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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2014, Vol. 35 ›› Issue (1): 171-178.doi: 10.7527/S1000-6893.2013.0379

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles     Next Articles

Experimental Investigation on Active Vibration Control of Elastic Beam by Using Piezoelectric Stack Actuator

SONG Laishou, XIA Pinqi   

  1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2012-11-10 Revised:2013-09-02 Online:2014-01-25 Published:2013-09-17
  • Supported by:

    The Science and Technology Foundation of State Key Laboratory of Rotorcraft Aeromechanics (NBA10004)

Abstract:

The inertial actuator is often used in the active control system of structural response. Due to its shortcomings such as heavy weight, narrow band of working frequency and slow response speed, it hampers the performance of the control system. The piezoelectric actuator has the advantages of lighter weight, wider band of working frequency and faster response speed and can effectively improve the performance of the control system as an efficient actuator. In this paper, an experimental investigation on the active vibration control of a free-free elastic beam structure is conducted by using a piezoelectric stack actuator, taking the acceleration response at the observed point as the control objective and using the harmonic steady control strategy in the frequency domain. The experimental results demonstrate that the active vibration control system established in this paper can effectively control the vibration level of an elastic beam structure and has the adaptive control ability to fast track changes of external excitation.

Key words: elastic beam, piezoelectric stack actuator, harmonic vibration, adaptive vibration control, experimental investigation

CLC Number: