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Design of a cargo fastening device with a load indicator for heavy cargo
Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The aim of this thesis was to develop a new turnbuckle for fastening containers on cargo ships. The design was supposed to indicate whether the turnbuckle could be re-used, i.e. it hadn't plastically deformed. This indication could reduce the risk of a turnbuckle breaking during transport, since turnbuckles that have been exposed to a load above their safe working load would indicate this. \newline In total 25 different concepts were developed and put through two different elimination matrices which were evaluated against a requirement specification. The final design had calculated stress of 630 MPa at breaking load and 472 MPa proof load, the loads are defined by Germanischer Lloyd. A concept for measurement of the deformation of the turnbuckle was developed, however it is in need of further development and testing before it can be implemented. A suggestion of manufacturing method, material and surface treatment has been given, but prototype testing is required to verify the design and ensure adequate corrosion protection.

Place, publisher, year, edition, pages
2014. , 44 p.
Keyword [en]
Turnbuckle
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-33401OAI: oai:DiVA.org:kau-33401DiVA: diva2:738240
External cooperation
Technogarden
Educational program
Engineering: Mechanical Engineering, spec. in Materials Engineering (300 ECTS credits)
Supervisors
Examiners
Available from: 2014-08-19 Created: 2014-08-16 Last updated: 2014-08-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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