Proactive fault finding in a 4/3-way direction control valve of a high pressure hydraulic system using the bond graph method with digital simulation

Athanasatos, P; Costopoulos, T

dc.contributor.author	Athanasatos, P	en
dc.contributor.author	Costopoulos, T	en
dc.date.accessioned	2014-03-01T02:12:04Z
dc.date.available	2014-03-01T02:12:04Z
dc.date.issued	2012	en
dc.identifier.issn	0094114X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29999
dc.subject	Bond graphs	en
dc.subject	Industrial hydraulic system	en
dc.subject	Modeling and simulation	en
dc.subject	Proactive fault diagnosis	en
dc.subject.other	Bond graph	en
dc.subject.other	Bond graph method	en
dc.subject.other	Bond graph model	en
dc.subject.other	Digital simulation	en
dc.subject.other	Direction control	en
dc.subject.other	High pressure	en
dc.subject.other	Hydraulic cylinders	en
dc.subject.other	Hydraulic system	en
dc.subject.other	Industrial hydraulics	en
dc.subject.other	Long duration	en
dc.subject.other	Maximum velocity	en
dc.subject.other	Modeling and simulation	en
dc.subject.other	Motion profile	en
dc.subject.other	Oscillation amplitude	en
dc.subject.other	Proactive fault	en
dc.subject.other	Residual pressures	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electric fault currents	en
dc.subject.other	Graph theory	en
dc.subject.other	Reels	en
dc.subject.other	Hydraulic equipment	en
dc.title	Proactive fault finding in a 4/3-way direction control valve of a high pressure hydraulic system using the bond graph method with digital simulation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.mechmachtheory.2011.11.018	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.mechmachtheory.2011.11.018	en
heal.publicationDate	2012	en
heal.abstract	A bond graph model has been developed in this paper concerning a high pressure industrial hydraulic system. The accuracy of the bond graph model was verified by comparing its response to the response of an actual hydraulic system and the correlation of these results is high concerning the shape, magnitude and response times. Three different tests were conducted, depending on the motion profile of the valve spool, from which an important conclusion drawn is that a long duration in the valve spool return motion has the most noticeable effect on the maximum vertical travel of the load as it significantly reduces the load oscillation amplitude after the load has reached its topmost position. What follows is an increase of the residual pressure in the hydraulic cylinder top chamber with a lesser effect on the load maximum velocity. The results of this work are used for proactive fault finding in cases of valve spool malfunctions, particularly anomalies during the valve spool motion and can be used to optimize the valve spool motion profile. © 2011 Elsevier Ltd. All Rights Reserved.. All rights reserved.	en
heal.journalName	Mechanism and Machine Theory	en
dc.identifier.doi	10.1016/j.mechmachtheory.2011.11.018	en
dc.identifier.volume	50	en
dc.identifier.spage	64	en
dc.identifier.epage	89	en