A Comparative Study on Airbag Inflation Properties Using CV and ALE-Based Approaches

Author

Jing Huang ; Lin Hu

Author_Institution

State Key Lab. of Adv. Design & Manuf. for Vehicle Body, Hunan Univ., Changsha, China

fYear

2012

fDate

July 31 2012-Aug. 2 2012

Firstpage

17

Lastpage

20

Abstract

This paper compared airbag deployment properties between two simulation approaches in LS-DYNA: the thermodynamic-based control volume (CV) method and the Arbitrary-Lagrange-Eulerian (ALE-based) method. The results from airbag static deployment test and head form impact test indicated that the ALE approach is more accurate than CV approach in simulating airbag initial deployment stage, and the simplified CV approach is inappropriate for analysis of occupant safety in the Out-of-Position (OOP) case.

Keywords

automotive components; automotive engineering; digital simulation; impact (mechanical); impact testing; mechanical engineering computing; road safety; thermodynamics; LS-DYNA; airbag deployment property; airbag inflation property; airbag initial deployment stage simulation; airbag static deployment test; arbitrary-Lagrange-Eulerian method; head form impact test; occupant safety; out-of-position case; simulation approach; thermodynamic-based control volume method; Atmospheric modeling; Computational modeling; Fabrics; Finite element methods; Generators; Mathematical model; Arbitrary-Lagrange-Eulerian (ALE-based) method; Control Volume (CV) method; airbag deployment; numerical Simulations;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Manufacturing and Automation (ICDMA), 2012 Third International Conference on

Conference_Location

GuiLin

Print_ISBN

978-1-4673-2217-1

Type

conf

DOI

10.1109/ICDMA.2012.5

Filename

6298708