Test method for bogies as well as test stand and assembly stand

Details Test method for bogies as well as test stand and assembly stand Test method for bogies as well as test stand and assembly stand

G - Physics

01

M

G01M 17/10 (2006.01)

Patent

CA 2759431

The invention relates to a test method for bogies (12) and a test stand suitable for carrying out the method, said test stand being additionally suitable for disassembling and assembling components of corresponding bogies (12). According to the proposed solution, the loads incurred by a bogie during its intended use are simulated in a known manner on a test stand designed for this purpose on the still unfinished bogie (12). To this end, forces are directed into the bogie (12) such as those caused by the weight of a car body and by other operation-related load conditions. The effect of these load conditions on the bogie (12) and/or of a track on which the bogie (12) runs is described by measured values, which are obtained by means of measuring sensors and are computer-processed. According to the invention, a respective force, used for the simulation of load conditions, is applied not as a pressure force, but rather as a tensile force acting directly on the bogie (12) or on a test stand element mounted directly on said bogie.

L'invention concerne un procédé de contrôle de bogies (12) et un banc d'essai approprié pour la mise en oeuvre du procédé, ledit banc d'essai pouvant également faire fonction de banc de montage pour le démontage et l'assemblage de modules des bogies correspondants. Selon la solution proposée, les contraintes apparaissant sur un bogie (12) lors de son utilisation conformément aux prescriptions sont simulées sur le bogie (12) se trouvant encore à l'état non monté sur un banc d'essai adapté, selon la technique connue. A cet effet, des efforts sont appliqués dans le bogie (12), ces efforts étant les mêmes que ceux induits sous le poids d'une caisse et par d'autres états de contrainte liés au fonctionnement, lors d'une utilisation conforme du bogie. L'effet de ces états de contrainte sur le bogie (12) et/ou sur une voie sur laquelle le bogie (12) est guidé est décrit par des valeurs de mesure obtenues au moyen de capteurs et traitées par ordinateur. Selon l'invention, un effort servant à simuler des états de contrainte n'est pas appliqué sous forme d'effort de compression mais sous forme d'effort de traction appliqué directement au bogie (12) ou à un élément du banc d'essai reposant directement sur le bogie (12).

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