Design of in-situ vibration and shape controller on smart structures

S. M. Yang, Y. C. Liu, K. C. Liu

Research output: Contribution to journalArticlepeer-review


The stringent design requirement of aerospace systems has called for the need of smart structures-systems with built-in sensor and actuator that can actively change their physical geometry and property to adapt to operating condition. This paper presents a smart structure design with built-in piezoelectric sensor/actuator and controller for dither excitation, vibration suppression, and shape control. Two smart structure specimens, an aluminum beam with surface bonded piezoelectric sensor/actuator and a glass fiber composite laminated beam with embedded piezoelectric sensor/actuator, are fabricated and tested. A controller driven by one 9VDC battery is developed as power supply, wave-form synthesizer, and power amplifier. It is shown experimentally that the smart structure of integrated sensor, actuator, and controller is effective to vibration control and shape control.

Original languageEnglish
Pages (from-to)125-130
Number of pages6
JournalHangkong Taikong ji Minhang Xuekan/Journal of Aeronautics, Astronautics and Aviation
Volume38 A
Issue number2
Publication statusPublished - 2006 Jun

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


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