From: MERC::"uunet!ARISIA.dnet.ge.com!AITGW::marketing@cosmic.cosmic.uga.edu" 3-SEP-1992 16:38:18.75 To: everhart CC: Subj: COSMIC Info, September 1992 Received: by AITGW.DECnet (utk-mail11 v1.5) ; Thu, 3 Sep 92 16:38:24 EDT Received: from cossack.cosmic.uga.edu by aitgw.ge.com (5.65/GE Gateway 1.5) id AA07813; Thu, 3 Sep 92 16:38:09 -0400 Received: from cossack.cosmic.uga.edu by cossack.cossack.cosmic.uga.edu id aa06951; 3 Sep 92 16:19 EDT Received: from cos1.cosmic.uga.edu by cossack.cossack.cosmic.uga.edu id aa06947; 3 Sep 92 15:41 EDT Received: by cosmic.cosmic.uga.edu (MX V3.1) id 30404; Thu, 03 Sep 1992 15:37:19 EDT Sender: marketing@cosmic.cosmic.uga.edu Mmdf-Warning: Parse error in original version of preceding line at cossack.cossack.cosmic.uga.edu Date: Thu, 03 Sep 1992 15:37:17 EDT From: marketing@cosmic.cosmic.uga.edu To: dcosmic-list@cossack.cosmic.uga.edu Message-Id: <00960127.32D3EBE0.30404@cosmic.cosmic.uga.edu> Subject: COSMIC Info, September 1992 Questions? Send them to service@cossack.cosmic.uga.edu ***COSMIC E-MAIL UPDATE*** The following notes briefly describe new and updated programs that have been added to the COSMIC inventory in September, 1992. You may request full abstracts of the programs (we recommend you do this before you order) or additional information about any of our other services by contacting the COSMIC Customer Support staff. These programs are made available for re-use by domestic industries, government agencies, and universities under NASA's Technology Utilization Program. Source code is included and programs and documents may be copied without restriction for use by the acquiring institution unless otherwise noted. Educational discounts may apply. You may download the DOS version of the 1992 COSMIC catalog via anonymous ftp or via internet mailings. Online access via modem or telnet is also available. For more information, contact COSMIC customer support. TELEPHONE AREA CODE CHANGED Please note that COSMIC's telephone area code is now 706. SGI version of TAE TAE Plus (Transportable Applications Environment) provides a generic, user interface development and management system that allows anyone, programmers and non-programmers alike, to create a sophisticated graphical user interface for virtually any type of application. TAE Plus utilizes MIT's X Window System, Version 11, Release 4, and the Open Software Foundation's Motif Toolkit. TAE Plus is portable across a wide range of computing platforms using either the UNIX or VAX/VMS operating systems, and is capable of generating code in C, FORTRAN, and Ada, as well as in the high-level TAE Command Language (TCL). A new Silicon Graphics version is now available. Site license, $750. Electronic Conference for TAE+ Users: Would you like to get in contact with other TAE Plus users? Simply send a single line message to listserv@cossack.cosmic.uga.edu saying SUBSCRIBE TAE-LIST (hyphen required). Upon subscription you will receive a mail message instructing you how to participate in the conference from that point forward. FAILURE ANALYSIS When a system fails, it is necessary to determine the cause of the malfunction in order to restore the system to its functional capacity. The Fault Tree Diagnosis System (FTDS) from NASA Ames Research Center is an automated diagnostic system which identifies the likely causes of a specified failure based upon information represented in system reliability models called fault trees. A fault tree is a graphical representation of the logical relationships among the components in a system. The structure of the tree describes how the system can reach an undesired state. FTDS is a modified implementation of the failure cause identification phase of Narayanan and Viswanadhams' methodology for knowledge acquisition and reasoning in the failure analysis of systems. This method is based on knowledge bases of if-then rules constructed directly from a fault tree representation of the system to be diagnosed. In FTDS, the knowledge base of if- then rules has been replaced with an object-oriented fault tree representation. This enhancement yields more efficient failure cause identification and allows dynamic updating of the knowledge base. FTDS, ARC-13019, is written in C language, C++, and Common LISP for use on UNIX workstations. The diagnosis module itself requires Common Lisp with Flavors extensions and foreign functions extensions. This module can be run on a variety of platforms from a Mac II to a Sun SPARCstation, as long as the LISP environment