中文摘要：

在分析了高速角接触球轴承动态特性方程组的基础上，对动态特性的辅助方程进行了寻求根本变量的分析，得到了各个方程组变量相互耦合的关系图和根本变量。根据高速角接触球轴承受纯轴向力时的特点，提出了应用接触角进行迭代求解动态特性的计算方法。为了确定接触角的求解域，根据文献的计算结果分析了随着载荷和转速的变化内接触角增量小于外接触角增量的特点，并应用本文提出的迭代方法对算例进行了计算，验证了对接触角增量变化分析的正确性，从而将接触角的搜索范围缩小一半，减少了计算量。

英文摘要：

Based on the system analysis of dynamic equations group of high-speed angular-contact ball bearing, an analysis to find the ultimate variables of the adjunct equations was given, and a chart about coupled variables was obtained which showed that the contact angle are the ultimate variables. Based on above-mentioned analysis, according to the feature of the bearing under axial load, an algorithm has been put forward, which took the contact angle as the iterate variables. Based on the present calculation results, an analysis was given, which showed that the increment of internal contact angle is larger than that of external contact angle, the analysis would be helpful to define the contact angle field. By using the method of contact angle iterate, an example was given, which verified the analysis of increment of contact angle is correct. So the search field of contact angle has been reduced half, and the calculation is simplified obviously.