Hybrid damage-mitigating control of mechanical structures

Author

Zhang, Hui ; Ray, Asok ; Phoha, Shashi

Author_Institution

Dept. of Mech. Eng., Pennsylvania State Univ., University Park, PA, USA

Volume

1

fYear

1998

fDate

21-26 Jun 1998

Firstpage

254

Abstract

The goal of damage mitigating control is to achieve a desired level of trade-off between structural durability of critical component(s) and dynamic performance of complex systems (e.g., aircraft, spacecraft, and energy conversion systems). This paper presents the architecture and design concept of a hybrid (i.e., combined discrete-event and continuously-varying) damage-mitigating control system for life extension and high performance of mechanical structures. It focuses on the application perspectives of supervisory control in the discrete-event setting. Based on a closed loop linear control system at the lower tier, a variable-structure stochastic automaton is employed for damage regulation, where stability and performance of the hybrid system is maintained by the supervisory level discrete-event controller

Keywords

H^∞ control; closed loop systems; discrete event systems; hierarchical systems; large-scale systems; linear systems; robust control; stochastic systems; variable structure systems; closed loop linear control system; complex systems; critical component; dynamic performance; high performance; hybrid damage-mitigating control; life extension; mechanical structures; structural durability; supervisory level discrete-event controller; variable-structure stochastic automaton; Aerospace control; Aircraft; Automata; Automatic control; Control systems; Energy conversion; Mechanical variables control; Space vehicles; Stochastic systems; Supervisory control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1998. Proceedings of the 1998

Conference_Location

Philadelphia, PA

ISSN

0743-1619

Print_ISBN

0-7803-4530-4

Type

conf

DOI

10.1109/ACC.1998.694670

Filename

694670