The effects of load cell wall design in the assessment of shape compatibility in vehicle collisions


HİMMETOĞLU S.

22nd International Scientific on Conference Transport Means 2018, Trakai, Lithuania, 3 - 05 October 2018, pp.84-91 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Trakai
  • Country: Lithuania
  • Page Numbers: pp.84-91

Abstract

© Transport Means - Proceedings of the International Conference. All rights reserved.Override/underride crashes are a typical shape incompatibility problem which stems from the differences in the height of main energy absorbing structures of vehicles. In order to assess the risk of shape incompatibility, full-width rigid barrier (FWRB) crash tests under the New Car Assessment Program (NCAP) are utilised to determine the average height of force on the barrier with the aid of load cells attached to the barrier. This paper evaluates the differences in the average height of force values between single-axis and multi-axis load cell walls or barriers regarding the most recent FWRB crash tests. For four different vehicle types (3 passenger cars, 1 SUV, 1 light truck, 1 van), average height of force is calculated with and without moments recorded by the load cells. Load cell walls with different resolutions are also investigated to see the differences in average height of force values based on load cell size. It is observed that the average height of force values do not change significantly when moments from the load cells are taken into consideration for higher resolution load cell walls. The results of this study is a useful guide to design cost-effective load cell walls which can accurately measure average height of force in order to investigate shape incompatibility between vehicles.