Synthesis and characterization of cost effective and eco-friendly magneto rheological fluid for aerospace applications

Abstract

The magnetorheological fluid is field dependent fluid which changes its rheological characteristics under the influence of external magnetic field. Being one of the critically investigating smart material in the field of rheology, the fluid finds its application in wide range of mechanical engineering. In this study two samples were prepared using a carrier fluid as the blend of silicon oil and flex seed oil with a magnetic particles i.e. electrolytic iron powder with a weight of 25gms. The prepared samples and a commercially available MR fluid were characterised using magneto rheometer and also the fluids were subjected to experimental simulation and the performance of synthesized organic based MR fluid was recorded and compared to commercially available MR fluid (ARUS). It was observed that the samples so prepared gives a healthy competition to commercially available MR fluid, hence in order to enhance the performance the composition of magnetic particles can be increased. The variation of viscosity with respect to shear rate is observed at different current values like 0A, 0.5A, 1A, 1.5A and 2A and it is comparable with standard oil. The variation of shear stress with respect to shear rate is observed at different current values like 0A, 0.5A, 1A, 1.5A and 2A and is comparable with standard oil. Initial yield strength of 40 Pa is observed for the synthesised fluid.