| 排气消声器的边界元仿真设计方法 |
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| 引用本文： | 袁兆成,丁万龙,方华,高峥. 排气消声器的边界元仿真设计方法[J]. 吉林大学学报(工学版), 2004, 34(3): 357-361 |
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| 作者姓名： | 袁兆成 丁万龙 方华 高峥 |
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| 作者单位： | 吉林大学,汽车工程学院,吉林,长春,130022;吉林大学,汽车工程学院,吉林,长春,130022;吉林大学,汽车工程学院,吉林,长春,130022;吉林大学,汽车工程学院,吉林,长春,130022 |
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| 摘 要： | 用边界元方法计算了某一摩托车排气消声器的消声性能。结果证明该边界元单元模型正确,计算方法合理。用声模态分析和声压分布图分析的综合方法分析了消声器产生消声低谷的原因,并利用长管道驻波的控制方法加以控制。这一方法对控制以轴向尺寸为主的消声结构的消声低谷非常有效。探索了一种消声器的设计和模拟分析方法。
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| 关 键 词： | 内燃机工程 排气消声器 声模态分析 边界元方法 |
| 文章编号： | 1671-5497(2004)03-0357-05 |
| 收稿时间： | 2003-12-15 |
| 修稿时间： | 2003-06-11 |
Simulation analysis of exhaust muffler with boundary element method |
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| YUAN Zhaocheng,DING Wanlong,FANG Hua,GAO Zheng. Simulation analysis of exhaust muffler with boundary element method[J]. Journal of Jilin University:Eng and Technol Ed, 2004, 34(3): 357-361 |
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| Authors: | YUAN Zhaocheng DING Wanlong FANG Hua GAO Zheng |
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| Abstract: | The acoustical behavior of a motorcycle exhaust muffler was simulated with the boundary element method.The results show that the boundary element cell modal is right and the calculation method is reasonable. The causes for the muffler attenuation trough was analyzed by the sound modal analysis and the sound pressure map analysis, and the improvement was put forward with the control measure of the long duct standing wave.This method is effictive to control muffler attenuation of the muffler structure which is Axis symmetry.Thus, a successful muffler design method is developed. |
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| Keywords: | internal-combustion engine engineering exhaust muffler sound modal analysis boundary element method |
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