NDLI: Damage-mitigating control of mechanical structures: experimental verification of the concept

Content Provider	IEEE Xplore Digital Library
Author	Tangirala, S. Ray, A. Carpino, M.
Copyright Year	1995
Description	Author affiliation: Pennsylvania State Univ., University Park, PA, USA (Tangirala, S.; Ray, A.; Carpino, M.)
Abstract	The concept of damage-mitigating control is built upon the two disciplines of control systems and mechanics of materials, and its goal is to achieve optimized trade-off between the system performance and structural durability of the plant under control. Simulation studies have shown a substantial reduction in the damage accumulation in the critical components of a rocket engine with no significant loss of performance. This paper reports experimental verification of the damage-mitigating control concept on a laboratory testbed which is a two-degree-of-freedom mechanical system excited by a computer-controlled shaker table. Test results demonstrate: (i) the important feature of optimized damage-mitigating control by extending fatigue life up to three and one half times with no significant performance degradation; and (ii) close agreement between the analytical prediction of damage and experimental observations.
Starting Page	4106
Ending Page	4110
File Size	612193
Page Count	5
File Format	PDF
ISBN	0780324455
DOI	10.1109/ACC.1995.532704
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-06-21
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Control systems Aerospace materials System performance Computational modeling Rockets Engines Performance loss Laboratories System testing Mechanical systems
Content Type	Text
Resource Type	Article

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