| 基于间接Trefftz法的封闭声腔的结构-声耦合分析 |
| |
| 引用本文： | 李志江,曹平,李鹏. 基于间接Trefftz法的封闭声腔的结构-声耦合分析[J]. 武汉理工大学学报, 2011, 0(5): 77-80 |
| |
| 作者姓名： | 李志江 曹平 李鹏 |
| |
| 作者单位： | 中南大学资源与安全学院;华中科技大学力学系; |
| |
| 基金项目： | 国家自然科学基金(10872075) |
| |
| 摘 要： | 描述了三维结构声耦合系统建模技术的基本概念。根据间接Trefftz法的基本原理,将结构和声域展开成波函数和特解函数的叠加。应用加权余量法将结构和声学边界条件转换成近似积分,推导出一组由代数方程表示的波模型。求解方程的未知系数,再代入展开式得到结构声系统的响应预报。并用SYSNOISE软件进行了数值模拟,计算结果表明该方法具有较高的收敛速度,可为中频振动分析提供了一种新的研究思路。
|
| 关 键 词： | 结构声 加权余量法 数值模拟 Trefftz法 |
Indirect Trefftz-based Approach of Coupling Structural-Acoustic |
| |
| LI Zhi-jiang,,CAO Ping,LI Peng. Indirect Trefftz-based Approach of Coupling Structural-Acoustic[J]. Journal of Wuhan University of Technology, 2011, 0(5): 77-80 |
| |
| Authors: | LI Zhi-jiang CAO Ping LI Peng |
| |
| Affiliation: | LI Zhi-jiang1,2,CAO Ping1,LI Peng2(1.School of Resources and Safety Engineering,Central South University,Changsha 410083,China,2.School of Civil Engeering and Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China) |
| |
| Abstract: | This paper describes the basic concept of the technique for the modeling of the 3D coupled structural-acoustic systems.According to the principle of indirect Trefftz method,structural and acoustic domains are approximated in terms of wave functions and particular solutions.The structural and acoustical boundary conditions are transformed into a weighted residual formulation.Solving model for the unknown wave function contributions and back-substituting the results into the expansions yield the prediction of... |
| |
| Keywords: | structural-acoustic weighted residual formulation numerical simulation Trefftz approach |
| 本文献已被 CNKI 等数据库收录！ |
|
