Crash Performance Development of the Front Bumper System with Target Cascading Scheme

Paper #:
  • 2018-01-1054

Published:
  • 2018-04-03
Abstract:
This study presents an application of the Target Cascading scheme in developing crash performance of the front bumper system for the efficiency improvement of the vehicle developing process. By adopting the Target Cascading scheme, the design constraints and the feasible design space of the front bumper system can be defined. To define the design target values of the front bumper system, three physical variables are derived by analyzing the behaviors of the vehicle-level performance of the frontal impact under the high-speed (56kph NCAP frontal impact) and the low-speed (15kph RCAR structural test) crash conditions. To ensure sequential deformation of the vehicle bumper and the side members, the maximum collapse load of the crash box can be defined. The maximum dynamic displacement of the bumper beam under the low-speed crash loading is limited smaller than the distance between the bumper beam and the cooling module. The crash box deformation energy also should be greater than the initial kinetic energy of the vehicle under the low-speed crash condition, so as to prevent the damage of the structural part of the vehicle. Within the feasible design space fulfilling these constraints, the system-level crash performance of the front bumper system can be developed from the early design stage. The effectiveness of the Target Cascading scheme is shown by applying the proposed front bumper system design process to a new vehicle development program.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Select
Price
List
Download
$22.00
Mail
$22.00
Members save up to 36% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2009-12-15
Technical Paper / Journal Article
2011-05-17
Technical Paper / Journal Article
2011-05-17
Technical Paper / Journal Article
2011-05-17