中文摘要：

目前对于分布式拉杆转子轮盘接触刚度的研究较多使用的是Hertz 接触理论.Hertz 接触理论把轮盘间的接触等效为微观微凸体弹性半球之间的接触过于理想化,不能精确地模拟轮盘接触的实际情况;且Hertz 接触理论中弹性半球接触角大于30 °时计算结果就会出现很大误差.基于Persson 接触理论提出一种新的接触模型,优化了分布式拉杆转子轮盘接触刚度的求解方法.

英文摘要：

Most researchers have studied the contact stiffness of rod-fastened rotors by using Hertz contact theory. In this theory, the contact layer is idealized as several spherical bumps with equal radius of curvature against a rigid flat. It is not consistent with the actual situation. Besides, when the contact angles of the asperity exceed 30°, which is very common in real contact condition, the results will include overlarge errors according to the Hertz contact theory. In this paper, a new contact model based on the Persson's contact theory was proposed and used for analyzing the contact stiffness of an RFR. Some accurate results were obtained.