Abstract
This paper is concerned with the dynamic response of straddle-monorail with single-axle bogie under curve condition. A 15 degrees-of-freedom(DOF) dynamic model is established for straddle-type monorail vehicle with single-axle bogie, which consists driving wheels, steering wheels and stabilizing wheels. The motion equations of the straddle-type monorail vehicle are derived using the Lagrange's equation, and the wheel-rail contact model and the curving track beam model are created. Compared with the test results, the accuracy of the method is verified. Finally, the influence of curve radius, curve superelevation rate, number of passengers and stiffness of driving wheels on dynamic response is discussed.
Highlights
In recent years, with the development of economy and society, the urban traffic problems become more and more serious
Goda et al [5] established the 9-DOF dynamic model of monorail vehicle considering the tire force of track irregularity, and carried out the spectrum analysis. They [6] analyzed the influence of the longitudinal stiffness of the air spring, and the research shown that the force of the steering wheel and the slip rate of the driving wheel were smaller when the longitudinal stiffness of the air spring was low
Lee et al [8] took the Osaka monorail steel structure bridge as the research object, derived a three-dimensional monorail bridge-train interaction system, and analytical results on dynamic response of the monorail train and bridge were compared with field-test data in order to verify the validity of the proposed analysis procedure
Summary
With the development of economy and society, the urban traffic problems become more and more serious. Goda et al [5] established the 9-DOF dynamic model of monorail vehicle considering the tire force of track irregularity, and carried out the spectrum analysis. They [6] analyzed the influence of the longitudinal stiffness of the air spring, and the research shown that the force of the steering wheel and the slip rate of the driving wheel were smaller when the longitudinal stiffness of the air spring was low. A 15-DOF dynamic model is established for straddle-type monorail vehicle with single-axle bogie, which consists driving wheels, steering wheels and stabilizing wheels.
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