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dc.contributor.advisorBurton, Richard T.en_US
dc.creatorWiens, Travis Kenten_US
dc.date.accessioned2004-08-31T10:03:06Zen_US
dc.date.accessioned2013-01-04T04:55:54Z
dc.date.available2005-08-31T08:00:00Zen_US
dc.date.available2013-01-04T04:55:54Z
dc.date.created2004-08en_US
dc.date.issued2004-08-30en_US
dc.date.submittedAugust 2004en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-08312004-100306en_US
dc.description.abstractThis thesis proposes a new type of hydraulic valve: an adjustable-ratio flow divider. This valve attempts to split one input flow into two output flows in a predetermined ratio, independent of load pressure or total flow. The valve uses a two dimensional structure to form a two-stage valve with only one moving part; the pilot stage uses the spool s rotary position, and the main stage uses its linear position. This arrangement allows for a cheaper, simpler valve with smaller volumes (translating into faster response). The ratio of outlet flows can be set on the fly by the angular position of the spool, driven by a stepper motor or other low-power input. In order to evaluate the initial feasibility of the concept, steady state and dynamic models were developed and the effects of the physical parameters were studied. Two non-linear non-derivative multiobjective optimization strategies were used to determine the optimum parameters for a prototype. Finally, the prototype s performance was experimentally examined and appears to work as expected.en_US
dc.language.isoen_USen_US
dc.subjecthydraulicen_US
dc.subjectflow controlen_US
dc.subjectflow divideren_US
dc.subjectfluid poweren_US
dc.subjectvalveen_US
dc.subjecthydraulicsen_US
dc.titleAn adjustable-ratio flow dividing hydraulic valveen_US
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineMechanical Engineeringen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberSumner, Daviden_US
dc.contributor.committeeMemberSchoenau, Greg J.en_US
dc.contributor.committeeMemberRoberge, Martinen_US
dc.contributor.committeeMemberHabibi, Saeid R.en_US


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