Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Analysis of a Novel MR Rotary Brake with Permanent Magnet

영구자석을 이용한 새로운 MR 브레이크의 해석

  • 윤동원 (한국기계연구원 지능형 생산시스템 연구본부) ;
  • 박중호 (한국기계연구원 지능형 생산시스템 연구본부) ;
  • 손영수 (한국기계연구원 지능형 생산시스템 연구본부) ;
  • 박희창 (한국기계연구원 지능형 생산시스템 연구본부) ;
  • 박철훈 (한국기계연구원 지능형 생산시스템 연구본부)
  • Published : 2009.01.01
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Abstract

In this paper, a novel MR brake with permanent magnet is developed. This system consists of rotary disk, permanent magnet, spring and MR fluid. Permanent magnets are attached to the rotary disk and moves in the direction of radius. The magnets are linked to rotor axis by spring. As rotation speed increases, the magnets move outward from the center of the system by centrifugal force in the MR fluid. A proper design of stator or case makes the system have unique torque characteristics. The research is performed like following procedures. First, the electromagnetic characteristic of the system is analyzed using Maxwell. Next, torque is calculated using the results of the electromagnetic analysis. Finally, the performance of various types of the brake systems are investigated and compared with each other.

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References

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