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dc.contributor.authorBrown, William E. IIIen
dc.date.accessioned2014-03-14T20:30:55Zen
dc.date.available2014-03-14T20:30:55Zen
dc.date.issued2002-01-10en
dc.identifier.otheretd-01182002-104559en
dc.identifier.urihttp://hdl.handle.net/10919/30983en
dc.description.abstractShaft mounted speed reducers are used in material handling applications, such as conveyor systems for transporting ore out of mine shafts. A subbase joins the reducer with an electric motor, and serves to limit the misalignment between the motor shaft and the reducer input shaft. The entire assembly is supported at two points: the axis of rotation of the reducer output shaft, which is fixed, and a clevis-pin joint under the motor, which prevents rotation of the assembly about the reducer output shaft axis. In an effort to reduce the production and material costs of subbases that support shaft mounted reducers, Rexnord Corp. is implementing subbase designs that are lighter weight and easier to manufacture than current designs. Impeding the implementation of lower cost designs is the lack of an equation to properly choose subbase dimensions for acceptable values of shaft misalignment. Trial and error in subbase construction may provide designs that give acceptable results for misalignment. Given an equation, however, the weight could be minimized while still limiting misalignment at the coupling location. The project goal is to provide equations that give shaft misalignment as a function of three subbase parameters: tube thickness, mounting strap width, and end cap thickness. Developing design equations by analytical methods is investigated first. Next, finite element models are used to check the analytical results for accuracy. Finally, finite element models are used to perform design sensitivity studies where needed. The final equations for misalignment are given as functions of the three design variables.en
dc.publisherVirginia Techen
dc.relation.haspartThesis_WEBIII.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectFEAen
dc.subjectDOEen
dc.subjectSquare Tubeen
dc.subjectMotoren
dc.subjectSubbaseen
dc.subjectSpeed Reduceren
dc.titleDevelopment Of Design Equations For A Square-tube Subbase Supporting A Shaft-mounted Speed Reduceren
dc.typeThesisen
dc.contributor.departmentMechanical Engineeringen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineMechanical Engineeringen
dc.contributor.committeechairMitchiner, Reginald G.en
dc.contributor.committeememberInman, Daniel J.en
dc.contributor.committeememberWest, Robert L. Jr.en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01182002-104559/en
dc.date.sdate2002-01-18en
dc.date.rdate2003-01-18en
dc.date.adate2002-01-18en


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