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Nonlinear Modelling and Simulation of Impact Events and Validation with Experimental Test
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

For rattle event prediction accurate models capable of estimating system response at impact are required. In this thesis, a finite element model is built to imitate a physical setup designed for testing rattle. First, a modal analysis is performed in ABAQUS/Standard to validate the CAE model. Second, rattle is simulated in ABAQUS/Explicit and a correlation between the simulated and the experimental results is sought. Third, a sensitivity analysis is performed to investigate the effects of selected contact parameters on rattle-sensitive criteria. The important parameters are then identified, and preliminary guidelines are given for future CAE modelling of rattle.  

Abstract [sv]

För att motverka skramlande är nödvändigt att ha modeller kapabla till att förutspå systemsvar från stötar. I denna uppsats presenteras en modell gjord med hjälp av finita elementmetoden för att imitera en fysisk anordning vars syfte är att testa efter skrammel. Först utförs en modal analys i ABAQUS/Standard för att validera CAE-modellen. Därefter simuleras skrammel i ABAQUS/Explicit med syftet att hitta en korrelation mellan det simulerade skramlet och experimentella resultat. Sist så utförs en känslighetsanalys för att undersöka effekterna av utvalda kontaktparametrar på skrammelkänsliga kriteria. De viktiga parametrarna identifieras och preliminära riktlinjer ges för framtida CAE-modellering av skrammel. 

Place, publisher, year, edition, pages
2019. , p. 78
Series
TRITA-SCI-GRU ; 2019:042
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-265600OAI: oai:DiVA.org:kth-265600DiVA, id: diva2:1380114
External cooperation
Volvo Car Corporation
Examiners
Available from: 2019-12-18 Created: 2019-12-18 Last updated: 2019-12-18Bibliographically approved

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