Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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
Studie av självexciterade periodiska svängningar hos en hackspettsleksak
KTH, School of Engineering Sciences (SCI).
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Study of self excited periodic oscillations of a woodpecker toy (English)
Abstract [sv]

I denna studie presenteras två olika modeller över den icke-linjära dynamiken för en hackspettsleksak som i båda fallen modelleras som ett stelt flerkroppssystem. Modellerna är sedan implementerade i Matlab med hjälp av växlingsalgoritmer och därefter numeriskt analyserade för periodiskt stabila jämviktlägen genom att tillämpa fixpunktsiteration. För varje modell erhölls unika jämviktlägen av periodisk stabilitet där periodern skiljde sig åt marginellt. I motsats till det visade det sig att konvergenshastigheterna för modellerna skiljde sig åt markant.

Abstract [en]

This paper studies two different models of the nonlinear dynamics of a woodpecker toy. The models use a rigid multibody approach and are implemented in Matlab using switching algorithms and then analyzed for equilibriums of periodic stability using fixed-point iteration. For each model a unique equilibrium of periodic stability was found where the periods differed only marginally from each other. In contrast, the rates of convergence for the models was found to differ substantially.

Place, publisher, year, edition, pages
2019.
Series
TRITA-SCI-GRU ; 2019:177
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-254798OAI: oai:DiVA.org:kth-254798DiVA, id: diva2:1335375
Supervisors
Examiners
Available from: 2019-07-05 Created: 2019-07-05 Last updated: 2019-07-05Bibliographically approved

Open Access in DiVA

fulltext(1609 kB)11 downloads
File information
File name FULLTEXT01.pdfFile size 1609 kBChecksum SHA-512
d19bf26a3cf63e2da15b8b4fe2f241daa170b488b135bbfa8c76f161b501f3f2f0a3caa06a2a13cfba83926766a9f30c5ad60eeee6be261ef8e75df3b1b6442b
Type fulltextMimetype application/pdf

By organisation
School of Engineering Sciences (SCI)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 11 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 12 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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