Abstract

Work so far carried out confirms that the dynamic variations of axle load are similar in magnitude to the changes of axle load due to quasi-static weight transfer. The dynamic responses of the suspension, particularly the primary stage, are therefore considered to be of appreciable significance so far as adhesion is concerned. Road test results obtained with Bo-Bo electric locomotives having spring and kinematic drives as well as axle-hung motors are presented and these indicate the effect of specific suspension arrangements on variations of axle load.

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