锻压技术

钢板高频感应移动加热成形有限元建模及模拟研究

英文标题：Finite element modeling and simulation research of high frequency induction heating forming of steel plate based on moving heat source

作者：张继祥徐昱王智祥钟厉刘紫阳

单位：重庆交通大学

关键词：高频感应加热成形有限元模拟移动热源模型

分类号：

出版年,卷(期):页码：2014,39(7):40-46

摘要：

基于Ansys-APDL语言，采用磁场与温度场耦合移动热源，对感应加热钢板进行三维电磁-热-应力耦合模拟分析。结果表明，钢板加热时温度场和钢板Y方向变形场分布都不均匀，加热最后区域均出现明显的端部效应；加热区前端的温度梯度大，尾端的温度梯度小，钢板上下表面出现较大的温差；加热区域Y方向变形量UY随加热功率的增加而增大，随加热速度v的增大而减小；随着加热功率的增大，钢板弯曲角度θ线性增大，曲率半径ρ先减小后趋于定值；随着线圈移动速度的加快，钢板的弯曲角度θ线性减小，曲率半径ρ先增大后趋于定值。

Based on Ansys-APDL language, using magnetic field and temperature field coupling moving heat source, three-dimensional induction heating electromagnetic-heat-stress coupling for steel plate was simulated. The results show that temperature field and Y direction deformation field of the steel plate are uneven in the process of heating, obvious end effect appears in the end of the heating areas; the temperature gradient of the front end of heating area is large, the temperature gradient of the tail end is small, and there is big temperature difference between upper and bottom surface of steel plate. Y direction deformation in heating area increases with the increasing of heating power, and decreases with the increasing of heating rate. With the increasing of heating power, bending angle of steel plate increases linearly, radius of curvature decreases first and then tends to be a constant value. With the speeding up of movement speed of coil, bending angle of steel plate decreases linearly, radius of curvature increases first and then tend to be a constant value.

基金项目：

重庆市教育委员会科学技术研究项目（KJ080407）；重庆市基础与前沿研究计划一般项目（cstc2013jcyjA70015）

张继祥（1971-），男，博士，副教授

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