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Energy and magnetostriction analysis and nonlinear model of magnetostrictive actuator for precision drive

Author

Listed:
  • Huifang Liu
  • Xingwei Sun
  • Quan Liang
  • Yuqing Bo

Abstract

Magnetic hysteresis and eddy-current heating are the most significant disadvantages in giant magnetostrictive materials (GMM). And these properties have an effect on the displacement precision and other working performances of giant magnetostrictive actuator (GMA). To know and solve these above problems fundamentally, the key point is establishing a mathematical model which can describe magnetisation hysteresis process and energy loss characteristics for GMM and analysing the essential reason which causes hysteresis phenomenon. In this paper, on the basis of Armstrong theory and through analysing the composition of elastic Gibbs free energy, a nonlinear magnetisation and magnetostriction model is established. Experimental results show that this model can predict the magnetisation property, magnetostriction, magnetic potential orientation, energy loss characteristic and other working performance for GMM well. It is also able to describe the magnetostrictive elongation and output displacement for GMM rod and GMA respectively. Research results will provide a theoretical basis for solving magnetic hysteresis, working precision, and eddy current heating for GMA fundamentally.

Suggested Citation

  • Huifang Liu & Xingwei Sun & Quan Liang & Yuqing Bo, 2018. "Energy and magnetostriction analysis and nonlinear model of magnetostrictive actuator for precision drive," International Journal of Industrial and Systems Engineering, Inderscience Enterprises Ltd, vol. 29(3), pages 352-368.
    • Handle: RePEc:ids:ijisen:v:29:y:2018:i:3:p:352-368
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