Power vibration absorbing energy consuming device for delaying steel rail corrugation development

Abstract

The invention discloses a power vibration absorbing energy consuming device for delaying steel rail corrugation development. Two resonators symmetrically arranged on the two sides of a steel rail areincluded and connected to a rail web of a steel rail. The vibration frequency of the resonators is set to the predominant frequency due to forced vibration caused by steel rail corrugation when a train passes through the corresponding position. Each resonator is connected with at least one power vibration absorber. By application of the power vibration absorbing energy consuming device for delaying steel rail corrugation development, the resonators are arranged on the two sides of the rail web of the steel rail, the steel rail vibration energy is led to the resonators, the power vibration absorbers connected to the resonators are utilized for absorbing and consuming vibration energy, and accordingly the purpose of reducing steel rail vibration is achieved. Since the vibration frequency ofthe resonators is set to the steel rail corrugation frequency at the corresponding position, the device can effectively restrain harmful vibration of the steel rail at the corrugation frequency band,the purpose of reducing steel rail corrugation development is achieved, and the device is simple in structure, convenient to use and good in effect.

Description

technical field [0001] The invention relates to the technical field of rail transit engineering, in particular to a dynamic vibration-absorbing and energy-consuming device for delaying the development of rail corrugation. Background technique [0002] With the leap-forward development of my country's high-speed railway and urban rail transit construction, the operating environment of trains has become complex and diverse, which makes the damage of train and track components more and more serious. Wheel-rail contact damage, especially rail wavy Abrasion is one of the very significant problems. [0003] Rail corrugation occurs not only on high-speed rails, but also in medium- and low-speed rail transit such as subways. When the train passes through the corrugation section of the rail, it will not only cause a sharp increase in the wheel-rail force, but also cause severe vibration of the track and rolling stock and aggravate the noise, which seriously affects the running qualit...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the existing damping vibration absorption technology, although it can absorb a part of the energy of the rail vibration, but it cannot accurately suppress the vibration of the fixed frequency caused by the rail corrugation wavelength when the train passes, and the damping effect of the material attached to the side of the rail It is difficult to obtain a relatively large increase, and the effect of inhibiting the development of rail corrugation is general. The dynamic vibration absorber technology can only absorb and consume the vibration energy at the natural frequency of the rail. Ratio) is inconsistent with the natural frequency of the rail, there is no shortage of improving the beneficial effect of corrugation development, and a dynamic vibration-absorbing energy-consuming device for delaying the development of rail corrugation is provided

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