Electrorheological Fluids in Squeeze under AC and DC Excitation

摘要: This paper is concerned with an experimental investigation of the performance ER fluid in oscillatory squeeze-flow and a comparison results those predicted by quasi-steady theoretical model which rheological behaviour assumed to follow bi-viscous shears stress/shear rate characteristic. The sandwiched between two parallel plane electrodes, upper one stationary lower oscillating normal its plane. Of particular interest temporal variation force transmitted through response changes oscillation frequency amplitude level applied AC DC voltages. magnitude forces case seen be not only function voltage but also shape input waveform electrical excitation frequency. In all cases these are found smaller than corresponding case.