Method for reducing undulatory wear of steel rails

Abstract

The invention discloses a method for reducing the undulatory wear of steel rails. The steel rails are supported by sleepers and fixed to the sleepers through fasteners in fastened and pressed modes. Tracks of the steel rails guide wheels, and the steel rails and the wheels interact with each other to form a wheel rail system. According to the method for reducing the undulatory wear of the steel rails, the wheel rail flexibility difference and steel rail vibration, particularly in the wheel rail system transverse direction, are reduced. Through the method for reducing the undulatory wear of thesteel rails, vibration noise can be reduced, the undulatory wear of the steel rails is reduced, the wheel rail relation is improved accordingly, wheel rail vibration and noise are reduced, the service lives of the steel rails and the wheels are prolonged, the effectiveness of the track fasteners is improved, and the travelling safety is improved finally.

Description

technical field [0001] The invention relates to the technical field of railway track protection, in particular to a method for reducing rail wave abrasion. Background technique [0002] The abnormal wavy wear of rails caused by urban rail transit not only directly causes severe vibration and noise environmental problems of the rails and the environment, but also deteriorates the dynamic stability of the wheels and rails, leading to component failures that endanger driving safety, and greatly reduces the service life and increase of rails and wheels. The daily maintenance workload is reduced, and it also directly affects the efficiency of rail transit transportation. [0003] The formation and development mechanism of rail wave wear is very complicated. Since the 1970s, a large number of scholars and researchers at home and abroad have been engaged in research in this area for a long time, seeking the law of the generation mechanism and development of wave wear and the preven...

AI Technical Summary

Problems solved by technology

[0002] The abnormal wavy wear of rails caused by urban rail transit not only directly causes severe vibration and noise environmental problems of the rails and the environment, but also deteriorates the dynamic stability of the wheels and rails, leading to component failures that endanger driving safety, and greatly reduces the service life and increase of rails and wheels. The daily maintenance workload is reduced, and it also directly affects the efficiency of rail transportation

[0003] The formation and development mechanism of rail wave wear is very complicated. Since the 1970s, a large number of scholars and researchers at home and abroad have been engaged in research in this area for a long time, seeking the law of the generation mechanism and development of wave wear and the prevention and control measures. Theoretical research and experimental research, but there are many factors affecting the interaction between the vehicle and the track, the dynamic characteristics of the vehicle wheel and bogie system and the track system, the material characteristics of the wheel and rail, and the rolling contact conditions, the excitation of the vehicle operating characteristics and the initial roughness of the wheel and rail surface The complexity of roughness makes it very difficult to study the causes and control of rail wave wear, and people still have not given a consistent explanation and effective solution to the causes and control methods

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