simulation@uflorida.cis.ufl.edu (Moderator: Paul Fishwick) (06/27/91)
Volume: 22, Issue: 5, Wed Jun 26 13:01:05 EDT 1991 +----------------+ | TODAY'S TOPICS | +----------------+ (1) WANTED: N Body Simulation Programs (2) RE: Simulating Wheels (3) CALL: Simulation in Engineering Education (4) RE: Simulation Model Development (5) Connection Machine Application Workshop * Moderator: Paul Fishwick, Univ. of Florida * Send topical mail to: simulation@bikini.cis.ufl.edu OR post to comp.simulation via USENET * Archives available via FTP to bikini.cis.ufl.edu (128.227.224.1). Login as 'ftp', use your last name as the password, change directory to pub/simdigest. Do 'type binary' before any file xfers. * Simulation Tools available by doing above and changing the directory to pub/simdigest/tools. ----------------------------------------------------------------------------- Date: Thu, 20 Jun 91 14:29:21 -0400 From: "Paul Fishwick" <fishwick@fish.cis.ufl.edu> To: simulation@ufl.edu >From uflorida!caen!sol.ctr.columbia.edu!ira.uka.de!sun.rhrk.uni-kl.de!starke Thu Jun 20 14:29:08 EDT 1991 Article: 594 of comp.theory.dynamic-sys Path: uflorida!caen!sol.ctr.columbia.edu!ira.uka.de!sun.rhrk.uni-kl.de!starke From: starke@rhrk.uni-kl.de (Gerolf Starke [mw]) Newsgroups: comp.theory.dynamic-sys Subject: WANTED: n bodies simulation programs Date: 20 Jun 91 15:46:12 GMT Organization: University of Kaiserslautern, Germany Dear net! I'm looking for programs, simulating n-bodies-problems. They should be able to produce graphic outputs and should produce the equations too. The program should run on sun or pc machines. Any e-mail-reply is welcome. Thanks in advance. Gerolf Starke ------------------------------ Date: Fri, 21 Jun 91 16:28:18 -0400 From: prentice@gadget.alias.com (Bob Prentice) To: simulation@bikini.cis.ufl.edu Subject: Re: SIMULATION DIGEST V22 N4 REF: Peter Leaback's "Simulating Wheels" This is truly a classic in the world of flight simulation. Any simulator evaluation pilot will tell you, the weakest aspect of the handling qualities of a flight simulator is ground handling. I have heard it said that a good car simulator is much more difficult to build than a good flight simulator (real-time that is). The lateral or turning force (moment) is indeed proportional to the lateral velocity of the wheel, however this is a very high gain system. If the proportional constant used to calculate this force is adjusted to a value large enough to give adequate handling characteristics, then the model will typically exhibit instabilities. As you have noted the addition of a lateral spring (tire lateral stiffness) will help the model but the net effect on handling is nil. The only fix I have seen is one of raw horsepower. The iteration rate for the ground handling calculations (and the subsequent integrations from the forces generated) must be cranked up. Fifteen hz feels like shit, thirty feels like firm shit and sixty starts to feel barely tolerable. There are some nifty filters and enhancers (extremely non-linear) that can be devised to make it "feel" slightly better but you will have to leave simulating the real world behind, cuz by that time it's pure make believe. Once the iteration rate is sufficiently high, the flexibility available in tuning the gains without causing instabilities should at least improve things for you. Please feel fre to Email me if you wish to discuss this further. CHEERS ------------------------------ Newsgroups: sci.engr,comp.edu,comp.simulation Path: engvms!eerdvak From: eerdvak@engvms.unl.edu Subject: Call for Papers: International Conf. on Simulation in Eng. Edu. Sender: news@unlinfo.unl.edu Nntp-Posting-Host: engvms.unl.edu Organization: University of Nebraska - Lincoln Date: 25 Jun 91 15:55:22 GMT Apparently-To: comp-simulation@uunet.uu.net CALL FOR PAPERS 1992 International Conference on Simulation in Engineering Education Sponsored by SCSI, (ASEE and IEEE sponsorships are pending) January 20-22, 1992 (part of the 1992 Western Multiconference) Newport Beach, California The conference provides a forum for the exchange of ideas and experience between educators in all the engineering disciplines. With this idea in mind, papers should be planned so as to emphasize the impact of the simulation approach, the advantages gained and the problems addressed. The aim should be to encourage and assist other educators, not necessarily from the same engineering discipline, to exploit the benefits of using simulation in their own programs. Papers which concentrate on the technical details of a particular application used in an educational context are also acceptable. Suggestion for panel discussions and workshops are encouraged. Topics of interest include, but are not limited to: . Simulation Languages and packages in engineering education . Techniques and systems used in teaching simulation . Relationship of software packages and engineering education . Case studies applying simulation techniques for engineering education . Graphics and animation for engineering simulation . Real time simulation techniques for engineers . Simulation methodologies for educating the engineers . Object oriented programming languages used in engineering education . Modeling and simulation research to advance engineering education . Simulation-based curricula for engineering education Schedule: August 26, 1991: Deadline for program chair to receive four (4) copies of the full papers September 30, 1991: Notification of acceptance October 15, 1991: Deadline for camera ready copy All submissions will be reviewed. They must contain original contribution that has not been previously reported in the literature. In addition to regular papers about 18 pages (double-spaced), the program