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KUBÍK, M. ŠEBESTA, K.
Original Title
Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study
Type
conference paper
Language
English
Original 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 τ90 = 0.78 ms for H = 17.5 kA/m a value of τ90 = 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.
Keywords
magnetorheological fluid
Authors
KUBÍK, M.; ŠEBESTA, K.
Released
24. 9. 2021
Publisher
IOP Publishing
ISBN
1757-899X
Periodical
IOP Conference Series: Materials Science and Engineering
Year of study
1186
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
7
Pages count
URL
https://iopscience.iop.org/article/10.1088/1757-899X/1186/1/012002
Full text in the Digital Library
http://hdl.handle.net/11012/201778
BibTex
@inproceedings{BUT172576, author="Michal {Kubík} and Karel {Šebesta}", title="Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study", booktitle="World Symposium on Smart Materials and Applications (WSSMA 2021) 16th-18th July 2021, Bangkok, Thailand", year="2021", journal="IOP Conference Series: Materials Science and Engineering", volume="1186", number="1", pages="1--7", publisher="IOP Publishing", doi="10.1088/1757-899X/1186/1/012002", issn="1757-899X", url="https://iopscience.iop.org/article/10.1088/1757-899X/1186/1/012002" }