Heavy truck rollover characterization: new-generation single tires vs. standard duals

The objective of this research was to form a baseline analysis of tractor/trailer rollover characteristics for further comparative studies, to look at run-off road contributions to rollover and to do a preliminary analysis of the impact of replacing standard duals with next generation single radials. The approach was to instrument a class-8 tractor-trailer with various vehicle dynamics sensors and outriggers, and to engage in various rollover catalytic maneuvers (evasive maneuver, constant radius, and run-off-the-road). A Swept Sine test was also conducted to collect data regarding the vehicle's dynamic frequency response. Results from six test series showed that in most cases, the use of new generation single tires and wider-slider suspensions, provided a benefit for reducing rollover propensity when compared to standard dual tires and standard suspensions. For the evasive maneuver, the use of new-generation single tires and a wider-slider suspension on the trailer resulted in a decrease of the maximum trailer roll angle per lateral acceleration ratio by 45 percent.

Language

  • English

Media Info

  • Pagination: 23-33
  • Monograph Title: Final proceedings: International Truck and Bus Safety and Security Symposium, November 14-16, 2005, Alexandria, Virginia, USA

Subject/Index Terms

Filing Info

  • Accession Number: 01388639
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 23 2012 1:10AM