Dynamic vibration absorbing device and f-rail structure suitable for medium and low-speed maglev vehicle f-rail

Abstract

The invention relates to the technical field of vibration and vibration control of the rail transit, in particular to a dynamic vibration absorbing device applicable to an F-track of a medium-and-low-speed maglev train, and an F-track structure. The dynamic vibration absorbing device comprises a connection seat and a steel bar, one end of the steel bar is fixed to the connection seat, the other end of the steel bar is a free end, a height difference exists between the steel bar and the installation surface of the connection seat, and a damping rubber material is pasted on the steel bar. The F-track structure comprises an F-track body and the dynamic vibration absorbing device, and the connection seat of the dynamic vibration absorbing device is fixed on the lower surface of a cantilever part of the F-track body. The dynamic vibration absorbing device applicable to the F-track of the medium-and-low-speed maglev train, and the F-track structure have the beneficial effects that the structure is simple and reliable, the assembly and the disassembly are convenient, the cost performance is excellent, the vibration and noise of the F-track generated during passing of the maglev train can be effectively reduced, the service life of the F-track can be prolonged, and the dynamic vibration absorbing device applicable to the F-track of the medium-and-low-speed maglev train, and the F-track structure have a broad prospect in actual engineering application.

Description

technical field [0001] The invention relates to the technical field of vibration and vibration control of rail transportation, in particular to a dynamic vibration absorbing device and an F-rail structure suitable for the F-rail of a medium-low speed maglev vehicle. Background technique [0002] Compared with wheel-rail trains and high-speed maglev trains, medium and low-speed maglev trains have four distinctive features: safety, quietness, greenness, and economy. Its cost per kilometer and operation and maintenance costs are lower than those of subways and light rails. This shows that medium and low speed maglev has obvious advantages and broad prospects in urban rail transit. At present, there are three medium and low speed maglev lines under construction and planning in China. [0003] The track used by medium and low-speed maglev trains is its unique F-shaped steel rail (also known as F rail). The maglev train is suspended by the electromagnet excitation installed on t...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a simple structure, good stability, wide applicable frequency range, safety and long life dynamic vibration absorbing device suitable for the F rail of medium and low speed maglev trains, to solve the problem of F rail used in low and medium speed maglev trains. The rail produces excessive vibration and noise problems

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