The general form of the equations of motion of a symmetric railway vehicle with two unsymmetric two-axle bogies is derived. The equations include a generic elastic stiffness matrix that describes the nature and configuration of the structural connection between the various components of the vehicle. This matrix satisfies the conditions of perfect steering (without generating of creep forces) on uniform curves and the necessary condition for dynamic stability derived in a previous work. The paper shows the application of these basic conditions to a class of generic unsymmetric bogies. The analysis has as its objective the derivation of the simplest rather than the most general configuration that meets the conditions imposed. The results are related to past and current practice. It is shown that perfect steering, with stability at low speeds, can be achieved by means of passive suspension elements not employing linkages, and that it is possible to simplify existing steering components.
Railway vehicles with generic bogies capable of perfect steering
Eisenbahnfahrzeuge mit einer Art von Fahrgestellen, die perfekte Steuerung erlauben
Vehicle System Dynamics ; 25 , 6 ; 389-412
1996
24 Seiten, 11 Bilder, 25 Quellen
Article (Journal)
English
Railway Vehicles With Generic Bogies Capable of Perfect Steering
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