轴承结构参数的随机性对轴承刚度灵敏度的影响

发布时间：2018-01-16 04:09

本文关键词：轴承结构参数的随机性对轴承刚度灵敏度的影响　出处：《东北大学学报(自然科学版)》2017年06期 　论文类型：期刊论文

【摘要】：采用拉丁超立方抽样确定了角接触球轴承结构参数的样本点,通过Powell和Newton-Raphson相结合的算法计算了非线性方程组,将计算得到的轴承刚度的响应值应用Kriging法进行响应面拟合.利用M onte Carlo随机抽样法确定了轴承结构参数的均值和方差对轴承刚度均值的灵敏度.研究结果表明:轴承轴向和径向刚度对轴承结构参数的均值和方差的灵敏度呈现相反的影响趋势.轴承刚度对轴承滚动体直径的变化反应最灵敏,轴承内、外圈沟道曲率半径的变化对其影响次之,外沟道直径的变化对其影响最小.该研究为轴承的结构参数和加工精度的选择及零件的分选提供了理论依据.
[Abstract]:The sample points of the structural parameters of angular contact ball bearings are determined by Latin hypercube sampling, and the nonlinear equations are calculated by the combination of Powell and Newton-Raphson. The response value of bearing stiffness was fitted by Kriging method. M onte was used to fit the response surface. The sensitivity of the mean and variance of bearing structural parameters to the mean value of bearing stiffness is determined by Carlo random sampling method. The results show that:. The axial and radial stiffness of the bearing has the opposite effect on the sensitivity of the mean and variance of the bearing structure parameters, and the bearing stiffness is the most sensitive to the change of the bearing rolling body diameter. In the bearing, the change of curvature radius of outer ring channel is the second, and the change of outer channel diameter is the least. This study provides a theoretical basis for the selection of bearing structure parameters and machining accuracy, as well as for the sorting of parts.
【作者单位】：东北大学机械工程与自动化学院;山东省科学院海洋仪器仪表研究所;郑州宇通客车股份有限公司;一汽解放汽车有限公司;
【基金】：国家科技重大专项(2013ZX04011-011)
【分类号】：TH133.3
【正文快照】： 轴承刚度是轴承关键的服役性能之一,对主轴-轴承系统的动态特性有重要的影响[1-2].其中,角接触球轴承的刚度受轴承结构参数和服役条件等多种因素的影响.文献[3-5]研究指出轴承过盈配合量、离心位移及预紧力等参数的增加均会引起轴承刚度的增大.文献[6]通过实验法进行了角接触

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