Abstract
In the present study, in order to express the normal pressure and sliding velocity dependency of frictional force, the numerical model was developed based on the tribology theory and the property of materials. This model could show the good agreement with the experimental results in the stationary vibration state, but it is impossible to present the decrease of the friction coefficient just after the beginning of frictional motion. Taking account with the temperature characteristics, the proposed model is revised. Since it is very difficult to measure the temperature at the real contact area, the hysteresis energy of the isolator is used instead of the temperature. Compared with the experimental results, it is found that the numerical model can simulate well the behavior of frictional isolators under variational normal pressure, sliding velocity and temperature.
