Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on Bingham Characteristics of Particle Dispersive Electro-Rheological Fluid

입자분산계 ER유체의 빙햄특성 고찰

  • 장성철 (경남대학교 대학원) ;
  • 이선의 (경남대학교 대학원) ;
  • 김태형 (경남정보대학 기계설계과) ;
  • 박종근 (경남대학교 기계자동화공학부) ;
  • 염만오 (경남대학교 기계자동화공학부)
  • Published : 2000.10.01
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Abstract

Electrorheological(ER) effect on the dispersive system of polarizable fine powder/dielectric oil has been investigated. The electrical and rheological properties of zeolite and starch based ER fluid were reported. The ER fluids were constructed by mixing zeolite and starch power with two different dielectric oils. Yield stress of the fluids were measured on the couette cell type rheometer as a function of electric fields, particle concetrations, and temperatures. The electric field is applied by high voltage DC power supply. The outer cup is connected to positive electrode(+) and the bob becomes ground(-). And the temperatures the viscosity(or shear stress) versus shear rates were measured. In this experiment shear rates were increased from 0 to $200s^{-1}$ in 2 minutes.

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