Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow
Combining substructure and power flow theory, in this paper an external program is written to control MSC. Nastran solution process and the substructure frequency response are also formulated accordingly. Based on a simple vehicle model, characteristics of vibration, noise, and power flow are studie...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/8725346 |
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| _version_ | 1832548074420961280 |
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| author | Zhien Liu Shuai Yuan Shenghao Xiao Songze Du Yan Zhang Chihua Lu |
| author_facet | Zhien Liu Shuai Yuan Shenghao Xiao Songze Du Yan Zhang Chihua Lu |
| author_sort | Zhien Liu |
| collection | DOAJ |
| description | Combining substructure and power flow theory, in this paper an external program is written to control MSC. Nastran solution process and the substructure frequency response are also formulated accordingly. Based on a simple vehicle model, characteristics of vibration, noise, and power flow are studied, respectively. After being compared with the result of conventional FEM (finite element method), the new method is confirmed to be feasible. When it comes to a vehicle with the problem of low-frequency noise, finite element models of substructures for vehicle body and chassis are established, respectively. In addition, substructure power flow method is also employed to examine the transfer characteristics of multidimensional vibration energy for the whole vehicle system. By virtue of the adjustment stiffness of drive shaft support and bushes at rear suspension lower arm, the vehicle interior noise is decreased by about 3 dB when the engine speed is near 1050 rpm and 1650 rpm in experiment. At the same time, this method can increase the computation efficiency by 78%, 38%, and 98% when it comes to the optimization of chassis structure, body structure, and vibration isolation components, respectively. |
| format | Article |
| id | doaj-art-aa129cc5e17c4fddbf4d282449732b2a |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-aa129cc5e17c4fddbf4d282449732b2a2025-02-03T06:42:26ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/87253468725346Full Vehicle Vibration and Noise Analysis Based on Substructure Power FlowZhien Liu0Shuai Yuan1Shenghao Xiao2Songze Du3Yan Zhang4Chihua Lu5Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaAutomotive Engineering Institute, Guangzhou Automobile Group Co., Ltd., Guangzhou 511434, ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaCombining substructure and power flow theory, in this paper an external program is written to control MSC. Nastran solution process and the substructure frequency response are also formulated accordingly. Based on a simple vehicle model, characteristics of vibration, noise, and power flow are studied, respectively. After being compared with the result of conventional FEM (finite element method), the new method is confirmed to be feasible. When it comes to a vehicle with the problem of low-frequency noise, finite element models of substructures for vehicle body and chassis are established, respectively. In addition, substructure power flow method is also employed to examine the transfer characteristics of multidimensional vibration energy for the whole vehicle system. By virtue of the adjustment stiffness of drive shaft support and bushes at rear suspension lower arm, the vehicle interior noise is decreased by about 3 dB when the engine speed is near 1050 rpm and 1650 rpm in experiment. At the same time, this method can increase the computation efficiency by 78%, 38%, and 98% when it comes to the optimization of chassis structure, body structure, and vibration isolation components, respectively.http://dx.doi.org/10.1155/2017/8725346 |
| spellingShingle | Zhien Liu Shuai Yuan Shenghao Xiao Songze Du Yan Zhang Chihua Lu Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow Shock and Vibration |
| title | Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow |
| title_full | Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow |
| title_fullStr | Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow |
| title_full_unstemmed | Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow |
| title_short | Full Vehicle Vibration and Noise Analysis Based on Substructure Power Flow |
| title_sort | full vehicle vibration and noise analysis based on substructure power flow |
| url | http://dx.doi.org/10.1155/2017/8725346 |
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