吉林大学学报(工学版) ›› 2001, Vol. ›› Issue (1): 91-94.

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Noise Control with Active Piezoelectric-Damping Composites

ZHOU Jie-min, GONG Shu-li, TAO Yun-gang, LIN Gang   

  1. College of Civil Aviation, Nanjing University of Aeronautics & Astronautics, Nanjing 210016
  • Received:2000-10-30 Online:2001-01-25

Abstract: In view of the significant variation of damping material properties with temperature and frequency,it is difficult to achieve optimum performance when the damping materials to control noise are used.And the effectiveness of this treatment is limited to a narrow range.In this paper,the authors describe a new treatment which is a hybrid between active and passive damping.The research describes the feasibility of this treatment with the example of controlling the sound radiation from a plate into an three dimensional acoustic cavity.

Key words: active piezoelectric damping composites (APDC), microphone, plate, three dimensional acoustic cavity, FEM model

CLC Number: 

  • TP273.2
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