Compound Bidirectional Adaptive Liquid Damper

Abstract

The present invention provides a composite two-way adaptive liquid damper. The rectangular tuned liquid damper and the U-shaped tuned liquid column damper are connected through an electromagnetic valve, and the length of the water center line in the U-shaped tuned liquid column damper can be adjusted in real time to retune the natural vibration frequency. The telescopic rod in the drive system can operate the steel partition to separate the rectangular tuned liquid damper to achieve preliminary frequency adjustment, and then precise adjustment is achieved by the opening and closing of the electromagnetic valve. The high-damping rubber coating is applied to the outer surface of the electric gate, and the electric rotating shaft in the drive system can drive the electric gate to rotate, close the electric gate and change the contact area between the liquid in the U-shaped tuned liquid column damper and the high-damping rubber coating to change its frequency and damping ratio respectively, so as to obtain a better vibration control effect. The present invention can simultaneously control the two-way vibration of the structure in the plane and improve its safety and comfort.

Description

Technical Field

[0001] The present invention belongs to the technical fields of civil engineering and vibration control, and particularly relates to a composite two-way adaptive liquid damper. Background Art

[0002] With the development of the economy, a large number of high-rise and super high-rise buildings have sprung up. Such buildings usually have higher requirements for safety and comfort under the influence of loads such as seismic loads and wind loads. The traditional structural system stores and dissipates vibration energy through the structure itself to meet the fortification requirements of the structure. However, the seismic loads, wind loads and other loads themselves are uncertain, and the traditional structural system cannot perform self-adjustment and self-control. Therefore, under the action of such uncertain loads, high-rise and super high-rise buildings need to rely on structural vibration control devices to meet the requirements of safety and comfort.

[0003] A tuned liquid damper is a passive control device commonly used in the vibration control of high-rise and super high-rise buildings. It has a simple structure, low cost and good vibration control effect. However, due to its structural characteristics, only part of the liquid in the water tank participates in the vibration, and the frequency and damping are not adjustable, so it has certain limitations in structural vibration reduction.

[0004] A tuned liquid column damper is a building structure vibration control device with low cost, simple installation and adjustable frequency. The traditional tuned liquid column damper usually can only control the structural vibration in a single direction and cannot achieve multi-directional vibration control. Under the action of external loads with high uncertainty, it is difficult to achieve an ideal vibration control effect. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a composite two-way adaptive liquid damper. By combining a tuned liquid damper and a tuned liquid column damper, it can adjust the frequency and damping of the composite adaptive liquid damper in real time, and at the same time can control the structural vibration in the X direction and Y direction in the plane. Compared with the traditional liquid damper, it can perform two-way vibration control and has a better vibration control effect.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A composite two-way adaptive liquid damper includes: a vibration control part in the X direction in the plane, a vibration control part in the Y direction in the plane, a camera device and a computer.

[0008] The X - direction vibration control part in the plane includes: a U - type tuned liquid column damper. The U - type tuned liquid column damper has a horizontal pipe section, a first vertical pipe section, and a second vertical pipe section. The first vertical pipe section and the second vertical pipe section are respectively located at both ends of the horizontal pipe section and are each communicated with the horizontal pipe section. The mounting plate is fixed to the horizontal pipe section by welding connection or bolt connection. The electric rotating shaft is fixed in the mounting plate by welding connection. The electric gate is connected to the electric rotating shaft by bolt connection, and a high - damping rubber coating is evenly coated on the surface of the electric gate.

[0009] The Y - direction vibration control part in the plane includes: a rectangular tuned liquid damper. The rectangular tuned liquid damper is embedded in the U - shaped cavity of the U - type tuned liquid column damper such that the two side walls of the rectangular tuned liquid damper are respectively in contact with the first vertical pipe section and the second vertical pipe section of the U - type tuned liquid column damper. The two side walls of the rectangular tuned liquid damper are communicated with the U - type tuned liquid column damper through electromagnetic valves. A number of limiting grooves are fixed to the bottom of the rectangular tuned liquid damper by welding connection, and a sealing coating is applied inside the limiting grooves. A number of steel partitions are fixed to the telescopic rod by bolt connection and extend into the rectangular tuned liquid damper, and the servo motor controls the movement of the telescopic rod to change the contact area between the steel partition and the liquid.

[0010] The camera device is used to record the flow state of the liquid inside the compound bidirectional adaptive liquid damper in real - time.

