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Jämförelse mellan två metoder för mätning av kartongförpackningars greppstyvhet
Örebro University, School of Science and Technology.
Örebro University, School of Science and Technology.
2016 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
A Comparison Between Two Methods for the Measurement of Grip Stiffness of Carton Board Packages (English)
Abstract [sv]

Denna rapport avhandlar ett examensarbete på 15 hp utfört åt BillerudKorsnäs inom forskningsprojektet "A New Model for Deformation of Carton Board Packages by Manual Handling". Syftet är att analysera två olika testmetoder som används för att undersöka kartongförpackningars greppstyvhet. Detta görs genom att undersöka hur väl metoderna kan skilja på olika kartongkvaliteter.

Målet är att genomföra tester på en Lloyd Instrument LR5K dragprovare och jämföra resultaten med erhållna resultat från Syntouch´s BioTac, vilket är en fingerliknande taktil sensor.

Tryckprover utfördes på Örebro Universitet, på ca 120 kartongförpackningar där diverse storlekar på sfärer användes för att applicera kraft på förpackningen. Statistiska metoder användes för att avgöra metodernas tillförlitlighet.

Det kunde avgöras att vid små fixa krafter så kan inte Lloyd Instrument LR5K dragprovaren differentiera olika kartongtyper åt. Däremot kan tydliga skillnader ses vid jämförelse av högsta uppmätta styvhet. BioTac kan vid små fixa krafter differentiera kartongkvaliteter.

Abstract [en]

This Bachelor’s thesis is a collaborated work done between the paper manufacturer BillerudKorsnäs and Örebro University, within the research project "A New Model for Deformation of Carton Board Packages by Manual Handling". The aim of this work is to test and evaluate two methods regarding their ability to determine grip stiffness of cartonboard packages. This was achieved by analyzing how well each method was able to distinguish between various cartonboard qualities.

The two methods that were compared were: box compression tests performed by a Lloyd Instrument LR5K tensile testing unit, and BioTac which is a finger-like tactile sensory device made by Syntouch LLC.

About 120 box compression tests, with varying sphere sizes, were performed on cartonboard packages supplied by BillerudKorsnäs. Statistical methods were then applied to the data from these tests in order to see whether this method was able to distinguish between the different cartonboard materials.

A member of the research project had previously performed experiments using the BioTac on the same types of packages. Data from those experiments underwent the same statistical tests. The results from the two methods could thus be compared.

Albeit being able to distinguish maximum stiffnesses between the cartonboard materials for arbitrary forces, the box compression method failed at this endeavor for fixed low forces. The BioTac, however, showed better results in that regard.

Place, publisher, year, edition, pages
2016.
Keyword [sv]
greppstyvhet, kartongförpackning, testmetoder
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:oru:diva-52488OAI: oai:DiVA.org:oru-52488DiVA: diva2:974026
Subject / course
Mechanical Engineering
Supervisors
Examiners
Available from: 2016-09-23 Created: 2016-09-23 Last updated: 2017-10-17Bibliographically approved

Open Access in DiVA

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