文章摘要
吴飞,余神志,刘苏行,吴泽昊,丁军,程科.车用制动空气压缩机结构辐射噪声特性研究[J].声学技术,2021,40(2):228~233
车用制动空气压缩机结构辐射噪声特性研究
Simulation and experimental study on the radiation noise characteristics of air compressor structure of vehicle brake
投稿时间:2019-10-07  修订日期:2019-10-23
DOI:10.16300/j.cnki.1000-3630.2021.02.013
中文关键词: 空压机  结构噪声  瞬态动力学  声学边界元
英文关键词: air compressor  structural noise  transient dynamics  acoustic boundary element
基金项目:中央高校基本科研业务费专项资金资助(191004005)。
作者单位E-mail
吴飞 武汉理工大学, 湖北武汉 430070  
余神志 武汉理工大学, 湖北武汉 430070 1013793486@qq.com 
刘苏行 武汉理工大学, 湖北武汉 430070  
吴泽昊 武汉理工大学, 湖北武汉 430070  
丁军 武汉理工大学, 湖北武汉 430070  
程科 武汉理工大学, 湖北武汉 430070  
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中文摘要:
      针对某公司生产的KYV480型号车用制动活塞式空气压缩机(简称:空压机)运行过程中,振动噪声较大,一定程度上影响了驾驶员和乘客的乘车舒适性和身心健康的情况,文章基于有限元和声学边界元联合求解的方法对空压机的结构表面辐射噪声特性进行研究。在计算得到空压机运行过程中壳体所受载荷的基础上,对空压机壳体表面的振动加速度响应进行仿真计算,并与实验得到的壳体振动加速度数据进行对比分析,两者吻合较好。将仿真计算得到的空压机壳体表面加速度作为声学仿真的边界条件,采取声学边界元法计算壳体表面辐射噪声。结果表明,空压机运行过程中的中低频噪声主要是由壳体振动辐射噪声引起的,为空压机后续的结构设计和改进提供了有效的指导。
英文摘要:
      In view of the fact that the vibration and noise of KYV480 brake piston air compressor are relatively strong in its operation process, which affects the riding comfort and the physical and mental health of drivers and passengers to a certain extent, the radiation noise characteristics of the shell surface of air compressor are studied based on the joint solution of finite element method and acoustic boundary element method in this paper. On the basis of calculating the loads on the shell in its operation process of the air compressor, the vibration acceleration response of the shell surface of the air compressor is simulated and compared with the vibration acceleration data of the shell obtained from the experiment, and the results are in good agreement. Acoustic boundary element method is used to calculate the noise radiated from the surface of an air compressor shell. The results show that the medium and low frequency noise in the operation process of an air compressor is mainly caused by the radiation noise of the shell vibration, which provides an effective guidance for the subsequent structural design and improvement of the air compressor.
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