( 1. 中南大学 材料科学与工程学院, 长沙 410083;
2. 南京航空航天大学 材料科学与技术学院, 南京 210016)
摘 要: 利用ANSYS有限元法对铜/塑自润滑滑块进行了结构优化。 在正压力不变的条件下,对两种不同截面的滑块进行了承载力和摩擦对比实验。 结果表明: 圆柱截面滑块的极限承载力为82.1kN/cm, 而菱形截面滑块的极限承载力为65.9kN/cm, 两种不同截面自润滑滑块的干摩擦因数均小于0.1, 与有限元法的优化结果一致。
关键字: 摩擦磨损; 滑块; 自润滑材料; 有限元
( 1. School of Materials Science and Engineering,
Central South University, Changsha 410083, China;
2. College of Materials Science and Technology,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
Abstract: The structure of brass-plastics self-lubricating composites was optimized with the ANSYS finite element method. When the normal pressure of slideway is unalterable, the load carrying capacity of the self-lubricating slideway for cylinder section is heavier than that of the lozenge section. The experiments of friction and load carrying capacity for the different section self-lubricating slideway were done. The results show that the limit load carrying capacity of cylinder section slideway is 82.1kN/cm, but the limit load carrying capacity of lozenge section slideway is 65.9kN/cm, the friction coefficients of two types of different section slideway are less than 0.1. The results of calculation and experiment are accordant.
Key words: friction and wear; slideway; self-lubricating composite; finite element