Steel rail damper and design method

By installing multiple damping modules filled with different particles on the rail and a rail damper with elastic parts, the problem of difficulty in reducing vibration noise in multiple frequency segments in the prior art is solved, and more efficient vibration damping effect and good environmental tolerance are achieved.

CN119824737APending Publication Date: 2025-04-15CRRC QINGDAO SIFANG CO LTD
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Patent Information

Application Number
CN202510018893.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

The existing rail damping technology is difficult to effectively reduce vibration noise in multiple frequency segments, and the material is prone to aging and has poor environmental tolerance.

Method used

A rail damper is designed to form a resonant system by installing multiple damping modules inside the housing and setting elastic parts between the housing and the damping module. At least two damping modules are filled with damping particles of different particle diameters and/or fill rates to accommodate vibration damping needs in different frequency bands.

Benefits of technology

Effective vibration damping of multiple frequency segments is achieved, the overall vibration damping effect and dynamic response performance are enhanced, and the environmental tolerance is good.

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Abstract

The invention provides a steel rail damper. The steel rail damper comprises a shell, a plurality of damping modules and an elastic piece. The shell is suitable for being assembled on a steel rail; the multiple damping modules are sequentially installed in the shell in the extending direction of the steel rail, and the damping modules are filled with damping particles in a free state; the elastic piece is arranged between the plurality of damping modules and the inner wall of the shell; wherein at least two damping modules are filled with damping particles with different particle diameters and / or filling rates. The invention further provides a design method applied to the steel rail damper.
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