[0011] Wherein: the mounting plate, the electric gate, the steel partition, and the limiting groove form the component system of the liquid damper; the electromagnetic valve, the electric rotating shaft, the telescopic rod, and the servo motor form the driving system of the liquid damper; the camera device and the computer form the computer vision system of the liquid damper. After the computer calculates and measures parameters such as flow rate and liquid level height based on the image information, it controls the driving system through the built - in control algorithm to drive the component system to adjust the damping and frequency of the compound bidirectional adaptive liquid damper.

[0012] Wherein, the U - type tuned liquid column damper changes the damping of the U - type tuned liquid column damper by adjusting the contact area between the high - damping rubber coating on the electric gate and the liquid.

[0013] Wherein, the U - type tuned liquid column damper initially adjusts the frequency of the U - type tuned liquid column damper by closing the electric gate, and then precisely adjusts the frequency of the U - type tuned liquid column damper through the opening and closing of the electromagnetic valve.

[0014] Among them, the rectangular tuned liquid damper preliminarily adjusts the frequency of the rectangular tuned liquid damper by controlling the telescopic rod to raise and lower the steel partition to change the liquid level height, and then precisely adjusts the frequency of the rectangular tuned liquid damper through the opening and closing of the electromagnetic valve.

[0015] Among them, the mounting plate is made of metal material treated with waterproof and rustproof.

[0016] Among them, the thickness of the high-damping rubber coating is 3 cm to 6 cm.

[0017] Among them, the adjustable angle of the electric rotating shaft is 0° to 90°.

[0018] Among them, the adjustable length range of the telescopic rod is 0 to 5 m.

[0019] Among them, the depth of the limiting groove is 8 cm to 15 cm, the thickness of the sealing coating is 5 cm to 10 cm, and the depth of the limiting groove is greater than the thickness of the sealing coating.

[0020] Among them, the number of the steel partitions is 3 to 6.

[0021] Among them, the number of the electromagnetic valves is 24 to 42.

[0022] For the compound bidirectional adaptive liquid damper provided by the present invention, the rectangular tuned liquid damper and the U-shaped tuned liquid column damper are connected through electromagnetic valves, and the length of the water center line in the U-shaped tuned liquid column damper can be adjusted in real time to retune the natural vibration frequency; the telescopic rod in the drive system can operate the steel partition to separate the rectangular tuned liquid damper to preliminarily adjust the frequency, and then the opening and closing of the electromagnetic valve is used for precise adjustment; the high-damping rubber coating is applied to the outer surface of the electric gate, and the electric rotating shaft in the drive system can drive the electric gate to rotate, close the electric gate and change the contact area between the liquid in the U-shaped tuned liquid column damper and the high-damping rubber coating to change its frequency and damping ratio respectively, so as to achieve a better vibration control effect. The present invention can simultaneously control the bidirectional vibration of the structure in the plane and improve its safety and comfort.

[0023] The compound bidirectional adaptive liquid damper proposed by the present invention has the following beneficial effects due to the adoption of the above scheme:

[0024] First, the compound adaptive liquid damper of the present invention uses computer vision for parameter measurement and calculation, and has a great improvement in efficiency and accuracy compared with traditional sensors.

[0025] Second, the composite adaptive liquid damper of the present invention can initially and finely adjust its own frequency, and at the same time can change the damping ratio of the damper, having better adaptability compared with traditional liquid dampers.

[0026] Third, the composite adaptive liquid damper of the present invention combines a composite rectangular tuned liquid damper and a U-shaped tuned liquid column damper, which can simultaneously control the two-way vibration of the structure in the plane, improving its safety and comfort while saving building space. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a preferred embodiment of the composite two-way adaptive liquid damper of the present invention.

[0028] Figure 2 is Figure 1 a schematic side sectional structure diagram of the illustrated embodiment.

[0029] Figure 3 is Figure 1 a schematic structural diagram of the illustrated embodiment from a top view angle.

[0030] Figure 4 It is a control flow chart of the composite two-way adaptive liquid damper of the present invention.

