Abstract: Kinematic pair will be affected by dust, debris and other particles during motion, and its kinetic properties will undergo more complex changes. To address this problem, the spring-slider-conveyor belt friction experiment was carried out, and the changes of the friction-velocity relationship and friction nonlinearity-velocity relationship were investigated through the introduction of confined particles such as silica, diamond and iron oxide into the aluminum slider-rubber conveyor belt. It is found that different loads, particle materials and particle sizes have different effects on friction-velocity relationship. With the increase of the load, the mean friction and the standard deviation of the friction of the slider increase. After adding the silica particles, the mean friction tends to decrease, while the standard deviation of the friction tends to decrease first and then increase slightly. After adding diamond and iron oxide particles, the mean friction tends to increase, while the standard deviation of the friction tends to decrease. With the increase of particle size, the mean friction and the standard deviation of the friction of the slider tend to increase. This study has some implications for the kinetic properties of kinematic pairs containing confined particles.
Keywords: confined particles; friction; friction nonlinearity; slider; kinematic pair
合肥工业大学学报自科版