A white-box friction draft gear model has been developed with all components of the draft gear and their geometries considered. The conventional two-stage (loading and unloading) working process of the friction draft gear was detailed as a four-stage process. A preliminary work called the ‘base model’ was improved with regard to force–displacement characteristics, friction modelling and transitional characteristics. A set of impact test data were analysed; five types of draft gear behaviour were identified and modelled: hysteresis, stiffening, change of stage, locked unloading and softening. Simulated comparisons of three draft gear models were presented: a look-up table model, the base model and the advanced model.
Advanced dynamic modelling for friction draft gears
Vehicle System Dynamics ; 53 , 4 ; 475-492
2015
18 Seiten, 11 Bilder, 3 Tabellen, 25 Quellen
Article (Journal)
English
Advanced dynamic modelling for friction draft gears
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