摘要
利用有限元分析软件ANSYS Workbench对机床进行了静力学分析,初步了解了机床的变形情况。根据变形情况,利用动力学分析软件ADAMS对易变形及振动构件柔性化建立了刚柔耦合虚拟样机。在虚拟样机中对焊枪的平动、加减速、高速运动等不同的运动形式进行了仿真,研究分析了滑枕和丝杠的变形和振动情况,对刚性模型和刚柔耦合模型圆弧轨迹进行了对比。结果表明,刚柔耦合虚拟样机能够更真实精确地进行运动学、动力学分析,对机床的设计、改进和误差补偿有重要意义。
The static analysis of machine tool was conducted in finite element analysis( FEA) software ANSYS Workbench,and a preliminary understanding of deformation of machine was obtained. According the deformation,a flexible-rigid coupling virtual prototype was established in dynamics analysis software ADAMS by making deformable and vibration-prone components flexible. Torch's movement in different forms such as translational,acceleration and deceleration and high-speed movement were simulated in the virtual prototype,the condition of slider and screw's deformation and vibration was studied with analysis,and the circular path's difference between the rigid model and rigid-flexible coupling model was compared. The results show that the rigid-flexible coupling virtual prototype can be more realistic precise in kinematics and dynamics analysis,which has important significance for machine design,improvement and error compensation.
出处
《机床与液压》
北大核心
2015年第5期130-133,137,共5页
Machine Tool & Hydraulics
