MANYETOREOLOJİK (MR) AKIŞKANLARIN KAPALI DURUM VİSKOZİTESİNİN İNCELENMESİ

Year 2019, Volume: 31 Issue: 3, 232 - 237, 01.09.2019

Seval Genç

https://doi.org/10.7240/jeps.521082

Abstract

Bu çalışmada silikon yağ ve demir (Fe)
bazlı manyetoreolojik (MR) akışkanlarının kapalı durum (off-state) viskozite
özellikleri incelenmiştir. Farklı oranlardaki manyetik faz miktarı (hacmen %5,
10, 20, 30 ve 40) ile hazırlanan MR akışkanlarının rölatif viskozitesinin (η_rel)
– manyetik faz miktarına (φ) olan ilişkisi deneysel olarak tespit edilmiştir. Elde
edilen veriler Mooney ve Krieger-Dougherty modelleriyle karşılaştırılmıştır.
Deneysel sonuçlar MR akışkanın viskozitesinin manyetik faz miktarı ile önemli
ölçüde arttığını göstermiştir. Ayrıca viskozite profilleri Mooney modeli ile
uyumlu bulunmuştur. 

Keywords

Manyetoreolojik akışkanlar, viskozite

INVESTIGATION OF OFF-STATE VISCOSITY OF MAGNETORHEOLOGICAL (MR) FLUIDS

Abstract

In this study the off-state viscosity
characteristics of silicone oil and iron (Fe) based  magnetorheological (MR) fluids were
investigated. The relationship between relative viscosity (η_rel) and
the amount of magnetic phase (φ) of MR fluids that were prepared with
various  concentrations of magnetic phase
(5, 10, 20, 30, 40 vol%) was determined experimentally. The data obtained from
experimental study were compared with Mooney and Krieger-Dougherty models. The
experimental results showed that the viscosity had a shear thinning behavior
and it increased significantly with increasing magnetic phase. Besides, the
viscosity profile was found to be in good agreement with Mooney model. 

Keywords

Magnetorheological Fluids, viscosity

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