Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on Design and Characteristics of Linear Magnetostrictive Actuator Using Terfenol-D

Terfenol-D를 이용한 선형 자기변형 구동기의 설계 및 특성 연구

  • 임채욱 (한국기계연구원 구조연구부) ;
  • 정태영 (한국기계연구원 구조연구부) ;
  • 문석준 (한국기계연구원 구조연구부) ;
  • 김병현 (한국기계연구원 구조연구부)
  • Published : 2003.04.01
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Abstract

Terfenol-D is one of magnetostrictive materials which have the property of converting the energy in magnetic fields into mechanical movement and vice versa. We designed and fabricated a linear magnetostrictive actuator using Terfenol-D. It has 25 mm diameter and 100 mm long. To grasp the characteristics of it, a series of tests were performed in the range of 50 Hz below. Induced-strain actuation displacements of the actuator measured by test and predicted by magnetic analysis agreed well. And blocked forces according to the input currents were estimated from the testing results. Modelling method representing the exerting force of a linear magnetostrictive actuator was confirmed through some testing results.

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References

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