Accession Number : ADA320016

Title :   Control Design for Evolutionary Structural Systems.

Descriptive Note : Final rept. 1 Sep 92-31 Aug 93,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF AEROSPACE ENGINEERING

Personal Author(s) : Kurdila, Andrew J. ; Strganac, Thomas

PDF Url : ADA320016

Report Date : MAR 1994

Pagination or Media Count : 59

Abstract : This report summarizes the result of a one year effort. During this period, we have: (1) extended the infinite dimensional, game theoretical control strategy to account for structured uncertainty arising in (A) the control influence operator associated with piezoceramic actuators, and (B) constitutive law evolution, and (2) performed a coupled fluid/structure/control analysis that synthesizes the distributed control approach derived in (1) with a flutter induced phenomenological, microcrack model for a panel. The work has also enabled the research team to: (1) develop an experimental wind-tunnel facility designed expressed for the study of the onset of flutter, nonlinear aeroelasticity and verification of the control theories (derived in this research), and (2) derive multiresolution-based analysis methods for the investigation of the onset of flutter in the experimental facilities.

Descriptors :   *STRUCTURAL ANALYSIS, *AEROELASTICITY, LOAD DISTRIBUTION, AERODYNAMIC STABILITY, DYNAMIC RESPONSE, COMPUTATIONAL FLUID DYNAMICS, NONLINEAR SYSTEMS, STRUCTURAL RESPONSE, BOUNDARY VALUE PROBLEMS, AERODYNAMIC LOADING, CONTROL THEORY, GAME THEORY, FLUTTER, MICROCRACKING.

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE