washout, nitrogen data, and update computer programs are described. Input data and formats; program output, reports, and data; program flowcharts; program listings; sample runs with input and output pages; hardware operation; and engineering data are provided.
Topics: NASA Technical Reports Server (NTRS), AEROEMBOLISM, BREATHING APPARATUS, NITROGEN METABOLISM,...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, HEAT TRANSFER, FORTRAN, USER MANUALS...
The programming manual for the two-dimensional Boeing Plastic Analysis Capability for Engines (BOPACE) program written in FORTRAN IV is presented. The BOPACE flow logic is summarized along with subroutines and input/output files. Emphasis is placed on linear equation solver routines written as an independent package.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, STRUCTURAL ANALYSIS, USER MANUALS...
Topics: NASA Technical Reports Server (NTRS), THERMAL RADIATION, USER MANUALS (COMPUTER PROGRAMS), COMPUTER...
The BASIC algorithmic language is described, and a guide is presented for the programmer using the language interpreter. The high-level algorithm BASIC is a problem-oriented programming language intended for solution of computational and engineering problems.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, PROGRAMMING LANGUAGES, ALGORITHMS, PROBLEM...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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The integrated development support environment (IDSE) is a suite of integrated software tools that provide intelligent support for information modelling. These tools assist in function, information, and process modeling. Additional tools exist to assist in gathering and analyzing information to be modeled. This is a user's guide to application of the IDSE. Sections covering the requirements and design of each of the tools are presented. There are currently three integrated computer aided...
Topics: NASA Technical Reports Server (NTRS), COMPUTER AIDED MANUFACTURING, COMPUTER PROGRAMS, USER MANUALS...
Programs in basic FORTRAN 4 are described, which fall into three catagories: (1) interactive programs to be executed under time sharing (BTM); (2) non interactive programs which are executed in batch processing mode (BPM); and (3) large non interactive programs which require more memory than is available in the normal BPM/BTM operating system and must be run overnight on a special system called XRAY which releases about 45,000 words of memory to the user. Programs in catagories (1) and (2) are...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, CRYSTALLOGRAPHY, FORTRAN, INPUT/OUTPUT...
User instructions for the Tektronix Graphics Package of the Automated Paneling Technique (APT) and the Wing and Body Aerodynamic Technique (WABAT) Programs are provided. Responses to plot package messages which the user must make to activate plot package operations and options are described. Modifications to the APT and WABAT input run streams, to affect the graphic interface, are also covered.
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC CHARACTERISTICS, AIRCRAFT STRUCTURES, COMPUTER...
NASA Network Resource and Training Site
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Finite Element method (FEM) Array Control Software (FACS) is a user-friendly, interactive software package designed to provide a user interface to the FEM. The use of the FACS commands are described.
Topics: NASA Technical Reports Server (NTRS), ARRAYS, INTERACTIVE CONTROL, INTERFACES, MICROPROCESSORS,...
NASA Network Resource and Training Site
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A software tool has been developed to assist the parallelization of scientific codes. This tool, CAPO, extends an existing parallelization toolkit, CAPTools developed at the University of Greenwich, to generate OpenMP parallel codes for shared memory architectures. This is an interactive toolkit to transform a serial Fortran application code to an equivalent parallel version of the software - in a small fraction of the time normally required for a manual parallelization. We first discuss the...
Topics: NASA Technical Reports Server (NTRS), PARALLEL PROCESSING (COMPUTERS), SOFTWARE DEVELOPMENT TOOLS,...
Use of the Raw to Processed SINDA(System Improved Numerical Differencing Analyzer) Program, RTOPHS, which provides a means of making the temperature prediction data on binary HSTFLO and HISTRY units generated by SINDA available to engineers in an easy to use format, is discussed. The program accomplishes this by reading the HISTRY unit and according to user input instructions, the desired times and temperature prediction data are extracted and written to a word addressable drum file.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, INFORMATION RETRIEVAL, USER MANUALS...
Data sets selected for mini-batches and the software modifications required for processing these sets are described. Initial analysis was performed on minibatch field model recovery. Studies are being performed to examine the convergence of the solutions and the maximum expansion order the data will support in the constant and secular terms.
Topics: NASA Technical Reports Server (NTRS), BATCH PROCESSING, COMPUTER PROGRAMS, GEOMAGNETISM, MAGNETIC...
A general purpose FORTRAN 77 computer program (THPLOT) for plotting time histories using Calcomp pen plotters is described. The program is designed to read a time history data file and to generate time history plots for selected time intervals and/or selected data channels. The capabilities of the program are described. The card input required to define the plotting operation is described and examples of card input and the resulting plotted output are given. The examples are followed by a...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, FORTRAN, PLOTTING, TIME, USER MANUALS...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, STRUCTURAL ANALYSIS, USER MANUALS...
