| 苏俊收,庄超,李军,刘汉光.某型振动轮噪声数值模拟及优化分析[J].,2020,39(2):236-245 |
| 某型振动轮噪声数值模拟及优化分析 |
| Numerical Simulation and Optimization Analysis of Vibration Wheel noise |
| 投稿时间：2019-05-06 修订日期：2020-02-25 |
| 中文摘要: |
| 以某型振动轮为研究对象,首先基于动力学有限元理论对振动轮进行频率响应分析,再次采用声学边界元技术对振动轮辐射噪声进行了数值模拟,并通过实验验证了仿真结果的准确性,然后比较了垂直振动与圆周振动两种不同激振形式对辐射噪声的影响,得出垂直振动辐射噪声低的结论,最后对驾驶室声腔模态进行了仿真,与振动轮激振频率相近发生共振,通过调整激振频率,降低了司机耳旁噪声,所得研究成果可为振动轮辐射噪声的预估与改进提供一种切实可行的参考依据。 |
| 英文摘要: |
| Taking a vibration wheel as the research object, the frequency response of the vibration wheel is analyzed based on the dynamic finite element theory, and then the acoustic boundary element technique is used to simulate the radiated noise of the vibration wheel. The accuracy of the simulation results is verified by experiments. Then the effects of vertical vibration and circular vibration on radiation noise are compared, and a conclusion is drawn that the radiation noise of vertical vibration is low. Finally, the acoustic cavity mode of the cab is simulated, which is similar to the excitation frequency of the vibration wheel. By adjusting the excitation frequency, the noise near the driverundefineds ear is reduced. The results obtained in this paper can provide a practical reference for the prediction and improvement of radiated noise of vibration wheel. |
| DOI：10.11684/j.issn.1000-310X.2020.02.009 |
| 中文关键词: 振动轮 有限元 声学边界元 垂直振动 |
| 英文关键词: Vibration Wheel finite element method acoustic boundary element vertical vibration |
| 基金项目:国家重点研发计划(2016YFC0802900) |
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