Magneto-Rheological Dampers for Super-sport Motorcycle Applications

dc.contributor.authorGravatt, John Wilieen
dc.contributor.committeechairAhmadian, Mehdien
dc.contributor.committeememberKasarda, Mary E. F.en
dc.contributor.committeememberRobertshaw, Harry H.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:37:43Zen
dc.date.adate2003-06-19en
dc.date.available2014-03-14T20:37:43Zen
dc.date.issued2003-05-08en
dc.date.rdate2003-06-19en
dc.date.sdate2003-05-20en
dc.description.abstractIn recent years, a flurry of interest has been shown for a relatively old technology called magneto-rheological fluids, or MR fluids. Multiple types of devices have been designed to implement this versatile fluid, including linear dampers, clutches, work-piece fixtures, and polishing machines. The devices have been used in automobiles, washing machines, bicycles, prosthetic limbs, and even smart structures. This thesis focuses on another application of MR dampers, involving super-sport motorcycles. This paper introduces the topics of MR dampers and motorcycle suspensions, and why the two would be a good combination. A detailed history of MR fluids, MR dampers, and motorcycle suspension technologies is given next. After a broad outline of MR dampers and motorcycle suspensions, the method of designing and manufacturing MR dampers is discussed. The damper design for this research is presented in detail, along with the design procedure used to make it. Next, laboratory testing for it is covered, including the test equipment, test procedure, and the laboratory test results. Upon laboratory test completion, the field test setup and procedure are presented. The results of field tests with stock dampers and MR dampers with a variety of control systems is discussed. The MR dampers provided a more stable ride than that of the OEM dampers. By reducing suspension displacement, settling time, and suspension oscillations, the MR dampers were able to reduce suspension geometry instability. Lastly, concluding remarks are made on the research presented. Design flaws are discussed, as well as recommendations for future work in the same area.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05202003-214157en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05202003-214157/en
dc.identifier.urihttp://hdl.handle.net/10919/33022en
dc.publisherVirginia Techen
dc.relation.haspartGravatt_MS_Thesis_2003.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectmagneto-rheologicalen
dc.subjectdamperen
dc.subjectsemiactiveen
dc.subjectmotorcycleen
dc.subjectcontrollable damperen
dc.subjectshock absorberen
dc.titleMagneto-Rheological Dampers for Super-sport Motorcycle Applicationsen
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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