is available. The two graphical utility programs that make using the diagnosis module much easier (Displayer and Tree Editor) require LEX, X11 release 4, Interviews 2.6, and Gnu C++ 1.37. A color monitor is recommended. The standard distribution medium for FTDS is a .25 inch streaming magnetic tape cartridge in UNIX tar format. It is also available on a 3.5 inch diskette in UNIX tar format. Program $1,750; documentation $16. IMAGE PROCESSING: ELAS version 9.0 UPDATE The Science and Technology Laboratory Applications Software (ELAS) from NASA's Stennis Space Center was originally designed to analyze and process digital imagery data, specifically remotely-sensed scanner data. This capability includes the processing of Landsat multispectral data; aircraft-acquired scanner data; digitized topographic data; and numerous other ancillary data, such as soil types and rainfall information, that can be stored in digitized form. ELAS has the subsequent capability to geographically reference this data to dozens of standard, as well as user created projections. As an integrated image processing system, ELAS offers the user of remotely-sensed data a wide range of capabilities in the areas of land cover analysis and general purpose image analysis. Over 230 modules are presently available to aid the user in performing a wide range of land cover analyses and manipulation. An important feature of the ELAS subsystem is that its structure allows new applications modules to be easily integrated in the future. ELAS has as a standard the flexibility to process data elements exceeding 8 bits in length, including floating point (noninteger) elements and 16 or 32 bit integers. Thus it is able to analyze and process "non-standard" nonimage data. The VAX and Concurrent versions of ELAS 9.0 are written in FORTRAN and ASSEMBLER for DEC VAX series computers running VMS and Concurrent computers running MTM. The Sun, Masscomp, and Silicon Graphics versions of ELAS 9.0 are written in FORTRAN 77 and C-LANGUAGE for Sun4 series computers running SunOS, Masscomp computers running UNIX, and Silicon Graphics IRIS computers running IRIX. The Concurrent version requires at least 15 bit addressing and a direct memory access channel. The VAX and Concurrent versions of ELAS both require floating-point hardware, at least 1Mb of RAM, and approximately 70Mb of disk space. Both versions also require a COMTAL display device in order to display images. For the Sun, Masscomp, and Silicon Graphics versions of ELAS, the disk storage required is approximately 115Mb, and a minimum of 8Mb of RAM is required for execution. The Sun version of ELAS requires either the X-Window System Version 11 Revision 4 or Sun OpenWindows Version 2. The Masscomp version requires a GA1000 display device and the associated "gp" library. The Silicon Graphics version requires Silicon Graphics' GL library. ELAS display functions will not work with a monochrome monitor. The standard distribution medium for the VAX version (ERL10017) is a set of two 9-track 1600 BPI magnetic tapes in DEC VAX BACKUP format. This version is also available on a TK50 tape cartridge in DEC VAX BACKUP format. The standard distribution medium for the Concurrent version (ERL-10013) is a set of two 9-track 1600 BPI magnetic tapes in Concurrent BACKUP format. The standard distribution medium for the Sun version (SSC-00019) is a .25 inch streaming magnetic tape cartridge in UNIX tar format. The standard distribution medium for the Masscomp version, (SSC- 00020) is a .25 inch streaming magnetic tape cartridge in UNIX tar format. The standard distribution medium for the Silicon Graphics version (SSC-00021) is a .25 inch streaming magnetic IRIS tape cartridge in UNIX tar format. Program $2,000; documentation $188. Electronic Conference for ELAS Users: Would you like to get in contact with other ELAS users? Simply send a single line message to listserv@cossack.cosmic.uga.edu saying SUBSCRIBE ELAS-LIST (hyphen required). Upon subscription you will receive a mail message instructing you how to participate in the conference from that point forward. AVIONICS MIST, the Minimum-State Method computer program from NASA Langley Research Center, facilitates the design of lower-order control systems, analysis of control system performance, and near real- time simulation of aeroservoelastic phenomena such as the outboard-wing acceleration response to gust velocity. Engineers using this program will be able to calculate minimum-state rational approximations of the generalized