Abstract
Mechanical stress significantly influences the hysteresis characteristics of silicon steel, which are crucial for the design of electrical equipment cores. This study develops an improved Energy-based hysteresis model that integrates the effects of mechanical stress by modifying the anhysteretic magnetization model to include total average anisotropy energy density and introducing a linear relationship between coercive force and mechanical stress. The model’s performance is demonstrated using 30QG120 oriented silicon steel sheets, where the hysteresis loops under varying stress conditions are successfully simulated and validated against experimental data. The results confirm the model’s accuracy and practical utility in predicting material behavior under mechanical stress, offering a valuable tool for optimizing electrical steel sheet design.
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