한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2007년도 추계학술대회 논문집
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- Pages.258-264
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- 2007
SEA 기법을 이용한 부유상구조의 구조기인 소음 예측
Prediction of Structure-Borne Noise for Floating Floor Using SEA
초록
Floating floors, which are mainly used for reducing interior noise levels of railway vehicle, are known to be superior to single structure in respect to sound transmission loss and vibration reduction performances. The stiffness of isolator is one of the important design variables in floating floors. From modal tests, modal properties of underframe, top floor and isolators are derived. They are used as input parameters for predicting structure-borne noise using AUTOSEA.
키워드