摘要
采用ANSYS软件对低碳钢平板的高频感应线状加热弯板成形过程进行热弹塑性有限元分析,利用相关数值结果定性分析了平板边界条件对最终面内收缩变形和角变形的影响,从而为船板成形自动化加工提供数据支持.结果表明,随着纵向边缘受约束点的增加,平板总应力增大,低应力区域减小,横向收缩变形增大,纵向收缩变形、横向角变形的变化趋势与横向收缩相反,纵向角变形则先减小后增大;随着约束的加强,各方向位移减小.
The plate bending process by high frequency induction heating apparatus was analyzed with ANSYS software based on the thermal-elastic-plastic finite element analysis for the mild steel plate.Numerical results were used to qualitatively analyze the influences of the changes of material and panel boundary condition on the temperature field,final shrinkage and angular distortion,which can provide the digital support for automatic machining of ship plates.The results showed that the total stress in plate would increase,low-stress zone would decrease and the transverse shrinkage would increase when the constraint points increased at the edges of the longitude direction.At the same time,the longitudinal shrinkage and the transverse angular distortion are opposite to the transverse shrinkage trend.But the longitudinal angular distortion decreases firstly,and then increases with the increase of constraint points at the edges of the longitude direction.With the constraint being strengthened,the displacements at different directions decrease.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2010年第11期101-104,共4页
Transactions of The China Welding Institution
基金
江苏省船舶先进制造技术重点实验室开放基金项目(CJ0806)
关键词
高频感应加热
曲面成形
残余塑变
热弹塑性有限元
high-frequency induction heating
curved plate bending
residual plastic strain
thermal-elastic-plastic finite element
