Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study
Loading...
Date
2021-09-24
Authors
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Altmetrics
Abstract
The transient behaviour of magnetorheological (MR) damper is a very important parameter affecting the performance of this technology in modern semi-actively controlled suspension systems. Currently, the transient behaviour of the MR damper is limited by dynamics of the MR fluid (MRF) itself. The significant part of MRF response time is a hydrodynamic response time which is connected with transient rheology and development of velocity profile in the slit gap. In this paper, the method for measuring the hydrodynamic response time of MRF operating in valve mode is presented. The hydrodynamic response time of MRF-132DG achieved value of 90 = 0.78 ms for H = 17.5 kA/m a value of 90 = 0.65 ms for H = 34 kA/m for given geometry of gap. The difference between model and experiment is lower in higher yield stresses of MRF.
Description
Keywords
Citation
IOP Conference Series: Materials Science and Engineering. 2021, vol. 1186, issue 1, p. 1-7.
https://iopscience.iop.org/article/10.1088/1757-899X/1186/1/012002
https://iopscience.iop.org/article/10.1088/1757-899X/1186/1/012002
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en