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강인제어 기법과 입력성형법을 이용한 자벌레의 정밀 위치 제어
양광용(Yang, Kwang-Yong),황윤식(Hwang, Yun-Sik),김영식(Kim, Yeung-Shik),김인수(Kim, In-Soo) 한국소음진동공학회 2009 한국소음진동공학회 논문집 Vol.19 No.2
This paper presents motion control of the Inchworm composed of the piezoelectric actuators and mechanical elements. Piezoelectric actuator shows nonlinear response characteristics including hysteresis due to the ferroelectric characteristics. This paper proposes feedback control scheme to improve the ability of tracking response to complex input signal and suppress the phenomenon of hysteresis using the sliding mode control technique with the integrator. The sliding mode control system has the limit to minimize both the settle time and overshoot. For making up this limit, this paper also suggests input shaping technique suitable to the inchworm control system.