Modeling of a Giant Magnetostrictive Device for Magnetic Force Control Based on Inverse Magnetostrictive Effect

ZHENG Jiaju ¹ WANG Hongli¹ CAO Shuying²

(1. School of Mechanical Engineering, Tianjin University, Tianjin 300072;
2. School of Electrical Engineering & Automation, Hebei University of Technology, Tianjin 300130)

Abstract: The relationship between the input stress and the output flux density of the giant magnetostrictive devices exhibits hysteretic nonlinearity. A hysteretic model of a giant magnetostrictive device for magnetic force control is established based on the Jiles-Atherton model, the law of approach for the magnetomechanical effect and the magnetic circuit law. Experimental results show that the proposed model can better describe the hysteretic relationship among the input stress, the output flux density and magnetic force for the device under varying stress and constant bias magnetic field. The model can also predict the effect of the bias magnetic field on the output performance of the device. Therefore, the proposed model has important guiding significance for design and analysis of the devices.

Key words: Giant magnetostrictive device  Hysteresis Ji les-Atherton model  Law of approach Inverse magnetostrictive effect

CLC No: TP211+.53

国家自然科学基金资助项目(10732020). Received 20070517, 20071212

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