Energy absorption and vibration reduction device of track structure

Abstract

The invention relates to an assisting device with the energy absorption function, and the assisting device is designed on a track structure. An energy absorption and vibration reduction device is arranged between two steel rails on a track bed. The energy absorption and vibration reduction device comprises a mass block object, a rigid object and a damper. The inherent resonance frequency of the energy absorption and vibration reduction device is identical to the vibration frequency of a wheel / track on a track.

Description

technical field [0001] The invention relates to a rail structure in rail traffic, in particular to an energy-absorbing and shock-absorbing device for the rail structure. Background technique [0002] In the current control methods of vibration propagation, most of them are realized by adjusting the system stiffness, damping and quality parameters. The main function of damping is to convert vibration energy into heat energy. The conversion ability is not only related to the material, but also related to the conversion time. , the greater the damping, the slower its conversion cycle, and the more conversions, the service life will be affected due to the heat generated by its material; the function of the mass is to realize vibration control by consuming kinetic energy through motion. Under the same motion conditions, the faster the mass The larger the kinetic energy is, the greater the kinetic energy will be. Since the system damping and mass parameter adjustment are affected ...

AI Technical Summary

Problems solved by technology

However, although the stiffness of the support structure that reduces the vibration source can reduce the outward propagation of vibration energy, since the energy is not converted and consumed, but concentrated at the front end of the vibration-isolated body, the vibration of this part of the structure is usually aggravated. , and adversely affect the

For example, fasteners with low stiffness are generally used in subways, which often have adverse effects on rail wear and even the service life of vehicle components.

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