Modelling a quad-bike rollover mechanism when traversing an asymmetric bump

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 finite element (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.

• Record URL:
  https://doi.org/10.1080/13588265.2018.1480181
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13588265
• Supplemental Notes:
  • © 2018 Informa UK Limited, trading as Taylor & Francis Group. Abstract republished with permission of Taylor & Francis.
• Authors:
  • Hicks, David
  • Mongiardini, Mario
  • Grzebieta, Raphael
  • Rechnitzer, George
  • Simmons, Keith
• Publication Date: 2019-9

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: pp 543-554
• Serial:
  • International Journal of Crashworthiness
  • Volume: 24
  • Issue Number: 5
  • Publisher: Taylor & Francis
  • ISSN: 1358-8265
  • Serial URL: http://www.tandfonline.com/loi/tcrs20

Subject/Index Terms

• TRT Terms: All terrain vehicles; Dummies; Finite element method; Friction; Rollover crashes; Sensitivity analysis; Steering; Validation
• Geographic Terms: Australia
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01713643
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 12 2019 10:53AM