Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 1996.10a
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- Pages.260-265
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- 1996
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- 1598-2548(pISSN)
Active Vibration Control of Fixed-Fixed Beam Using Piezoelectric Sensor and Actuator
압전 감지기와 작동기를 이용한 양단 고정보의 능동 진동 제어
Abstract
Active control of forced vibration response of a fixed-fixed beam implementing PZT sensor/actuator was conducted. Among various control scheme, PPF control was chosen due to its amenability and natural robustness. For a single frequency excitation, the PPF control provided reasonable controllability with the appropriate damping ratio of the compensator. Without increasing actuator voltage, best controllability can be obtained by the exact tuning between the natural frequency of the structure and the cut-off frequency of the compensator. Even the multi-frequency excitation, the PPF provided good vibration suppression for corresponding mode of interest, even though residual modes should be controlled with independent compensators for each mode.
Keywords