Hydropneumatic semi-active suspension system with continuously variable damping

dc.contributor.authorVosloo, Andre Gerhard
dc.contributor.authorEls, Pieter Schalk
dc.contributor.emailschalk.els@up.ac.zaen_ZA
dc.date.accessioned2021-09-03T06:29:00Z
dc.date.available2021-09-03T06:29:00Z
dc.date.issued2020
dc.description.abstractA hydropneumatic semi-active suspension system for an off-road vehicle, that can switch between two discrete damping characteristics as well as two discrete spring characteristics, has been successfully developed and implemented previously. This paper investigates the feasibility of expanding the concept to include four discrete spring characteristics as well as continuously variable damping by controlling two proportional solenoid valves, which can variably restrict flow paths to two accumulators. Spring, damping and response time characteristics are determined experimentally, modelled mathematically and validated with experimental measurements. The model incorporates an iterative solver to determine the flow rate through each valve and the change in the accumulator volumes. The accumulator model uses real gas theory, while also taking compressibility of the oil and heat transfer into account. Damping is calculated by a velocity and solenoid current dependent curve-fit model, parameterised from experimental data.en_ZA
dc.description.departmentMechanical and Aeronautical Engineeringen_ZA
dc.description.librarianhj2021en_ZA
dc.description.urihttps://www.inderscience.com/jhome.php?jcode=ijvsmten_ZA
dc.identifier.citationVosloo, A.G. & Els, P.S. 2020, 'Hydropneumatic semi-active suspension system with continuously variable damping', International Journal of Vehicle Systems Modelling and Testing, vol. 14, no. 4, pp. 246-268.en_ZA
dc.identifier.issn1745-6436 (print)
dc.identifier.issn1745-6444 (online)
dc.identifier.other10.1504/IJVSMT.2020.114979
dc.identifier.urihttp://hdl.handle.net/2263/81635
dc.language.isoenen_ZA
dc.publisherInderscienceen_ZA
dc.rights© 2020 Inderscience Enterprises Ltd.en_ZA
dc.subjectSemi-active suspensionen_ZA
dc.subjectHydropneumaticen_ZA
dc.subjectContinuously variable dampingen_ZA
dc.subjectAccumulatoren_ZA
dc.subjectModelen_ZA
dc.subjectFlow spliten_ZA
dc.subjectReal gas modelen_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-04
dc.subject.otherSDG-04: Quality education
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-11
dc.subject.otherSDG-11: Sustainable cities and communities
dc.subject.otherEngineering, built environment and information technology articles SDG-12
dc.subject.otherSDG-12: Responsible consumption and production
dc.titleHydropneumatic semi-active suspension system with continuously variable dampingen_ZA
dc.typePostprint Articleen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Vosloo_Hydropneumatic_2020.pdf
Size:
1.87 MB
Format:
Adobe Portable Document Format
Description:
Postprint Article

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description: