活塞-连杆-曲轴系多体动力学及其影响因素研究现状  

Research status of multi-body dynamics and influencing factors of piston-rod-crankshaft system

作　　者：石瑞[1,2] 李蜀予 任海艳[3] SHI Rui;LI Shuyu;REN Haiyan

机构地区：[1]宁夏工商职业技术学院,宁夏银川750021 [2]宁夏现代机械服务农业创新电子科技实验室,宁夏银川750021 [3]伯乐氛(北京)环境技术有限公司,北京100062

出　　处：《现代机械》2021年第5期46-52,共7页Modern Machinery

基　　金：高等职业教育创新发展行动计划宁夏特色农业装备技术研制协同创新中心建设项目(教职成函〔2019〕10号)。

摘　　要：活塞-连杆-曲轴系(PRCS)的多体动力学研究是内燃机开发设计中减少NVH和摩擦功率损失、提升工作效率和稳定性的重要手段。在多体动力学分析模型的基础上,分析了耦合摩擦副润滑特性的PRCS多体系统动力学的研究方法及不足。从润滑特性角度,综述了运动副间隙、表面变形、润滑油粘度等因素对系统动力学性能的影响,探索了各影响因素之间的关联情况。根据PRCS主要非理想转动副和移动副受力分析情况,剖析了动力与润滑影响下PRCS多体动力学的试验、数值分析与求解研究现状。最后探讨了影响PRCS多体动力学性能的研究方法及其发展方向。The multi-body dynamics study of piston-rod-crankshaft system(PRCS)is an important means in the development and design of internal combustion engines,especially in reducing NVH and friction power loss,and improving efficiency and stability.On the basis of the multi-body dynamic analysis model,the research methods and shortcomings of PRCS multi-body system dynamics are analyzed.From the perspective of the lubrication characteristics,the factors influencing the dynamic performance of the system,including kinematic pair gap,surface deformation,and viscosity of lubricating oil,as well as the relationship between the factors are explored.On the basis of force analysis of the main non-ideal revolve pair and the translational pair in PRCS,the status of experimental research,numerical analysis and solution methods of PRCS under the influence of dynamic and lubrication is analyzed.Finally,the methods and developing direction of the research on multi-body dynamics of PRCS are discussed.

关 键 词：活塞-连杆-曲轴系 非理想运动副 流体动力润滑 多体系统动力学 

分 类 号：TH113.2[机械工程—机械设计及理论] TH117.2