Number simulation analysis of self-lubricating joint bearing liner wear

摘要

The finite element model of sliding wear is established by using finite element theory according to Archard wear model. The general program is developed by ANSYS parametric design language. The liner of bearing average ware rate is 9.75 × 10~(-7)mm~3/(Nm) by pin on disc tester. Then the wear analysis of self-lubricating joint bearing liner is carried out. The simulation results and the experimental results are very consistent. The relative error is 6.38%. The orthogonal experimental design is carried out to obtain the minimum wear depth, and the optimal structural parameters are obtained. In the simulation, the concept of the wear step length is introduced, and the method of moving boundary contact point of the liner region in the model is used to describe the material removal process. The parametric modeling is used to refine the liner layer and then divide the mesh, and then the internal meshes distortion caused by boundary point change is solved. Meanwhile, the appropriate wear step length is used to improve the computational efficiency and accuracy.