Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Active Vibration Control of a Flexible Cantilever Beam Using SMA Actuators

SMA 작동기를 이용한 유연외팔보의 능동진동제어

  • Choi, S.B. ;
  • Cheong, C.C. ;
  • Hwang, I.S.
  • 최승복 (인하대학교 기계공학과) ;
  • 정재천 (인하대학교 기계공학과) ;
  • 황인수 (대우자동차 주식회사 기술연구소)
  • Published : 1995.09.01
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Abstract

This paper experimentally demonstrates the feasibility of using shape memory alloy(SMA) actuators in controlling structural vibrations of a flexible cantilevered beam. The dynamic characteristics of the SMA actuator are identified and integrated with the beam dynamics. Three types of control schemes; constant amplitude controller(CAC), proportional amplitude controller (PAC) and sliding mode controller(SMC) are designed. The CAC and PAC are determined on the basis of physical phenomenon of the SMA actuator, while teh SMC is formulated in a mathematical manner. The proposed controllers are implemented and evaluated at various operating condirions by investigating the control level of suppression in transient vibration.

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