The transient response of magnetorheological actuator/ fluid in shear mode on the rapid change of magnetic field: effect of shear rate

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU145325" target="_blank" >RIV/00216305:26210/22:PU145325 - isvavai.cz</a>

Result on the web

<a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9899179" target="_blank" >https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9899179</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The transient response of magnetorheological actuator/ fluid in shear mode on the rapid change of magnetic field: effect of shear rate

Original language description

The semi-active (S/A) control can be easily applied to the magnetorheological (MR) actuators. The S/A control with MR actuator exhibits a significant improvement of suspension systems performance. However, the performance of the S/A control is significantly influenced by the transient response (response time) of the actuator. The currently published designs of MR damper achieved great transient behaviour (response time roughly 1.2 ms). It can be stated that the response time of MR fluid itself is probably close to the response time of the current designs of the MR actuator. The response time of MR fluid can be divided into (i) hydrodynamic response time, (ii) particle structure development response time, and (iii) rheological response time. In our research, we experimentally determined the rheological response time of MR fluid and measured the effect of shear rate. We developed a unique shear mode rheometer that allows rapid change of magnetic field in the gap. The response time of MRF 132-DG was determined based on the transfer function between the measured magnetic field and shear stress in MR fluid. The rheological response time (63.2 %) achieved a value of 0.66 ms for magnetic flux intensity of 12.5 kA/m and shear rate 40 s-1. As the shear rate increases, the response time decreases.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GJ20-23261Y" target="_blank" >GJ20-23261Y: Study of the magnetorheological fluid response time</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ACTUATOR 2022; International Conference and Exhibition on New Actuator Systems and Applications

ISBN

978-3-8007-5894-4

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

105-108

Publisher name

VDE

Place of publication

neuveden

Event location

Mannheim

Event date

Jun 29, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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