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dc.creatorDobchuk, Jeffery Williamen_US
dc.date.accessioned2004-08-24T09:54:57Zen_US
dc.date.accessioned2013-01-04T04:54:11Z
dc.date.available2004-08-25T08:00:00Zen_US
dc.date.available2013-01-04T04:54:11Z
dc.date.created2004-08en_US
dc.date.issued2004-08-19en_US
dc.date.submittedAugust 2004en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-08242004-095457en_US
dc.description.abstractA common problem encountered in mobile hydraulics is the desire to automate motion control functions in a restricted-cost and restricted-sensor environment. In this thesis a solution to this problem is presented. A velocity control scheme based on a novel single component pressure compensated ow controller was developed and evaluated. The development of the controller involved solving several distinct technical challenges. First, a model reference control scheme was developed to provide control of the valve spool displacement for a particular electrohydraulic proportional valve. The control scheme had the effect of desensitizing the transient behaviour of the valve dynamics to changes in operating condition. Next, the pressure/flow relationship of the same valve was examined. A general approach for the mathematical characterization of this relationship was developed. This method was based on a modification of the so-called turbulent orifice equation. The general approach included a self-tuning algorithm. Next, the modified turbulent orifice equation was applied in conjunction with the model reference valve controller to create a single component pressure compensated flow control device. This required an inverse solution to the modified orifice equation. Finally, the kinematics of a specific single link hydraulically actuated mechanism were solved. Integration of the kinematic solution with the flow control device allowed for predictive velocity control of the single link mechanism.en_US
dc.language.isoen_USen_US
dc.subjectpredictive controlen_US
dc.subjectoff-highway equipmenten_US
dc.subjecthydraulicsen_US
dc.titleControl of a hydraulically actuated mechanism using a proportional valve and a linearizing feedforward controlleren_US
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineMechanical Engineeringen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophy (Ph.D.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberNikiforuk, Peter N.en_US
dc.contributor.committeeMemberFotouhi, Rezaen_US
dc.contributor.committeeMemberDolovich, Allan T.en_US
dc.contributor.committeeMemberCrowe, Trever G.en_US
dc.contributor.committeeMemberBurton, Richard T.en_US
dc.contributor.committeeMemberSchoenau, Greg J.en_US
dc.contributor.committeeMemberSilva, G.en_US


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