The Johnson Space Center Management Information System (JSCMIS) is an interface to computer data bases at the NASA Johnson Space Center which allows an authorized user to browse and retrieve information from a variety of sources with minimum effort. The User's Guide to JSCMIS is the supplement to the JSCMIS Research Report which details the objectives, the architecture, and implementation of the interface. It is a tutorial on how to use the interface and a reference for details about it. The...
Topics: NASA Technical Reports Server (NTRS), DATA BASES, DATA RETRIEVAL, MANAGEMENT INFORMATION SYSTEMS,...
The EHFR program reference information which is presented consists of the following subprogram detailed data: purpose-description of the routine, a list of the calling programs, an argument list description, nomenclature definition, flow charts, and a compilation listing of each subprogram. Each of the EHFR subprograms were developed specifically for this routine and do not have an applicability of a general nature. Single precision accuracy available on the Univac 1108 is used exclusively in...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, ENVIRONMENT MANAGEMENT, USER MANUALS...
Documentation for a computer graphics program for displays from general finite element analyses is presented. A general description of display options and detailed user instructions are given. Several plots made in structural, thermal and fluid finite element analyses are included to illustrate program options. Sample data files are given to illustrate use of the program.
Topics: NASA Technical Reports Server (NTRS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, FINITE ELEMENT METHOD,...
NASA Network Resource and Training Site
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This User's Manual describes the Hypercluster Parallel Processing Library, composed of FORTRAN-callable subroutines which enable a FORTRAN programmer to manipulate and transfer information throughout the Hypercluster at NASA Lewis Research Center. Each subroutine and its parameters are described in detail. A simple heat flow application using Laplace's equation is included to demonstrate the use of some of the library's subroutines. The manual can be used initially as an introduction to the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, LIBRARIES, PARALLEL PROCESSING...
NASA Network Resource and Training Site
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The M and DO computer systems are introduced and supplemented. The hardware and software status is discussed, along with standard processors and user libraries. Data management techniques are presented, as well as machine independence, debugging facilities, and overlay considerations.
Topics: NASA Technical Reports Server (NTRS), IBM 360 COMPUTER, INFORMATION SYSTEMS, USER MANUALS (COMPUTER...
A computer program (INPUTB) for interpolation in both space and time, and based on a linear interpolation scheme using simplex spatial regions is described. The program was developed to provide data interfacing between the output from thermal analyzers and the input to the BOPACE 3-D program. The INPUTB interpolator is of a general nature and could be used for other tasks. The INPUTB program utilizes temperature values which are given at some sequence of time for a list of strategically located...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, INTERPOLATION, STRUCTURAL ANALYSIS,...
An experimental investigation was conducted to obtain accurate data from two three-legged spacecraft landing systems for purposes of validating current and future computer programs for legged landers. Two landing-gear systems were investigated: an inverted tripod system and a cantilever system. Tests were conducted for eight landing conditions chosen to obtain stability data, maximum loads, and maximum strokes for correlation with analytical results. Data from the two models are not directly...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, LANDING GEAR, SPACECRAFT LANDING,...
The latest TEMPUS installation occurred in March, 1985. Another update is slated for early June, 1985. An updated User's Manual is in preparation and will be delivered approximately mid-June, 1985. NASA JSC has full source code listings and internal documentation for installed software. NASA JSC staff has received instruction in the use of TEMPUS. Telephone consultations have augmented on-site instruction.
Topics: NASA Technical Reports Server (NTRS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, COMPUTERIZED...
NASA Network Resource and Training Site
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Guidance is provided to the DELMAT user in the areas of purpose, use and limitations of DELMAT tapes and software. The DELMAT tape specifications is also provided. The ERB-7, ERB MAT and tape characteristics applicable to the DELMAT tapes are also summarized.
Topics: NASA Technical Reports Server (NTRS), CALIBRATING, COMPUTER PROGRAMS, RADIOMETERS, SPECIFICATIONS,...
The Mission Analysis Evaluation and Space Trajectory Operations program known as MAESTRO is described. MAESTRO is an all FORTRAN, block style, computer program designed to perform various mission control tasks. This manual is a guide to MAESTRO, providing individuals the capability of modifying the program to suit their needs. Descriptions are presented of each of the subroutines descriptions consist of input/output description, theory, subroutine description, and a flow chart where applicable....
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, MISSION PLANNING, USER MANUALS (COMPUTER...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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A user's guide for the computer program SKETCH is presented on this disk. SKETCH solves a popular problem in computer graphics-the removal of hidden lines from images of solid objects. Examples and illustrations are included in the guide. Also included is the SKETCH program, so a user can incorporate the information into a particular software system.
Topics: NASA Technical Reports Server (NTRS), USER MANUALS (COMPUTER PROGRAMS), COMPUTER PROGRAMS, COMPUTER...
