3D Suspension Characterization of a Rapid Transit Vehicle Using a Multi-Body Dynamic Model

Abstract

In this work, suspension characterization of a rapid transit vehicle is performed with a multi-body dynamic model that represents full degrees of freedom of a rapid transit vehicle. The effects of lateral suspension properties on passenger ride comfort and stability are investigated by variation of critical suspension parameters using design of experiment method. The critical suspension properties are obtained for the best values of car body lateral acceleration and car body lateral stroke. The tangent track time response of the car body verified the negligible effect of both lateral viscous dampers at primary suspensions and longitudinal anti-yaw dampers at secondary suspensions on the passenger ride comfort and stability of a rapid transit vehicle.

Keywords

Rail vehicle dynamics / Suspension design / Tangent track analysis / Multi-body dynamic modeling

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Funding

Gulermak Heavy Industries