Frictional coupling between sliding and spinning motion

Abstract

We show that the friction force and torque, acting at a dry contact of two objects moving and rotating relative to each other, are inherently coupled. As a simple test system, a sliding and spinning disk on a horizontal flat surface is considered. We calculate, and also measure, how the disk is slowing down, and find that it always stops its sliding and spinning motion at the same moment. We discuss the impact of this coupling between friction force and torque on the physics of granular materials.

4 pages, 5 figures; submitted

References in corpus (4)

• Coefficient of restitution of colliding viscoelastic spheres
• Rolling friction of a viscous sphere on a hard plane
• Rolling friction of a hard cylinder on a viscous plane
• Pore Stabilization in Cohesive Granular Systems

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• Ballistic nanofriction
• Model for the resistance force acting on circular bodies in the imminence of rolling
• Motion of a thin elliptic plate under symmetric and asymmetric orthotropic friction forces
• Spinning rigid bodies driven by orbital forcing: The role of dry friction
• On the support of a body by a surface with random roughness
• Boundary Friction on Molecular Lubricants: Rolling Mode?