Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method
In many engineering challenges, the whole interaction between the structural domain and the acoustic domain must be taken into account, particularly for the acoustic analysis of thin structures submerged in water. The fast multipole boundary element approach is used in this work to simulate the exte...
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| Format: | Article |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.1082824/full |
| _version_ | 1828301776992862208 |
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| author | Xiuyun Chen Xiuyun Chen Yanming Xu Yanming Xu Juan Zhao Juan Zhao Ruhui Cheng Ruhui Cheng Wenqiang Ma |
| author_facet | Xiuyun Chen Xiuyun Chen Yanming Xu Yanming Xu Juan Zhao Juan Zhao Ruhui Cheng Ruhui Cheng Wenqiang Ma |
| author_sort | Xiuyun Chen |
| collection | DOAJ |
| description | In many engineering challenges, the whole interaction between the structural domain and the acoustic domain must be taken into account, particularly for the acoustic analysis of thin structures submerged in water. The fast multipole boundary element approach is used in this work to simulate the external acoustic domain and the finite element method is used to describe the structural components. To improve coupling analysis accuracy, discontinuous higher-order boundary components are created for the acoustic domain. The isogeometric boundary element method (IGABEM) discretizes unknown physical fields by using CAD spline functions as basis functions. IGABEM is inherently compatible with CAD and can perform numerical analysis on CAD models without having to go through the time-consuming meshing process required by traditional FEM/BEM and volume parameterization in isogeometric finite element methods. IGABEM’s power in tackling infinite domain issues and combining CAD and numerical analysis is fully used when it is applied to structural form optimization of three-dimensional external acoustic problems. The structural-acoustic design and optimization procedures benefit from the use of structural-acoustic design sensitivity analysis because it may provide information on how design factors affect radiated acoustic performance. This paper provides adjoint operator-based equations for sound power sensitivity on structural surfaces and direct differentiation-based equations for sound power sensitivity on arbitrary closed surfaces surrounding the radiator. Numerical illustrations are provided to show the precision and viability of the suggested approach. |
| first_indexed | 2024-04-13T13:27:51Z |
| format | Article |
| id | doaj.art-0e0c3f3e16f742be9ec84da2e54cf670 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-13T13:27:51Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-0e0c3f3e16f742be9ec84da2e54cf6702022-12-22T02:45:04ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-11-011010.3389/fphy.2022.10828241082824Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element methodXiuyun Chen0Xiuyun Chen1Yanming Xu2Yanming Xu3Juan Zhao4Juan Zhao5Ruhui Cheng6Ruhui Cheng7Wenqiang Ma8School of Architecture and Civil Engineering, Huanghuai University, Zhumadian, ChinaHenan International Joint Laboratory of Structural Mechanics and Computational Simulation, Huanghuai University, Zhumadian, ChinaSchool of Architecture and Civil Engineering, Huanghuai University, Zhumadian, ChinaHenan International Joint Laboratory of Structural Mechanics and Computational Simulation, Huanghuai University, Zhumadian, ChinaHenan International Joint Laboratory of Structural Mechanics and Computational Simulation, Huanghuai University, Zhumadian, ChinaCollege of Architecture and Civil Engineering, Xinyang Normal University, Xinyang, ChinaHenan International Joint Laboratory of Structural Mechanics and Computational Simulation, Huanghuai University, Zhumadian, ChinaCollege of Architecture and Civil Engineering, Xinyang Normal University, Xinyang, ChinaCollege of Architecture and Civil Engineering, Xinyang Normal University, Xinyang, ChinaIn many engineering challenges, the whole interaction between the structural domain and the acoustic domain must be taken into account, particularly for the acoustic analysis of thin structures submerged in water. The fast multipole boundary element approach is used in this work to simulate the external acoustic domain and the finite element method is used to describe the structural components. To improve coupling analysis accuracy, discontinuous higher-order boundary components are created for the acoustic domain. The isogeometric boundary element method (IGABEM) discretizes unknown physical fields by using CAD spline functions as basis functions. IGABEM is inherently compatible with CAD and can perform numerical analysis on CAD models without having to go through the time-consuming meshing process required by traditional FEM/BEM and volume parameterization in isogeometric finite element methods. IGABEM’s power in tackling infinite domain issues and combining CAD and numerical analysis is fully used when it is applied to structural form optimization of three-dimensional external acoustic problems. The structural-acoustic design and optimization procedures benefit from the use of structural-acoustic design sensitivity analysis because it may provide information on how design factors affect radiated acoustic performance. This paper provides adjoint operator-based equations for sound power sensitivity on structural surfaces and direct differentiation-based equations for sound power sensitivity on arbitrary closed surfaces surrounding the radiator. Numerical illustrations are provided to show the precision and viability of the suggested approach.https://www.frontiersin.org/articles/10.3389/fphy.2022.1082824/fulligaFEM/BEMstructural-acoustic couplingsound powersensitivity analysis |
| spellingShingle | Xiuyun Chen Xiuyun Chen Yanming Xu Yanming Xu Juan Zhao Juan Zhao Ruhui Cheng Ruhui Cheng Wenqiang Ma Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method Frontiers in Physics iga FEM/BEM structural-acoustic coupling sound power sensitivity analysis |
| title | Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method |
| title_full | Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method |
| title_fullStr | Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method |
| title_full_unstemmed | Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method |
| title_short | Sensitivity analysis of structural-acoustic fully-coupled system using isogeometric boundary element method |
| title_sort | sensitivity analysis of structural acoustic fully coupled system using isogeometric boundary element method |
| topic | iga FEM/BEM structural-acoustic coupling sound power sensitivity analysis |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.1082824/full |
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