On Detachment Conditions in the Problem on the Motion of a Rigid Body on a Rough Plane
2008, Vol. 4, No. 3, pp. 287-302
Author(s): Ivanov A. P.
1) In the absence of friction, the detachment conditions on stationary motions do not hold. However, if the angle $θ$ between the symmetry axis and the vertical decreases to zero, motions close to stationary motions are necessarily accompanied by detachments.
2) The same conclusion holds for a thin disk that rolls on the support without sliding.
3)For a disk of nonzero thickness in the absence of sliding, the detachment conditions hold on stationary motions in some domain in the space of parameters; in this case, the angle $θ$ is not less than 49 degrees. For small values of $θ$ the contact between the body and the support does not break in a neighborhood of stationary motions.
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