An interactive trajectory optimization program is developed for use in initial fixing of launch configurations. The program is called MILTOP for Man-In-the-Loop-Trajectory Optimization-Program. The program is designed to facilitate quick look studies using man-machine decision combinations to reduce the time required to solve a given problem. MILTOP integrates the equations of motion of a point-mass in 3-Dimensions with drag as the only aerodynamic force present. Any point in time at which an...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, TRAJECTORY OPTIMIZATION, AERODYNAMIC...
A user's guide is presented for the ACCESS-2 computer program. ACCESS-2 is a research oriented program which implements a collection of approximation concepts to achieve excellent efficiency in structural synthesis. The finite element method is used for structural analysis and general mathematical programming algorithms are applied in the design optimization procedure.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DYNAMIC STRUCTURAL ANALYSIS, FINITE...
Information needed to run a computer program for the calculation of the potential flow about arbitrary three dimensional lifting configurations is presented. The program contains a geometry package which greatly reduces the task of preparing the input data. Starting from a very sparse set of coordinate data, the program automatically augments and redistributes the coordinates, calculates curves of intersection between components, and redistributes coordinates in the regions adjacent to the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, GEOMETRY, INPUT/OUTPUT ROUTINES, THREE...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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The program description and user's guide for the Downlist Requirement Integrated Verification and Evaluation (DRIVE) program is provided. The program is used to compare existing telemetry downlist files with updated downlist requirements.
Topics: NASA Technical Reports Server (NTRS), NAVIGATION, TELEMETRY, USER MANUALS (COMPUTER PROGRAMS),...
This users manual is the second part of a two-part report describing the NASA Lewis CEA (Chemical Equilibrium with Applications) program. The program obtains chemical equilibrium compositions of complex mixtures with applications to several types of problems. The topics presented in this manual are: (1) details for preparing input data sets; (2) a description of output tables for various types of problems; (3) the overall modular organization of the program with information on how to make...
Topics: NASA Technical Reports Server (NTRS), USER MANUALS (COMPUTER PROGRAMS), COMPUTER PROGRAMS, CHEMICAL...
The cloud-rise preprocessor and multilayer diffusion computer programs were used by NASA in predicting concentrations and dosages downwind from normal and abnormal launches of rocket vehicles. These programs incorporated: (1) the latest data for the heat content and chemistry of rocket exhaust clouds; (2) provision for the automated calculation of surface water pH due to deposition of HCl from precipitation scavenging; (3) provision for automated calculation of concentration and dosage...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC DIFFUSION, LAMINATES, UNIVAC 1108 COMPUTER, USER...
The software and data base management system required to assess the performance of solar heating and cooling systems installed at multiple sites is presented. The instrumentation data associated with these systems is collected, processed, and presented in a form which supported continuity of performance evaluation across all applications. The CDPS consisted of three major elements: communication interface computer, central data processing computer, and performance evaluation data base. Users of...
Topics: NASA Technical Reports Server (NTRS), COOLING SYSTEMS, DATA PROCESSING, SOLAR HEATING, SYSTEMS...
A computer program written in FORTRAN that may be used for the design analysis of radial-inflow turbines was documented. The following information is included: loss model (estimation of losses), the analysis equations, a description of the input and output data, the FORTRAN program listing and list of variables, and sample cases. The input design requirements include the power, mass flow rate, inlet temperature and pressure, and rotational speed. The program output data includes various...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DESIGN ANALYSIS, GAS TURBINES, RADIAL...
The program called CTRANS is described which was designed to perform radiative transfer computations in an atmosphere with horizontal inhomogeneities (clouds). Since the atmosphere-ground system was to be richly detailed, the Monte Carlo method was employed. This means that results are obtained through direct modeling of the physical process of radiative transport. The effects of atmopheric or ground albedo pattern detail are essentially built up from their impact upon the transport of...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC SCATTERING, CLOUDS (METEOROLOGY), COMPUTER...
NASA Network Resource and Training Site
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Instructions are given for using the DRILL computer program which converts data contained in an Interactive Computer Graphics System (IGDS) design file to production of a paper tape for driving a numerically controlled drilling machine.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DRILLS, USER MANUALS (COMPUTER PROGRAMS),...
Changes made to the Coal Gasification Project are reported. The program was developed by equilibrium combustion in rocket engines. It can be applied directly to the entrained flow coal gasification process. The particular problem addressed is the reduction of the coal data into a form suitable to the program, since the manual process is involved and error prone. A similar problem in relating the normal output of the program to parameters meaningful to the coal gasification process is also...
Topics: NASA Technical Reports Server (NTRS), CHEMICAL EQUILIBRIUM, COAL GASIFICATION, COMPUTER PROGRAMS,...
NASA Network Resource and Training Site
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The purpose of this modification to the Optical Surface Analysis Code (OSAC) is to upgrade the PSF program to allow the user to get proper diffracted energy normalization even when deliberately obscuring rays with internal obscurations.
Topics: NASA Technical Reports Server (NTRS), SURFACE PROPERTIES, DIFFRACTION, COMPUTER PROGRAMS,...
