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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1997, Vol. 18 ›› Issue (1): 100-103.

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STUDIES ON THE TECHNOLOGY OF ACTIVE VIBRATION CONTROL BY USING PIEZOELECTRIC ACTUATORS

Mei Shengmin1, Tao Baoqi1, Qin Taiyan2   

  1. 1. Faculty 505,Nanjing University of Aeronautics & Astronautics, Nanjing, 210016;2. Beijing Agricultural Engineering University , Beijing, 100083
  • Received:1995-11-29 Revised:1996-04-17 Online:1997-02-25 Published:1997-02-25

Abstract:

Theoretical and experimental analyses are given on the mechanism of utilizing piezoelectric actuators in controlling vibration of a flexible structure. Based on the law of conservation of energy, the relationship between feedback gain and damping ratio of the beam actuators system is obtained. An experiment system is established to verify the relationship described above, which shows that the damping of the beam can be effectively increased by means of choosing a suitable piezoelectric material and suitable locations of sensors and actuators.

Key words: piezoelectric ceramic, actuators damping, vibration, active control

CLC Number: