Oбґрунтування профілю колісних пар для високошвидкісних поїздів

Abstract

UA: Зі збільшенням швидкостей руху, зі зростанням обсягів і номенклатури вантажів, що перевозяться, а також з розвитком пасажирських перевезень назріла необхідність у проведенні експериментальних і теоретичних досліджень процесів, що відбуваються при взаємодії рухомого складу й колії, з метою забезпечення безпеки руху, задовільних динамічних якостей екіпажів і схоронності вантажів, що перевозяться.

EN: With increasing speeds, with increasing volume and range of goods transported, as well as with the development of passenger traffic there is a need to conduct experimental and theoretical studies of the processes occurring in the interaction of rolling stock and track, in order to ensure traffic safety, satisfactory dynamic qualities of crew and safe delivery goods. These studies on various aspects of the rolling stock and the way of interaction over time, began to be formed as a separate branch of science. Most of them were devoted to the choice of the profile of the wheels of wheelsets rolling stock. Attempts to unify the profile to normalize some of its elements, primarily affecting the traffic safety have been many times. In order to reduce lateral wear of rails and wheel flanges undercut it was made complex investigations, mainly experimental, for the study of the wear of the wheels and tires of finding a rational profile wheels. It should be noted that the development of profiles of wheels used analytical methods of research, field experiments and performance monitoring, which did not allow sufficient detail to investigate the effect on the profile of the dynamic qualities of the crew and the wear characteristics of wheelsets and rails. At the present stage of development of theoretical methods for the study of dynamics of railway vehicles and their interaction with the way and means of computing and measurement technology capabilities to find the optimum combination of wheel and rail profiles have grown immeasurably.