Study on magneto-mechanical coupling model for giant magnetostrictive actuator

Guoping Li; Tongpeng Han; Luwei Wang

doi:10.1117/12.837490

20 October 2009 Study on magneto-mechanical coupling model for giant magnetostrictive actuator

Guoping Li, Tongpeng Han, Luwei Wang

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74934V (2009) https://doi.org/10.1117/12.837490
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

Based on analysis of the motion law of giant magnetostrictive material magnetic domain under magnetic field, a hysteresis model based on magnetization for giant magnetostrictive actuator is established. The model incorporates operating conditions of the actuator and fully considers nonlinear and hysteresis characteristics of the material. It includes two sub-models: magnetostriction and magnetization. The relationship between the strain λ and the magnetization M is illustrated in the magnetostriction model. The magnetization model describes the relationships amongst the effective field H_eff , the anhysteretic magnetization M_an , the reversible magnetization M_rev , the irreversible magnetization M_irr and the total magnetization M . The full set of parameters was estimated through a least square fit with experimental data. The model is proved to be able to accurate describe the relation between the input current I and the output strain λ by analyzing the experimental result.

Citation Download Citation

Guoping Li, Tongpeng Han, and Luwei Wang "Study on magneto-mechanical coupling model for giant magnetostrictive actuator", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74934V (20 October 2009); https://doi.org/10.1117/12.837490

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