噪声与振动控制2016，Vol.36Issue(4)：148-150,3.DOI:10.3969/j.issn.1006-1335.2016.04.031
齿轮调幅调频所引起的室内啸叫噪声分析与控制
Analysis and Control of Interior Whistling Noises Caused by Frequency Modulation of Gears
姜雯 1郑军 1王弘岩 1杨安志1
作者信息
- 1. 苏州盖斯特汽车技术有限责任公司，江苏 苏州 215134
- 折叠
摘要
Abstract
A front-engine rear-wheel drive (FR) car makes whistling noise in the process of acceleration. The whistling noise becomes particularly conspicuous at a certain engine speed. Test data shows that the vibration and radiation noise of the housing of the rear-axle main decelerator have corresponding spectral characteristics. Signals of interior noise and noise vibration of the main decelerator housing in constant speed and acceleration operation conditions are collected respectively. Through the spectral analysis and modulation spectrum analysis, it is found that the whistling noise is resulted from the gear vibration modulation induced by the gear meshing of the main decelerator. This modulation takes the higher-order harmonic frequency of the gear meshing frequency of the main decelerator as the carrier frequency, and the rotating frequency of the driving gear shaft of the main decelerator as the modulation frequency. The interior whistling can be reduced significantly by raising the gear processing precision. The entire test and analysis process presents a new idea for troubleshooting of abnormal gear noises.关键词
声学/调制/阶次/齿轮/啸叫声Key words
acoustics/modulation/order/gear/whistling分类
数理科学引用本文复制引用
姜雯,郑军,王弘岩,杨安志..齿轮调幅调频所引起的室内啸叫噪声分析与控制[J].噪声与振动控制,2016,36(4):148-150,3.
