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 the Ansys-APDL language, the coupled heat and magnetic field and temperature field were used to simulate the three-dimensional electromagnetic-thermal-mechanical coupling of induction heating steel. The results show that both the temperature field and the deformation field in the Y direction of the steel plate are not uniform, and the end effect is obvious in the last heating region. The temperature gradient at the front of the heating region is large, the temperature gradient at the tail end is small, and the upper and lower surfaces of the steel plate appear larger ; The YY deformation of the heating zone UY increases with the increase of heating power and decreases with the increase of heating speed v; as the heating power increases, the bending angle θ of the steel increases linearly, and the radius of curvature ρ Then decrease to the fixed value. With the increase of the moving speed of the coil, the bending angle θ of the steel decreases linearly and the radius of curvature ρ firstly increases and then tends to the fixed value.