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A sectioning method for constructing the mid-surface of thin-walled die-cast and injection moulded parts
Jönköping University, School of Engineering, JTH, Mechanical Engineering. Jönköping University, School of Engineering, JTH. Research area Computer Supported Engineering Design.
2006 (English)Report (Other academic)
Abstract [en]

This report presents a method for constructing the mid-surface of CAD models of parts requiring tooling for their manufacture. The mid-surface is constructed by sectioning the CAD-model in a sufficient number of places along the draft direction. In each section the mid-segments of the sectioned material is constructed. The complete mid-surface is obtained by connecting the individual mid-segments with the closest located mid-segment in the adjacent sections. The intended use of the method is computer implementation to automatically derive the mid-surface from CAD-models to be used as target geometry for FEA shell element meshing. The feasibility of the method is demonstrated by applying it to a CAD-model. In this example a target surface is constructed using both the conventional and the sectioning method. The target surfaces are used to create shell element FEA models.When solved, the natural frequencies of the two models are almost the same. This shows that the sectioning method is an alternative way of creating the target geometry. The intention is to use the method to create an automatic tool for mid-surface extraction with better performance than today's commercially available tools.

Place, publisher, year, edition, pages
Jönköping: Ingenjörshögskolan , 2006. , 7 p.
Series
Research Report. School of Engineering, ISSN 1404-0018 ; 2006:2
Keyword [en]
FEA, Idealisation, Mid-surface, Shell element, Meshing, Thin-walled, Target geometry
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:hj:diva-602OAI: oai:DiVA.org:hj-602DiVA: diva2:4318
Available from: 2006-11-28 Created: 2006-11-28 Last updated: 2011-09-29Bibliographically approved

Open Access in DiVA

fulltext(397 kB)622 downloads
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Type fulltextMimetype application/pdf

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Stolt, Roland
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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