Rail transit vibration and noise reduction method based on modular steel rail particle damper

A particle damper, vibration reduction and noise reduction technology, applied in the field of dampers, can solve problems such as the inability of dampers to handle broadband noise, and achieve the effect of reducing broadband noise

Active Publication Date: 2021-07-27
THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rail traffic vibration and noise reduction method based on a modular rail particle damper, aiming at solving the problem that the damper in the prior art cannot handle The problem of broadband noise generated in the rail running environment

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  • Rail transit vibration and noise reduction method based on modular steel rail particle damper
  • Rail transit vibration and noise reduction method based on modular steel rail particle damper
  • Rail transit vibration and noise reduction method based on modular steel rail particle damper

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Embodiment Construction

[0060] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0061] Please also see Figure 1-Figure 20 , the present invention provides some embodiments of a rail traffic vibration and noise reduction method based on a modular rail particle damper.

[0062] The rail traffic vibration reduction and noise reduction method based on the modular rail particle damper of the present invention is applied to the rail system, such as figure 1 Shown, the track system of the embodiment of the present invention comprises:

[0063] track 1;

[0064] Based on modular rail particle dampers;

[0065] Wherein, the particle damper for modular steel rail is arra...

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Abstract

The invention discloses a rail transit vibration and noise reduction method based on a modular steel rail particle damper, and the method comprises the steps: determining a target vibration reduction module corresponding to a vibration frequency component according to the vibration frequency component of a rail, wherein the number of the target vibration reduction modules is multiple; connecting the target vibration reduction module by adopting a connecting piece so as to form a particle damper; and installing the particle damper is at the rail waist position of the rail so as to conduct vibration and noise reduction on the rail. The target vibration reduction modules are connected through the connecting pieces to form the particle damper, a wide vibration reduction frequency range can be formed by adopting the different target vibration reduction modules, and therefore the particle damper is suitable for reducing broadband vibration and noise generated in the steel rail operation environment.

Description

technical field [0001] The invention relates to the technical field of dampers, in particular to a rail traffic vibration and noise reduction method based on a modular rail particle damper. Background technique [0002] Rail noise caused by violent wheel-rail interaction has been a global concern. Great efforts have been expended to reduce noise, including noise barriers, sound-absorbing materials, and other passive methods. In the prior art, as a preventive method against noise sources, rail dampers have been widely used by suppressing rail vibration. However, the rail dampers currently in use work in a relatively limited vibration frequency range, which is insufficient to deal with the broadband noise (500-2000 Hz) generated in different rail operating environments. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a rail traffic vibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00
CPCE01B19/003
Inventor 萨贾迪·阿勒哈萨姆·赛义德·马苏德倪一清林志轩张超
Owner THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST
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