[0031] Reference numerals: 1 - computer, 2 - U-shaped tuned liquid column damper, 3 - high-damping rubber coating, 4 - electric gate, 5 - electric rotating shaft, 6 - mounting plate, 7 - electromagnetic valve, 8 - camera device, 9 - steel partition, 10 - telescopic rod, 11 - servo motor, 12 - composite rectangular tuned liquid damper, 13 - sealing coating, 14 - limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following further describes the present invention in conjunction with the drawings and embodiments, but the embodiments do not limit the present invention. Any similar structures and similar changes using the present invention shall fall within the protection scope of the present invention.

[0033] The composite two-way adaptive liquid damper of the present invention includes: a vibration control part in the X direction in the plane, a vibration control part in the Y direction in the plane, a computer vision system, a component system, and a drive system.

[0034] As Figure 1 shown, it specifically includes: computer 1, U-shaped tuned liquid column damper 2, composite rectangular tuned liquid damper 12, camera device 8, and computer 1.

[0035] In-plane X-direction vibration control section

[0036] The vibration control part in the X direction within the plane is the U-shaped tuned liquid column damper 2. The U-shaped tuned liquid column damper 2 has a horizontal pipe section, a first vertical pipe section, and a second vertical pipe section. The first vertical pipe section and the second vertical pipe section are respectively located at both ends of the horizontal pipe section and are each communicated with the horizontal pipe section. The mounting plate 6 is fixed to the horizontal pipe section by welding connection or bolt connection. The electric rotating shaft 5 is fixed to the inside of the mounting plate 6 by welding connection. The electric gate 4 is connected to the electric rotating shaft 5 by bolt connection. A high-damping rubber coating 3 is evenly coated on the surface of the electric gate 4.

[0037] Among them, the mounting plate 6 is made of a metal material that has been treated for waterproofing and rust prevention. The thickness of the high-damping rubber coating 3 is 3 cm to 6 cm, and the adjustable angle of the electric rotating shaft 5 is 0° to 90°.

[0038] The U-shaped tuned liquid column damper 2 changes the damping of the U-shaped tuned liquid column damper 2 by adjusting the contact area between the high-damping rubber coating 3 on the electric gate 4 and the liquid.

[0039] The U-shaped tuned liquid column damper 2 initially adjusts the frequency of the U-shaped tuned liquid column damper 2 by closing the electric gate 4, and then precisely adjusts the frequency of the U-shaped tuned liquid column damper 2 through the opening and closing of the solenoid valve 7.

[0040] In-plane Y-direction vibration control section

[0041] The vibration control part in the Y direction within the plane is the rectangular tuned liquid damper 12. The rectangular tuned liquid damper 12 is embedded in the U-shaped cavity of the U-shaped tuned liquid column damper 2 such that the two side walls of the rectangular tuned liquid damper 12 are respectively in contact with the first vertical pipe section and the second vertical pipe section of the U-shaped tuned liquid column damper 2. The two side walls of the rectangular tuned liquid damper 12 are communicated with the U-shaped tuned liquid column damper 2 through the solenoid valve 7. A number of limiting grooves 14 are fixed to the bottom of the rectangular tuned liquid damper 12 by welding connection. The inside of the limiting grooves 14 is coated with a sealing coating 13. A number of steel partitions 9 are fixed to the telescopic rod 10 by bolt connection and extend into the rectangular tuned liquid damper 12. The servo motor 11 controls the movement of the telescopic rod 10 to thereby change the contact area between the steel partitions 9 and the liquid.

[0042] Among them, the adjustable length range of the telescopic rod 10 is 0 to 5 m, the depth of the limiting grooves 14 is 8 cm to 15 cm, the thickness of the sealing coating 13 is 5 cm to 10 cm, and the depth of the limiting grooves 14 is greater than the thickness of the sealing coating 13. Among them, the number of steel partitions 9 is 3 to 6, and the number of solenoid valves 7 is 24 to 42.

[0043] The rectangular tuned liquid damper 12 preliminarily adjusts the frequency of the rectangular tuned liquid damper 12 by controlling the telescopic rod 10 to raise and lower the steel partition 9 to change the liquid level height, and then precisely adjusts the frequency of the rectangular tuned liquid damper 12 through the opening and closing of the electromagnetic valve 7.

[0044] Component system

[0045] The component system includes: a mounting plate 6, an electric gate 4, a steel partition 9, and a limit groove 14.

[0046] Drive system

[0047] The drive system includes: an electromagnetic valve 7, an electric rotating shaft 5, a telescopic rod 10, and a servo motor 11.

