辅助站立机构刚柔耦合动力学仿真分析研究  

Research of the Rigid-flexible Coupling Dynamics Simulation Analysis of Auxiliary Standing Mechanism

作　　者：周辉[1] 秦宝荣[1] 鲍家华[1] 张冬冬[1] 项秉乐 王郑兴 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部/浙江省重点实验室,浙江杭州310014 [2]浙江恒林椅业股份有限公司,浙江安吉313300

出　　处：《机械传动》2016年第5期92-95,共4页Journal of Mechanical Transmission

摘　　要：针对柔性小、受力大的零件作为纯刚体进行分析时,其结果与实际情况有较大偏差的问题。首先简述辅助站立机构的工作原理,并运用ADAMS与ANSYS联合仿真建立辅助站立机构刚柔耦合动力学仿真模型。基于该仿真模型,得出辅助站立机构一个运动周期中上方管的动态应力,进一步确定整个时间历程中上、下方管应力最大对应的时刻,并与Workbench中对应时刻计算的准动态应力进行分析比较。研究结果表明,在误差允许的情况下,二者基本吻合。验证了基于刚柔耦合动力学仿真模型的理论计算动态应力方法的准确性;同时相较于有限元法,刚柔耦合动力学仿真模型的分析结果能够更加准确的反映机构真实性能。Aiming at the problem of large deviation between the simulation results and the actual situation when regarding the pure rigid body as the smaller stiffness part with large force. Firstly,the working theory of auxiliary standing mechanism is sketched,then the rigid- flexible coupling dynamic simulation model is set up by utilizing the ADAMS and ANSYS. Based on the simulation model,the dynamic stress of upper and lower pipe in one movement cycle of the auxiliary standing mechanism is obtained,and the corresponding moment of the largest stress in the whole time course is further determined,then it is compared with the dynamic stress calculation results of the corresponding time in Workbench. The research results show that under the condition of the permitted error,the two results are basically consistent. The accuracy of theoretical calculation dynamic stress method based on the rigid- flexible coupling dynamics simulation model is verified,as the same time,compared with the finite element method,the analysis result of rigid- flexible coupling model can reflect the real dynamics behaviors of mechanism.

关 键 词：辅助站立机构 柔性体 刚柔耦合 动态应力 

分 类 号：TH112[机械工程—机械设计及理论]