한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2008년도 추계학술대회논문집
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- Pages.736-742
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- 2008
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- 1598-2548(pISSN)
Integrated Structural and PD-Control Optimization of Flexible Rotor Supported by Active Magnetic Bearings
- Jeon, Han-Wook (KAIST) ;
- Lee, Chong-Won (KAIST) ;
- Watanabe, Toru (Nihon University)
- 발행 : 2008.11.20
초록
This paper proposes new searching algorithm for the optimal PD gains of flexible rotor supported by active magnetic bearings. Under the assumption of linearized bearing parameters with respect to PD gains, the performance index in quadratic form is defined and steepest descent method is adopted for determining local minimum. Moreover, the eigenpair sensitivity concept is utilized to evaluate the sensitivity of performance index. To evaluate the effectiveness of suggested algorithm, the finite element model is constructed and its reduced model is retained in modal domain. Given starting gains, the optimal gains are successfully found and the control performance is demonstrated by simulation to show the efficiency of the proposed method.