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

Sekhar Tangirala, Asok Ray, Marc Carpino

Research output: Contribution to journalConference article

2 Citations (Scopus)

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 reported in recent publications show 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.

Original languageEnglish (US)
Pages (from-to)4106-4110
Number of pages5
JournalProceedings of the American Control Conference
Volume6
StatePublished - Jan 1 1995
EventProceedings of the 1995 American Control Conference. Part 1 (of 6) - Seattle, WA, USA
Duration: Jun 21 1995Jun 23 1995

Fingerprint

Rocket engines
Testbeds
Mechanics
Durability
Fatigue of materials
Control systems
Degradation

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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Damage-mitigating control of mechanical structures : experimental verification of the concept. / Tangirala, Sekhar; Ray, Asok; Carpino, Marc.

In: Proceedings of the American Control Conference, Vol. 6, 01.01.1995, p. 4106-4110.

Research output: Contribution to journalConference article

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