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Parametric Study of Three - Wheeler Directional Stability using MBD Simulations
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 28, 2010 by SAE International in United States
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Directional stability is an important parameter in high speed as well as in low speed maneuvering. A three - wheeled vehicle has a tendency to pull one side resulting in poor directional stability. This pulling requires continuous steering correction for improving directional stability. Driver needs to apply more force on handle bar to stabilize the vehicle. This causes the driver to experience shoulder pain and inferior maneuverability. A vehicle one side pull problem is directly related to safety and comfort. Also, during riding external disturbances from road generate lateral forces in tyre leading to sudden path deviation of vehicle. This path deviation deteriorates handling and it becomes difficult for the rider to control it to its original position. The aim of this work is to understand the influence of various parameters on three wheeled vehicle directional stability.
Different parameters such as front steering CG offset, uneven mass distribution, wheel camber, caster angle, trail, road camber, air drag and tyre conicity etc., contribute to one side pulling of the vehicle. The focus of the present work is on studying parameters like, caster angle, trail, and camber and their effects on directional stability of three - wheeled vehicle. A validated three wheeled vehicle multi body model in ADAMS is used for simulation to evaluate the degree of effects on the directional stability of three wheeled vehicle. The findings from this study have improved the understanding of the effect of caster angle, trail, and camber on directional stability during hands free steering condition. The design parameters are determined based on simulation for better directional stability. Simulation output is validated experimentally by free control test. The feasible solution for better directional stability among caster, trail and camber is arrived.
CitationGSG, R., D, G., Gawade, T., Santosh, K. et al., "Parametric Study of Three - Wheeler Directional Stability using MBD Simulations," SAE Technical Paper 2010-32-0102, 2010, https://doi.org/10.4271/2010-32-0102.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Gillespie, T. D. “Fundamentals of Vehicle Dynamics” SAE R-114 Warrendale, PA 1992
- oh, Sang-Hyun cho, Yopung-Hee Gim, Gwanghun “Identification of A Vehicle Pull Mechanism” Seoul 2000 FISITA World Automotive Congress, paper No:F2000G353
- ADAMS /Car User's Manual MSC ADAMS 2005
- Pacejka, Hans “Tyres and Vehicle dynamics” Elsevier publications 2006
- Gangi Reddy, D. Ravikanth, GSG Gawade, T. Jeyamurugan, V. Reddy, M. N. “Simulation and Experimental Study to Improve Wobbling Stability in 3-Wheeler” SAE Technical Paper 2009-32-0152 2002 10.4271/2009-32-0152
- Sharp, R S “Stability, Control and Steering responses of Motorcycles” Vehicle System Dynamics 35 4-5 2001 291 318
- Cossalter, Vittore “Motorcycle Dyanmics” 2006