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本文讨论了滑动轴承油膜存在三个自由度时的稳定性准则。在给出轴心涡动三维运动方程的基础上 ,分析了三维油膜的作功状况 ,并进而给出了判别油膜在三维情况下稳定性的两种方法。最后采用迭代法对径向 -推力联合动静压轴承的稳定性进行了计算机求解 ,得到了其相应的三维稳定性参数。
This paper discusses the stability criterion of sliding bearing oil film with three degrees of freedom. Based on the three-dimensional motion equation of the whirling of the axis, the working status of the three-dimensional oil film is analyzed and two methods of determining the stability of the oil film in the three-dimensional case are given. Finally, the stability of radial-thrust joint hydrostatic bearing was solved by iterative method and the corresponding three-dimensional stability parameters were obtained.