基于ANSYS/LS-DYNA的摇臂轴承动力学分析  

Dynamic Analysis on Rocker Arm Bearings Based on ANSYS/LS-DYNA

作　　者：张凯[1] 袁祖强[1] 孙芃[1] 

机构地区：[1]南京工业大学车辆与工程机械研究所,南京211800

出　　处：《轴承》2018年第3期6-9,共4页Bearing

摘　　要：针对摇臂轴承工作过程中载荷多变、内部接触应力分布不均的问题,以某发动机用摇臂轴承为例,基于ANSYS/LS-DYNA对其进行动力学仿真分析,得到了摇臂轴承的受力情况,并分析了摇臂轴承各零件位移、速度、加速度,结果表明:摇臂轴承最大接触应力出现在外圈与凸轮接触处,轴承各零部件运动情况由于受凸轮轮廓曲线影响,呈现非周期性并在一定的范围内变化。Aiming at variable load and uneven distribution of internal contact stress of rocker arm bearings during working,taking rocker arm bearings for a certain type of engine as examples,the dynamic simulation analysis is carried out based on ANSYS/LS-DYNA. The load of rocker arm bearings is obtained. The variation of displacement,speed and acceleration of each part of rocker arm bearings is analyzed. The analysis results provide a reference for design of rocker arm bearings. The results show that the maximum contact stress of rocker arm bearings appears at contact area between surface of outer rings and cam. All parts of the bearings present nonperiodic motion and vary within a certain range due to effect of profile curve of cam.

关 键 词：摇臂轴承 ANSYS/LS-DYNA 显式动力学 仿真分析 

分 类 号：TH133.33[机械工程—机械制造及自动化] TH113.22