论文信息 - A Self-Tuning Piezoelectric Vibration Absorber

A Self-Tuning Piezoelectric Vibration Absorber

A self-tuning piezoelectric vibration absorber is presented. A piezoelectric absorber, similar to a mechanical vibration absorber, has to be tuned to a particular structural vibration mode in order to be effective. The absorber presented here will tune itself to a particular mode and track that mode if it varies in frequency. Design of the aborber consists of a pair of lead zirconate titanate (PZT) tiles attached to the structure and shunted by an inductor-resistor circuit. This produces an electrical resonance that can be tuned to the desired structural mode by a simple control system. The absorber is experimentally demonstrated on a cantilevered beam. The experiments include an ex amination of the response of the absorber to an abrupt change in system parameters.

Joseph J. Hollkamp | Thomas Starchville

[1] Nesbitt W. Hagood,et al. Damping of structural vibrations with piezoelectric materials and passive electrical networks , 1991 .

[2] Stephen P. Timoshenko,et al. Vibration problems in engineering , 1928 .

[3] E. Crawley,et al. Use of piezoelectric actuators as elements of intelligent structures , 1987 .

[4] Robert L. Forward,et al. Electronic damping of vibrations in optical structures. , 1979, Applied optics.

[5] J. Hanson,et al. Passive and active filters , 1987, Proceedings of the IEEE.

[6] Jer-Nan Juang. Optimal design of a passive vibration absorber for a truss beam , 1983 .

[7] J. Hollkamp. Multimodal Passive Vibration Suppression with Piezoelectric Materials and Resonant Shunts , 1994 .

[8] Jer-Nan Juang,et al. An eigensystem realization algorithm for modal parameter identification and model reduction. [control systems design for large space structures] , 1985 .

[9] Jer-Nan Juang. Optimal Design of a Passive Vibration Absorber for a Truss Beam , 1984 .

[10] Stephen P. Timoshenko,et al. Vibration Problems in Engineering - fourth edition , 1974 .

[11] Nesbitt W. Hagood,et al. Experimental investigation into passive damping enhancement for space structures , 1991 .

[12] Ephrahim Garcia,et al. A Self-Sensing Piezoelectric Actuator for Collocated Control , 1992 .