A rotary variable admittance device and its application in vehicle seat suspension vibration control

Ning, D; Sun, S; Yu, J; Zheng, M; Du, H; Zhang, N; Li, W

A rotary variable admittance device and its application in vehicle seat suspension vibration control

Ning, D Sun, S Yu, J Zheng, M Du, H Zhang, N

Li, W

Permalink

Publication Type:: Journal Article
Citation:: Journal of the Franklin Institute, 2019, 356 (14), pp. 7873 - 7895
Issue Date:: 2019-09-01

Closed Access

	Filename	Description	Size
	1-s2.0-S0016003219302637-main.pdf	Published Version	5.59 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Ning, D	en_US
dc.contributor.author	Sun, S	en_US
dc.contributor.author	Yu, J	en_US
dc.contributor.author	Zheng, M	en_US
dc.contributor.author	Du, H	en_US
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.contributor.author	Li, W	en_US
dc.date.issued	2019-09-01	en_US
dc.identifier.citation	Journal of the Franklin Institute, 2019, 356 (14), pp. 7873 - 7895	en_US
dc.identifier.issn	0016-0032	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138090
dc.description.abstract	© 2019 The Franklin Institute In this paper, a novel semi-active variable admittance (VA) concept is proposed, and a seat suspension prototype with a magnetorheological fluid damper based rotary VA device is designed, manufactured, and experimentally validated. The conventional inerter with a single flywheel has a constant inertance, which can effectively improve the suspension performance by being integrated into a mechanical network with springs and dampers. The proposed rotary VA device comprises a gear reducer, two flywheels and a variable damping (VD) device which is used to connect the two flywheels. With carefully designing, the rotary VA device is compacted and is similar with a VD device in size. The rotary VA device is installed in the centre of a seat suspension's scissors structure to form a VA seat suspension. According to the test results, the equivalent inertance of the seat suspension can vary from 11.3 Kg–76.6 Kg with a 3 Hz frequency and 5 mm amplitude sinusoidal movement by changing the current from 0 A–1 A. By analysing the system characteristics, a hybrid controller with two acceleration feedbacks is proposed. Thereafter, the seat suspension and controller are validated in experiments by comparing the performance with a conventional passive seat suspension. The random vibration test shows the excellent performance of the proposed seat suspension; the frequency weighted root mean square acceleration of the seat is reduced by 43.6%, which indicates a great improvement of the ride comfort. The VA device shows great prospect in the suspension application.	en_US
dc.relation.ispartof	Journal of the Franklin Institute	en_US
dc.relation.isbasedon	10.1016/j.jfranklin.2019.04.015	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Industrial Engineering & Automation	en_US
dc.title	A rotary variable admittance device and its application in vehicle seat suspension vibration control	en_US
dc.type	Journal Article
utslib.citation.volume	14	en_US
utslib.citation.volume	356	en_US
utslib.for	0102 Applied Mathematics	en_US
utslib.for	0906 Electrical and Electronic 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 Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
pubs.issue	14	en_US
pubs.publication-status	Published	en_US
pubs.volume	356	en_US

Abstract:

© 2019 The Franklin Institute In this paper, a novel semi-active variable admittance (VA) concept is proposed, and a seat suspension prototype with a magnetorheological fluid damper based rotary VA device is designed, manufactured, and experimentally validated. The conventional inerter with a single flywheel has a constant inertance, which can effectively improve the suspension performance by being integrated into a mechanical network with springs and dampers. The proposed rotary VA device comprises a gear reducer, two flywheels and a variable damping (VD) device which is used to connect the two flywheels. With carefully designing, the rotary VA device is compacted and is similar with a VD device in size. The rotary VA device is installed in the centre of a seat suspension's scissors structure to form a VA seat suspension. According to the test results, the equivalent inertance of the seat suspension can vary from 11.3 Kg–76.6 Kg with a 3 Hz frequency and 5 mm amplitude sinusoidal movement by changing the current from 0 A–1 A. By analysing the system characteristics, a hybrid controller with two acceleration feedbacks is proposed. Thereafter, the seat suspension and controller are validated in experiments by comparing the performance with a conventional passive seat suspension. The random vibration test shows the excellent performance of the proposed seat suspension; the frequency weighted root mean square acceleration of the seat is reduced by 43.6%, which indicates a great improvement of the ride comfort. The VA device shows great prospect in the suspension application.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/138090