Raceway waviness error is the main reason to cause rolling elements to vibrate along axial direction and emit noise. In this paper, the mechanical analysis on deep groove ball bearing is carried out. With auto-correlation function, random surface waviness of both inner and outer raceways is simulated. A contact model of rolling elements and raceways considering surface waviness is established. Combining with the theory of acoustic equation, a calculation model is established for the noise caused by vibration of rolling elements and inner ring. The results show that with the decrease of machining accuracy, the noise of rolling elements increases due to axial vibration; with the increase of rotation speed, the noise also increases. Besides, the spectrum of radiation noise of inner raceway with different waviness amplitudes is given. The results indicate that the 3-D waviness on raceway surface has an influence on the vibration and the noise emitted by both rolling elements and inner ring, and provide guidance for sound control in deep groove rolling bearing.

滚道波纹度误差是引起滚动体沿轴向振动并发出噪声的主要原因。本文对深沟球轴承进行了力学分析。通过自相关函数，模拟内外滚道的随机表面波纹度。建立了考虑表面波纹度的滚动体与滚道接触模型。结合声学方程理论，建立了滚动体和内圈振动噪声的计算模型。结果表明，随着加工精度的降低，滚动体因轴向振动而产生的噪声增大；随着转速的增加，噪音也随之增加。此外，还给出了不同波纹幅值的内滚道辐射噪声谱。