This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Simulation-Based Study on the Improvement of Semi-Truck Roll Stability in Roundabouts
Technical Paper
2016-01-8038
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper studies the effect of different longitudinal load conditions, roundabout cross-sectional geometry, and different semi-truck pneumatic suspension systems on roll stability in roundabouts, which have become more and more popular in urban settings. Roundabouts are commonly designed in their size and form to accommodate articulated heavy vehicles (AHVs) by evaluating such affects as off-tracking. However, the effect of the roadway geometry in roundabouts on the roll dynamics of semi-tractors and trailers are equally important, along with their entry and exit configuration. , Because the effect of the roundabout on the dynamics of trucks is further removed from the immediate issues considered by roadway planner, at times they are not given as much consideration as other roadway design factors. In this study, the cross-sectional geometry of circulatory roadway, a key roundabout segment, is studied to evaluate its effect on roll stability of a WB-67 semi-truck with three longitudinal load conditions, when the truck is equipped with conventional OE suspensions and a balanced pneumatic system. TruckSim is used to develop various configurations of roundabout models, as well as a detailed model of the dynamics of the semi-tractor and trailer. The pneumatic dynamics of the suspensions are modeled in AMESim, a commercial software, and merged with TruckSim model of the vehicle, using Simulink. Simulation results indicate thin the roundabout cross-sectional geometry and truck pneumatic suspension system significantly influence the roll dynamics of the truck in roundabouts, whereas the longitudinal load conditions have relatively less effect. Both the roundabout geometry and suspension dynamics can be designed to reduce the likelihood of rollovers at speeds that trucks commonly negotiate roundabouts.
Authors
Topic
Citation
Hou, Y., Chen, Y., and Ahmadian, M., "A Simulation-Based Study on the Improvement of Semi-Truck Roll Stability in Roundabouts," SAE Technical Paper 2016-01-8038, 2016, https://doi.org/10.4271/2016-01-8038.Also In
References
- Rodegerdts , L. Roundabouts in the United States Washington, D.C., United States Transportation Research Board 2007 978-0-309-09874-8
- Rodegerdts , L. , Griffin , A. , Steyn , H. , Ahmadian , M. , Hou , Y. , and Taheri , M. Accelerating Roundabouts in the United States: Volume V of VII - Evaluation of Geometric Parameters That Affect Truck Maneuvering and Stability Federal Highway Administration Washington, D.C. 2015
- Hou , Y. and Ahmadian , M. Effects of Commercial Truck Configuration on Roll Stability in Roundabouts SAE Technical Paper 2015-01-2741 2015 10.4271/2015-01-2741
- Cerezo , V. , and Gothie , M. Heavy Goods Vehicles Accidents on Roundabouts: Parameters of Influence 9th International Symposium on Heavy Vehicle Transport Technology 2006
- Barickman , F. , Elsasser , D. , Albrecht , H. , Church , J. , and Xu , G. Tractor Semi-Trailer Stability Objective Performance Test Research - Roll Stability National Highway Traffic Safety Administration Washington, D.C. 2011
- AASHTO A Policy on Geometric Design of Highways and Streets, Fifth Edition American Association of State Highway and Transportation Officials Washington, D.C. 2004 1-56051-291-2
- Chen , Y. , Ahmadian , M. , and Peterson , A. Pneumatically Balanced Heavy Truck Air Suspensions for Improved Roll Stability SAE Technical Paper 2015-01-2749 2015 10.4271/2015-01-2749
- Robinson , B. W. , Rodegerdts , L. , Scarborough , W. , Kittelson , W. et al. Roundabouts: An Informational Guide, Second Edition Washington, D.C., United States Transportation Research Board 2010 978-0-309-15511-3
- Waddell , E. , Gingrich , M. , and Lenters , M. Trucks in Roundabouts: Pitfalls in Design and Operations ITE Journal February 40 45 2009
- Winkler , C. B. , and Ervin , R. D. Rollover of Heavy Commercial Vehicles, UMTRI-99-19 The University of Michigan Transportation Research Institute 1999
- Fancher , P. S. A Factbook of the Mechanical Properties of the Components for Single-Unit and Articulated Heavy Trucks. Phase I. Final Report The University of Michigan Transportation Research Institute 1986