All phases of SEDS operation as well as utility routines, error messages, and system disk maintenance procedures are described. Display layouts and examples of runs are included as additional explanation to SEDS program procedures.
Topics: NASA Technical Reports Server (NTRS), DATA SYSTEMS, ELIMINATION, USER MANUALS (COMPUTER PROGRAMS),...
The NNEP is a computer program that is currently being used to simulate the thermodynamic cycle performance of almost all types of turbine engines by many government, industry, and university personnel. The NNEP uses arrays of input data to set up the engine simulation and component matching method as well as to describe the characteristics of the components. A preprocessing program (KONFIG) is described in which the user at a terminal on a time shared computer can interactively prepare the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, COMPUTERIZED SIMULATION, FORTRAN,...
PREFER is a recursive orbit determination program which is used to refine the ephemerides produced by a batch least squares program (e.g., GTDS). It is intended to be used primarily with GTDS and, thus, is compatible with some of the GTDS input/output files.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, EPHEMERIDES, ORBIT CALCULATION, RECURSIVE...
A user's guide to the network design program is presented. The program is written in FORTRAN V and implemented on a UNIVAC 1108 computer under the EXEC-8 operating system which enables the user to construct least-cost network topologies for criminal justice digital telecommunications networks. A complete description of program features, inputs, processing logic, and outputs is presented, and a sample run and a program listing are included.
Topics: NASA Technical Reports Server (NTRS), COMPUTER NETWORKS, COMPUTER PROGRAMS, LAW (JURISPRUDENCE),...
NASA Network Resource and Training Site
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FEMoM3DR is a computer code written in FORTRAN 77 to compute radiation characteristics of antennas on 3D body using combined Finite Element Method (FEM)/Method of Moments (MoM) technique. The code is written to handle different feeding structures like coaxial line, rectangular waveguide, and circular waveguide. This code uses the tetrahedral elements, with vector edge basis functions for FEM and triangular elements with roof-top basis functions for MoM. By virtue of FEM, this code can handle...
Topics: NASA Technical Reports Server (NTRS), USER MANUALS (COMPUTER PROGRAMS), FORTRAN, FINITE ELEMENT...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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An artist acquires all the necessary tools before painting a scene. In the same analogy, a software engineer needs the necessary tools to provide their design with the proper means for implementation. Ada provide these tools. Yet, as an artist's painting needs a brochure to accompany it for further explanation of the scene, an Ada design also needs a document along with it to show the design in its detailed structure and hierarchical order. Ada could be self-explanatory in small programs not...
Topics: NASA Technical Reports Server (NTRS), ADA (PROGRAMMING LANGUAGE), COMPUTER PROGRAMS, LANGUAGE...
This volume contains the complete software system documentation for the Federal Communications Commission (FCC) Transponder Loading Data Conversion Software (FIX-FCC). This software was written to facilitate the formatting and conversion of FCC Transponder Occupancy (Loading) Data before it is loaded into the NASA Geosynchronous Satellite Orbital Statistics Database System (GSOSTATS). The information that FCC supplies NASA is in report form and must be converted into a form readable by the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DATA CONVERSION ROUTINES, ORBIT SPECTRUM...
A computer program is described that checks for the correctness of chip design layout generated by the Banning Placement Routing Folding program (PRF) by verifying agreement between a specified circuit design and a corresponding computer generated circuit layout as stored on the Artwork (PRF output) tape. An example computer run is included.
Topics: NASA Technical Reports Server (NTRS), CHIPS (MEMORY DEVICES), CIRCUIT DIAGRAMS, COMPUTER PROGRAMS,...
Mathematical development is presented for the expanded capabilities of the United Technologies Research Center (UTRC) G400 Rotor Aeroelastic Analysis. This expanded analysis, G400PA, simulates the dynamics of teetered rotors, blade pendulum vibration absorbers and the higher harmonic excitations resulting from prescribed vibratory hub motions and higher harmonic blade pitch control. Formulations are also presented for calculating the rotor impedance matrix appropriate to these higher harmonic...
Topics: NASA Technical Reports Server (NTRS), AEROELASTICITY, ROTARY WINGS, USER MANUALS (COMPUTER...
The tabular display report generator (TABDIS) program is described. The program functions as a document generation tool that provides tabular displays of data stored on a data file which has been generated by a user program. The main features of the program are outlined and all necessary inputs are detailed.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, REPORT GENERATORS, USER MANUALS (COMPUTER...
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Computer programs for the design of analog and digital flight control systems are documented. The program DIGADAPT uses linear-quadratic-gaussian synthesis algorithms in the design of command response controllers and state estimators, and it applies covariance propagation analysis to the selection of sampling intervals for digital systems. Program SCHED executes correlation and regression analyses for the development of gain and trim schedules to be used in open-loop explicit-adaptive control...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, FLIGHT CONTROL, USER MANUALS (COMPUTER...
