东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (10): 1516-1520.DOI: 10.12068/j.issn.1005-3026.2014.10.033

• 机械工程 • 上一篇    

高精密滚动轴承游隙的可靠性保障

李皓川，孙志礼，闫明   

  1. (东北大学 机械工程与自动化学院，辽宁 沈阳110819)
  • 收稿日期:2013-09-29 修回日期:2013-09-29 出版日期:2014-10-15 发布日期:2014-05-19
  • 通讯作者: 李皓川
  • 作者简介:李皓川(1987-)，男，吉林双辽人，东北大学博士研究生；孙志礼(1957-)，男，山东巨野人，东北大学教授，博士生导师.
  • 基金资助:
    航空科学基金资助项目(20110450001).

Reliability Assurance of Highly Precise Rolling Bearing Clearance

LI Haochuan， SUN Zhili， YAN Ming   

  1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.
  • Received:2013-09-29 Revised:2013-09-29 Online:2014-10-15 Published:2014-05-19
  • Contact: LI Haochuan
  • About author:-
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摘要： 以滚动轴承为研究对象，以可靠性理论为指导对轴承游隙进行设计.首先根据弹性力学理论推导工作游隙计算公式，得到过盈配合量、转速等随机因素对游隙的影响规律，并基于Monte-Carlo法实现了原始游隙分布与工作游隙分布之间的相互转换.在研究最佳工作游隙区间时，基于滚动轴承拟动力学分析，计算得到了不同工作游隙下轴承内部载荷分布情况，并基于非线性振动的分岔理论，绘制了轴承-转子系统的分岔图，得到不同工作游隙对非线性系统稳定性的影响规律.基于确定的最佳工作游隙区间，实现了对原始游隙区间的控制，为保障高精密轴承游隙的可靠性提供了理论依据.

关键词: 可靠性设计, 滚动轴承, 游隙, 拟动力学分析, 分岔

Abstract: A reliabilitybased design for rolling bearing clearance was carried out. The effects of random factors like interference fitting and speed on clearance were obtained based on the theory of elasticity， and the conversion of initial and working clearance distribution was realized using the MonteCarlo method. In the analysis of getting optimal interval of working clearance， the load distribution of bearing under different clearances was calculated based on quasidynamic analysis， and the bifurcation diagram of bearingrotor system under different clearances was plotted with theory of bifurcation of nonlinear vibration. The initial clearance interval was controlled to ensure the reliability of clearance of bearing on the basis of the optimal interval of working clearance for highly precise bearing clearance.

Key words: reliabilitybased design, rolling bearing, clearance, quasidynamic analysis, bifurcation

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