Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Magnetic Circuit Design Methodology of MR CDC Dampers for Semi-Active Suspensions

반능동 서스펜션용 MR CDC 댐퍼의 자기회로 설계기법

  • Park, Jae-Woo (Subdivision of Mechanical & Automotive Industry, Kyungnam College of Information & Technology) ;
  • Jung, Young-Dae (School of Mechanical Engineering, Yeungnam Univ.)
  • 박재우 (경남정보대학기계 자동차산업계열) ;
  • 정영대 (영남대학교 기계공학과)
  • Published : 2008.10.01
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Abstract

MR Fluid, one of functional fluids, is developed for the application to automobile products. MR CDC damper using MR fluid has following principles. When ar electric current is applied to the solenoid, apparent viscosity of MR fluid passing through the annular gap which acts as magnetic circuits varies directly as the intensity of the current. These devices have a simple structure and excellent lime response characteristics, emerging as the alternatives of the conventional semi-active suspension systems. In this study, a design procedure of the magnetic circuit through the solenoid fore and the flux ring functioning as a magnetic path is investigated so as to optimize the design and performance of MR CDC dampers for the vehicles. In addition, an operating point on the B-H curve, the magnetization according to the variation in the annular gap, the pole piece width and the density of MR fluid are studied to design the optimal piston head within the restrained dimension range.

Keywords

References

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