Frontal Structure Improvement on Car Based on RCAR Impact Test

Author

Zhu, Yu ; Li, Li ; Yang, JiKuang

Author_Institution

Dept. of Mech. & Vehicle Eng., Hunan Univ., Changsha, China

fYear

2012

fDate

July 31 2012-Aug. 2 2012

Firstpage

434

Lastpage

438

Abstract

The objective of this study is to optimize crash-box so as to improve low-speed crash energy absorption. For this purpose, a vehicle finite element (FE) model was established and validated by the acceleration curve of the back seat in 100% front impact and 40% offset impact. According to the RCAR rule, the simulation at low-speed impact of 16km/h was carried out to evaluate the crashworthiness of the car. Based on the simulation results, a crash-box was designed and the parameter study was carried out to improve the energy absorption of bumper and crash box by using the orthogonal experiment design and the overall balance method. The results showed that the improved frontal structures can be good to meet the requirement of RCAR regulations.

Keywords

automobiles; design engineering; design of experiments; finite element analysis; impact testing; optimisation; vehicle dynamics; RCAR impact test; RCAR regulations; RCAR rule; acceleration curve; car crashworthiness; crash-box design; crash-box optimization; energy absorption; frontal structure improvement; low-speed crash energy absorption; orthogonal experiment design; research council for automobile repairs; vehicle finite element model; Absorption; Acceleration; Computer crashes; Finite element methods; Maintenance engineering; Vehicle crash testing; Vehicles; crash-box; low-speed crash; orthogonal experiment design; overall balance method; simulation;

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.2012.104

Filename

6298549