한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2006년도 추계학술대회논문집
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- Pages.771-775
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- 2006
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- 1598-2548(pISSN)
중주파수 해석을 위한 웨이브 모형 연구: 두개의 보와 판 연성계
A wave model of two identical beams coupled by a plate for a mid-frequency analysis
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- 유지우 (현대자동차 선행개발센터)
- Thompson, D.J. (ISVR, Southampton University) ;
- Ferguson, N.S. (ISVR, Southampton University) ;
- Yoo, Ji-Woo
- 발행 : 2006.11.16
초록
There has been much effort to find suitable methods for structural analysis in the mid-frequency region where traditional low frequency methods have increasing uncertainties whilst statistical energy analysis is not strictly applicable. Systems consisting of relatively stiff beams coupled to flexible plates have a particularly broad mid-frequency region where the beams support only a few modes whilst the plate has a high modal density and modal overlap. A system of two parallel beams coupled to a plate is investigated based on the wave method, which is an approximate method. The wave model is extended from a single-beam-plate system, to a plate with two identical beams which is modelled using a symmetric-anti symmetric technique. Experimental results such as powers and energy ratios show the validity of the analytical wave models.