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Tuned liquid damper for realizing inerter function based on guide rail type planetary gear

A technology for tuning liquid damping and planetary gears, applied in belts/chains/gears, vibration suppression adjustment, springs/shock absorbers, etc., which can solve the problems that affect the use function and experience of the structure, the pure water viscous damping is small, and the shaking is violent, etc. problems, to achieve high-efficiency structural vibration control, improve energy absorption effect, and improve the effect of frequency bandwidth

Active Publication Date: 2022-07-05
CHINA RAILWAY CONSTR GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For traditional TLD devices, when the water tank is externally excited, the water in the container will slosh greatly. When the excitation frequency is close to the natural frequency of the water tank, the water in the water tank will sway more violently, which may affect the use of the structure. Function and use experience, this is due to the small viscous damping provided by pure water and the shaking is too violent

Method used

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  • Tuned liquid damper for realizing inerter function based on guide rail type planetary gear
  • Tuned liquid damper for realizing inerter function based on guide rail type planetary gear
  • Tuned liquid damper for realizing inerter function based on guide rail type planetary gear

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Embodiment

[0042] The specific implementation steps are as follows:

[0043] The office building is a super high-rise frame-core tube structure, 260m high, 50m long from east to west, 50m long from north to south, with a total construction area of ​​150,000m 2 , the total mass of the structure is 840,000 tons, and the basic wind pressure is 0.45kN / m 2 . Because the top floor of the office building shakes seriously under the action of the strong wind, causing discomfort to the indoor personnel, it is necessary to assume that the TLD device is used for vibration control on the building. If a traditional TLD is set up inside the office building, the office building needs to have 160 TLDs in total. The water tank of each TLD is 8.05m long, 7.24m wide, 0.9m deep, and the total water quality is 840 tons, which is 1% of the total building mass. %, the water sloshing frequency in the water tank is adjusted to the first-order frequency of the structure at 1.135rad / s, so that the excitation freq...

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Abstract

The invention discloses a tuned liquid damper for realizing an inerter function based on a guide rail type planetary gear. The tuned liquid damper comprises a mounting base, an inerter vibration reduction system, a water tank mechanism and a nitrogen spring, the inerter vibration reduction system comprises a rack arranged on the mounting base, a first-stage gear meshed with the rack and an inerter connected with the first-stage gear, and the side face of the inerter is connected with a guide rail; the water tank mechanism is arranged on the guide rail; one end of the nitrogen spring is connected with the water tank mechanism, the other end of the nitrogen spring is connected with the mounting base, the mounting base is connected with the pre-pressing nitrogen spring pressure applying device, the pre-pressing nitrogen spring pressure applying device is connected with the pre-pressing nitrogen spring, and the other end of the pre-pressing nitrogen spring is connected with the rack. According to the tuned liquid damper for achieving the inerter function based on the guide rail type planetary gear, shaking of liquid in the water tank is effectively controlled, the TLD damping effect is enhanced, and the energy consumption efficiency and the TLD space utilization rate are improved.

Description

technical field [0001] The invention relates to the technical field of dampers, in particular to a tuned liquid damper that realizes inertial capacity function based on a guide-rail type planetary gear. Background technique [0002] In recent years, the field of civil engineering has paid more and more attention to structural vibration control technology. Various types of dampers are widely used in various building structures to resist the adverse effects of wind loads and earthquakes on buildings. Among them, the Tuned Liquid Damper (TLD) has attracted extensive attention from scholars and engineering designers in civil engineering because of its low cost, easy installation, and low maintenance cost, and has been put into engineering practice. The tuned liquid damper (TLD) is a container with a specified shape and liquid fixed on the structure. The mechanism of its vibration control on the structure is: during the vibration of the structure, the inertial force of the water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/02F16F15/023F16H33/20E04B1/98
CPCF16F15/02F16F15/0232F16H33/20E04B1/98Y02B10/30
Inventor 周大兴曹青孙澔鼎何浩祥
Owner CHINA RAILWAY CONSTR GROUP
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