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Effiziente Kontaktberechnung in flexiblen Mehrkörpersystemen
Citation Link: https://doi.org/10.15480/882.2709
Publikationstyp
Doctoral Thesis
Date Issued
2020
Sprache
German
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2020-01-24
Institut
TORE-DOI
TORE-URI
First published in
Number in series
4
Citation
MuM notes in mechanics and dynamics 4: (2020)
For efficient and accurate impact analysis, reduced flexible multibody systems can be used. To capture the stresses and deformations in the colliding bodies precisely, an elastic description of the body using a set of eigenmodes and static shape functions has to be used. The latter are necessary to capture the local deformation effects in the contact area. However, they introduce artificial eigenfrequencies of very high magnitude to the reduced system and therefore, the numerical efficiency is reduced. In this thesis two approaches for efficient contact simulation using reduced flexible multibody systems are presented. In the first approach, the artificial eigenfrequencies are damped. In the second approach they are neglected in the dynamic simulation. To verify these two approaches, detailed finite element simulations and experiments are used.
Subjects
Stöße
Flexible Mehrkörpersysteme
Modellreduktion
Kontaktsubmodelle
Penalty-Methode
Normalenkontakt
DDC Class
600: Technik
620: Ingenieurwissenschaften
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Name
Tschigg_Dissertation.pdf
Size
11.86 MB
Format
Adobe PDF