scholarly journals Numerical Simulation of the Moving Induction Heating Process with Magnetic Flux Concentrator

2013 ◽  
Vol 5 ◽  
pp. 907295 ◽  
Author(s):  
Feng Li ◽  
Xuekun Li ◽  
Tianxing Zhu ◽  
Yiming (Kevin) Rong
Keyword(s):  
Numerical Simulation ◽  
Magnetic Flux ◽  
Induction Heating ◽  
Heating Process ◽  
Flux Concentrator

Influence of magnetic flux concentrator on the induction heating process in crystal growth systems-geometry investigation

CrystEngComm ◽  
2018 ◽  
Vol 20 (48) ◽  
pp. 7857-7865 ◽  
Author(s):  
Hamed Heidari ◽  
Mohammad Hossein Tavakoli ◽  
Sayed Omid Sobhani ◽  
Mohtaram Honarmandnia
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crystal Growth ◽  
Magnetic Flux ◽  
Induction Heating ◽  
Heating Process ◽  
Geometry Effect ◽  
Czochralski Crystal Growth ◽  
Growth System ◽  
Flux Concentrator

In this paper, a magnetic flux concentrator (MFC) is reported, and its geometry effect on the induction heating process has been calculated in a Czochralski crystal growth system using the 2D finite element method.

Numerical Simulation on Induction Heating Process for Crankshaft Shrink Fitting

2012 ◽  
Vol 215-216 ◽  
pp. 1111-1117
Author(s):  
Qing Lei Zhang ◽  
Bai Yu Zhao ◽  
Jing Kuan Guo
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Induction Heating ◽  
Heating Process ◽  
Technological Parameters ◽  
Effect Factors ◽  
Large Size ◽  
Heating Device ◽  
Shrink Fitting ◽  
Frequency Current

Based on induction heating theory, a finite elementmodel for electromagnetic-temperature field has been developed. The simulation of induction heating process in large size crankshaft shrink fitting is carried out by using FEA software ANSYS. With temperature and deformation distribution being calculated, the characteristics and effect factors in the induction heating process are also analyzed. In conclusion, the optimized crankshaft heating techonology could be estabished by adjusting technological parameters of the heating device. Specifically, frequency, current, heating position, etc.

Numerical and experimental study of electromagnetic induction heating process for bolted flange joints

2021 ◽  
pp. 095440622110071
Author(s):  
Zhufeng Liu ◽  
Yonghui Xie ◽  
Xiaolong Ye ◽  
Jun Wang ◽  
Bin Liu
Keyword(s):  
Numerical Simulation ◽  
Induction Heating ◽  
Electromagnetic Induction ◽  
Search Algorithm ◽  
Axial Stress ◽  
Pattern Search ◽  
Heating Process ◽  
Wall Region ◽  
Electromagnetic Induction Heating ◽  
Bolted Flange

As a promising metalwork processing technology, electromagnetic induction heating (EMIH) method has been applied in dealing with bolted flange joints in turbomachinery. In this study, a 3-D finite element model of electromagnetic induction heating system for the bolted flange joint is established, and the specific governing equations are derived based on Maxwell’s principle. The alternately-coupled magneto-thermal analysis is carried out considering temperature-dependent material properties to obtain the temperature distribution, followed with the uncoupled thermal-mechanical analysis to acquire the axial stress and deformation in EMIH process. The magnetic induction intensity mainly concentrates at the inner wall region, attenuates seriously along the radial direction, and reduces to almost zero at the outer wall. Due to the skin effect, the heat transfers radially and axially outward, indicating a diamondlike-shaped development from the center to the surrounding region. The axial stress with and without initial pretension are also discussed respectively. Then the corresponding experiments are introduced and carried out to validate the reliability of numerical simulation results. By comparing the results of the center point of inner surface and outer surface, the numerical simulation is proved reliable with a 5∼10% reasonable deviation. Further, the induction heating process has been improved through the optimization method based on pattern search algorithm. By adopting the stepped input current density optimized in the study, the optimal thermal stress tends to be constant and the final heating time reduces by 20.5% in the safe range of stress.

Numerical Simulation of PC Steel Bar Induction Heating Process

2011 ◽  
Vol 228-229 ◽  
pp. 270-275
Author(s):  
Qian Zhe Zhao ◽  
Yi Bing Liu ◽  
Yan Ping Liu ◽  
Wei Song Zhou
Keyword(s):  
Numerical Simulation ◽  
Induction Heating ◽  
Active Power ◽  
Experimental Fact ◽  
Heating Process ◽  
Temperature Uniformity ◽  
Element Analysis ◽  
Heating Efficiency ◽  
Steel Bar ◽  
Main Factors

Based on electromagnetic and temperature field models of nonlinear ferromagnetic materials, this paper conducts a finite element analysis of the induction heating process of PC steel bar, thus obtaining the change curves of temperature, active power, heating efficiency and power density. The main factors and mechanisms affecting the heating efficiency and the temperature uniformity are analyzed systematically by a combination of the simulation result and the experimental fact. This work is expected to contribute significantly for optimizing the key parameters of induction heating production of PC steel bar.

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