Transient behavior of compressed magnetorheological brake excited by step currents

Abstract Transient behavior of a magnetorheological brake excited by step currents under compression-shear mode has been experimentally studied. The results show that the amplitude of the applied current had little effect on the rising time of transient torque, while the rising time was significantl...

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Autores principales:	Hongyun Wang, Cheng Bi, Yongju Zhang, Axiang Ji, Pengyuan Qiu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/baddce38a23d4a0d85338259438f43c8
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spelling	oai:doaj.org-article:baddce38a23d4a0d85338259438f43c82021-12-02T17:52:12ZTransient behavior of compressed magnetorheological brake excited by step currents10.1038/s41598-021-91836-62045-2322https://doaj.org/article/baddce38a23d4a0d85338259438f43c82021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91836-6https://doaj.org/toc/2045-2322Abstract Transient behavior of a magnetorheological brake excited by step currents under compression-shear mode has been experimentally studied. The results show that the amplitude of the applied current had little effect on the rising time of transient torque, while the rising time was significantly affected by the rotational speed, the compressive speed and the compressive strain position. The falling time of transient torque was independent of the amplitude of the applied current, the compressive speed and the compressive strain position, and it was affected by the rotational speed. The falling time of the transient torque was much shorter than the rising time by a step current. The transient process of MR brake applied as a step current was different from a stable process pre-applied at constant current in different particle chain structure forming processes. In addition, the compressive processes applied in one step current and randomly on/off current were compared and experimentally verified: the particle chains in two processes both experienced the same evolutionary of transient torque. The results achieved in this study should be properly considered in the design and control of magnetorheological brake under compression-shear mode.Hongyun WangCheng BiYongju ZhangAxiang JiPengyuan QiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hongyun Wang Cheng Bi Yongju Zhang Axiang Ji Pengyuan Qiu Transient behavior of compressed magnetorheological brake excited by step currents
description	Abstract Transient behavior of a magnetorheological brake excited by step currents under compression-shear mode has been experimentally studied. The results show that the amplitude of the applied current had little effect on the rising time of transient torque, while the rising time was significantly affected by the rotational speed, the compressive speed and the compressive strain position. The falling time of transient torque was independent of the amplitude of the applied current, the compressive speed and the compressive strain position, and it was affected by the rotational speed. The falling time of the transient torque was much shorter than the rising time by a step current. The transient process of MR brake applied as a step current was different from a stable process pre-applied at constant current in different particle chain structure forming processes. In addition, the compressive processes applied in one step current and randomly on/off current were compared and experimentally verified: the particle chains in two processes both experienced the same evolutionary of transient torque. The results achieved in this study should be properly considered in the design and control of magnetorheological brake under compression-shear mode.
format	article
author	Hongyun Wang Cheng Bi Yongju Zhang Axiang Ji Pengyuan Qiu
author_facet	Hongyun Wang Cheng Bi Yongju Zhang Axiang Ji Pengyuan Qiu
author_sort	Hongyun Wang
title	Transient behavior of compressed magnetorheological brake excited by step currents
title_short	Transient behavior of compressed magnetorheological brake excited by step currents
title_full	Transient behavior of compressed magnetorheological brake excited by step currents
title_fullStr	Transient behavior of compressed magnetorheological brake excited by step currents
title_full_unstemmed	Transient behavior of compressed magnetorheological brake excited by step currents
title_sort	transient behavior of compressed magnetorheological brake excited by step currents
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/baddce38a23d4a0d85338259438f43c8
work_keys_str_mv	AT hongyunwang transientbehaviorofcompressedmagnetorheologicalbrakeexcitedbystepcurrents AT chengbi transientbehaviorofcompressedmagnetorheologicalbrakeexcitedbystepcurrents AT yongjuzhang transientbehaviorofcompressedmagnetorheologicalbrakeexcitedbystepcurrents AT axiangji transientbehaviorofcompressedmagnetorheologicalbrakeexcitedbystepcurrents AT pengyuanqiu transientbehaviorofcompressedmagnetorheologicalbrakeexcitedbystepcurrents
_version_	1718379250504957952

Transient behavior of compressed magnetorheological brake excited by step currents

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