Numerical Computation of Acoustic Field Using Boundary Mesh less Method

摘要：

　　The common requests of the meshless interpolating functions are researched,and its construction method and procedures using the moving least squares method are introduced.The point collocation method is adopted to discretize the Kirchhoff-Helmholtz boundary integral equations into equation groups that constrained by boundary conditions.Constrained equation groups are solved by matrix-division method finally.Therefore,the discrete numeric expression of acoustic radiating and transferring model is obtained.In the example,acoustic field is calculated by the acoustic radiating and transferring model that obtained through both BMLM and BEM,and the results are contrasted between the computational values and the true values.It shows that the interpolating functions of BMLM could be built more flexible.So the accuracy of interpolation and calculation by BMLM is higher.

关键词： Computational acoustic field Acoustic radiating and transferring model Boundary mesh less method Interpolating function weighted residual

作者: Hai Hu Xin-yue Wu Long Ma

作者单位: Mechanical Engineering Department,Naval University of Engineering,Wuhan,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Manufacturing Engineering and Automation (2012年制造工程与自动化国际会议(ICMEA2012))

会议地点: 广州

会议语种:英文

页码: 1942-1948

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）