Letters to the editors

On the validity of nonholonomic model of the rattleback

Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Saratov Branch, ul. Zelenaya 38, Saratov, 410019, Russian Federation

In connection with the problem of a convex-shaped solid body on a rough horizontal plane (the rattleback or Celtic stone), the paper discusses the validity of the nonholonomic model, which postulates that the contact point has a zero velocity and hence friction performs no mechanical work. While abstract, this model is undoubtedly constructive, similar to many idealizations commonly used in science. Despite its energy-conserving nature, the model does not obey Liouville's theorem on phase volume conservation, thus allowing the occurrence in the phase space of objects characteristic for dissipative dynamics (attractors) and thereby leading to phenomena like the spontaneous reversal of rotations. Nonholonomic models, intermediate between conservative and dissipative systems, should take their deserved place in the general picture of the modern theory of dynamical systems.

Fulltext is available at IOP
Keywords: rattleback, solid body, nonholonomic model, attractor
PACS: 05.45.−a, 45.40.−f (all)
DOI: 10.3367/UFNe.0185.201512h.1342
Citation: Kuznetsov S P "On the validity of nonholonomic model of the rattleback" Phys. Usp. 58 1223–1224 (2015)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 On the validity of nonholonomic model of the rattleback
A1 Kuznetsov,S.P.
PB Physics-Uspekhi
PY 2015
FD 10 Dec, 2015
JF Physics-Uspekhi
JO Phys. Usp.
VO 58
IS 12
SP 1223-1224
DO 10.3367/UFNe.0185.201512h.1342

Received: 8th, October 2015, 8th, October 2015

Оригинал: Кузнецов С П «К вопросу о правомерности неголономной модели динамики кельтского камня» УФН 185 1342–1344 (2015); DOI: 10.3367/UFNr.0185.201512h.1342

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