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A Computer-Based Study of the Yaw/Roll Stability of Heavy Trucks Characterized by High Centers of Gravity
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1982 by SAE International in United States
Annotation ability available
A class of heavy truck vehicles, characterized primarily by high centers of gravity, was studied using analysis and computer simulation to identify and understand the relationship between directional and roll stability of such vehicles during steady turning maneuvers. Findings of the computer-based study suggest: (1) directional instability (yaw divergence) is possible for such vehicles during steady turning while operating at elevated speeds on horizontal road surfaces, (2) yaw divergence will lead to rollover in the absence of corrective steering action and/or reduced speed, and (3) the primary mechanism responsible for precipitating yaw divergent behavior in such vehicles is the nonlinear sensitivity of truck tire cornering stiffness to vertical load acting in combination with typical heavy truck fore/aft roll stiffness distributions. In addition, the influences of roadway superelevation and driver steering control as contributors to vehicle stabilization are examined and discussed.
CitationMacAdam, C., "A Computer-Based Study of the Yaw/Roll Stability of Heavy Trucks Characterized by High Centers of Gravity," SAE Technical Paper 821260, 1982, https://doi.org/10.4271/821260.
- Ervin, R.D. et al., “The Yaw Stability of Tractor-Semitrailers During Cornering.” Final Report on Contract DOT-HS-7-01602 June 1979
- Ervin R.D. Mallikarjunarao, C. “A Study of the Yaw Stability of Tractor-Semitrailer Combinations.” Proceedings of the 7th IAVSD Symposium on Dynamics of Vehicles on Roads and Tracks Cambridge, England September 1981
- Pacejka, H.B. “Simplified Analysis of Steady-State Turning Behavior of Motor Vehicles.” Vehicle System Dynamics 2 1973 161 204
- Segel L. Ervin, R.D. “The Influence of Tire Factors on Trucks and Tractor-Trailers.” Vehicle System Dynamics Vol. 10 No. 1 February 1981
- Ervin, R.D. et al., “Effects of Tire Properties on Truck and Bus Handling.” Report No. DOT-HS-802 141 December 1976
- Isermann, H. “Overturning Limits of Articulated Vehicles with Solid and Liquid Loads.” Motor Industry Research Assoc. Translation No. 58/70 1970
- Miller D.W.G. Barter, N.F. “Rollover of Articulated Vehicles.” I. Mechn. Engr. Conference on Vehicle Safety Legislation, Paper C203/73 1973
- Gauss, F. et al., “Calculation of the Overturn Resistance of Tractor-Semitrailer Combinations.” Motor Industry Research Assoc. Translation No. 22/76 1976
- Kemp, R.N. Chinn, B.P. Brock, G. “Articulated Vehicle Roll Stability: Methods of Assessment and Effects of Vehicle Characteristics.” TRRL Report 788
- Mallikarjunarao, C. “Road Tanker Design: Its Influence on the Risks and Economics of Transporting Gasoline in Michigan.” Ph.D. Thesis The University of Michigan December 1981
- Mallikarjunarao, C. Ervin, R.D. Segel, L. “Roll Response of Articulated Motor Trucks During Steady-Turning Maneuvers.” Presented at the ASME Annual Winter Meeting Phoenix, Ariz. November 14–19 1982
- Gillespie, T.D. et al., “Truck and Tractor-Trailer Dynamic Response Simulation—T3DRS:V1.” The Univ. of Michigan Report No. UM-HSRI-79-38-1 June 1979
- MacAdam, C.C. et al., “A Computerized Model for Simulating the Braking and Steering Dynamics of Trucks, Tractor-Semitrailers, Doubles, and Triples Combinations.” The Univ. of Michigan Report No. UM-HSRI-80-58 September 1 1980
- MacAdam, C.C. “Application of an Optimal Preview Control for Simulation of Closed-Loop Automobile Driving.” IEEE Transactions on Systems, Man, and Cybernetics Vol. SMC-11 No. 6 June 1981 393 399
- Winkler C.B. Gillespie, T.D. “On the Directional Response Characteristics of Heavy Trucks.” Proceedings of the Fifth VSD-2nd IUTAM Symposium on Dynamics of Vehicles on Roads and Tracks Vienna September 1977 165 183