한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2009년도 춘계학술대회 논문집 특별세미나,특별/일반세션
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- Pages.209-214
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- 2009
고속철도 차량의 외부소음 예측 및 저감 연구 : 광음향기법 응용
HST exterior noise : prediction and reduction scheme by using ray tracing technique
- 발행 : 2009.05.21
초록
In this research, an external noise distribution of a HST has been analyzed by using a ray tracing techniques. An aero-dynamic noise generated from a bogie has been considered as a major noise source. Then a distribution of the noise on the outside of the vehicle is calculated using a ray noise technique. The models simulated are two different acoustic fields: an open field and a tunnel. In order to evaluate the noise effects, an exterior structure has been modified by using a different length of skirts. Various application schemes of reducing an environmental noise level will be expected for a HST based on this research.
키워드