Interior Noise Level for Railway . Boundary Element Method and Ray Acoustic Method

철도차량의 소음도 예측 : 경계요소법과 광음향기법의 상호보완

Typical analytical tools in noise level estimation are using BEM and Ray Acoustics for acoustic field.0 this paper, application of both approaches have been examined for the prediction on the exterior surface of railway vehicles. Advantages and disadvantages of the tool have been also evaluated. The result shows that sound understanding of the analytical tools for noise evaluation is necessary.