摘要
The influence of high-frequency vibration parallel to the sliding direction on friction force was analyzed by taking dry sliding friction pair of polymer composite and metal as the object of the research. A model of friction reduction with in-plane high-frequency vibration was proposed. The friction coefficient as a function of scale and direction of relative sliding velocity was discussed. The friction coefficient as a function of the amplitude of in-plane vibration velocity and sliding velocity was experimentally studied with a self-developed high-frequency vibration tribometer. The experimental results are in agreement with theoretical predictions. The results show that in-plane high-frequency vibration has obvious effect on reducing friction force under certain conditions.