Rolling/Slipping Motion of Euler's Disk

Details Rolling/Slipping Motion of Euler's Disk Rolling/Slipping Motion of Euler's Disk

2004-01-16

arxiv.org/abs/cond-mat/0401278v1

Physics

Condensed Matter

Statistical Mechanics

Submitted for publication (2003) - 6pages

Scientific paper

10.1103/PhysRevE.69.056610

We present an experimental study of the motion of a circular disk spun onto a table. With the help of a high speed video system, the temporal evolutions of (i) the inclination angle $\alpha$, (ii) the angular velocity $\omega$ and (iii) the precession rate $\Omega$ are studied. The influence of the mass of the disk and the friction between the disk and the supporting surface are considered. %The motions of disks with different masses and over different surfaces are studied. The inclination angle $\alpha$ and the angular velocity are observed to decrease according to a power law. We also show that the precession rate $\Omega$ diverges as the disk stops. Exponents are measured very near the collapse as well as on long range times. Collapsing times have been also measured. The results are compared with previous theoretical and experimental works. The major source of energy dissipation is found to be the slipping of the disk on the plane.

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