Date of Award

Summer 1982

Document Type

Thesis

Department

Mechanical & Aerospace Engineering

Program/Concentration

Engineering Mechanics

Committee Director

A. Sidney Roberts, Jr.

Committee Member

Raymond C. Montgomery

Committee Member

Earl A. Thornton

Committee Member

Ping Tcheng

Call Number for Print

Special Collections; LD4331.E57A38

Abstract

An approach is developed for non-catastrophic control component failure accommodation for large space structures. Reliability is considered for both the control configuration (i.e., selecting actuator locations over an admissible set) and the ultimate operation of the system. The approach presented is to construct a measure of performance that indicates the absolute goal of the system, and for a given structural design, to determine the lowest achievable cost conditional upon the failure states of the system (i.e., which actuators are operational). These costs are then weighted and summed to provide an overall system performance measure. This expected performance measure is then minimized over the set of admissible control configurations. A complete mathematical development is presented for a flexible beam and a grid structure. The optimal configurations for the failure states are determined for different normalized time of mission. Although the research is concerned with a particular problem, the analysis of the reliability incorporation in the design of control systems is of more general interest.

Rights

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

DOI

10.25776/qhte-rt79

Download

Share

COinS