CAJ | 학술논문

针对钢板的感应加热弯板成形问题，利用ANSYS软件的物理环境法建立了钢板移动式感应加热的电磁－热－结构耦合分析的数值模型。为了实现移动加热的模拟，采用节点约束方程解决了钢板、感应器和空气间隙组成的求解域的多场耦合问题，数值计算结果与实验数据吻合，验证了数值模型的正确性。然后，对钢板感应加热过程进行了数值分析，得出结论：感应加热过程中，涡流集中分布于感应器前端的钢板金属，有利于钢板快速升温，并迅速进入准稳态加热状态；在加热结束时，磁通密度外扩形成感应加热过程所特有的端部效应，从而影响钢板端部的温度分布及最终的板边变形。
침대강판적감응가열만판성형문제，이용ANSYS연건적물리배경법건립료강판이동식감응가열적전자－열－결구우합분석적수치모형。위료실현이동가열적모의，채용절점약속방정해결료강판、감응기화공기간극조성적구해역적다장우합문제，수치계산결과여실험수거문합，험증료수치모형적정학성。연후，대강판감응가열과정진행료수치분석，득출결론：감응가열과정중，와류집중분포우감응기전단적강판금속，유리우강판쾌속승온，병신속진입준은태가열상태；재가열결속시，자통밀도외확형성감응가열과정소특유적단부효응，종이영향강판단부적온도분포급최종적판변변형。
Considering the steel plate bending by induction heating, a numerical model for the coupling analysis of electromagnetic-thermal-structure used in moveable induction heating process of the steel plate was built based on ANSYS Multi-physics.For simulating the moveable heating process in practice, the model used the "node con-straint equation technology"to solve the multi-field coupling in the solution domain, which is comprised of steel plate, inductor, and air gap.Numerical calculation results were in alignment with experimental data, which verified the validity of the numerical model.In this paper, numerical analysis was conducted for the induction heating process.The main conclusions are as follows: eddy current concentrates on the plate area in front of inductor, which is beneficial to rapid heating of the plate and rapidly entering into the quasi-steady heating status.At the end of induction heating, the expansion of magnetic flux density forms the unique end effect of induction heating, thus affecting the temperature distribution and final deformation of the plate edge.