ISSN:
1741-2765
Keywords:
Electrorheological fluid
;
torque
;
current density
;
rotational speed
;
electric field
;
electrode gap
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The authors propose a device consisting of a rotating regulator within an electrorheological fluid (ERF), in which the rotational speed of the rotating body can be regulated by supplying an electric field. This new type of device with ERF is relevant to engineering applications and can play a role in braking as well as in rotation regulation. The ERF used here consists of a colloidal suspension of smectite particles in a solvent. The experimental conditions are fixed in a range of comparatively small rotational speed. The authors clarified the hydrodynamic and electrical effects of the shape of the rotating disk, the kind of solvent contained in the ERF, the temperature, the electrode gap and the electric field strength on the steady characteristics of the torque, the electric current density and the electric power to a rotational speed. From the torque and rotational speed data, empirical equations were derived using nondimensional parameters for the purpose of convenient engineering design. The authors also clarified the correlation between the hydrodynamic and steady electric characteristics of the device and the transient characteristics of torque, the electric current and the rotational speed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02325051
Permalink
