中文摘要：

探讨滚轮滑轨运动机构中滚轮在滑轨上滚动时滑轨的磨损情况；以Archard模型为基础，建立滑轨磨损深度的计算模型；将载荷、容许磨损量、材料属性和磨损因数均视为随机变量，提出滑轨磨损的可靠性计算模型和分析方法，并以某飞机襟翼滚轮滑轨运动机构为例，给出不同飞行架次下滑轨磨损失效概率，可为飞机襟翼滚轮滑轨设计提供有益参考。

英文摘要：

It is well known, the roller wheel rolls on its track can cause wear-out failure. However, the wear reliability of roller wheel and its track subjected to contact loading are less studied. Aiming at the kinesio-machanism consisting of a roller wheel and a roller track, the wear status of the roller track is discussesd here. A ealeulation method model for the roller track wear is estabilished aceording to Arehard model. Considering wear allowance, material properties and wear coeffient are assumed as random variables, a reliability analysis model for the wear is put forward. Taking the kinesio-maehanism of the roller wheel/roller track as an example, the failure pro- bility due to wear in different flights number is illustrated. The caleulation results indicate that the dispersibility of wear coeffient markedly affects the failure probability of roller track. The evalution results can provide a governing referenee for the roller track design.