The computer program is discussed which can read several input files and provide a best set of values for the functions provided by the user, using either C-statistic or the chi(exp 2) statistic method. The program consists of one main routine and several functions and subroutines. Detail descriptions of each function and subroutine is presented. A brief description of the C-statistic and the reason for its application is also presented.
Topics: NASA Technical Reports Server (NTRS), FUNCTIONS, STATISTICAL ANALYSIS, SUBROUTINES, USER MANUALS...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, ROCKET EXHAUST, USER MANUALS (COMPUTER...
NASA Network Resource and Training Site
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Theory, design and operation of the computer programs which automate the reduction of joint radiometer and scatterometer observations are presented. The programs reduce scatterometer measurements to the normalized scattering coefficient; whereas the radiometer measurements are converted into antenna temperatures. The programs are both investigator and user oriented. Supplementary parameters are provided to aid in the interpretation of the observations. A hierarchy of diagnostics is available to...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DATA REDUCTION, REMOTE SENSORS, USER...
The Flexible Manipulator Analysis Program (FMAP) is a collection of FORTRAN coding to allow easy analysis of the flexible dynamics of mechanical arms. The user specifies the arm configuration and parameters and any or all of several frequency domain analyses to be performed, while the time domain impulse response is obtained by inverse Fourier transformation of the frequency response. A detailed explanation of how to use FMAP is provided.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, CONTROLLABILITY, MANIPULATORS, STRUCTURAL...
In order to effectively incorporate MINIVER into the AVID system, several changes to MINIVER were made. The thermal conduction options in MINIVER were removed and a new Explicit Interactive Thermal Structures (EXITS) code was developed. Many upgrades to the MINIVER code were made and a new Langley version of MINIVER called LANMIN was created. A user input guide for LANMIN is provided.
Topics: NASA Technical Reports Server (NTRS), AEROTHERMODYNAMICS, HYPERSONIC FLOW, THERMAL PROTECTION,...
To achieve the capability required by the Screwworm Eradication Data System (SEDS) and to process the 14-track analog tapes supplied by the National Oceanic and Atmospheric Administration, the existing Earth Resources Preprocessor Software Subsystem (ERPSS) was enhanced. A brief overview of the ERPSS is given along with descriptions of only those computer program components that were modified to meet the SEDS requirements.
Topics: NASA Technical Reports Server (NTRS), CENTRAL PROCESSING UNITS, COMPUTER PROGRAMS, ELIMINATION,...
Documentation and user information for the S-191 single spectral scan analysis program are reported. A breakdown of the computational algorithms is supplied, followed by the program listing and examples of sample output. A copy of the flow chart which describes the driver routine in the body of the main program segment is included.
Topics: NASA Technical Reports Server (NTRS), ALGORITHMS, COMPUTER PROGRAMS, SPECTRUM ANALYSIS, USER...
The use of the NASA'S ENERGY COST ANALYSIS PROGRAM (NECAP) is described. Supplementary information on new capabilities and program options is also provided. The Control Data Corporation (CDC) NETWORK OPERATING SYSTEM (NOS) is discussed. The basic CDC NOS instructions which are required to successfully operate NECAP are provided.
Topics: NASA Technical Reports Server (NTRS), ECONOMIC FACTORS, ENERGY BUDGETS, USER MANUALS (COMPUTER...
NASA Network Resource and Training Site
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SPAR is a system of related programs which may be operated either in batch or demand (teletype) mode. Information exchange between programs is automatically accomplished through one or more direct access libraries, known collectively as the data complex. Card input is command-oriented, in free-field form. Capabilities available in the first production release of the system are fully documented, and include linear stress analysis, linear bifurcation buckling analysis, and linear vibrational...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, STRESS ANALYSIS, USER MANUALS (COMPUTER...
National Aeronautics and Space Administration (NASA) Contract NAS7-961 (A Small Business Innovation and Research (SBIR) contract from NASA) involved research dealing with remote structural damage detection using the concept of substructures. Several approaches were developed. The main two were: (1) the module (substructure) transfer function matrix (MTFM) approach; and (2) modal strain energy distribution method (MSEDM). Either method can be used with a global structure; however, the focus was...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DAMAGE, MODULES, REMOTE SENSING,...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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A floppy disk utility program is described which transfers programs between files on a hard disk and floppy disk. It also copies the data on one floppy disk onto another floppy disk and compares the data. The program operates on the Data General NOVA-4X under the Real Time Disk Operating System. Sample operations are given.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, MAGNETIC DISKS, USER MANUALS (COMPUTER...
This Software Guide (SG) describes the software developed to test the Assessment Environment for Complex Systems (AECS) by the West Virginia High Technology Consortium (WVHTC) Foundation's Mission Systems Group (MSG) for the National Aeronautics and Space Administration (NASA) Aeronautics Research Mission Directorate (ARMD). This software is referred to as the AECS Test Project throughout the remainder of this document. AECS provides a framework for developing, simulating, testing, and...
