A Simplified Friction Force Model of Transient Sliding Contact Between Hard and Soft Surfaces I. A Literature Overview of Friction Force Models

Modelling and simulation of mechanical systems is very useful to predict the system’s response. Friction is important since it influence the functionality and reliability of the system. Friction force is difficult to model in transient regime when relative velocity is zero and some discontinuity appears in simulation. In this paper the authors presented a literature overview regarding the friction force models used to simulate the transient sliding frictional contact in mechanical systems. Also, the authors have proposed a simplified friction force model based on Heaviside function. Some preliminary simulation results were obtained regarding the transition of friction force from positive to negative values in a sliding frictional process.