Lateral Dynamic Simulation of a Bus under Variable Conditions of Camber and Curvature Radius

The objective of this paper is to describe a model for the simulation of the lateral dynamics of a vehicle, specifically buses, under variable trajectory conditions, such as camber and radius of curvature; in addition, a variable speed is added as a simulation parameter. The objective of this study...

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Bibliographic Details
Published in:Mathematics (Basel) 2022-09, Vol.10 (17), p.3081
Main Authors: Olmeda, Ester, Carrillo Li, Enrique Roberto, Rodríguez Hernández, Jorge, Díaz, Vicente
Format: Article
Language:English
Subjects:
Aircraft accidents & safety
Automobile driving
Buses
Camber
Design
Influence
lateral dynamics
Mathematical models
Mechanical properties
Motor vehicle driving
Ordinary differential equations
Parameters
Radius of curvature
Rollover
safety vehicle index
Sideslip
Simulation
Stiffness
Suspension systems
Torsion springs
track parameters
Traffic accidents & safety
vehicle mathematical modeling
Vehicles
Velocity
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Summary:The objective of this paper is to describe a model for the simulation of the lateral dynamics of a vehicle, specifically buses, under variable trajectory conditions, such as camber and radius of curvature; in addition, a variable speed is added as a simulation parameter. The objective of this study is the prevention of vehicle rollover and sideslip. An 8 degrees of freedom model was developed, considering a front and a rear section of the bus with its respective suspension system, and both sections have been connected by a torsion spring that emulates the torsional stiffness of the vehicle chassis. A Panhard bar is also added at the rear as an additional element to the suspension and the behavior of the bus when it is added is analyzed. This model also allows the evaluation of the force on each suspension component, which allows for future controllability of the active suspension components. The results show the dynamic behavior of the vehicle, and some indicators are introduced to show the possible sideslip or rollover. As a conclusion, the influence of the road parameters on the dynamic behavior of the bus and the effect of the Panhard bar on the dynamic behavior of the bus can be pointed out.
ISSN:2227-7390
2227-7390
DOI:10.3390/math10173081