Analysis of a magnetorheological damper incorporating temperature dependence Online publication date: Thu, 16-Oct-2014
by Nicholas L. Wilson; Norman M. Wereley; Wei Hu; Gregory J. Hiemenz
International Journal of Vehicle Design (IJVD), Vol. 63, No. 2/3, 2013
Abstract: Aside from external environmental heating, a magnetorheological (MR) damper may internally self-heat due to both resistive heating by the electromagnetic coil and to a greater extent, by dissipating mechanical energy into thermal energy. Temperature can significantly alter damper behaviour, as the fluid viscosity and accumulator gas pressure are highly dependent on temperature. Therefore, to improve the understanding of the behaviour of a linear stroke MR damper, a damper designed for a ground vehicle seat suspension, its performance is characterised over temperatures ranging from 0 to 100°C. A hydro-mechanical analysis is used to represent MR damper behaviour when it is subjected to large temperature perturbations and captures contributions from fluid viscosity, fluid inertia and pneumatic compressibility. The effect of damper self-heating on the identified model parameters is presented and the connection of these parameters to physical properties is also discussed.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Vehicle Design (IJVD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook