Abstract: The oil film disturbing force between pairs has their effection on the dynamic strain responses of the elastic linkage with a proper lubrication condition. In this paper, based on the three dimensional Reynolds equation and Sommerfield condition, with considering variation of oil film depth and its effection on the extrusion, the analytical model of elastic four-bar linkage mechanisms has been set up.

Key words: 刚度, 连杆机构, 油膜, 运动副