A numerical model for induction heating processes coupling electromagnetism and thermomechanics
A numerical model for induction heating processes coupling electromagnetism and thermomechanics
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DOI：
10.1002/nme.796
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发表时间：
2003-10-14
影响因子：
2.9
通讯作者：
Chenot, JL
中科院分区：
文献类型：
--
作者：
Bay, F;Labbe, V;Chenot, JL
本文提出了轴对称感应加热过程中发生的各种物理现象（电磁、热和机械）耦合的数学和数值模型。这三种电磁学、热学和力学模型都是时变的，充分考虑了电磁学和热学的非线性效应，特别是磁性材料。对工件、空气和电感中的电磁问题进行离散化求解。传热方程和力学平衡方程仅在工件内求解，均采用有限元方法。力学模型可以考虑零件的热弹塑性行为。该模型已成功地应用于若干感应加热实例。数值计算结果与实验结果吻合良好。版权所有：John Wiley Sons， Ltd。
This paper presents a mathematical and numerical model developed for coupling the various physical phenomena (electromagnetic, thermal and mechanical) taking place in axisymmetrical induction heating processes. All three electromagnetic, thermal and mechanical models are time dependent and take full account of the electromagnetic and thermal non-linear effect especially with magnetic materials. The electromagnetic problem is discretized and solved in the workpiece, air and inductors. The heat transfer equation and the mechanical equilibrium equations are solved in the workpiece only, both using a finite element method. The mechanical model can take into account thermoelastic-plastic behaviour for the part. The model has been successfully applied to several cases of induction heating. Comparisons between numerical and experimental results show an excellent agreement. Copyright (C) 2003 John Wiley Sons, Ltd.