Research on Heat Source Model and Numerical Simulation of High Frequency Induction Heating Forming
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摘要: 基于高频感应加热涡流分布及透入深度的特点,为模拟钢板高频电磁感应加热成形的温度场,提高数值模拟计算精度,结合电磁感应加热头的形状尺寸,建立了一种用于模拟电磁感应加热成形的热源模型。模型建立过程中,对其能量分布给出了明确的热流表达式,利用有限元方法分析了电磁感应加热成形的热源模型的有效性。结果表明,利用该热源模型分析的温度场结果与试验结果吻合良好。高频电磁感应加热的峰值温度位于感应加热头作用区域,随着输出功率或感应加热时间的增加,峰值温度增加。Abstract: In order to simulate the temperature field of high frequency induction heating forming and improve the accuracy of numerical simulation,a heat source model for high frequency induction heating forming was established based on the characteristic of vortex distribution and head shape dimension of electromagnetic induction heating. The function expression of energy distribution was proposed in the process of establishing the model. The effectiveness of heat source model of high frequency induction heating forming was analyzed by using finite element analysis software. The results show that the simulation results of temperature field analysis agree well with experimental data. The peak temperature is located in head zone of electromagnetic induction heating. The peak temperature increases with the increase of output power and induction heating time.
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