汽车发动机噪声源位置识别方法研究  

Research on the Location Recognition Method of Automobile Engine Noise Source

作　　者：于涛[1] Yu Tao(Xi an Aeronautical Polytechnic Institute,Xi an 710000,China)

机构地区：[1]西安航空职业技术学院,西安710000

出　　处：《粘接》2021年第4期189-192,共4页Adhesion

摘　　要：为了控制汽车发动机的噪声,最关键性的工作就是识别噪声源位置。噪声源位置识别的方式较多,文章提出了一种逆边界元方法对噪声源位置进行识别,该方法操作更加的简单,具有较好的可实施性。通过边界元法构建声源传递向量,然后将声压测量作为输入数据,通过逆向数值计算方法计算出振动速度,于是就可以得叨噪声源位置信息。为了验证该方法的有效性,将其应用于某汽车发送机噪声源位置识别中,实验结果表明,文章研究的识别方法与实际结果基本保持一致,验证了该方法的有效性。In order to control the noise of automobile engines,the most critical task is to identify the location of the noise source.There are many ways to identify the location of the noise source.The paper proposes an inverse boundary element method to identify the location of the noise source.This method is simpler to operate and has better implementability.The sound source transfer vector is constructed by the boundary element method,and then the sound pressure measurement is used as the input data,and the vibration velocity is calculated by the inverse numerical calculation method,so that the position information of the noise source can be obtained.In order to verify the effectiveness of this method,it is applied to the location identification of a car transmitter noise source.The experimental results show that the identification method studied in this paper is basically consistent with the actual results,which verifies the effectiveness of the method.

关 键 词：发动机 噪声源 位置识别 

分 类 号：TP274.5[自动化与计算机技术—检测技术与自动化装置]