弯曲轴电机噪声源的高精度定位

Q3 Physics and Astronomy

Noise and Vibration Worldwide Pub Date : 2023-05-30 DOI:10.1177/09574565231179953

Chen Xu, Xiangming Meng, Qinghong Gong, Huang Hui, Shumei Chen, Du Heng, Yuzheng Li, Xiufang Lin

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引用次数: 0

摘要

液压马达在运行中会产生噪音，具有流体结构耦合和紧凑的内部结构。声强测量很难区分电机的噪声源。本文研究了一种高精度的弯轴电机噪声源定位方法，以提高声强图像的分辨率，准确定位噪声源。首先，分析了电机的结构特点，通过实验获得了电机的声强图像。然后根据声强场的特点，设计了基于压缩传感的高分辨率优化方法。最后，构建了高分辨率的声强图像。高分辨率图像可以区分突出点的位置，误差小于0.4dB。噪声源识别距离可达30mm，突破了传统声强测试的最高分辨率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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High precision localisation of the sources of noise of a bent-axis motor

The hydraulic motor will generate noise in operation and it has fluid-structure coupling and compact internal structure. The sound intensity measurement is difficult to distinguish the noise sources of motor. In this paper, a high-precision localization method for noise sources of bent-axis motor is studied to improve the resolution of the sound intensity images to locate noise sources accurately. Firstly, the structural characteristics of the motor are analyzed, and the sound intensity images are obtained through the experiment. Then the high-resolution optimization method based on compressed sensing is designed according to the characteristics of the sound intensity field. Finally, the sound intensity images with high resolution are constructed. The high-resolution images can distinguish the position of the prominent points, and the error is less than 0.4 dB. The identification distance of noise sources can reach 30 mm, and it breaks through the highest resolution of the traditional sound intensity test.

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来源期刊

Noise and Vibration Worldwide Physics and Astronomy-Acoustics and Ultrasonics

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： Noise & Vibration Worldwide (NVWW) is the WORLD"S LEADING MAGAZINE on all aspects of the cause, effect, measurement, acceptable levels and methods of control of noise and vibration, keeping you up-to-date on all the latest developments and applications in noise and vibration control.