中文摘要：

选用阶梯加载、短时高载及有阻尼简谐激励动载（DHE）等加载方式,研究加载方式对球-盘配副的摩擦磨损的影响.采用测力传感器、在线可视铁谱传感器（OLVF）分别实现摩擦磨损实时监测,并分析盘试样磨损特征.与静载荷相比的结果显示：a.阶梯载荷可以减小磨合期的局部高磨损峰值;b.短时高载时,摩擦系数摩擦系数μ及百分覆盖面积比IIPCA结果显示球-盘配副有一定的承载能力,但加载时间超过60s后,磨损显著增加;c.在DHE载荷下,容易造成μ陡升.磨痕形貌分析表明：过载条件下,恒载和阶梯载荷造成的磨损以表面材料塑性流动为主,DHE载荷易造成表面疲劳;因此,球-盘配副能够承受一定的短时高载荷,阶梯载荷有利于改善配副的摩擦学性能,而DHE载荷对配副的损伤最大.

英文摘要：

The experiments of ball‐on‐disc were conducted to investigate the friction and wear process under the chosen the loading modes of stepped , transient‐high and damped harmonic excitation （DHE） loadings .Force sensor and on‐line visual Ferrograph （OLVF） sensor were used to monitor the friction and wear process in‐situ ,respectively ,and the morphology of wear track was analyzed .Com‐paring with constant loading ,it can be seen that the stepped loading can decrease the peak value of wear rate during running‐in period compared with constant loading .And under transient‐high loading , the results of index of particle coverage area （IIPCA ） and coefficient of friction （μ） show that the fric‐tion pairs have specific bearing capability ,however ,wear increases markedly with the duration beyond 60 s .DHE loading is able to cause the μsharply increasing .Morphology of wear track shows that plastic deformation of surface material is the main wear mode under the constant loading and stepped loading with overloading value ,and surface fatigue presents on the wear track under DHE loading . Therefore ,friction pair can undergo the specific transient‐high loads ,stepped loading can improve the tribology performance ,and the DHE loading manner is apt to accelerate wear process of friction pair .