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Design Rules for High Damping in Mobile Hydraulic Systems
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
2013 (English)In: 13th Scandinavian International Conference on Fluid Power, Linköping University Electronic Press, 2013, 13-20 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper analyses the damping in pressure compensated closed centre mobile working hydraulic systems. Both rotational and linear loads are covered and the analysis applies to any type of pump controller. Only the outlet orifice in the directional valve will provide damping to a pressure compensated system. Design rules are proposed for how the system should be dimensioned in order to obtain a high damping. The volumes on each side of the load have a high impact on the damping. In case of a small volume on the inlet side, the damping becomes low. However, the most important thing is to design the outlet orifice area properly. There exists an optimal orifice dimension for maximized damping; both smaller and larger orifice areas give lower damping independently of the volumes. This paper presents a method to dimension the outlet orifice area and the load volumes in order to obtain a desired system damping. Experimental results, which confirm the theoretical expectations, are also presented. The conclusions are that it is possible to obtain a high damping contribution from the outlet orifice if the system is dimensioned correctly. However, the energy efficiency needs to be considered while improving the damping

Place, publisher, year, edition, pages
Linköping University Electronic Press, 2013. 13-20 p.
Series
Linköping Electronic Conference Proceedings, ISSN 1650-3686 (print), 1650-3740 (online) ; 92
Keyword [en]
Damping, compensator, outlet orifice, efficiency
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-100122DOI: 10.3384/ecp1392a2ISBN: 978-91-7519-572-8 (print)OAI: oai:DiVA.org:liu-100122DiVA: diva2:659818
Conference
13th Scandinavian International Conference on Fluid Power, June 3-5, 2013, Linköping, Sweden
Available from: 2013-10-28 Created: 2013-10-28 Last updated: 2016-02-19Bibliographically approved

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