The rear-end crash pulse generator has been considered to be a key device for performing car impact safety research under laboratory conditions. According to the international regulation, ECE R44, the polyurethane (PU) tube was recommended to produce a standard rear-end pulse. However, little literatures on the impact dynamics of PU tube were known. In this study, a was established under ANSYS/LS-DYNA. With this finite element model, the following conditions to generate the standard rear-end impact pulses were determined: the initial impact velocity of sled was 30 km/h, the resultant mass of sled was 680 kg, number of PU-tubes was three, and outer diameter of olive knob was 46 mm. Compared with the standard deceleration-time curve of actual rear-end crash, this finite element model of rear-end crash pulse generator was preliminarily validated.
Modeling of a Rear-End Crash Pulse Generator
2012
6 Seiten
Aufsatz (Konferenz)
Englisch
Modeling of a Rear-End Crash Pulse Generator
Trans Tech Publications | 2012
|Crash Pulse Recorders in Rear Impacts - Real Life Data
British Library Conference Proceedings | 1998
|