Dynamic modeling of hydraulic power steering system with variable ratio rack and pinion gear

Zhang, N; Wang, M

Dynamic modeling of hydraulic power steering system with variable ratio rack and pinion gear

Zhang, N

Wang, M

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Publication Type:: Journal Article
Citation:: JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing, 2005, 48 (2 SPEC. ISS.), pp. 251 - 260
Issue Date:: 2005-06-01

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Field	Value	Language
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.contributor.author	Wang, M	en_US
dc.date.issued	2005-06-01	en_US
dc.identifier.citation	JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing, 2005, 48 (2 SPEC. ISS.), pp. 251 - 260	en_US
dc.identifier.issn	1344-7653	en_US
dc.identifier.uri	http://hdl.handle.net/10453/6173
dc.description.abstract	A comprehensive mathematical model of a typical hydraulic power steering system equipped with variable ratio rack and pinion gear is developed. The steering system's dynamic characteristics are investigated and its forced vibrations are compared with those obtained from a counterpart system with a constant ratio rack and pinion gear. The modeling details of the mechanism subsystem, hydraulic supply lines subsystem and the rotary spool valve subsystem are provided and included in the integrated steering system model. The numerical simulations are conducted to investigate the dynamics of the nonlinear parametric steering system. From the comparison between simulated results and the experimental ones, it is shown that the model accurately integrates the boost characteristics of the rotary spool valve which is the key component of hydraulic power steering system. The variable ratio rack-pinion gear behaviors significantly differently from its constant ratio counterpart does. It significantly affects not only the system natural frequencies but also reduces vibrations under constant rate and ramp torque steering inputs. The developed steering model produces valid predictions of the system's behavior and therfore could assist engineers in the design and analysis of integrated steering systems.	en_US
dc.relation	http://purl.org/au-research/grants/arc/C00107787
dc.relation.ispartof	JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing	en_US
dc.relation.isbasedon	10.1299/jsmec.48.251	en_US
dc.subject.classification	Mechanical Engineering & Transports	en_US
dc.subject.classification	Industrial Engineering & Automation	en_US
dc.title	Dynamic modeling of hydraulic power steering system with variable ratio rack and pinion gear	en_US
dc.type	Journal Article
utslib.citation.volume	2 SPEC. ISS.	en_US
utslib.citation.volume	48	en_US
utslib.for	0910 Manufacturing Engineering	en_US
utslib.for	0913 Mechanical 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	open_access
pubs.issue	2 SPEC. ISS.	en_US
pubs.publication-status	Published	en_US
pubs.volume	48	en_US

Abstract:

A comprehensive mathematical model of a typical hydraulic power steering system equipped with variable ratio rack and pinion gear is developed. The steering system's dynamic characteristics are investigated and its forced vibrations are compared with those obtained from a counterpart system with a constant ratio rack and pinion gear. The modeling details of the mechanism subsystem, hydraulic supply lines subsystem and the rotary spool valve subsystem are provided and included in the integrated steering system model. The numerical simulations are conducted to investigate the dynamics of the nonlinear parametric steering system. From the comparison between simulated results and the experimental ones, it is shown that the model accurately integrates the boost characteristics of the rotary spool valve which is the key component of hydraulic power steering system. The variable ratio rack-pinion gear behaviors significantly differently from its constant ratio counterpart does. It significantly affects not only the system natural frequencies but also reduces vibrations under constant rate and ramp torque steering inputs. The developed steering model produces valid predictions of the system's behavior and therfore could assist engineers in the design and analysis of integrated steering systems.

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http://hdl.handle.net/10453/6173