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Explicit dynamic analysis of Drive Over Curb load case

Bistedt, Johanna LU and Thuvér, Albin LU (2025) In TFHF-5000 FHLM01 20251
Solid Mechanics
Department of Construction Sciences
Abstract
This thesis work has been conducted in collaboration with Volvo Cars Corporation. The aim of this study was to explore the potential of using an explicit dynamic finite element (FE) simulation to predict forces and accelerations in the suspension during a “Drive over Curb” load case. This was conducted using the explicit FE solver LS-DYNA. To validate the FE model, simulation results were compared to data from physical testing and to correlated simulation results from Adams Car.

An existing crash model was used to provide some initial results. Modifications made to the model could then be compared to the reference results, to see if the modifications made, improved the model. Several modifications of the model were implemented and the... (More)
This thesis work has been conducted in collaboration with Volvo Cars Corporation. The aim of this study was to explore the potential of using an explicit dynamic finite element (FE) simulation to predict forces and accelerations in the suspension during a “Drive over Curb” load case. This was conducted using the explicit FE solver LS-DYNA. To validate the FE model, simulation results were compared to data from physical testing and to correlated simulation results from Adams Car.

An existing crash model was used to provide some initial results. Modifications made to the model could then be compared to the reference results, to see if the modifications made, improved the model. Several modifications of the model were implemented and the spring aid, damper and tires provided the greatest improvement in correlation towards the physical test results.

For the model presented in this thesis improvements have been made, but no consistent pattern from the results could be seen. Therefore, the interpretation of the results was not obvious and further investigation is advised. Most importantly, further investigation of the spring aid and tires are of interest. (Less)
Popular Abstract (Swedish)
Denna populärvetenskapliga artikel undersöker om en dynamisk explicit FE-analys av en helbilsmodell kan användas för att simulera lastfallet "Drive Over Curb". Syftet var att ta reda på om en sådan helbilsmodell kan ge mer realistiska resultat än simuleringar på komponentnivå. Genom att jämföra simuleringsdata med fysiska testresultat visade det sig att metoden stämmer väl överens med verkligheten på flera viktiga punkter. Även om vissa delar fortfarande behöver utvecklas vidare, ser vi stor potential i metoden som ett framtida verktyg för Volvo Cars, särskilt med ytterligare fokus på att förbättra modelleringen av fjäderstopp och hjul.
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author
Bistedt, Johanna LU and Thuvér, Albin LU
supervisor
organization
alternative title
Explicit dynamisk analys av "Drive Over Curb" lastfall
course
FHLM01 20251
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
TFHF-5000
report number
TFHF-5266
language
English
id
9195568
date added to LUP
2025-07-02 09:02:26
date last changed
2025-07-02 09:02:26
@misc{9195568,
  abstract     = {{This thesis work has been conducted in collaboration with Volvo Cars Corporation. The aim of this study was to explore the potential of using an explicit dynamic finite element (FE) simulation to predict forces and accelerations in the suspension during a “Drive over Curb” load case. This was conducted using the explicit FE solver LS-DYNA. To validate the FE model, simulation results were compared to data from physical testing and to correlated simulation results from Adams Car.

An existing crash model was used to provide some initial results. Modifications made to the model could then be compared to the reference results, to see if the modifications made, improved the model. Several modifications of the model were implemented and the spring aid, damper and tires provided the greatest improvement in correlation towards the physical test results.

For the model presented in this thesis improvements have been made, but no consistent pattern from the results could be seen. Therefore, the interpretation of the results was not obvious and further investigation is advised. Most importantly, further investigation of the spring aid and tires are of interest.}},
  author       = {{Bistedt, Johanna and Thuvér, Albin}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{TFHF-5000}},
  title        = {{Explicit dynamic analysis of Drive Over Curb load case}},
  year         = {{2025}},
}