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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Modeling and Vibration Control of the Miniature Universal Testing Machine

소형 재료시험기의 모델링 및 진동 제어

  • 복진 (금오공과대학교 대학원 기전공학과) ;
  • 김영식 (금오공과대학교 기계공학부) ;
  • 권현규 (금오공과대학교 기계공학부) ;
  • 김인수 (금오공과대학교 기계공학부) ;
  • 최성대 (금오공과대학교 기계공학부)
  • Published : 2005.03.01
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Abstract

This paper proposes the modeling scheme of the Miniature Universal Testing Machine (MUTM) composed of 36 thin-beam-type bimorph PZTs and the control algorithm to minimize the residual vibration of the MUTM in the dynamic testing of specimens. In the operation of the MUTM, hysteresis, residual displacement and vibration of it are major issues. From the analysis of the MUTM behaviors, the hysteresis is described by the curving fitting scheme with the function of an input voltage. The dynamic characteristics of the MUTM are identified by the frequency domain modeling technique based on the experimental data. The interested bandwidth is focused on 125-315HZ for effective modeling and control. For the robust vibration control of the MUTM, the sliding mode control and the Kalman filter as observer are proposed. The paper also proposes the best input signal type to operate the MUTM effectively. The feasibility of the proposed modeling scheme and control algorithm are tested and verified experimentally.

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References

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