Abstract
This paper addresses the influence of the partial slip phenomenon on the dynamic motion of a spherical workpiece held in a fixture with application to machining fixture design. The model considers the effect of interfacial slip damping arising from partial slip at a spherical–planar frictional contact subjected to a constant normal load and oscillating tangential load. The model can be used in both single and multiple contact cases as long as the loading assumption for each contact is valid and harmonic balance can be applied. An experimental set up is designed to validate the model for the multiple contact case. Experimental results agree favorably with those predicted by the model. Under the conditions being studied, it is shown that the effect of the partial slip phenomenon on workpiece dynamic motion is significant and should not be ignored.
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