his.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Finite Element Analysis of the Vasa’s Bottom Structure
Högskolan i Skövde, Institutionen för teknik och samhälle.
Högskolan i Skövde, Institutionen för teknik och samhälle.
2012 (Engelska)Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
Abstract [en]

The royal warship Vasa sank on its maiden voyage outside Stockholm and was salvaged more than 300 years later in 1961. Nowadays the vessel lies in its eponymous museum in Stockholm on a dry dock. However, it was determined that the ship cannot handle its own weight in a satisfactory manner with the current support system. Measurements during the past ten years have ascertained that the upper structure components of the hull are slowly deforming, mostly due to creep behavior.

 

A new support system for the ship needs to be designed in the near future and therefore, the mechanical behavior of its structural members and the stresses they are subjected to have to be determined. Factors that complicate a stress analysis include both inhomogeneity of the oak’s mechanical properties and limited opportunities for experimental testing. Furthermore, contamination, microbial degradation and preservation agents have significantly changed the integrity of the oak.

 

In this project a section of the Vasa’s bottom structure is studied through Finite Element Analysis in order to determine the stresses and deformations originated by the support system and to have a better understanding of these effects on the ship’s structure. Due to the considerable deterioration of the oak, especially on the external structural members, several assumptions are considered in order to perform analytical calculations to determine appropriate material properties for the FE-Models. 

 

After performing the computational simulations, the obtained results indicate that the bottom structure exhibits sufficient mechanical integrity to endure the stresses generated by the support system. Even by assuming the possibility of several damaged structural connections, only a minor difference of the effects of the reaction forces on the structure members was determined.

 

The thesis work ends with further conclusions from the performed analysis and suggested future work.

Ort, förlag, år, upplaga, sidor
2012. , s. 36
Nationell ämneskategori
Teknisk mekanik
Identifikatorer
URN: urn:nbn:se:his:diva-5663OAI: oai:DiVA.org:his-5663DiVA, id: diva2:512676
Ämne / kurs
Maskinteknik
Utbildningsprogram
Tillämpad mekanik - magisterprogram
Presentation
2012-03-26, G207, Högskolevägen 1, Skövde, 16:00 (Engelska)
Uppsök
teknik
Handledare
Examinatorer
Tillgänglig från: 2012-04-02 Skapad: 2012-03-28 Senast uppdaterad: 2012-04-02Bibliografiskt granskad

Open Access i DiVA

fulltext(2752 kB)884 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2752 kBChecksumma SHA-512
d3ed9efdb2736f13480d1bbf6da52e27ef8d48542fa80805e9aa71999d43a755996c50aea481040a6d90f25a00a1e43a2ec78e9c6418f05b586ee92a6df0834a
Typ fulltextMimetyp application/pdf

Sök vidare i DiVA

Av författaren/redaktören
Dabbagh, ArmanjGarza, Carlos
Av organisationen
Institutionen för teknik och samhälle
Teknisk mekanik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 884 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 530 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf