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FRAMTAGNING AV MÅLVIKT FÖR MEKANIKKONSTRUKTÖRER: VIKTOPTIMERING AV CHASSIMONTERADE PLÅTFÄSTEN
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
2016 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Development of weight target for mechanical design engineers : Weight optimization of chassis mounted steel brackets (English)
Abstract [sv]

På Scania finns uppsatta hållfasthetskrav i form av dokumenterade lastfall och utvärderingskriterier. Detta för att kvalitetssäkra produkterna, men det saknas riktlinjer för vad vissa konstruktioner egentligen bör väga. Syftet med examensarbetet var att utforska möjligheten att ta fram målvikter genom att kartlägga bland annat vikt och hållfasthet för ett antal olika plåtfästen på lastbilschassier. Som en del av detta har finita element beräkningar och topologioptimering använts. Ett antal nyckeltal har tagits fram för varje plåtfäste, vilket gav upphov till en tabell indelad i fyra stycken zoner definierade av plåtfästenas förutsättningar. Resultatet är ett levande verktyg som kan guida och utmana konstruktörer till att göra lättare konstruktioner.

Abstract [en]

In order to ensure quality, Scania requires a certain strength and stiffness of its components. This is based on documented load cases and evaluation criteria’s. But there exists no clear guideline for what the weight of the components actually should be. The aim of this thesis was to study if it was possible to develop weight goals by mapping weight and structural carrying capabilities for a number of sheet metal brackets on the heavy truck chassis. As a part of this finite element calculations and topology optimization have been used. For each bracket, a number of key performance indicators was developed which gave rise to a table divided into four major zones defined by the brackets prerequisites. The result is a living weight tool that can guide and challenge the design engineer to construct lighter structures.

Place, publisher, year, edition, pages
2016. , p. 49
Series
TRITA-AVE, ISSN 1651-7660 ; 2016:70
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-198511OAI: oai:DiVA.org:kth-198511DiVA, id: diva2:1057175
External cooperation
Scania
Supervisors
Examiners
Available from: 2016-12-16 Created: 2016-12-16 Last updated: 2016-12-16Bibliographically approved

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