Transient Characteristics of Cylindrical Magneto-rheological Fluid Brakes

Abstract

The authors have been studying non-contact hybrid brakes combining eddy current brakes and magneto-rheological fluid brakes for use in brakes for aircraft wheel sections. In this study, the brake torque of a magneto-rheological fluid was measured and also the transient characteristics were measured and evaluated when the viscosity, particle concentration, particle size and temperature of the fluid were varied. As a result, it was determined that the weight ratio of the magneto-rheological fluid and the temperature change had no effect on the time constant, while the particle material and the viscosity influenced the time constant.