Active Vibration Control of Multi-Mode Forced Vibration Using PPF Control Technique

PPF 제어기법을 이용한 다중 모드 강제 진동의 능동 진동 제어

  • 한상보 (경남대학교 공과대학 기계공학부) ;
  • 곽문규 (건국대학교 공과대학 항공우주공학과) ;
  • 윤신일 (건국대학교 공과대학 항공우주공학과)
  • Published : 1997.12.01

Abstract

This paper presents active vibration control scheme of multi-mode forced vibration using piezocetamic sensors and actuators. The control scheme adopted is the Positive Position Feedback (PPF) control. Among various vibration control techniques. PPF control technique makes use of generalized displacement measurements to accomplish the vibration suppression. Two independent controllers are implemented to control the first and the second modes of the beam under external excitation. Experimental results for various damping ratios and feedback gains of the PPF controllers are compared with respect to the contorl efficiency. The results indicate that steady state vibration under wide band excitation can be controlled effectively when multiple sets of PZT sensors and actuators were used with PPF control technique.

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