Abstract
The main task of a draft gear coupler (shock absorber) installed on its movable part is to reduce the longitudinal forces in the formation of the train on the humps and at transient modes of the train. Its serviceable and effective action ensures the safety of the train itself as well as that of the goods transported. In the study of the longitudinal loading of a carriage the problem of improving and introducing new high-performance couples becomes urgent. We designed the constructions and mathematical models of advanced shock absorbers PMC-RBP-120, PMC-RBE-120, AVC-120P, AVC-120E, PA-120 and PA-120M. We managed to obtain a statistical distribution of the longitudinal forces affecting the movable part of the train through the automatic coupler of the carriage equipped with promising devices, under various loading conditions. The results of the calculations of the statistical distributions were used for the calculation and evaluation of performance effectiveness indicators of draft gear couplers as well as the assessment of the likelihood of parametric failure of the devices.
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