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Sandwich design of a lift plate for tail lift platforms for cargo trucks
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This master thesis examines a sandwich lift plate for cargo trucks in order to propose an option for existing lift platforms in aluminium or steel. The wish is to make it lighter but not less stiff or weak. Two different cores in Divinycell with different density; H130 and H250 is examined. Calculations are made with respect to deflection and max stress in both core and faces for the whole plates. But also more local calculations are performed to see how the faces and core behaved on local point loads from pallet lift wheels.

The analytical results successfully meet the deflection requirements causing only 30 mm deflection in the worst scenario with 33% overload on a lift plate built up by 3 mm aluminium faces and H130 Divinycell core measuring a total (incl. faces) 20 mm thickness in the top. Nor did the von Mises stresses exceed 50% of ultimate strength for the aluminium parts or the Divinycell core. The choice between the lighter (H130) and heavier (H250) core only appears to affect the deflection 1-2 mm and the von Mises face stress for point loads are in the order of 10 MPa.

The objective regarding the mass of the lift plate was not met. This is however a matter of further optimisation and is considered to be solved.

Place, publisher, year, edition, pages
2015. , 39 p.
Series
TRITA-AVE, ISSN 1651-7660 ; 2015:20
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-180276OAI: oai:DiVA.org:kth-180276DiVA: diva2:892095
Subject / course
Lightweight Structures
Examiners
Available from: 2016-01-08 Created: 2016-01-08 Last updated: 2016-01-08Bibliographically approved

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CiteExportLink to record
Permanent link

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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