committee may accept additional papers either as short papers (about 8 pages double-spaced) or for inclusion in a poster session. Poster abstracts will appear in the proceedings. Papers judged to be especially high in quality will be submited for consideration by the Journal/Transactions of the Society for Computer Simulation International. Submission with a cover letter stating the name, address (postal and electronic), and phone number of each author should be sent to Hamid Vakilzadian, Program Chairman. Hamid Vakilzadian, Program Chairman Roy Crosbie, General Chairman Department of Electrical Engineering Department of Computer Engineering University of Nebraska-Lincoln California State University, Chico Lincoln, NE 68588-0511 Chico, CA 95929-0003 eerdvak@engvms.unl.edu crosbie@calstate.bitnet Voice: (402) 472-1977 Voice: (916) 898-4489/4654 Fax: (402) 472-4732 Fax: (916) 898-5995 Program Committee Rassul Ayani, Royal Inst. of Tech., Sweden Osman Balci, VPI, USA John Ballard, U. of Nebraska, USA Kallol Bagchi, Aalborg U., Denmark Peter Breedveld, Tech. U. of Twente, Netherlands William L. Brogan, U. of Nevada, Las Vegas, USA Francois E. Cellier, U. of Arizona, USA H. Jurgen Halin, ETH-Swiss Inst. of Tech, Switzerland Alfred Jones, Florida Atlantic Univ., USA Walter Karplus, UCLA, USA Charles E. Knadler, IBM (Associate Program Chair), USA Granino A. Korn, U. of Arizona , USA George K. Lea, National Science Foundation, USA Raymond F. Mignona, New York Inst. of Tech., USA Zain Navabi, Northeastern Univ., USA Don. J. Nelson U. of Nebraska, USA Tuncer Oren, Univ. of Ottawa, Canada Alain Senteni, U. of Monteral, Canada Micheal Singh, Cal. State Long Beach Rodney, J. Soukup, U. of Nebraska, USA Ghislain Vansteenkiste, Univ. of Ghent, Belgium George W. Zobrist, U. of Missouri, USA ------------------------------ Date: Wed, 26 Jun 91 10:14:27 EDT From: Richard E. Nance - SRC <srcnance@popeye.src.vt.edu> To: simulation@bikini.cis.ufl.edu Subject: Inquiry on Simulation Model Development by Gupta Cc: balci@vtopus.cs.vt.edu I suggest that Rohit might look at the work of the CASM group at LSEPS and our work (Balci and Nance), both of which are described in the WSC90 Proceedings as well as in other works. Dick Nance ------------------------------ Return-Path: <rkufrin@ncsa.uiuc.edu> Date: Wed, 26 Jun 91 11:21:10 CDT From: rkufrin@ncsa.uiuc.edu (Rick Kufrin) Newsgroups: comp.parallel,comp.ai.neural-nets,comp.simulation Subject: CM Application Workshop at NCSA 10/28/91 Summary: Followup-To: Distribution: world Organization: Nat'l Ctr for Supercomp App (NCSA) @ University of Illinois Keywords: Apparently-To: simulation@bikini.cis.ufl.edu The Connection Machine Application Workshop October 28-November 1, 1991 The Connection Machine Application Workshop will examine three applications domains: computational fluid dynamics, artificial neural nets, and molecular dynamics. Its purpose is to help participants gain a greater understanding for using the Connection Machine. The Connection Machine Application Workshop is designed along two tracks: % applications and algorithms % performance programming techniques At this one-week workshop, researchers will learn methods to improve their performance on the Connection Machine and attend presentations by scientists and researchers about the development of algorithms and moving applications to the Connection Machine. Participants will be encouraged to contribute codes to NCSA's Connection Machine code library for further distribution and enhancements. The Connection Machine Application Workshop will take place October 28-November 1, 1991 at the National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign. Travel, lodging, some meals, and workshop expenses may be provided. The workshop is intended for key members of research groups that are developing codes for the Connection Machine. Participants must have programming experience with the Connection Machine. ===================== To apply for the workshop, a proposal must be received by July 31, 1991. Include a self-addressed stamped postcard if you would like an acknowledgement that your proposal has been received. Late proposals will not be considered. Enrollment is limited to 20 participants. Notification of acceptance will be mailed on Thursday, August 15, 1991. Your proposal must include the following: 1. Your name, affiliation, mailing address, email address, telephone number, and fax number. Please indicate if financial support is needed for participation in the workshop. 2. Describe your current position. 3. Describe your field of research. In an abstract of about 100 words, give information about the problems you address and the methodology you use. If possible, provide a measure of performance for the application or kernel. 4. Describe the stage of development of this project (design, prototyping, implementation), whether or not a user interface or documentation exists, and the programming languages and support libraries you use. 5. Describe the availability of the application or algorithm to the national computational community. 6. List articles, technical reports, conference papers, or any other published material concerning the development of the application. If possible, include reprints or copies of the above articles with your proposal. 7. Indicate the CM site where the development took place; include the minimum hardware requirements (number of processors, memory, floating point, DataVault, and framebuffer). 8. Send proposals to: Michael Welge National Center for Supercomputing Applications 4147 Beckman Institute 405 North Mathews Avenue Urbana, IL 61801 Phone: (217) 244-1999 ------------------------------ END OF SIMULATION DIGEST ************************