Topics: NASA Technical Reports Server (NTRS), FLIGHT CONTROL, AVIONICS, COMPLEX SYSTEMS, COMPUTER PROGRAMS,...
The Spacelab payload operations control center (POCC) timeline analysis program which is used to provide POCC activity and resource information as a function of mission time is described. This program is fully automated and interactive, and is equipped with tutorial displays. The tutorial displays are sufficiently detailed for use by a program analyst having no computer experience. The POCC timeline analysis program is designed to operate on the VAX/VMS version V2.1 computer system.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, EARTH TERMINALS, PAYLOAD CONTROL,...
The differential equations of motion for the lateral and torsional deformations of a nonlinearly twisted rotor blade in steady flight conditions together with those additional aeroelastic features germane to composite bearingless rotors are derived. The differential equations are formulated in terms of uncoupled (zero pitch and twist) vibratory modes with exact coupling effects due to finite, time variable blade pitch and, to second order, twist. Also presented are derivations of the fully...
Topics: NASA Technical Reports Server (NTRS), AEROELASTICITY, ROTARY WINGS, ROTOR AERODYNAMICS, USER...
Detailed software documentation of the digital computer program FINDS (Fault Inferring Nonlinear Detection System) Version 3.0 is provided. FINDS is a highly modular and extensible computer program designed to monitor and detect sensor failures, while at the same time providing reliable state estimates. In this version of the program the FINDS methodology is used to detect, isolate, and compensate for failures in simulated avionics sensors used by the Advanced Transport Operating Systems...
Topics: NASA Technical Reports Server (NTRS), AVIONICS, DETECTION, FAILURE ANALYSIS, FAULT TOLERANCE,...
A guide for DTIZE, a two dimensional digitizing program with graphical editing capability, is presented. DTIZE provides the capability to simultaneously create and display a picture on the display screen. Data descriptions may be permanently saved in three different formats. DTIZE creates the picture graphics in the locator mode, thus inputting one coordinate each time the terminator button is pushed. Graphic input devices (GIN) are also used to select function command menu. These menu commands...
Topics: NASA Technical Reports Server (NTRS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, USER MANUALS (COMPUTER...
The computer program known as QR is described. Classical control systems analysis and synthesis (root locus, time response, and frequency response) can be performed using this program. Programming details of the QR program are presented.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, FLOW CHARTS, LINEAR PROGRAMMING, LINEAR...
Data from a G-189A execution is formatted and plotted. The plotting may be done at the time of execution of the program or stored on tape for processing at a later time.
Topics: NASA Technical Reports Server (NTRS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, DATA PROCESSING,...
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Operational information is detailed for a single-vehicle weighted least squares orbit determination program with the capability of generating and storing emphemerides for three tracking Data Relay Satellites. The tape and card inputs and input format, input tape unit assignments, a program deck setup for a program run, and sample cases illustrating the output of typical runs are described.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, NAVIGATION AIDS, ORBIT CALCULATION, USER...
A method for updating and maintaining the G189A program library and documentation for all program users is provided. The effort also involves: (1) providing instruction and recommendations for the use and application of the program, (2) developing new subroutines and the logic required for new simulations, (3) supporting special analyses required by CSD, and (4) conduct studies to define and understand the interaction of the shuttle ECLSS and propose payload ECLSS and ECS designs.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, ENVIRONMENTAL CONTROL, LIFE SUPPORT...
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Data base uniformization refers to the building of a common user interface facility to support uniform access to any or all of a collection of distributed heterogeneous data bases. Such a system should enable a user, situated anywhere along a set of distributed data bases, to access all of the information in the data bases without having to learn the various data manipulation languages. Furthermore, such a system should leave intact the component data bases, and in particular, their already...
Topics: NASA Technical Reports Server (NTRS), ALGORITHMS, COMPUTER PROGRAMS, DATA BASE MANAGEMENT SYSTEMS,...
A FORTRAN IV computer program used to perform modal synthesis of structures by stiffness coupling, using the dynamic transformation method is described. The program was named SCAMP (Stiffness Coupling Approach Modal-Synthesis Program). The program begins with the entry of a substructure's physical mode shapes and eigenvalues or a substructure's mass and stiffness matrix. If the mass and stiffness matrices are entered, the eigen problem for the individual substructure is solved. Provisions are...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, MODAL RESPONSE, STIFFNESS MATRIX, USER...
An updated version of the George C. Marshall Space Flight Center Crack Growth Analysis Program is described. The updated computer program has significantly expanded capabilities over the original one. This increased capability includes an extensive expansion of the library of stress intensity factors, plotting capability, increased design iteration capability, and the capability of performing proof test logic analysis. The technical approaches used within the computer program are presented, and...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, CRACK PROPAGATION, USER MANUALS (COMPUTER...
