In this article the torque characteristic of a permanent magnet magnetorheological (MR) clutch is investigated focusing on the influence of temperature. An experimental campaign was carried out on a test bench equipped with a caulk oxen, heating up to 80◦C. The torque characteristic was measured monitoring both fluid and clutch case temperature. Torque data were processed and well fitted by a formula where the temperature dependence is expressed by Arrhenius law. In particular, a loss of transmitted torque for increasing temperature was found. An approximate dependence of MR fluid shear stress on temperature, useful for similar devices, was also obtained.
Autori interni: | |
Autori: | Bucchi F.; Forte P.; Frendo F. |
Titolo: | Temperature Effect on the Torque Characteristic of a Magnetorheological Clutch |
Anno del prodotto: | 2015 |
Abstract: | In this article the torque characteristic of a permanent magnet magnetorheological (MR) clutch is investigated focusing on the influence of temperature. An experimental campaign was carried out on a test bench equipped with a caulk oxen, heating up to 80◦C. The torque characteristic was measured monitoring both fluid and clutch case temperature. Torque data were processed and well fitted by a formula where the temperature dependence is expressed by Arrhenius law. In particular, a loss of transmitted torque for increasing temperature was found. An approximate dependence of MR fluid shear stress on temperature, useful for similar devices, was also obtained. |
Digital Object Identifier (DOI): | 10.1080/15376494.2014.910581 |
Appare nelle tipologie: | 1.1 Articolo in rivista |