PROBABILISTIC STRUCTURAL MECHANICS RESEARCH FOR PARALLEL PROCESSING COMPUTERS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$49,967.00
Award Year:
1990
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
11912
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Applied Research Assocs Inc
6404 Falls Of Neuse Road Suite, Raleigh, NC, 27615
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Robert H. Sues
Principal Engineer
(919) 876-0018
Business Contact:
LAWRENCE A. TWISDALE
SENIOR VICE PRESIDENT
(919) 876-0018
Research Institution:
n/a
Abstract
THIS RESEARCH EFFORT WILL INVESTIGATE THE USE OF PARALLEL PROCESSING COMPUTERS TO SOLVE PROBLEMS IN PROBABILISTIC STRUCTURAL MECHANICS (PSM) THAT ARISE IN THE ASSESSMENT OF RELIABILITY OF COMPLEX AEROSPACE STRUCTURES. PSM PROBLEMS, SOLVED BY MONTE CARLO SIMULATION, ARE INHERENTLY PARALLEL AND ARE IDEALLY SUITED FOR SOLUTION ON PARALLEL COMPUTERS. RELATIVELY LITTLE RESEARCH, HOWEVER, HAS BEEN CONDUCTED IN PROBABILISTIC STRUCTURAL MECHANICS TO EXPLOIT THE POWER OF THESE MACHINES. WE WILL INVESTIGATE NEW AND INNOVATIVE APPROACHES FOR IMPLEMENTING MONTE CARLO METHODS ON A PARALLEL COMPUTER FOR THE SOLUTION OF PSM PROBLEMS. THE OBJECTIVES OF THE PHASE I EFFORT WILL FOCUS ON THE EVALUATION, IN A PARALLEL COMPUTER ARCHITECTURE, OF PROBABILISTIC MONTE CARLO IMPLEMENTATION STRATEGIES, INCLUDING PIPELINING (VECTORIZATION), CONCURRENCY (MULTITASKING), SYNCHRONIZATION, AND VARIANCE REDUCTION TECHNIQUES. WHILE MUCH OF THE RESEARCH IN PSM OVER THE LASTTWO DECADES HAS FOCUSED ON BASIC THEORY DEVELOPMENT, THE NEXT DECADE OF RESEARCH IN COMPUTATIONAL PSM MAY OPEN UP A WHOLE NEW CLASS OF FINITE ELEMENT AND DYNAMICS PROBLEMS TO PROBABILISTIC STRUCTURAL ANALYSIS.

* information listed above is at the time of submission.

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