Rolling Stock Technology Lecture1

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Rolling Stock Technology: Introduction to Vehicle Dynamics 1 Wichai Siwakosit KURAIL, Kasetsart University

Introduction to Rail Vehicle Dynamics 1 • Redtenbacher’s Formula and Klingel’s Formula • Rolling Radius Difference Function

• Equivalent Conicity • Wheel Rail Contact • Quasi Static Curving

Redtenbacher’s Formula and Klingel’s Formula Left Rail

Right Rail

Instantaneous Radius of Curvature

Lateral Displacement Mid of Rail Nominal Radius Sinusoid Path of Wheel Set Center

Conicity Redtenbacher’s Formula

Redtenbacher’s Formula and Klingel’s Formula

Redtenbacher’s Formula and Klingel’s Formula y

Sinusoid Path of Wheel Set Center Amplitude of Lateral Displacement x Wave Length

Klingel’s Formula

Redtenbacher’s Formula and Klingel’s Formula

Redtenbacher’s Formula and Klingel’s Formula

Rolling Radius Difference Function

Radii of left and right wheels when a center of a wheelset is at the center of the track (left) and to the right of the center of the track (right)

Rolling Radius Difference Function

Rolling Radius Difference Function

Rolling Radius Difference Function

Rolling Radius Difference Function

Equivalent Conicity

Homework

Wheel Rail Contact

Wheel Rail Contact

Wheel Rail Contact

Wheel Rail Contact

Wheel Rail Contact

Wheel Rail Contact

Wheel Rail Contact

Wheel Rail Contact

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

Quasi-Static Curving

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