Abstract:In mechanical engineering, damage or fatigue due to relative motion between contacting bodies has always been the focus of research. However, in relative motion, the zone of the contact area is constantly changing. To accurately simulate the stress in the contact area, the mesh of all potential contact areas needs to be refined. To avoid this problem, a mesh updating method is adopted. Employing this method, only the mesh of the potential contact area at the current moment needs to be refined, and the matching meshes can be ensured. Besides, the rotating coordinate system method is used in this paper. By this method, the equivalence of boundary integral equations before and after sliding or rolling can be derived, avoiding repeated integral calculations. Based on the above methods, the solution method for 2D sliding or rolling contact problems is proposed, and the effectiveness of the proposed method is verified by numerical examples.