Inertial piezoceramic actuators for smart structures

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

doi:10.1117/12.209333

12 May 1995 Inertial piezoceramic actuators for smart structures

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

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.

Citation Download Citation

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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