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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Uncertainties and Control of a 3-DOF Active Vibration Isolation System

3자유도 능동형 제진 시스템의 불확실성과 제어

  • 김화수 (서울대학교 기계항공공학부 BK21사업단) ;
  • 박희재 (서울대학교 기계항공공학부) ;
  • 조영만 (서울대학교 기계항공공학부) ;
  • 문준희 (서울대학교 마이크로열시스템연구센터)
  • Published : 2006.12.20
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Abstract

Using the physics-based model for the vibration isolation system, the model uncertainties are described. With the model including parameter perturbations, the robust controller to meet the robust performance and stability is designed through $\mu$-synthesis by DK-iteration. The order of controller is reduced by virtue of Hankel norm approximation technique to allow the efficient implementation in the real-time experimental environment without any performance degradation. The performance of the reduced $\mu$-controller is accessed in comparison with the original one. The experiments validate the superiority of the proposed control scheme against the model uncertainties and its applicability with varying payload.

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References

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