Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation
To study the car radiated noise caused by turbulent pressure fluctuation on the side glass under wind excitation, a clay model of DrivAer was constructed except that the front left side window was built with real glass. Firstly, the constraint boundary condition of the side glass was set equivalent...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/5828725 |
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| _version_ | 1832548862029463552 |
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| author | Yinzhi He Zihao Shi Yu Wu Zhigang Yang |
| author_facet | Yinzhi He Zihao Shi Yu Wu Zhigang Yang |
| author_sort | Yinzhi He |
| collection | DOAJ |
| description | To study the car radiated noise caused by turbulent pressure fluctuation on the side glass under wind excitation, a clay model of DrivAer was constructed except that the front left side window was built with real glass. Firstly, the constraint boundary condition of the side glass was set equivalent to a series of springs for the modelling with Finite Element Method (FEM). Then, a platform based on Matlab-Abaqus cosimulation was originally developed, and the genetic algorithm was applied to find out the best fitted spring stiffness, which was used to build the equivalent model. Then working as excitation, the Corcos model was applied to calculate the power spectrum density of the turbulence pressure fluctuations acting on the side glass. Subsequently, the finite element modal superposition method was used to solve the vibroacoustic coupling equation to get the noise level of the driver’s ear position in the vehicle interior. Finally, the surface vibration velocity distribution of side glass under wind excitation was measured with Laser Vibrometer and then with Boundary Element Method (BEM), the radiated noise into interior was calculated as well (semisimulation). Through comparison of these two results, it shows good agreement up to 1000 Hz. It demonstrates that the above method is applicable to calculate the sound radiation caused by the side glass’ vibration at the low and middle frequency range. Therefore, an approach of calculating sound radiation of a vibrating glass caused by the air convective pressure fluctuation was explored. |
| format | Article |
| id | doaj-art-0816b598965f45aeabc3bc97ccf9f3bb |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-0816b598965f45aeabc3bc97ccf9f3bb2025-02-03T06:12:46ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/58287255828725Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind ExcitationYinzhi He0Zihao Shi1Yu Wu2Zhigang Yang3School of Automotive Studies, Tongji University, Shanghai 201804, ChinaSchool of Automotive Studies, Tongji University, Shanghai 201804, ChinaSchool of Automotive Studies, Tongji University, Shanghai 201804, ChinaSchool of Automotive Studies, Tongji University, Shanghai 201804, ChinaTo study the car radiated noise caused by turbulent pressure fluctuation on the side glass under wind excitation, a clay model of DrivAer was constructed except that the front left side window was built with real glass. Firstly, the constraint boundary condition of the side glass was set equivalent to a series of springs for the modelling with Finite Element Method (FEM). Then, a platform based on Matlab-Abaqus cosimulation was originally developed, and the genetic algorithm was applied to find out the best fitted spring stiffness, which was used to build the equivalent model. Then working as excitation, the Corcos model was applied to calculate the power spectrum density of the turbulence pressure fluctuations acting on the side glass. Subsequently, the finite element modal superposition method was used to solve the vibroacoustic coupling equation to get the noise level of the driver’s ear position in the vehicle interior. Finally, the surface vibration velocity distribution of side glass under wind excitation was measured with Laser Vibrometer and then with Boundary Element Method (BEM), the radiated noise into interior was calculated as well (semisimulation). Through comparison of these two results, it shows good agreement up to 1000 Hz. It demonstrates that the above method is applicable to calculate the sound radiation caused by the side glass’ vibration at the low and middle frequency range. Therefore, an approach of calculating sound radiation of a vibrating glass caused by the air convective pressure fluctuation was explored.http://dx.doi.org/10.1155/2018/5828725 |
| spellingShingle | Yinzhi He Zihao Shi Yu Wu Zhigang Yang Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation Shock and Vibration |
| title | Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation |
| title_full | Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation |
| title_fullStr | Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation |
| title_full_unstemmed | Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation |
| title_short | Sound Radiation Analysis of a Front Side Window Glass of DrivAer Model under Wind Excitation |
| title_sort | sound radiation analysis of a front side window glass of drivaer model under wind excitation |
| url | http://dx.doi.org/10.1155/2018/5828725 |
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