AUTOMESH-2D is a computer program specifically designed as a preprocessor for the scattering analysis of two dimensional bodies by the finite element method. This program was developed due to a need for reproducing the effort required to define and check the geometry data, element topology, and material properties. There are six modules in the program: (1) Parameter Specification; (2) Data Input; (3) Node Generation; (4) Element Generation; (5) Mesh Smoothing; and (5) Data File Generation.
Topics: NASA Technical Reports Server (NTRS), GRID GENERATION (MATHEMATICS), SCATTERING, TWO DIMENSIONAL...
The BRAVO User's Manual is presented which describes the BRAVO methodology in terms of step-by-step procedures, so that it may be used as a tool for a team of analysts performing cost effectiveness analyses on potential future space applications. BRAVO requires a relatively general set of input information and a relatively small expenditure of resources. For Vol. 1, see N74-12493; for Vol. 2, see N74-14530.
Topics: NASA Technical Reports Server (NTRS), COST EFFECTIVENESS, INTERFACES, OPERATIONS RESEARCH,...
The ISAVF facility is primarily an interconnected system of computers, special purpose real time hardware, and associated generalized software systems, which will permit the Instrument System Analysts, Design Engineers and Instrument Scientists, to perform trade off studies, specification development, instrument modeling, and verification of the instrument, hardware performance. It is not the intent of the ISAVF to duplicate or replace existing special purpose facilities such as the Code 710...
Topics: NASA Technical Reports Server (NTRS), COMPUTER SYSTEMS PERFORMANCE, PROVING, SYSTEMS ANALYSIS,...
This user's manual describes the revised version of the computer program GRADE(1), which designs and analyzes heat pipes with graded porosity fibrous slab wicks. The revisions are: (1) automatic calculation of the minimum condenser-end stress that will not result in an excess-liquid puddle or a liquid slug in the vapor space; (2) numerical solution of the equations describing flow in the circumferential grooves to assess the burnout criterion; (3) calculation of the contribution of excess...
Topics: NASA Technical Reports Server (NTRS), FIBERS, HEAT PIPES, USER MANUALS (COMPUTER PROGRAMS), WICKS,...
A FORTRAN subroutine is described which provides the capability to plot three-dimensional data on an interactive cathode-ray-tube computer terminal or conventional plotter. The plotted data, which must be described in terms of a series of two-dimensional curves, appeared to form a surface in three-dimensional space. Features are included of the subroutine's capability for hidden-line computations. User instructions and sample programs are described.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DATA PROCESSING TERMINALS, FORTRAN,...
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CARE 3 predicts the unreliability of highly reliable reconfigurable fault-tolerant systems that include redundant computers or computer systems. CARE3MENU is a user-friendly interface used to create an input for the CARE 3 program. The CARE3MENU interface has been designed to minimize user input errors. Although a CARE3MENU session may be successfully completed and all parameters may be within specified limits or ranges, the CARE 3 program is not guaranteed to produce meaningful results if the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER NETWORKS, FAULT TOLERANCE, REDUNDANCY, RELIABILITY,...
The INDES computer program, a multistep input design program used as part of a data processing technique for rotorcraft systems identification, is described. Flight test inputs base on INDES improve the accuracy of parameter estimates. The input design algorithm, program input, and program output are presented.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, INPUT, NONLINEAR SYSTEMS, ROTARY WING...
As the size and complexity of three dimensional volume grids increases, there is a growing need for fast and efficient 3D volumetric elliptic grid solvers. Present day solvers are limited by computational speed and do not have all the capabilities such as interior volume grid clustering control, viscous grid clustering at the wall of a configuration, truncation error limiters, and convergence optimization residing in one code. A new volume grid generator, 3DMAGGS (Three-Dimensional Multi-Block...
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL GRIDS, COMPUTER PROGRAMS, GRID GENERATION...
A computer program based on state of the art compressor and structural technologies applied to bladed shrouded disc was developed and made operational in NASTRAN Level 16. Aeroelastic analyses, modes and flutter. Theoretical manual updates are included.
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC LOADS, AEROELASTICITY, FLUTTER ANALYSIS, MODAL...
The thermodynamic characteristics of the Stirling engine were analyzed and modeled on a computer to support its development as a possible alternative to the automobile spark ignition engine. The computer model is documented. The documentation includes a user's manual, symbols list, a test case, comparison of model predictions with test results, and a description of the analytical equations used in the model.
Topics: NASA Technical Reports Server (NTRS), AUTOMOBILE ENGINES, STIRLING CYCLE, STIRLING ENGINES,...
DESAP 2 is described as a finite element program for computer-automated, minimum weight design of elastic structures with constraints on stresses (including local instability criteria) and buckling loads. No limits are placed on the number of load conditions for stress-constrained design, but only one of these load conditions can be chosen as the potential buckling load. A substantial portion of DESAP 2, particularly the analysis of the prebuckling state, is derived from the SOLID SAP finite...
