| Structual Dynamic Characteristics Analysis and Improvement for Two-way Branch Exhaust Pipe Shield |
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| 作者姓名： | XIANG Yang DENG Zhao-xiang CHU Zhi-gang WANG Pan |
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| 作者单位： | 1. School of Automobile and Transportation Engineering, Xihua University, Chengdu, Siehuan 610039, China; 2. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, China |
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| 摘 要： | The two-way branch exhaust pipe shield is the main source of surface radiate noise of a vehicle's engine.(Using) the finite element analysis software ANSYS,a finite element model of the shield is established,and then the(modal) analysis is done theoretically with this model,the result is consistent with the experiment.The result shows that this finite element model can be used for the next structual dynamic characteristics analysis.With this model,the relationship of structural parameter,structural style of the shield and the corresponding vibrative modal is analyzed.The(optimal) improved measures are adopted which is based on the practical structure of the shield.The analysis of the(improved) structure shows that the increase of natural vibration frequency is visible,the vibration noise of the shield is suppressed distinctly.
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| 关 键 词： | two-way branch exhaust pipe shield FEM modal analysis structural analysis |
| 收稿时间： | 2005/5/24 0:00:00 |
| 修稿时间： | 2005/5/24 0:00:00 |
Structual Dynamic Characteristics Analysis and Improvement for Two-way Branch Exhaust Pipe Shield |
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| XIANG Yang,DENG Zhao-xiang,CHU Zhi-gang,WANG Pan.Structual Dynamic Characteristics Analysis and Improvement for Two-way Branch Exhaust Pipe Shield[J].Storage & Process,2005(10):17-20. |
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| Authors: | XIANG Yang DENG Zhao-xiang CHU Zhi-gang WANG Pan |
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| Institution: | 1. School of Automobile and Transportation Engineering, Xihua University, Chengdu, Siehuan 610039, China; 2. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, China |
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| Abstract: | The two-way branch exhaust pipe shield is the main source of surface radiate noise of a vehicle's engine.(Using) the finite element analysis software ANSYS,a finite element model of the shield is established,and then the(modal) analysis is done theoretically with this model,the result is consistent with the experiment.The result shows that this finite element model can be used for the next structual dynamic characteristics analysis.With this model,the relationship of structural parameter,structural style of the shield and the corresponding vibrative modal is analyzed.The(optimal) improved measures are adopted which is based on the practical structure of the shield.The analysis of the(improved) structure shows that the increase of natural vibration frequency is visible,the vibration noise of the shield is suppressed distinctly. |
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| Keywords: | two-way branch exhaust pipe shield FEM modal analysis structural analysis |
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