FEM and BEM were used to analyse the dynamic response of the BIP and acousticcavity.
使用有限元和边界元法分析了白车身结构和声腔的动态响应特性。
2
The acousticcavity in-between the inner and outer layer is locally enlarged to fit the buildings infrastructure and additional program.
介于内外层之间的回音壁通过局部扩大设计，以适应项目基础设施和其他部分建筑结构与功能。
3
The acoustic modal analysis of cavity is the important matter on vehicle NVH performance study. Identifying system mode is of importance to avoid acoustic resonance and reduce interior noise.