活塞环/缸套摩擦副表面织构优化设计方法  

Optimization Design Method of Surface Texturing for the Ring-liner Conjunction

作　　者：张迪 顾春兴[3] ZHANG Di;GU Chunxing(Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China;School of Mechanical Electronic Technology,Shanghai Jianqiao University,Shanghai 201306,China;School of Mechanical Engineering,University of Shanghai For Science and Technology,Shanghai 200093,China)

机构地区：[1]上海海事大学商船学院,上海201306 [2]上海建桥学院机电学院,上海201306 [3]上海理工大学机械工程学院,上海200093

出　　处：《润滑与密封》2023年第9期133-139,共7页Lubrication Engineering

基　　金：上海市青年科技英才扬帆计划(19YF1434500);上海市科学技术委员会重点项目(18060502400)。

摘　　要：应用表面织构改善活塞环/缸套摩擦副的摩擦学特性,是改善其工作经济性、可靠性的最有效手段之一。以质量守恒润滑模型与微凸体接触模型为基础,构建面向织构系统的混合润滑模型。在混合润滑模型的基础上,通过选择合适的活塞环/缸套摩擦副性能评价指标,确定优化活塞环/缸套摩擦副性能的目标函数,结合粒子群优化算法,研究一种在活塞环表面对不同深度微凹坑进行优化设计的新方法。基于大量的数值模拟试验可以发现,具有优化织构深度的微织构可以提高活塞环/缸套摩擦副摩擦学性能,提高了承载能力,降低了摩擦力,验证了所提出的织构优化设计方法是可行的。Introducing surface texturing to improve the tribological properties of the ring-liner conjunction is one of the most effective means to improve its working reliability.Based on the mass conservation lubrication model and the asperity contact model,a mixed lubrication model for the textured system was developed.By the mixed lubrication model,after selecting appropriate performance evaluation indexes of the ring-liner conjunction,the objective function for optimizing the performance of the ring-liner conjunction was determined.Combined with particle swarm optimization algorithm,a new method for optimizing the dimensions of textures with different depths on the surface of piston ring was studied.Based on a large number of numerical simulation tests,it is found that surface texturing with the optimized depth can improve the tribological performances of the ring-liner conjunction,improves the bearing capacity and reduces the friction,which verfies the proposed texture optimization design method is feasible.

关 键 词：混合润滑 数值模拟 织构 活塞环 优化设计 

分 类 号：TH117[机械工程—机械设计及理论]