TITLE

KARBONİL DEMİR VE MANYETİT ESASLI MANYETOREOLOJİK SIVILARIN SÖNÜMLEME PERFORMANSI VE KATKI MADDESİ OLARAK SİLİKA DUMANI KULLANIMI

AUTHOR(S)
ERGİN, Turgay; ALTIPARMAK, Duran
PUB. DATE
December 2013
SOURCE
Journal of the Faculty of Engineering & Architecture of Gazi Uni;Dec2013, Vol. 28 Issue 4, p695
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Magnetorheological (MR) fluids are magnetic field dependent fluids used in the semi-active damping systems. MR fluids usually consist of magnetic particles dispersed in a carrier liquid. In this work, five different carbonyl iron and magnetite-based MR fluids were prepared with various iron concentrations in silicone oil. The fumed silica was used as an additive to reduce sedimentation of the carbonyl iron particles. Performance of the MR fluids was tested by using the prototype of MR damper designed and manufactured in accordance with the dimensions of a passenger car's shock absorber. Sedimentation stability which affects the performance of the MR fluids was also observed. The effects of particle type, concentration and fumed silica on the damping performance of the MR fluids were evaluated. The results showed that when the current is increased up to 2 amps, the damping force is increased by 40% for the MR fluid containing 40% carbonyl iron and 2% fumed silica by mass.
ACCESSION #
93433009

 

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