Topics: NASA Technical Reports Server (NTRS), BUCKLING, COMPUTER PROGRAMS, STRESS ANALYSIS, STRUCTURAL...
TRAP/SEE is a PC-based computer code with a user-friendly interface which predicts the ionizing radiation exposure of spacecraft having orbits in the Earth's trapped radiation belts. The code incorporates the standard AP8 and AE8 trapped proton and electron models but also allows application of an improved database interpolation method. The code treats low-Earth as well as highly-elliptical Earth orbits, taking into account trajectory perturbations due to gravitational forces from the Moon and...
Topics: NASA Technical Reports Server (NTRS), IONIZING RADIATION, RADIATION TRAPPING, MODELS, COMPUTER...
Approximate nonlinear inviscid theoretical techniques for predicting aerodynamic characteristics and surface pressures for relatively slender vehicles at supersonic and moderate hypersonic speeds were developed. Emphasis was placed on approaches that would be responsive to conceptual configuration design level of effort. Second order small disturbance theory was utilized to meet this objective. Numerical codes were developed for analysis and design of relatively general three dimensional...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC CHARACTERISTICS, AERODYNAMIC CONFIGURATIONS,...
A design program for an integrated Stirling cycle cryocooler was written on an IBM-PC computer. The program is easy to use and shows the trends and itemizes the losses. The calculated results were compared with some measured performance values. The program predicts somewhat optimistic performance and needs to be calibrated more with experimental measurements. Adding a multiplier to the friction factor can bring the calculated rsults in line with the limited test results so far available. The...
Topics: NASA Technical Reports Server (NTRS), COMPUTER AIDED DESIGN, COMPUTER PROGRAMS, COOLERS, CRYOGENIC...
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A limited capability form of NASTRAN level 16 is presented to meet the needs of universities and small consulting firms. The input cards, the programming language of the direct matrix abstraction program, the plotting, the problem definition, and the modules' diagnostic messages are described. Sample problems relating to the analysis of linear static, vibration, and buckling are included. This guide can serve as a handbook for instructional courses in the use of NASTRAN or for users who need...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, NASTRAN, STRUCTURAL ANALYSIS, USER MANUALS...
The Timeline Resource Analysis Program (TRAP), developed for scheduling and timelining problems, is described. Given an activity network, TRAP generates timeline plots, resource histograms, and tabular summaries of the network, schedules, and resource levels. It is written in ANSI FORTRAN for the Honeywell SIGMA 5 computer and operates in the interactive mode using the TEKTRONIX 4014-1 graphics terminal. The input network file may be a standard SIGMA 5 file or one generated using the...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, MANAGEMENT PLANNING, RESOURCES,...
The 7 by 10 foot high speed tunnel performs a wide range of tests employing a variety of model installation methods. To support the reduction of static data from this facility, a generalized wind tunnel data reduction program had been developed for use on the Langley central computer complex. The capabilities of a version of this generalized program adapted for real time use on a dedicated on-site computer are discussed. The input specifications, instructions for the console operator, and full...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DATA REDUCTION, REAL TIME OPERATION,...
An annotated bibliography of technical papers, documents, and memorandums produced by or related to the Software Engineering Laboratory is presented. More than 75 publications are summarized. An index of these publications by subject is also included. These publications cover many areas of software engineering and range from research reports to software documentation.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMMING, COMPUTER PROGRAMS, ABSTRACTS,...
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The activities of a field test site for the Software Engineering Institute's software process definition project are discussed. Products tested included the improvement model itself, descriptive modeling techniques, the CMM level 2 framework document, and the use of process definition guidelines and templates. The software process improvement model represents a five stage cyclic approach for organizational process improvement. The cycles consist of the initiating, diagnosing, establishing,...
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, DESIGN ANALYSIS, MODELS, SOFTWARE...
For abstract, see N77-18472.
Topics: NASA Technical Reports Server (NTRS), BUCKLING, COMPUTER PROGRAMS, STRESS ANALYSIS, STRUCTURAL...
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MAPPER is a set of software tools designed to let users create and manipulate map projections on a personal computer (PC). The capability exists to generate five popular map projections. These include azimuthal, cylindrical, mercator, lambert, and sinusoidal projections. Data for projections are contained in five coordinate databases at various resolutions. MAPPER is managed by a system of pull-down windows. This interface allows the user to intuitively create, view and export maps to other...
Topics: NASA Technical Reports Server (NTRS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, MAPPING, USER MANUALS...
This report contains a complete list of EOS/AMSU-A commands for all modes of operation and testing with a description of their effects. There are no EOS/AMSU-A critical commands i.e., commands that could damage the instrument in any situation.
Topics: NASA Technical Reports Server (NTRS), COMPUTER PROGRAMS, EARTH OBSERVING SYSTEM (EOS), MICROWAVE...