한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제13권8호
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  • Pages.612-618
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  • 2003
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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전기점성유체와 압전세라믹을 이용한 복합지능구조물의 진동제어

Vibration Control of Hybrid Smart Structure Using ER Fluids and Piezoelectric Ceramics

  • 윤신일 (경남대학교 대학원 기계설계학과) ;
  • 박근효 (경남대학교 대학원 기계설계학과) ;
  • 한상보 (경남대학교 기계자동화공학부)
  • 발행 : 2003.08.01
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초록

A hybrid vibration control scheme using ER fluid and PZT patches is proposed. Dynamic characteristics of the beam embedded with the ER fluid can be controled by changing the strength of the electric field applied on the ER fluid, thus provides a mean to avoid the resonance. It was found that active vibration control of the structure embedded with ER fluid failed to suppress the vibration excited with broad band frequency due to the limited change of the dynamic characteristics of the structure. To compensate this limited effect of the control scheme with ER fluid alone, PPF control using PZT patches as sensors and actuators is added to construct a hybrid controller. Experimental results suggests that proposed hybrid controller is effective to suppress the additional resonance vibration that appears when each controller is used alone.

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참고문헌

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