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Inicio  /  Information  /  Vol: 15 Par: 2 (2024)  /  Artículo
ARTÍCULO
TITULO

A Particle-Swarm-Optimization-Algorithm-Improved Jiles?Atherton Model for Magnetorheological Dampers Considering Magnetic Hysteresis Characteristics

Ying-Qing Guo    
Meng Li    
Yang Yang    
Zhao-Dong Xu and Wen-Han Xie    

Resumen

As a typical intelligent device, magnetorheological (MR) dampers have been widely applied in vibration control and mitigation. However, the inherent hysteresis characteristics of magnetic materials can cause significant time delays and fluctuations, affecting the controllability and damping performance of MR dampers. Most existing mathematical models have not considered the adverse effects of magnetic hysteresis characteristics, and this study aims to consider such effects in MR damper models. Based on the magnetic circuit analysis of MR dampers, the Jiles?Atherton (J-A) model is adopted to characterize the magnetic hysteresis properties. Then, a weight adaptive particle swarm optimization algorithm (PSO) is introduced to the J-A model for efficient parameter identifications of this model, in which the differential evolution and the Cauchy variation are combined to improve the diversity of the population and the ability to jump out of the local optimal solution. The results obtained from the improved J-A model are compared with the experimental data under different working conditions, and it shows that the proposed J-A model can accurately predict the damping performance of MR dampers with magnetic hysteresis characteristics.

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