利用相似原理推导出与机械密封摩擦磨损过程有关的相似准则,提出简化准则关系式的方法。简化了的关系式可用于处理机械密封性能实验数据。实验研究证明,机械密封摩擦磨损过程中的部分非定性参数与一些无因次相似准则之间存在幂函数关系。 Similar principles are used to derive similar criteria for friction and wear processes of mechanical seals, and a method of simplifying the relationship between the criteria is proposed. The simplified relationship can be used to process experimental data on mechanical seal performance. Experimental results show that there exists a power function relationship between some unsteady parameters in the process of friction and wear of mechanical seals and some dimensionless similarity criteria.