| 发动机油底壳辐射噪声控制研究 |
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| 引用本文： | 许响林,李景渊.发动机油底壳辐射噪声控制研究[J].客车技术与研究,2007,29(5):7-8. |
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| 作者姓名： | 许响林 李景渊 |
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| 作者单位： | 重庆嘉斯特质量检测有限公司,国家客车质量监督检验中心,重庆,401122 |
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| 摘 要： | 利用有限元法分析某发动机油底壳的振动特性,对其表面辐射噪声进行研究。首先对油底壳进行模态分析,研究其固有频率和振型,然后对油底壳进行瞬态振动响应分析,由此确定油底壳在发动机工作过程中振动较强的部位,并据此提出抑制油底壳振动,以降低其表面辐射噪声的方案。
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| 关 键 词： | 发动机油底壳 模态分析 瞬态振动 噪声控制 |
| 文章编号： | 1006-3331（2007）05-0007-02 |
| 收稿时间： | 2007-01-23 |
Study on Controlling Noise Radiated from Engine Oilpan Surface |
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| XU Xiang-lin,LI Jing-yuan.Study on Controlling Noise Radiated from Engine Oilpan Surface[J].Bus Technology and Research,2007,29(5):7-8. |
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| Authors: | XU Xiang-lin LI Jing-yuan |
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| Institution: | National Coach Quality Supervision and Testing Center, Chongqing 401122, China |
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| Abstract: | Vibration characteristics of an engine oilpan are analyzed using FEM and radiated noise from the oilpan surface is researched.First,modal analysis of the oilpan is done and characteristics of natural modal are researched.Then,transient vibration response of the oilpan is analyzed and the positions on which the vibration is the most intensive are found out.According to these,a scheme to suppress the vibration of the oilpan is put forward and the radiated noise is reduced. |
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| Keywords: | engine oilpan modal analysis transient vibration noise control |
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