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Analysis of the phase space, asymptotic behavior and stability for heavy symmetric top and tippe top
Linköping University, Department of Mathematics, Applied Mathematics. Linköping University, The Institute of Technology.
2004 (English)Licentiate thesis, monograph (Other academic)
Abstract [en]

In this thesis we analyze the phase of the heavy symmetric top and the tippe top. These tops are two examples of physical systems for which the usefulness of integrals of motion and invariant manifolds, in phase space picture analysis, can be illustrated

In the case of the heavy symmetric top, simplified proofs of stability of the vertical rotation have been perpetuated by successive textbooks during the last century. In these proofs correct perturbations of integrals of motion are missing. This may seem harmless since the deduced threshold value for stability is correct. However, perturbations of first integrals are essential in rigorous proofs of stability of motions for both tops.

The tippe top is a toy that has the form of a truncated sphere equipped with a little peg. When spun fast on the spherical bottom its center of mass rises above its geometrical center and after a few seconds the top is spinning vertically on the peg. We study the tippe top through a sequence of embedded invariant manifolds to unveil the structure of the top's phase space. The last manifold, consisting of the asymptotic trajectories, is analyzed completely. We prove that trajectories in this manifold attract solutions in contact with the plane of support at all times and we give a complete description of their stability/instability properties for all admissible choices of model parameters and of the initial conditions.

Place, publisher, year, edition, pages
Matematiska institutionen , 2004. , 92 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1106
Keyword [en]
symmetric top, tippe top, vertical rotation, truncated sphere, asymptotic trajectories
National Category
Mathematics
Identifiers
URN: urn:nbn:se:liu:diva-5671ISBN: 91-7373-994-4 (print)OAI: oai:DiVA.org:liu-5671DiVA: diva2:21435
Presentation
2004-08-26, 00:00 (English)
Supervisors
Note
Report code: LiU-TEK-LIC-2004:35.Available from: 2004-09-13 Created: 2004-09-13 Last updated: 2009-06-04

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Sköldstam, Markus

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf