滚动体尺寸误差对全陶瓷球轴承辐射噪声影响分析

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (19) : 55-61.

论文

白晓天1,2，石怀涛1,2，张珂2，吴玉厚1,2

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Effects of ball size errors on radiated noise of full ceramic ball bearing

BAI Xiaotian1,2, SHI Huaitao1,2, ZHANG Ke2, WU Yuhou1,2

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文章历史 +

摘要

针对全陶瓷球轴承刚度大，滚动体径向变形小于其尺寸误差，传统模型对其辐射噪声计算精度差的问题，考虑滚动体尺寸误差建立了适用于全陶瓷球轴承的动力学模型，并基于子声源分解理论对其辐射噪声特性进行了仿真分析与实验验证。结果表明，考虑滚动体尺寸误差的理论模型对全陶瓷轴承辐射噪声特性计算更为准确，滚动体尺寸误差会导致全陶瓷球轴承构件之间摩擦与撞击加剧，辐射噪声增大，且辐射噪声周向分布呈现明显不均匀性。全陶瓷球轴承球径差幅值与球径差幅值比的改变会影响承载滚动体与轴承套圈间相互作用情况，从而对辐射噪声周向分布造成显著影响。本研究为全陶瓷球轴承设计与辐射噪声分析提供了理论基础，对提升全陶瓷球轴承声学特性具有参考价值。

Abstract

Aiming at problems of full ceramic ball bearing having larger stiffness, ball’s radial deformation being smaller than its size errors and the traditional model calculation accuracy being poor for its radiated noise, a dynamic model for a full ceramic ball bearing was established considering ball’s size errors. Based on the sub-sound source decomposition theory, simulation analysis and test verification were conducted for its radiated noise characteristics. Results showed that the theoretical model considering ball’s size errors is more correct for calculation of its radiated noise characteristics; ball’s size errors causes friction and impact between components of full ceramic ball bearing aggravating, its radiated noise increasing and radiated noise circumferential distribution showing obvious heterogeneity; changes of ball diameter difference amplitude and ball diameter difference ratio can affect interaction between balls and rings, and obviously affect radiated noise circumferential distribution; this study provides a theoretical basis for design and radiated noise analysis of full ceramic ball bearing, and a reference for improving acoustic characteristics of full ceramic ball bearing.

导出引用

白晓天1,2，石怀涛1,2，张珂2，吴玉厚1,2. 滚动体尺寸误差对全陶瓷球轴承辐射噪声影响分析[J]. 振动与冲击, 2020, 39(19): 55-61

BAI Xiaotian1,2, SHI Huaitao1,2, ZHANG Ke2, WU Yuhou1,2. Effects of ball size errors on radiated noise of full ceramic ball bearing[J]. Journal of Vibration and Shock, 2020, 39(19): 55-61

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