MASSIVELY PARALLEL COMPUTER BASED, ANALYTICAL PREDICTIVE TECHNIQUES FOR CONTROL/STRUCTURE INTERACTION ANALYSIS

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$50,000.00
Award Year:
1991
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
15669
Agency Tracking Number:
15669
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
10455 White Granite Drive, Oakton, VA, 22124
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Rong C Shieh
Principal Investigator
(703) 385-0792
Business Contact:
() -
Research Institution:
n/a
Abstract
THE PURPOSE OF THIS RESEARCH PROJECT IS TO IDENTIFY AND/OR FORMULATE EFFICIENT METHODS AND ASSOCIATED COMPUTATIONAL ALGORITHMS FOR PREDICTING THE DYNAMIC PERFORMANCE AND STABILITY CHARACTERISTICS OF CONTROL AUGMENTED, DAMPING ENHANCED, LARGE SPACE STRUCTURES IN A MASSIVE DATA PARALLEL ENVIRONMENT. IT IS ASSUMED THAT THE STRUCTURES ARE TO ACT IN CONCERT WITH ON-BOARD DISTRIBUTED CONTROLLERS AS WELL AS DISCRETE CONTROLLERS FOR MANEUVERING, POINTING, AND VIBRATION OR NOISE SUPPRESSION. THE DISPLACEMENT FINITE ELEMENT METHODS WILL BE USED IN DEVELOPING PIEZOELECTRICALLY CONTROLLED BEAM AND TRUSS FINITE ELEMENT MODELS AND FORMULATING THE DISCRETIZED EQUATIONS OF MOTION THAT GOVERN THE STABILITY AND DYNAMIC RESPONSES OF THE COUPLED CONTROL/STRUCTURES STSTEM. BOTH "DIRECT" AND "MODAL" SOLUTION TECHNIQUES WILL BE USED IN SOLVING THE NONPROPORTIONALLY DAMPED, NONCONSERVATIVELY LOADED STABILITY AND DYNAMIC RESPONSE PROBLEMS. IN PHASE I, EFFICIENT ANALYSIS METHODS AND SOLUTION ALGORITHMS WILL BE IDENTIFIED AND/OR FORMULATED AND A SELECTED SUBSET OF THESE ALGORITHMS IMPLEMENTED IN THE MASSIVELY PARALLEL CONNECTION MACHINE CM-2 MODEL COMPUTER. FULL IMPLEMENATIONA OF A SET OF PROMISING ALGORITHMS ON CM-2 COMPUTER WILL BE GIVEN IN PHASE II.

* information listed above is at the time of submission.

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