Abstract:

Tire simulation precision in vehicle crash simulation affects the deformation, pose and body
response. A testing system of tire dynamic impact was designed to improve the simulation precision. A tire FE
model was established using shell and solid about the dynamic impact testing system by Hypermesh, simulated
by LS-DYNA, and benchmarked with test. Two contrast tests were done with an impact velocity of 10 km/h using
a trolley specified in GB/T 20072-2006 to impact tire. After benchmarked, it was validated in vehicle. The results
show that the tire deformation, impact characteristic, and trolley acceleration are the same as test. Applied in
vehicle, the tire gesture, A-pillar deformation, and B-pillar acceleration are the same as vehicle test. Therefore,
the testing system of tire dynamic impact is available. The tire FE model is reasonable.

Key words: vehicle passive safety, tire, dynamic impact, testing and simulation, stiffness, benchmark analysis