Experimental analysis of separately controlled multi-coils on the performance of magnetorheological absorber under impact loading

Zheng, J; Ouyang, Q; Li, Z; Li, Y; Wang, J

Experimental analysis of separately controlled multi-coils on the performance of magnetorheological absorber under impact loading

Zheng, J Ouyang, Q Li, Z Li, Y

Wang, J

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Publication Type:: Journal Article
Citation:: Journal of Intelligent Material Systems and Structures, 2016, 27 (7), pp. 887 - 897
Issue Date:: 2016-01-01

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Field	Value	Language
dc.contributor.author	Zheng, J	en_US
dc.contributor.author	Ouyang, Q	en_US
dc.contributor.author	Li, Z	en_US
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493	en_US
dc.contributor.author	Wang, J	en_US
dc.date.issued	2016-01-01	en_US
dc.identifier.citation	Journal of Intelligent Material Systems and Structures, 2016, 27 (7), pp. 887 - 897	en_US
dc.identifier.issn	1045-389X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37137
dc.description.abstract	© The Author(s) 2015. A magnetorheological absorber is capable of actively adapting any gun recoil condition by means of controlled Coulomb force. The objective of multi-coil magnetorheological absorber with individual input currents is to mitigate the peak force transferred to the buffer structure during bullet firing, and thus to increase the structural fatigue life. This article investigates various cases by applying random combinations of input currents to the magnetic coils. The impact tests were conducted by obtaining and analyzing the force, displacement, and velocity. As a reference, input currents with equivalent magnitude are considered statistically, in terms of average peak force and occurrence time. The experimental results show that separately controlled multi-coils contribute to the magnitude and occurrence time of peak force significantly. Furthermore, to reduce peak forces, a simple open-loop control strategy was proposed and validated effectively by the experimental results.	en_US
dc.relation.ispartof	Journal of Intelligent Material Systems and Structures	en_US
dc.relation.isbasedon	10.1177/1045389X15600902	en_US
dc.subject.classification	Materials	en_US
dc.title	Experimental analysis of separately controlled multi-coils on the performance of magnetorheological absorber under impact loading	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	27	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	27	en_US

Abstract:

© The Author(s) 2015. A magnetorheological absorber is capable of actively adapting any gun recoil condition by means of controlled Coulomb force. The objective of multi-coil magnetorheological absorber with individual input currents is to mitigate the peak force transferred to the buffer structure during bullet firing, and thus to increase the structural fatigue life. This article investigates various cases by applying random combinations of input currents to the magnetic coils. The impact tests were conducted by obtaining and analyzing the force, displacement, and velocity. As a reference, input currents with equivalent magnitude are considered statistically, in terms of average peak force and occurrence time. The experimental results show that separately controlled multi-coils contribute to the magnitude and occurrence time of peak force significantly. Furthermore, to reduce peak forces, a simple open-loop control strategy was proposed and validated effectively by the experimental results.

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http://hdl.handle.net/10453/37137