unsteady aerodynamic forces. Using the Minimum-State formulation of the state-space equations, they will be able to obtain state-space models with good open-loop characteristics while reducing the number of aerodynamic equations by an order of magnitude more than with traditional approaches. These low-order state-space mathematical models are good for design and simulation of aeroservoelastic systems. The computer program, MIST, accepts tabular values of the generalized aerodynamic forces over a set of reduced frequencies. It then determines approximations to these tabular data in the LaPlace domain using rational functions. MIST provides the capability to select the denominator coefficients in the rational approximations, to selectably constrain the approximations without increasing the problem size, and to determine and emphasize critical frequency ranges in determining the approximations. MIST has been written to allow two types of data weighting options. In both cases, the resulting approximations yield a relatively low number of aerodynamic lag states in the subsequent state-space model. MIST, LAR-14893, is written in ANSI FORTRAN 77 for DEC VAX series computers running VMS. It requires approximately 1Mb of RAM for execution. The standard distribution medium for this package is a 9-track 1600 BPI magnetic tape in DEC VAX FILES-11 format. It is also available on a TK50 tape cartridge in DEC VAX BACKUP format. Program $600; documentation $19. NUCLEAR ROCKET OPTIMIZATION A significant amount of time can be spent trying to accurately estimate nuclear rocket engine weight in order to arrive at the minimum weight engine based on the desired engine performance. This process not only requires the engineer to be knowledgeable about the major dimensions of nuclear rocket engines, but also demands familiarity with engine weight characteristics. NOP, from NASA Lewis Research Center, is a versatile digital computer program developed for the parametric analysis of beryllium- reflected, graphite-moderated rocket engines. The program facilitates the analysis of engine performances such as specific impulse, engine power, engine cycle type, and engine design constraints arising from complications of fuel loading and internal temperature gradients. The program is capable of analyzing the effect of specific impulse, engine power or thrust, nozzle expansion ratio, nozzle chamber pressure, core pressure drop, and coolant channel diameter on the engine weight of a nuclear rocket engine. In addition, NOP analyzes engines employing either a hot bleed cycle, a full topping cycle, or a partial topping cycle. In addition to predicting the minimum weight analysis, NOP produces a variety of preliminary engine designs which readily indicate the weight penalty associated with non-minimum weight engine designs. NOP, LEW-15474, is written in standard FORTRAN 77 to be machine independent. It has been successfully implemented on a Sun running SunOS, an IBM PC running MS-DOS, and a DEC VAX running VMS. It required 95K of RAM under SunOS 4.1.1, 163K of RAM under MS-DOS 5.0, and 368K of RAM under VMS 5-4.3. A sample MS-DOS executable is provided on the distribution medium. The standard distribution medium for NOP is a set of two 5.25 inch 360K MS-DOS format diskettes. It is also available on a 3.5 inch diskette in UNIX tar format. Program $750; documentation $82. FLUID FLOW DUCT6D, from NASA Marshall Space Flight Center, is a FORTRAN program for enhancing the post-processing of PATRAN line element models, especially dynamic models of ducts and their contained fluid. DUCT6D presumes a coupled duct-fluid dynamic system has been analyzed with line elements representing the beam properties of the duct and 1-dimensional acoustic properties of the fluid. As inputs, DUCT6D takes the geometry data from the model, and the static, modal, or transient displacement data from the solution. DUCT6D's output represents the duct-fluid system's geometry and results using 3-dimensional shell elements. The shell element display allows visualization of the duct cross-sectional dimensions and cross-sectional rotations due to bending or torsion. In addition, acoustic pressures in the duct are represented with color and can be animated simultaneously with the structural displacements, thus conveying the analysis results far better than animations of the original line element model. To make use of DUCT6D, the user must have at least a minimal knowledge of PATRAN. The format of DUCT6D's output is a PATRAN