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Vision-Based Microtribological Characterization of Linear Microball Bearings

dc.contributor.advisorGhodssi, Rezaen_US
dc.contributor.authorTan, X.en_US
dc.contributor.authorModafe, Alirezen_US
dc.contributor.authorHergert, R.en_US
dc.contributor.authorGhalichechian, N.en_US
dc.contributor.authorShapiro, B.en_US
dc.contributor.authorBaras, John S.en_US
dc.contributor.authorGhodssi, Rezaen_US
dc.description.abstractMicroball bearings can potentially provide robust and low friction support in micromachines such as micromotors and microgenerators. Their microtribological behavior needs to be investigated for design and control of such micromachines. In this paper a vision-based, non-intrusive measurement method is presented for characterization of friction in linear microball bearings. Infrared imaging is used to directly observe the dynamics of microballs and track the motion of bearing components. It is verified that microballs roll most of the time with occasional sliding or bumping resulting from fabrication nonuniformity. The friction-velocity curve demonstrates evident hysteresis. The dependence of frictional behavior on several factors is studied.en_US
dc.format.extent995742 bytes
dc.relation.ispartofseriesISR; TR 2004-41en_US
dc.titleVision-Based Microtribological Characterization of Linear Microball Bearingsen_US
dc.typeTechnical Reporten_US

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