STUDY ON WAITING TIME DEPENDENCE OF STATIC FRICTION COEFFICIENT IN ELASTIC SLIDING BEARINGS

An experiment was conducted in which the surface pressure was applied to a PTFE sliding bearing used for elastic sliding bearings and the static friction coefficient was measured after a waiting time. According to the results, we proposed a relational expression by multiple regression analysis with waiting time, surface pressure and temperature as variables, and showed that the calculated value by the proposed formula corresponds well with the experimental value. In addition, the consideration of using the proposed formula in the actual design and an example of the restoring force model were shown that the design method was proposed.