A study on the application of energy-dissipating protection device in car-to-truck rear underride
Paper in proceeding, 2013

A passenger car is severely damaged in car-to-truck underride accident which threatens the lives in the passenger car seriously. The objective of the study is to develop an energy-dissipating rear underride protection device (RUPD) for diminishing the hazard imposed on the passenger car and the occupants. The new RUPD which has energy-dissipating structure is designed. It is modeled in virtual environment together with a moving barrier (MB) and a contrastive common RUPD. Finite element simulation is performed for comparative analysis on the performance of the two RUPDs in LS-DYNA. In the virtual test, the MB crashes into the two RUPDs respectively according to the national standard GB11567.2-2001. The conditions of 54km/h crash speed and offset collision form are added to the virtual test for further test. The results show that under the national standard condition, the new RUPD dissipates 77% of the total crash energy and the MB's acceleration peak in the test of the new RUPD is 22.8g, which is 40% lower than that in the test of the common one. In the extension virtual tests, the new RUPD performs effectively in buffering, energy dissipating and underride protecting.





Lu Xue

State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body

Jikuang Yang

Chalmers, Applied Mechanics, Vehicle Safety

Proceedings - 2013 5th Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2013

9780769549323 (ISBN)

Areas of Advance


Subject Categories

Transport Systems and Logistics





More information