한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2012년도 춘계학술대회 논문집
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- Pages.729-733
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- 2012
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- 1598-2548(pISSN)
알루미늄 압출판의 동적 거동 예측을 위한 해석적 연구
Study of dynamic behavior of aluminum extruded panels
- 발행 : 2012.04.26
초록
Frame structures of High speed train are constructed from corrugated panel and aluminum extruded panel, which have high bending stiffness. Transmission loss of those panels, however, is less satisfactory than other panels with same mass per unit area. Therefore, this study predicted transmission loss of aluminum extruded panels using Finite element method. Specifically, we modeled acoustic cavity above a radiation surface and analyzed correlation between T-slot and transmission loss. Moreover, we examined the effect of boundary condition changes of the structure on transmission.