Gevrek İnce Metal Sacların Çeşitli Uyarma Akımı Frekanslarıyla Isıtmak için İndüksiyonla Isıtma Sisteminin Simülasyonu ve Gerçekleştirilmesi

Year 2024, Volume: 16 Issue: 2, 895 - 908, 30.06.2024

Sude Hatem

https://doi.org/10.29137/umagd.1439051

Abstract

İndüksiyonla ısıtma işlemi birçok farklı değişkenle ilişkili olduğundan dolayı doğrusal olmayan bir problemdir. Bu problemin matematiksel analizi oldukça zordur ve basitleştirilmesi gerekmektedir. Çoğu durumda, parametrelerin mekansal geometriye dayalı olarak hesaplanması da önem taşımaktadır. Bu çalışma indüksiyonla ısıtma probleminin bir simülasyon modelini ele almaktadır. Arşimet spiral bobininin çeşitli akımları ve frekansları altında kırılgan metal levhaların indüksiyonla ısıtma özellikleri, karmaşık yapılara bir çözüm olan COMSOL Multiphysics'in sonlu elemanlar yöntemi kullanılarak simüle edilmiştir. Kısmi etkileri ayırt etmek için bobin modeli, gerçek bobinin geometrisine çok yakın olacak şekilde ayarlanmıştır. Simülasyon süreci iki aşamadan oluşmaktadır. İlk durum, frekans alanı analizinde uyarma akımı frekansının kademeli olarak arttırılmasıyla ısıtma işleminin değerlendirilmesi ile elde edilirken, ikinci durum, frekans geçici durumunda sabit frekanslı bir akımın uygulanması ve ısıtma işleminin modelde değerlendirilmesi ile elde edilir. Dolayısıyla simülasyon modeli her iki durumda da iş parçası malzemesinin doğrusal olmayan elektromanyetik ve termal özellikleri hakkında temel bilgileri sağlar. Simülasyon modeli sonuçlarını doğrulamak için bir laboratuvar modeli geliştirilip ve deneysel sıcaklık ölçümleri simülasyon sonuçlarıyla karşılaştırılmıştır.

Keywords

İndüksiyonla ısıtma, Manyetik akı, Elektromanyetik, Doğrusal Olmama, Multifizik

Simulation and Implementation of an Induction Heating System for Heating Brittle Thin Metal Sheets by Various Excitation Current Frequencies

Abstract

The induction heating process is a highly nonlinear problem due to its connection with various factors. The complex nature of this issue presents a notable difficulty for mathematical analysis and requires a simplification. Additionally, deriving parameters from spatial geometry can be a challenging undertaking in most instances. This paper deals with a simulation model of the induction heating problemThe finite element method within COMSOL Multiphysics is utilized to simulate the induction heating characteristics of fragile metal sheets subjected to different currents and frequencies from an Archimedean spiral coil. This serves as an effective solution for intricate constructions. To distinguish between partial influences, the coil model is modified to closely mirror the actual coil's geometry. The simulation process includes two phases. The former situation is attained by evaluating heating process by gradually increasing the excitation current frequency in frequency domain analysis and the latter scenario is achieved by implementing constant frequency current in a frequency transient condition and assessing the heating procedure within the model. Therefore, in both instances, the simulation model offers crucial insights into the nonlinear electromagnetic and thermal properties of the the workpiece material. To confirm the results of the simulation model, a laboratory prototype is constructed, and comparison between experimental temperature measurements and simulation results is conducted.

Keywords

Induction heating, Magnetic flux, Electromagnetics, Nonlinearity, Multiphysics

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