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Magnetic-fluid change type regulation-liquid column damper

A technology for tuning liquid column damping and magnetorheological fluid, applied in vibration suppression adjustment, non-rotation vibration suppression, etc., can solve problems such as inconvenience, and achieve the effect of clear working principle, small space, and simple structure

Inactive Publication Date: 2007-11-14
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this tuned liquid column damper passively adjusts the size of the horizontal section valve, which is inconvenient in practical application.

Method used

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  • Magnetic-fluid change type regulation-liquid column damper
  • Magnetic-fluid change type regulation-liquid column damper

Examples

Experimental program
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Embodiment Construction

[0025] As shown in Figure 1, the magnetorheological tuning liquid column damper of the present invention comprises a U-shaped pipe 17 with a horizontal pipe section 14 at the bottom, and a magnetorheological fluid is fixedly installed in the horizontal pipe section 14 of the U-shaped pipe 17 damper 18, and the two ends of the core rod 4 of the magnetorheological fluid damper 18 are respectively located outside the corresponding two ends of the magnetorheological fluid damper 18, and the two ports of the steel cylinder 11 of the magnetorheological fluid damper 18 There is a sealing structure between the core rod 4, and a piston 19 is fixedly installed at both ends of the core rod 4, and the piston 19 can move axially with the core rod 4 in the horizontal pipe section 14 and keep The U-shaped tube cavity on both sides of the piston 19 is sealed and separated.

[0026] As shown in FIG. 1 , the U-shaped pipe 17 is composed of two vertical pipe sections 16 and a horizontal pipe sec...

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Abstract

The present invention discloses a magneto-rheological dampers-tuned liquid column, which includes a horizontal tube at the bottom of the U-shaped tube,its character is: In the horizontal segment of he U-tube installed a magneto-rheological fluid damper, the ends of core rod are located in the corresponding external the Magneto-rheological fluid damper, between the end of the steel tube of the magneto-rheologica fluid damper and core rob installed a sealed structure. Two ends of the core rob are fixed pistons which can move in axial direction attending the core rob and keep apart from the two sides of the piston sealed in the horizontal tube. It adapts to the magneto-rheological fliud damper to control damper force, so that the characteristics of the invention is energy small, simple structure, low cost, easy to control adm high efficiency.

Description

technical field [0001] The invention relates to a tuned liquid column damper mainly used for structural vibration control of high-rise buildings, long-span bridges, ocean platforms, etc., and further refers to a tuned liquid column damper that can realize semi-autonomous control by using a magnetorheological fluid damper. Background technique [0002] The magnetorheological damper is a kind of semi-active control device that uses magnetorheological fluid as the working medium. Magneto-rheological fluid is a smart material invented in recent years. It is mainly composed of non-magnetic liquid and microscopic particles with high magnetic permeability and low hysteresis uniformly dispersed in it. Under the action of a magnetic field, the magnetorheological fluid can quickly and reversibly change from a Newtonian liquid with good fluidity to a plastic solid with high viscosity and low fluidity within milliseconds; once the magnetic field is removed, it will quickly change back t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/53
Inventor 王修勇
Owner HUNAN UNIV
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