3. Sprag-slip
Arc-boutement is also a vibration at 1 DDL, but its origin is a coupling between normal force and frictional force.
3.1 Model presentation
Sprag-slip was first formalized by Spurr in 1961.
via analysis of the behavior of a contact model between a rigid articulated beam of mass m brought into contact in an inclined position (angle θ with respect to the horizontal) with a flat surface animated by a constant sliding velocity V
0
(figure
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Sprag-slip
Mode coupling
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