| The data simulation analysis of the electromagnetic heating of the multi-coil thin plate provides an effective modeling basis for the temperature control system,but due to the irregularity of the industrial heating mold,it cannot adapt to its modeling requirements.In this paper,hypothetical research is carried out on the basis of the study of electromagnetic heating of thin plates.Thin plates and cylinders with fixed positions on the thin plates are defined as irregular workpieces.The effect of the height of the cylinders on temperature is the research direction to explore the surface temperature distribution of the workpieces and analyze different parameters.Research on the impact of its simulation results and provide a simulation analysis method and data support for the electromagnetic heating system of irregular workpieces under this model and subsequent researchers.This article first analyzes the characteristics of the workpiece under this model and establishes a mathematical model of the boundary conditions of the magnetic field,eddy current field and temperature field based on the electromagnetic heating problem.Use ANSYS to carry out finite element analysis,establish electromagnetic heating model and carry out numerical analysis,analyze the distribution of magnetic field,eddy current field and temperature field under the arrangement of multi-coil structure,as well as the influence of current intensity and heating frequency on the surface temperature distribution of workpiece.Secondly,while keeping the remaining parameters unchanged,the simulation results are compared and analyzed for different electromagnetic coil structures.By comparing the multi-coil and the traditional single coil,the matrix multi-coil structure with different phase excitation is compared with the honeycomb multicoil arrangement structure,it is known that the matrix multi-coil arrangement is better than the single coil and multi-coil honeycomb arrangement.The multi-coil array arrangement is the main research model of the coil.A basic mathematical model is established for the workpiece.The irregular workpiece is analyzed by electromagnetic heating through different column height,current intensity,energization frequency,air gap size and other parameters,and the corresponding temperature is obtained.Field results.At the same time,the direct coupling method is used for parameter verification,the least square method is used for machine learning,and the temperature is verified and predicted,so as to obtain the temperature gradient curve under different parameters,and finally obtain the analysis result.Analysis of the results shows that the surface temperature of the workpiece is positively correlated with temperature difference,current intensity and frequency,and negatively correlated with the size of the air gap and the height of the cylinder.The priority is air gap> current intensity> cylinder height> frequency,that is,in a specific In this case,the temperature distribution can be adjusted by adjusting its parameter changes.Secondly,in terms of structure,multiple coils are better than single coils,array arrangements are better than honeycomb arrangements,and curved rectangular coils are better than circular coils.The above analysis results provide parameter correlation for the electromagnetic heating system of irregular workpieces,and provide an effective simulation analysis method for subsequent researchers. |
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