한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2006년도 춘계학술대회논문집
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- Pages.837-843
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- 2006
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- 1598-2548(pISSN)
시간지연 제어기법을 이용한 공압 제진대의 저주파 영역에서의 진동 절연 성능 향상
Performance Enhancement of Pneumatic Vibration Isolator in Low Frequency by Time Delay Control
- 발행 : 2006.05.01
초록
As environmental vibration requirements on precision equipment become more stringent, use of pneumatic isolators has become more popular and their performance is subsequently required to be further improved. Performance of passive pneumatic isolators is related to various design parameters in a complicated manner and, hence, is very limited especially in low frequency range by chamber volume. In this study, transmissibility behavior of the pneumatic isolators depending on frequency and dynamic amplitude are presented. Then, an active control technique, time delay control, which is adequate for a low frequency nonlinear system, is applied. A procedure of applying the time delay control law to a pneumatic isolator is presented and it's effectiveness in the transmissibility performance is shown. Comparison between passive and active pneumatic isolators is made based on simulation.
키워드