Transient Thermal Analysis of an Eddy-Current Heated Conductor Applying FEM-DBCI
Transient Thermal Analysis of an Eddy-Current Heated Conductor Applying FEM-DBCI
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DOI：
10.1109/tmag.2013.2241411
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发表时间：
2013-05
影响因子：
2.1
通讯作者：
G. Aiello;S. Alfonzetti;E. Dilettoso;N. Salerno
中科院分区：
文献类型：
--
作者：
G. Aiello;S. Alfonzetti;E. Dilettoso;N. Salerno
本文提出了一种计算由时谐源电流引起的涡流流动导体瞬态加热的方法。电场被假定为未知的边缘元素的网格上，并计算的时间谐波分析。计算导体内部的加热功率密度，并在相同的节点单元网格上开始瞬态热分析。这种分析一直持续到温度相关的电导率变化到足以需要另一次时间谐波涡流分析。迭代组合过程。
A method is proposed for the computation of the transient heating of a conductor in which eddy currents flow, induced by time-harmonic source currents. The electrical field is assumed as unknown on a mesh of edge elements and is computed by a time-harmonic analysis. The heating power density inside the conductor is computed and a transient thermal analysis is started on the same mesh of nodal elements. This analysis is continued until the temperature-dependent electrical conductivity changes enough to require another time-harmonic eddy-current analysis. The combined procedure is iterated.