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Low-frequency two-degree-of-freedom swinging type TMD vibration control device for high-rise structure

A degree of freedom, pendulum technology, applied in building components, protective buildings/shelters, building types, etc. Simple installation and maintenance, compact structure design effect

Pending Publication Date: 2019-02-01
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the frequency modulation mass damper, the frequency modulation liquid damper has a sensitive response and no friction problem, but it has a large structure and takes up a lot of space, and there are risks such as leakage and freezing of the liquid.

Method used

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  • Low-frequency two-degree-of-freedom swinging type TMD vibration control device for high-rise structure
  • Low-frequency two-degree-of-freedom swinging type TMD vibration control device for high-rise structure
  • Low-frequency two-degree-of-freedom swinging type TMD vibration control device for high-rise structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, the low-frequency two-degree-of-freedom pendulum TMD vibration control device for towering structures provided by this embodiment includes an elastic support 1, a first mass block 2, a first swing rod 3, and a two-degree-of-freedom swing gearbox 4 , the second swing rod 5, the second mass block 9 and the damping energy dissipation device 7, one end of the elastic support 1 is rigidly connected to the inner wall of the barrel body 8 of the towering structure, and the other end is flexibly connected to the inner wall of the barrel body 8 of the towering structure , the two-degree-of-freedom swing gearbox 4 is fixed on the elastic support 1, and the two-degree-of-freedom swing gearbox 4 includes a box body 4-GearBox and two groups of transmission units (see Image 6 As shown), the two sets of transmission units are symmetrically installed on the box body 4-GearBox in a mirror image up and down. The spur gears on both sides of them mesh with each oth...

Embodiment 2

[0044] The difference from Embodiment 1 is that the damping energy dissipation device 7 described in this embodiment is a hydraulic damping cylinder with four times the stroke of the movable pulley, such as Figure 10 As shown, the movable pulley quadruple-stroke synergistic hydraulic damping cylinder includes a cylinder 7-B-1, a piston 7-B-2, a piston rod 7-B-3, a first fixed pulley 7-B-4, a second fixed pulley 7-B-7, the first movable pulley 7-B-5, the second movable pulley 7-B-6 and the flexible rope 7-B-8, wherein the cylinder 7-B-1 is fixed vertically downward On the inner wall of the barrel body 8 of the towering structure, the first fixed pulley 7-B-4 is fixed on the top of the cylinder body, and the second fixed pulley 7-B-7 is fixed on the inner wall of the barrel body of the towering structure. The piston 7-B-2 is placed in the cylinder 7-B-1, one end of the piston rod 7-B-3 is fixedly connected with the piston 7-B-2, and the other end extends out of the cylinder 7-B...

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Abstract

The invention discloses a low-frequency two-degree-of-freedom swinging type TMD vibration control device for a high-rise structure. The low-frequency two-degree-of-freedom swinging type TMD vibrationcontrol device includes an elastic support, a two-degree-of-freedom swinging gear box, a plurality of damping energy dissipation devices, a plurality of first mass blocks, a plurality of second mass blocks, a first swinging rod and a second swinging rod, one end of the elastic support is rigidly connected with the inner wall of a barrel body, and the other end of the elastic support is flexibly connected with the inner wall of the barrel body; the two-degree-of-freedom swinging gear box is fixed to the elastic support and includes a box body and two groups of transmission units, the two groupsof transmission units are symmetrically mounted on the box body in an up-down mirroring mode, and the two transmission units contain third swinging rods with two rotational degrees of freedom in thehorizontal plane correspondingly and are connected with the first swinging rod and a second swinging rod correspondingly; and the first mass blocks are arranged on the first swinging rod in a superimposition mode, the second mass blocks are installed on the second swinging rod in a superimposition mode, and the damping energy dissipation devices are circumferentially and evenly distributed on theinner wall of the barrel body and connected with the first swinging rod correspondingly. According to the low-frequency two-degree-of-freedom swinging type TMD vibration control device for the high-rise structure, low-frequency vibration of the high-rise structure can be controlled, and the safety and functional requirements of the high-rise structure are met.

Description

technical field [0001] The invention relates to the technical field of high-rise structures (wind power generation towers, TV towers, high-rise buildings, etc.) and vibration control, in particular to a low-frequency two-degree-of-freedom pendulum TMD vibration control device for high-rise structures. Background technique [0002] Towering structures are used in many fields such as wind power generation, radio and television towers, communications, and meteorology. A towering structure is a tall and flexible structure with a large ratio of height to lateral dimension, and has a large dynamic response to wind vibration and earthquake action. The excessive vibration displacement and acceleration of the wind turbine will lose power generation and even affect the normal operation of the wind turbine. High-rise buildings, broadcasting and TV towers with sightseeing needs, etc., need to limit vibration acceleration to meet personal comfort. The existing control technologies for ...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/02E04H9/021
Inventor 王诚辉张维庆郭彪李学旺周名军彭恒
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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