Tuned mass damper for wind-induced vibration control of a cylindrical high-rise structure with adjustable stiffness and damping and design method and adjustment method thereof

By designing adjustable suspension and damping units, the problem of adjusting stiffness and damping parameters on-site for existing cylindrical tall structures with suspended tuned mass dampers has been solved, thus improving the efficiency and effectiveness of structural vibration control.

CN118007823BActive Publication Date: 2026-07-24HARBIN INST OF TECH
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Patent Information

Application Number
CN202410137167.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-01
Publication Date
2026-07-24
Estimated Expiration
2044-02-01

AI Technical Summary

Technical Problem

Existing cylindrical tall structure suspended tuned mass dampers are difficult to adjust in terms of stiffness and damping parameters on-site, which affects their structural vibration reduction effect.

Method used

A tuned mass damper was designed, comprising a ring-shaped moving mass unit, a suspension unit, an adjustable stiffness unit, a ring-shaped fixed support platform, and an adjustable damping unit. The stiffness and damping parameters are adjusted by adjusting the length of the suspension cable and the distance between the permanent magnet and the conductive copper plate.

Benefits of technology

This technology enables convenient on-site adjustment of the natural frequency and damping parameters of the suspended tuned mass damper, improving the effectiveness of structural vibration control and avoiding the maintenance costs and parameter errors associated with traditional dampers.

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Abstract

The present application relates to a kind of stiffness and adjustable damping of cylindrical high-rise structure wind vibration control tuned mass damper and its design method, adjusting method.Ring movement mass unit is connected with chimney top by suspension unit, adjustable stiffness unit is arranged between ring movement mass unit and chimney structure, for adjusting the overall stiffness and natural frequency of tuned mass damper.Adjustable damping unit is composed of permanent magnet, magnet plate and conductive copper plate arranged on the upper surface of ring fixed support platform and the lower surface of ring movement mass unit, magnet plate on the upper surface of ring fixed support platform is equipped with lifting nut, for adjusting the distance between conductive copper plate on the lower surface of ring movement mass unit and permanent magnet plate on the upper surface of ring fixed support platform, to realize the adjustment of tuned mass damper damping parameter.The tuned mass damper involved in the present application can adjust the stiffness and damping parameter on site, to improve the wind vibration control efficiency of tuned mass damper.
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