Inertial piezoceramic actuators for smart structures

Craig Asckler; George Andre Lesieutre; Gary H. Koopmann; Christopher L. Davis

doi:10.1117/12.209333

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12 May 1995 Inertial piezoceramic actuators for smart structures

Craig Asckler, George Andre Lesieutre, Gary H. Koopmann, Christopher L. Davis

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Proceedings Volume 2447, Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies; (1995) https://doi.org/10.1117/12.209333
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

An inertial actuator, also known as a proof mass actuator (PMA), applies structural forces by reacting against an inertial mass. This paper introduces a class of recently developed piezoceramic PMA and its application to reduce vibration and structure-borne noise. The design incorporates displacement amplification to efficiently achieve low resonant frequency. A method is presented for assessing the efficiency of a piezoceramic PMA and comparing the power density of competing PMA technologies (ie, voice-coil vs. piezoceramic vs. magnetostrictive). The performance of the PMA is demonstrated by measuring the force generated against an infinite impedance and measurements on a structure representative of a turbo-prop fuselage. The experimental testing demonstrates the validity of a simple vibration absorber model in understanding PMA performance on complex structures.

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Craig Asckler, George Andre Lesieutre, Gary H. Koopmann, and Christopher L. Davis "Inertial piezoceramic actuators for smart structures", Proc. SPIE 2447, Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies, (12 May 1995); https://doi.org/10.1117/12.209333

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