Influence of mesh type on the cutting simulationquality of aviation thin-walled cylinder
-
摘要: 为了探索单元类型以及网格划分方式对航空薄壁圆筒车削仿真过程的影响,利用Abaqus软件和AdvantEdge软件对薄三维模型以及薄壁圆筒模型的车削过程进行了对比分析,同时以主切削力和切屑形态为指标对切削仿真质量进行了评价。结果表明:在保证薄三维切削仿真精度的前提下,六面体网格可以极大地节省计算时间,更好地反映切削过程中的切屑形态和已加工表面质量等物理量的变化;航空薄壁圆筒车削仿真中采用扫略网格画法可以在一定程度上提高计算效率和工件表面质量。Abstract: In order to explore the influence of element types and meshing methods on the turning simulation process of aviation thin-walled cylinder, Abaqus and AdvantEdge were used to compare and analyze the turning process of thin 3D model and thin-walled cylinder model, and the cutting simulation quality was evaluated with the main cutting force and chip morphology as the indexes. The results show that the hexahedral mesh can greatly save the computation time on the premise of guaranteeing the thin 3D cutting simulation accuracy. According to the comparison and analysis of the thin-wall cylinder model, the hexahedral mesh can better reflect the changes of physical parameters such as chip morphology and machined surface quality in the cutting process. Sweep method can improve the efficiency and surface quality of workpiece to a certain extent.
-
Key words:
- finite element simulation /
- mesh generation /
- cutting force /
- titanium alloy
点击查看大图
计量
- 文章访问数: 184
- HTML全文浏览量: 33
- PDF下载量: 11
- 被引次数: 0