대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제19권1호
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- Pages.284-291
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- 1995
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- 1225-5963(pISSN)
DOI QR Code
랜덤진동제어에서 치구성능향상을 위한 기준스펙트럼의 최적화에 대한 연구
A study on Optimization of Reference Spectrum for Improvement of Fixture Performance in Random Vibration Control
초록
This paper proposes a method for determination of optimal reference spectrum in random vibration control. The least square method is used to minimize the spectrum deviation between the specified reference spectrum and spectra at the specimen-mounted points. This method needs only the measured FRF's at the control point and specimen-mounted points in pre-vibration test. Using the proposed method as reference spectrum, it is possible to easily predict spectra at the specimen-mounted points, and also to reduce overtest resulting from dynamic characteristics of shaker and fixture. This method is shown through theoretical and experimental results to be an effective method.
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