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TECHNICAL PAPERS

Fuzzy Damage Mitigating Control of Mechanical Structures

[+] Author and Article Information
M. S. Holmes, Asok Ray

Mechanical Engineering Department, The Pennsylvania State University, University Park, PA 16802

J. Dyn. Sys., Meas., Control 120(2), 249-256 (Jun 01, 1998) (8 pages) doi:10.1115/1.2802416 History: Received March 12, 1997; Online December 03, 2007

Abstract

This paper presents the architecture and synthesis of a damage mitigating control system for mechanical structures where the objective is to achieve high performance with increased reliability, availability, component durability, and maintainability. The proposed control system has a two-tier structure. In the lower tier a linear sampled-data controller tracks a reference trajectory vector while the upper tier contains a fuzzy-logic-based damage controller which makes a trade-off between system performance and the damage in critical components. The synthesis procedure is demonstrated by simulation experiments on the model of a reusable rocket engine. The simulation results explore the feasibility of automatically regulating the damage/performance trade-off in a real-time setting.

Copyright © 1998 by The American Society of Mechanical Engineers
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