TY  - JOUR
PY  - 2019//
TI  - Modelling a quad-bike rollover mechanism when traversing an asymmetric bump
JO  - International journal of crashworthiness
A1  - Hicks, David
A1  - Mongiardini, Mario
A1  - Grzebieta, Raphael
A1  - Rechnitzer, George
A1  - Simmons, Keith
SP  - 543
EP  - 554
VL  - 24
IS  - 5
N2  - Experimental testing of a quad bike traversing a bump placed in-line with one of the vehicle's wheel tracks showed that a passive rider could be displaced across the quad-bike seat resulting in the vehicle's sudden unintentional steering. It was hypothesised that this 'bump' mechanism could result in a rollover. To determine whether such a bump mechanism can precipitate a rollover and under what conditions it occurs, an earlier developed quad bike FE model combined with a seated Anthropomorphic Test Device FE model was validated against experimental tests of the quad bike traversing a semi-cylindrical bump. A sensitivity analysis was then carried out varying the initial conditions of ground friction and approach angle on flat terrain. The FE simulations show that the bump mechanism, for a particular set of friction values and approach angle, resulted in a rollover. The identified bump-induced rollover mechanism could help explain some of the rollover-associated quad bike crashes on Australian farms where it was known that a fatality occurred as a result of rollover which happened due to traversing a bump from Coronial investigations carried out by the authors.<p />  <p>Language: en</p>
LA  - en
SN  - 1358-8265
UR  - http://dx.doi.org/10.1080/13588265.2018.1480181
ID  - ref1
ER  -