| AN EFFICIENT PREDICTION METHOD FOR THE TWO-DIMENSIONAL COUPLED STRUCTURAL-ACOUSTIC ANALYSIS |
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| 引用本文： | Huang Fei He Zeng Peng Weicai. AN EFFICIENT PREDICTION METHOD FOR THE TWO-DIMENSIONAL COUPLED STRUCTURAL-ACOUSTIC ANALYSIS[J]. Acta Mechanica Solida Sinica, 2006, 19(4): 327-333. DOI: 10.1007/s10338-006-0639-z |
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| 作者姓名： | Huang Fei He Zeng Peng Weicai |
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| 作者单位： | Department of Mechanics, Huazhong University of Science ＆ Technology, Wuhan 430074, China |
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| 摘 要： | A wave number method (WNM) is proposed to deal with the two-dimensional cou-pled structural-acoustic problem. Based on an indirect Trefftz approach, the displacement andthe pressure response are approximated respectively by a set of wave functions, which exactlysatisfy the governing equations and are independent of the size of the coupled system. The wavefunctions comprise the exact solutions of the homogeneous part of the governing equations andsome particular solution functions, which arise from the external excitation. The weighting coef-ficients of the wave functions can be obtained by enforcing the pressure approximation to satisfythe boundary conditions and it is performed by applying the weighted residual formulation. Theexample is computed by the WNM and the BEM. The results show that, the WNM can attainthe same accuracy and convergence as the BEM with less degrees of freedom. structural-acoustic, Trefftz-method,BEM,weighted residual formulation
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| 关 键 词： | 波数法 二维耦合结构-声音问题 效率预测方法 波函数 加权剩余 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-11-05 |
AN EFFICIENT PREDICTION METHOD FOR THE TWO-DIMENSIONAL COUPLED STRUCTURAL-ACOUSTIC ANALYSIS |
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| Huang Fei,He Zeng,Peng Weicai. AN EFFICIENT PREDICTION METHOD FOR THE TWO-DIMENSIONAL COUPLED STRUCTURAL-ACOUSTIC ANALYSIS[J]. Acta Mechanica Solida Sinica, 2006, 19(4): 327-333. DOI: 10.1007/s10338-006-0639-z |
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| Authors: | Huang Fei He Zeng Peng Weicai |
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| Affiliation: | 1. Department of Physics, Center for Optoelectronics Engineering Research, Yunnan University, Kunming, 650091, PR China;2. Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, M5G 3E4, Canada;3. School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055, PR China;1. Department of Mechanical Engineering, Siksha ''O'' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India;2. Department of Mechanical Engineering, Sanskriti University, Mathura, Uttar Pradesh, India |
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| Abstract: | A wave number method (WNM) is proposed to deal with the two-dimensional cou- pled structural-acoustic problem. Based on an indirect Trefftz approach, the displacement and the pressure response are approximated respectively by a set of wave functions, which exactly satisfy the governing equations and are independent of the size of the coupled system. The wave functions comprise the exact solutions of the homogeneous part of the governing equations and some particular solution functions, which arise from the external excitation. The weighting coef- ficients of the wave functions can be obtained by enforcing the pressure approximation to satisfy the boundary conditions and it is performed by applying the weighted residual formulation. The example is computed by the WNM and the BEM. The results show that, the WNM can attain the same accuracy and convergence as the BEM with less degrees of freedom. |
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| Keywords: | structural-acoustic Trefftz-method BEM weighted residual formulation |
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