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Modelling and experimental validation of a nonlinear proportional solenoid pressure control valve
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-2315-0680
2016 (English)In: International Journal of Fluid Power, ISSN 1439-9776, Vol. 17, no 2, 90-101 p.Article in journal (Refereed) Published
Abstract [en]

This paper investigates the static and dynamic behaviour of a pressure control valve with nonlinear negative characteristics. The pressure control valve has both reducing and relieving capability and is actuated by a solenoid. The static characteristics have been measured over the entire working range, covering the dynamic response of the solenoid, as well as the complete valve. A model is proposed that considers the flow as a mix of laminar and turbulent flow and flow forces with a flow angle that varies with the stroke of the spool. The model shows good agreement with measurements. The investigations show that the flow forces decrease with higher flow rates as a result of a flow angle that tends to go towards a vertical angle. This results in an increase in pressure with flow during pressure reducing mode. A linear analysis is also presented, explaining this as a negative spring constant in the low frequency range. Stability is, however, maintained.

Place, publisher, year, edition, pages
2016. Vol. 17, no 2, 90-101 p.
Keyword [en]
Nonlinear modelling, solenoid, pressure control valve, linear analysis
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:liu:diva-130036DOI: 10.1080/14399776.2016.1141636OAI: oai:DiVA.org:liu-130036DiVA: diva2:946441
Available from: 2016-07-05 Created: 2016-07-05 Last updated: 2016-07-11

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Dell'Amico, AlessandroKrus, Petter
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