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dc.contributor.advisorManring, Noahen
dc.contributor.authorMehta, Viral, 1977-en_US
dc.date.issued2006eng
dc.date.submitted2006 Springen
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.en_US
dc.descriptionTitle from title screen of research.pdf file viewed on (February 28, 2007).en_US
dc.descriptionIncludes bibliographical references.en_US
dc.descriptionVita.en_US
dc.descriptionThesis (Ph.D.) University of Missouri-Columbia 2006.en_US
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Mechanical and aerospace engineering.en_US
dc.description.abstractThe main goal of this work is to reduce the disturbing noise generated by axial piston swash plate type hydrostatic pumps by attenuating the shaft torque variation. The analysis begins by deriving the equation of the shaft torque as a function of the average torque and the total number of pistons that are used within the rotating group. A swash plate control law is derived according to which if the swash plate is adjusted continuously, would give a constant shaft torque. In a second method, it is shown that with the use of an optimized index angle, the torque ripple amplitude for a tandem pump could be reduced by as much as 75%. The results from a Simulink® model of a nine piston pump with leakage and fluid compressibility effects support the analytical conclusions. It is also shown that there is a link between the torque ripple and flow ripple; hence the torque ripple attenuation results in the flow ripple attenuation too.en_US
dc.identifier.merlin.b57903220en_US
dc.identifier.oclc85444728en_US
dc.identifier.otherMehtaV-041906-D5101en_US
dc.identifier.urihttp://hdl.handle.net/10355/4380
dc.publisherUniversity of Missouri--Columbiaen_US
dc.relation.ispartof2006 Freely available dissertations (MU)en_US
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Dissertations. 2006 Dissertations
dc.subject.lcshHydrostaticsen_US
dc.subject.lcshReciprocating pumps -- Noiseen_US
dc.subject.lcshNoise controlen_US
dc.subject.lcshHydraulic machinery -- Noiseen_US
dc.titleTorque ripple attenuation for an axial piston swash plate type hydrostatic pump: noise considerationsen_US
dc.typeThesisen_US
thesis.degree.disciplineMechanical and aerospace engineeringen_US
thesis.degree.disciplineMechanical and aerospace engineeringeng
thesis.degree.grantorUniversity of Missouri--Columbiaen_US
thesis.degree.levelDoctoralen_US
thesis.degree.namePh.D.en_US


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