A Statistical Method to Substructure Crash Simulation Model

2021-01-5107

12/03/2021

Features
Event
Automotive Technical Papers
Authors Abstract
Content
This work presents a statistical method to use a portion of a full finite element vehicle model on a crash analysis event. The substructure model is linked to the full model by recording the interface boundary history. The lateral moving deformable barrier (MDB) test by the Insurance Institute for Highway Safety (IIHS) is used to demonstrate this substructure method: Substructure portion is identified by energy absorption distribution, and noise elements are filtered out by density-based spatial clustering of applications with noise (DBSCAN), a nonsupervised machine learning method. Crashworthiness simulation is performed in LS-DYNA software, and results between substructure vehicle model, full vehicle model, and physical vehicle test results are compared. It shows the result from the substructure model is more effective without accuracy compromise.
Meta TagsDetails
DOI
https://doi.org/10.4271/2021-01-5107
Pages
9
Citation
Liu, Z., "A Statistical Method to Substructure Crash Simulation Model," SAE Technical Paper 2021-01-5107, 2021, https://doi.org/10.4271/2021-01-5107.
Additional Details
Publisher
Published
Dec 3, 2021
Product Code
2021-01-5107
Content Type
Technical Paper
Language
English