A prediction of the acoustic field of a vibrating box by FEM-BEM

查看全文 作　　者：YU Xingzhuo;FANG Xing and ZHOU Yu (Department of Mechanical Engtheering I. Huazhong University of Science and Technology. Wuhan 430074) 出　　处：《Chinese Journal of Acoustics》索引1995年第14卷第1期,共5页 摘　　要：A method based on Holmholtz equation is presented to predict thc acoustic radiation of a vibrating box by combining the finite clement method (FEM) with boundary element method (BEM). The prediction formulation is valid for all frequencies if an extra equation is added. The acoustic field of a vibrating box has been calculated and measured. The effectiveness of the method has been proved by test results. 关 键 词：Acoustic radiation Noise PREDICTION INTEGRAL equation Finite ELEMENT METHOD BOUNDARY ELEMENT METHOD