neutral file and PATRAN Command Language (PCL) instructions. The PCL instructions automate the animation process, directing PATRAN how and where to read the animation data. Therefore, the users' skills need only include the ability to input a neutral format geometry, and execute a PCL. DUCT6D, MFS-28750, is written in FORTRAN for use on SGI series computers. A minimum of 300K of RAM is required for execution. The standard distribution medium for DUCT6D is a .25 inch streaming magnetic tape cartridge in UNIX tar format. Program $250; documentation $13. NASTRAN UTILITY Delaminations near the outer surface of a laminate are susceptible to local buckling and buckling-induced delamination propagation when the laminate is subjected to transverse impact loading. This results in a loss of stiffness and strength. TRBUCKL is an unique dynamic delamination buckling and delamination propagation analysis capability that has been incorporated into the 1992 release of the structural analysis program, COSMIC NASTRAN. A procedure file for NASTRAN, TRBUCKL predicts both impact induced buckling in composite laminates with initial delaminations and the strain energy release rate due to extension of the delamination. In addition, the file is useful in calculating the dynamic delamination strain energy release rate for a composite laminate under impact loading, which simplifies the simulation of progressive crack extension. TRBUCKL, LEW-15323, is a DMAP Alter for NASTRAN. It is intended for use only with the COSMIC NASTRAN Direct Transient Analysis (RF 9) solution sequence. The program is available as a listing only for $50. 3RD ANNUAL CLIPS USERS GROUP CONFERENCE ***This conference has been canceled and will be rescheduled*** To contact the CLIPS User's Group: Steve Albrecht, CLIPS USERS GROUP Secretary/Treasurer 73657.1342@compuserve.com (708) 657-9712 UNIX EXPO Look for Richard Saunders and the COSMIC Exhibit at UNIX EXPO, New York, Spetember 22-24. REUSE EDUCATION WORKSHOP A Reuse Education Workshop will be held September 23-24 in Morgantown, West Virginia. The Workshop is sponsored by AdaNET, ASSET, CARDS, and WVU. Subjects to be covered are: Software reuse in computer science courses Domain analysis System analysis and design for reuse Libraries/environments for software engineering Management level training For more information: Chuck Lillie ASSET (SAIC) 2611 Cranberry Square Morgantown, WV 26505 (304) 594-1762 NETWORLD Pat Mortenson will represent COSMIC in the NASA exhibit at NETWORLD, October 13-15, Dallas. MATERIALS EXPO Tom Broom will man a COSMIC exhibit booth at Materials Expo '92, November 2-5, Chicago. NEURAL NETWORK CONFERENCE - NETS USER'S GROUP NASA Johnson Space Center, in conjunction with SimTec92, will host a neural network conference November 4-6, 1992. The meeting site is the South Shore Harbor conference facilty near the NASA Johnson Space Center in Houston, Texas. The conference will also feature a user's group meeting for NETS, a neural network simulation package distributed by COSMIC. For details on the NETS activity contact Dr. Robert Shelton, phone (713) 483-5901 (shelton@gothamcity.jsc.nasa.gov). SUPERCOMPUTING '92 Pat Mortenson will distribute literature in the research exhibit area at Supercomputing '92, Minniapolis, November 16-20. NASTRAN TRAINING, COLLOQUIUM A NASTRAN Workshop, featuring hands-on training in the powerful finite element analysis tool, will be held December 1-4, 1992 at the University of Georgia. The 21st NASTRAN User's Colloquium will be held April 26-30, 1993, in Tampa, Florida. For more information on either activity: Shirley Sanders COSMIC (706) 542-3265 PARALLEL COMPUTATION NASA Langley Research Center will host the 2nd Symposium on Parallel Computational Methods for Large Scale Structural Analysis and Design, February 24-25, 1993 in Norfolk, VA. For more information contact: Olaf Storaasli NASA Langley Research Center Mail Stop 240 Hampton, VA 23665-5225 olaf_storaasli@sdmail.larc.nasa.gov Ordering COSMIC Software: The COSMIC Order Department accepts checks, official pre-printed purchase order forms, MasterCard, and VISA. To speed delivery, COSMIC will process purchase orders that are FAXed to (706) 542- 4807 and followed up with a mailed copy. Credit card orders may be called in to the Order Department at (706) 542-3265. Thank you for your continued interest: COSMIC The University of Georgia 382 East Broad Street Athens, GA 30602 Phone: (706) 542-3265 FAX: (706) 542-4807 Internet: service@cossack.cosmic.uga.edu