In this research, the influence of additives on rheological and sedimentary properties magnetorheological fluid (MRF) was tested analyzed. The were stearic acid, sodium dodecyl sulfate (SDS), their mixture, respectively. MRF composed carbonyl iron particle, silicone oil, liquid paraffin, graphite bentonite, SDS. results indicated that mainly influenced by mass fraction particle. When fractions ...

We proposed a new transmission to control the flow difference between left and right pumps in total artificial hearts. The consists of input output shafts, magnetorheological fluid, electromagnets with adjustable current position. A motor rotates shaft transmission. transfers torque that decelerated rotational speed according resistance fluid. First, we measured when load is 5 mNm, was 2000 rpm...

Abstract Magnetorheological (MR) fluids are classified as smart materials whose viscoplastic characteristics change under the magnetic field. They widely applied for dynamic energy dissipation due to their rapid thickening external In this work, core–shell suspension of superparamagnetic iron oxide-based nanoparticles was synthesized and dispersed in silicone oil. Much effort has been made prep...

Inverted magnetorheological (MR) polishing device mainly use a magnetic sealing ring to collect fluid. This collection method wears the wheel surface of wheel, affects accuracy and introduces machining error. In order reduce this wear improve recovery efficiency, new type collector using an air seal is proposed in paper. Furthermore, testing six factors three-level orthogonal test table used st...

Finish polishing of optics with magnetic media has evolved extensively over the past decade. Of the approaches conceived during this time, the most recently developed process is called magnetorheological finishing (MRF). In MRF, a magnetic field stiffens a fluid suspension in contact with a workpiece. The workpiece is mounted on the rotating spindle of a computer-numerically-controlled (CNC) ma...

This is part one of the paper on conceptual design of an engine valve. This paper describes the background and the need of an engine valve for an internal combustion engine. The present state of the engine valve technology and the innovations incorporated in its design has been described. The paper presents the conceptualization of an innovative valve train aiming at lesser number of components...

We present results concerning the synthesis of FexCo1-x (0 < x 1) alloy nanoparticles (NPs) with different compositions by chemical reduction technique and subsequent structural (XRD patterns), morphological (TEM images) magnetic (VSM magnetometry) characterization. have got excellent quality NPs in cubic bcc structure showing a room temperature magnetization as high 235 emu/g for Fe66Co34 comp...