关键词: 变幅载荷, 疲劳寿命, 填充天然橡胶, 应变比, 预测

Abstract: In this paper, theoretical calculation and experimental measurement about thermal effect on static characteristics of elliptical bearings are carried out. The heat transfer between film and both of shaft and bush, the effect of elastic deformation of bush have been taken into account. In addition ,the temperature distribution of bush eccentricity ratios and flow rates have been measured under different conditions of rotational speeds and loads. The theoretical results rather agree with the experimental data.

Key words: Fatigue life, Filled natural rubber, Life prediction, Strain R-ratio, Variable amplitude loading