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Konstruktionsutvärdering och optimering av strögrep
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
2016 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Design evaluation and optimization of pitchfork (English)
Abstract [en]

This thesis describes the optimization process for the pitchfork developed by the company Sverigegrepen. The work was done at the department of Applied Mechanics at Uppsala University. The project were handed by Ångström Materials Academy together with Sverigegrepen

The work included a major prestudy of plastic construction, plastic materials, plastic injection and strength of materials. By applying the laws of beam theory, a mathematical expression could be provided, explaining the behaviour of the pitchforks teeth.

By studying the pitchfork with tools such as 3D- CAD and FEA-simulations, an area where high concentrations of stress were found, an area known to have frequent issues with strength. From this data several concepts were created with an increased strength and a better distribution of stress.

The plastic material was evaluated and tested to find the most valuable material characteristics. The provided information was used to isolate different functions in plastic materials, which is crucial for the pitchforks further functionality. 

Place, publisher, year, edition, pages
2016. , 57 p.
Keyword [en]
Stress concentrations, Injection moulding, Optimization, Plastic construction, Finite element analysis
Keyword [sv]
Plast, Plastkonstruktion, Formgjutning, Finita elementmetoden, Optimering, Strögrep, Mockningsredskap
National Category
Mechanical Engineering
URN: urn:nbn:se:uu:diva-295631ISRN: UTH-INGUTB-EX-M-2016/18-SEOAI: oai:DiVA.org:uu-295631DiVA: diva2:934229
External cooperation
Sverigegrepen AB
Educational program
Bachelor Programme in Mechanical Engineering
Available from: 2016-06-10 Created: 2016-06-08 Last updated: 2016-06-10Bibliographically approved

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