Experimental and analytical studies of a novel semi-active piezoelectric coulomb damper

Ozlem Durmaz; William W. Clark; David S. Bennett; Jeffrey S.N. Paine; Marc N. Samuelson

doi:10.1117/12.472661

27 June 2002 Experimental and analytical studies of a novel semi-active piezoelectric coulomb damper

Ozlem Durmaz, William W. Clark, David S. Bennett, Jeffrey S.N. Paine, Marc N. Samuelson

Proceedings Volume 4697, Smart Structures and Materials 2002: Damping and Isolation; (2002) https://doi.org/10.1117/12.472661
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

This paper presents an analytical and experimental study of a novel, patent pending, semi-active piezoelectric coulomb damper. A piezoelectric stack actuator is used to modulate the friction force of a passive coulomb damper resulting in high ranges of controllable friction forces. First, the piezoelectric coulomb damper is introduced and its method of operation is described. Experimental results are presented that reveal the static and dynamic frictional force behavior of the damper. An analytical model is developed and the results are compared with the experimental data. The force range of the piezoelectric coulomb damper was observed to be between approximately 890 N to 11 kN. It has a total stroke of +/- 13 mm and requires less than 0.5 W power. For a relatively small volume device, 10 cm x 6.3 cm x 6.3 cm, it is able to provide a large range of forces exceeding the capabilities of many other types of semi-active dampers.

Citation Download Citation

Ozlem Durmaz, William W. Clark, David S. Bennett, Jeffrey S.N. Paine, and Marc N. Samuelson "Experimental and analytical studies of a novel semi-active piezoelectric coulomb damper", Proc. SPIE 4697, Smart Structures and Materials 2002: Damping and Isolation, (27 June 2002); https://doi.org/10.1117/12.472661

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