Modelling and characteristic analysis of tri-Axle trucks with hydraulically interconnected suspensions

Ding, F; Han, X; Luo, Z; Zhang, N

Modelling and characteristic analysis of tri-Axle trucks with hydraulically interconnected suspensions

Ding, F Han, X Luo, Z

Zhang, N

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Publication Type:: Journal Article
Citation:: Vehicle System Dynamics, 2012, 50 (12), pp. 1877 - 1904
Issue Date:: 2012-12-01

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Field	Value	Language
dc.contributor.author	Ding, F	en_US
dc.contributor.author	Han, X	en_US
dc.contributor.author	Luo, Z https://orcid.org/0000-0002-6953-3986	en_US
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.date.issued	2012-12-01	en_US
dc.identifier.citation	Vehicle System Dynamics, 2012, 50 (12), pp. 1877 - 1904	en_US
dc.identifier.issn	0042-3114	en_US
dc.identifier.uri	http://hdl.handle.net/10453/31662
dc.description.abstract	In this paper, a new hydraulically interconnected suspension (HIS) system is proposed for the implementation of a resistance control for the pitch and bounce modes of tri-Axle heavy trucks. A lumped-mass half-truck model is established using the free-body diagram method. The equations of motion of a mechanical and hydraulic coupled system are developed by incorporating the hydraulic strut forces into the mechanical subsystem as externally applied forces. The transfer matrix method (TMM) is used to evaluate the impedance matrix of the hydraulic subsystem consisting of models of fluid pipes, damper valves, accumulators, and three-way junctions. The TMM is further applied to find the quantitative relationships between the hydraulic strut forces and boundary flow of the mechanical-fluid interactive subsystem. The modal analysis method is employed to perform the vibration analysis between the trucks with the conventional suspension and the proposed HIS. Comparison analysis focuses on free vibration with identified eigenvalues and eigenvectors, isolation vibration capacity, and force vibration in terms of the power spectrum density responses. The obtained results show the effectiveness of the proposed HIS system in reducing the pitch motion of sprung mass and simultaneously maintaining the ride comfort. The pitch stiffness is increased while the bounce stiffness is slightly softened. The peak values of sprung mass and wheel hop motions are greatly reduced, and the vibration decay rate of sprung mass is also significantly increased. © 2012 Copyright Taylor and Francis Group, LLC.	en_US
dc.relation.ispartof	Vehicle System Dynamics	en_US
dc.relation.isbasedon	10.1080/00423114.2012.699074	en_US
dc.subject.classification	Automobile Design & Engineering	en_US
dc.title	Modelling and characteristic analysis of tri-Axle trucks with hydraulically interconnected suspensions	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	50	en_US
utslib.for	0902 Automotive Engineering	en_US
utslib.for	01 Mathematical Sciences	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 Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access
pubs.issue	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	50	en_US

Abstract:

In this paper, a new hydraulically interconnected suspension (HIS) system is proposed for the implementation of a resistance control for the pitch and bounce modes of tri-Axle heavy trucks. A lumped-mass half-truck model is established using the free-body diagram method. The equations of motion of a mechanical and hydraulic coupled system are developed by incorporating the hydraulic strut forces into the mechanical subsystem as externally applied forces. The transfer matrix method (TMM) is used to evaluate the impedance matrix of the hydraulic subsystem consisting of models of fluid pipes, damper valves, accumulators, and three-way junctions. The TMM is further applied to find the quantitative relationships between the hydraulic strut forces and boundary flow of the mechanical-fluid interactive subsystem. The modal analysis method is employed to perform the vibration analysis between the trucks with the conventional suspension and the proposed HIS. Comparison analysis focuses on free vibration with identified eigenvalues and eigenvectors, isolation vibration capacity, and force vibration in terms of the power spectrum density responses. The obtained results show the effectiveness of the proposed HIS system in reducing the pitch motion of sprung mass and simultaneously maintaining the ride comfort. The pitch stiffness is increased while the bounce stiffness is slightly softened. The peak values of sprung mass and wheel hop motions are greatly reduced, and the vibration decay rate of sprung mass is also significantly increased. © 2012 Copyright Taylor and Francis Group, LLC.

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http://hdl.handle.net/10453/31662