基于ABAQUS的高速冷滚打网格质量的研究

Research on high speed cold roll-beating based on ABAQUS mesh quality

为了兼顾仿真效率和仿真精度,针对影响仿真结果和效率的单元类型、网格大小和网格形状进行研究。基于冷滚打成形的基本原理建立有限元仿真模型,根据高速冲击、逐渐累积和局部变形的成形特点以及成形件的形状,选择合适的单元类型;通过改变网格大小和网格形状,研究其对仿真变形力和成形精度的影响规律,并通过实验进行验证,为冷滚打成形仿真中单元类型的选择、网格大小和网格形状的划分提供借鉴。

In order to take account of the simulation efficiency and the simulation accuracy,the unit type,grid size and grid shape which affect the simulation results and efficiency are studied.By forming the cold roll-beating,the basic principle of finite element simulation model is established based on high speed impact,gradually accumulating and forming the characteristics of local deformation,with the shape of the parts formed to choose the appropriate unit types.By changing the mesh size and mesh shape and researching the simulation of deformation force and the influence rule of forming precision,which is verified by experiment for cold roll-beating forming simulation of unit type selection,providing a reference for the division of mesh size and mesh shape.