基于柔性多体动力学的发动机主轴承润滑仿真分析  

Lubricating Simulation Analysis of Main Bearing on Flexible Multi-Body Dynamics

作　　者：程人杰[1] 樊文欣[1] 王东娇[1] 

机构地区：[1]中北大学机械工程与自动化学院,山西太原030051

出　　处：《小型内燃机与摩托车》2010年第3期19-22,共4页Small Internal Combustion Engine and Motorcycle

摘　　要：针对某发动机的主轴承,在ADAMS/Engine模块中建立了其曲轴系柔性多体动力学与动力润滑耦合的仿真模型。通过计算得到了曲轴的轴心轨迹、最小油膜厚度,并比较了转速、温度和轴承间隙对最小油膜厚度的影响,从而为曲轴轴系动力学耦合分析和优化设计以及判断轴承工作的可靠性提供了重要依据。The dynamics analytical model of crankshaft system Flexible Multi-Body of a diesel considering hydrodynamic lubrication was established by ADAMS/Engine.Then the journal center loci are given.The effects of different factors such as pressure,rotating speed on the journal center loci are also analyzed.It provided a more reliable foundation for the estimation of the reliability of the bearings,the coupling dynamic analysis and the optimization design of the crankshaft system.

关 键 词：主轴承 柔性多体系统动力学 动力润滑 轴心轨迹 ADAMS/Engine 

分 类 号：TK421.9[动力工程及工程热物理—动力机械及工程]