| 内燃机机体模态分析及辐射噪声的预测 |
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| 引用本文： | 李惠珍 俞明. 内燃机机体模态分析及辐射噪声的预测[J]. 内燃机工程, 1994, 15(2): 1-6 |
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| 作者姓名： | 李惠珍 俞明 |
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| 作者单位： | 吉林工业大学!长春市130025(李惠珍)，吉林工业大学(俞明，袁兆成，李盛成，方华) |
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| 摘 要： | 利用有限元技术，建立了内燃机机体模态分析及辐射噪声计算模型，并经过理论计算得到了机体的模态参数及表面噪声分布图。而且对机体进行了试验模态分析及表面声强测试。对比理论分析值与实测值表明，两较一致，说明核计算方法符合实际，可用作低噪声机体设计。
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| 关 键 词： | 振动 噪声 有限元分析 机体 内燃机 |
Predict of Engine Block Model Analysis And Its Radiate Noise |
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| Li Huizhen, Yu Ming ,Yuan Zhaocheng, Li Shengcheng, Fang Hua. Predict of Engine Block Model Analysis And Its Radiate Noise[J]. Chinese Internal Combustion Engine Engineering, 1994, 15(2): 1-6 |
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| Authors: | Li Huizhen Yu Ming Yuan Zhaocheng Li Shengcheng Fang Hua |
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| Affiliation: | Jilin University of Technology |
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| Abstract: | In this paper a finite element model for engine block dynamic character analysis and radiate noise calculation is establisted. And then the dynamic character and the radiate noise are analysed theoretically with this model. The parameters of the engine block model and the noise distribution of its surface are obtained.The measured surface sound intensity of engine shows quite consistency with the analytical result obtainable with the engine block model. This means that the recommended theoretical method is effective, and the paper offers a better method for low noise engine block design. |
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| Keywords: | Vibration Noise Model Finite Element Analysis Engine Block ICE |
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