[0048] Computer vision system

[0049] The computer vision system includes: a camera device 8 and a computer 1.

[0050] The camera device 8 records the flow state of the liquid inside the compound bidirectional adaptive liquid damper in real time. The computer 1 calculates and measures parameters such as the flow rate and liquid level height based on the image information, and controls the drive system to drive the component system to adjust the damping and frequency of the compound bidirectional adaptive liquid damper through the built-in control algorithm.

[0051] By driving the telescopic rod 10, the steel partition 9 can be operated to separate the rectangular tuned liquid damper 12 to achieve preliminary adjustment of the frequency; the high-damping rubber coating 3 is applied to the outer surface of the electric gate 4. By driving the electric rotating shaft 5, the electric gate 4 can be driven to rotate, closing the electric gate 4 and changing the contact area between the liquid in the U-shaped tuned liquid column damper 2 and the high-damping rubber coating 3 to change its frequency and damping ratio respectively; the rectangular tuned liquid damper 12 and the U-shaped tuned liquid column damper 2 are connected through the electromagnetic valve 7 to precisely adjust their natural vibration frequencies.

[0052] The collection, transmission, processing, and analysis of specific data, as well as the corresponding control algorithms, do not belong to the technical problems to be solved by the present invention and are prior arts known to those skilled in the art, so they will not be elaborated here.

[0053] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention in any way. Any change or modification made by any person skilled in the art based on the disclosed technical content shall be regarded as an equivalent effective embodiment and fall within the scope of protection of the technical solution of the present invention.

Claims

1. A composite bidirectional adaptive liquid damper, characterized in that: include: The in-plane X-direction vibration control part comprises: a U-shaped tuned liquid column damper (2), the U-shaped tuned liquid column damper (2) having a horizontal pipe section, a first vertical pipe section and a second vertical pipe section, the first vertical pipe section and the second vertical pipe section are respectively located at two ends of the horizontal pipe section and are respectively connected to the horizontal pipe section, a mounting plate (6) is fixed to the horizontal pipe section by welding or bolting, an electric shaft (5) is fixed in the mounting plate (6) by welding, an electric gate (4) is connected to the electric shaft (5) by bolting, and a high damping rubber coating (3) is evenly coated on the surface of the electric gate (4); The in-plane Y-direction vibration control part comprises: a rectangular tuned liquid damper (12), wherein the rectangular tuned liquid damper (12) is embedded in the U-shaped cavity of the U-shaped tuned liquid column damper (2) so that the two side walls of the rectangular tuned liquid damper (12) are in contact with the first vertical pipe section and the second vertical pipe section of the U-shaped tuned liquid column damper (2) respectively, and the two side walls of the rectangular tuned liquid damper (12) are connected to the U-shaped tuned liquid column damper (2) through an electromagnetic valve (7). The dampers (2) are interconnected, a plurality of limit grooves (14) are fixed to the bottom of the rectangular tuned liquid damper (12) by welding, the interior of the limit grooves (14) is coated with a sealing coating (13), a plurality of steel baffles (9) are fixed to the telescopic rod (10) by bolt connection and extend into the rectangular tuned liquid damper (12), and a servo motor (11) controls the movement of the telescopic rod (10) to thereby change the contact area between the steel baffle (9) and the liquid; A camera device (8) for recording the flow state of the liquid inside the composite bidirectional adaptive liquid damper in real time; and Computer (1); in: The mounting plate (6), the electric gate (4), the steel partition plate (9) and the limiting groove (14) form a component system of the liquid damper; The electromagnetic valve (7), the electric rotating shaft (5), the telescopic rod (10) and the servo motor (11) form a driving system of the liquid damper; The camera device (8) and the computer (1) form a computer vision system for the liquid damper. After the computer (1) calculates and measures the flow rate and liquid level parameters based on the image information, it controls the drive system through a built-in control algorithm to drive the component system to adjust the damping and frequency of the composite bidirectional adaptive liquid damper.

2. The composite adaptive liquid damper according to claim 1, characterized in that: The U-shaped tuned liquid column damper (2) changes the damping of the U-shaped tuned liquid column damper (2) by adjusting the contact area between the high damping rubber coating (3) on the electric gate (4) and the liquid; The U-shaped tuned liquid column damper (2) preliminarily adjusts the frequency of the U-shaped tuned liquid column damper (2) by closing the electric gate (4), and then accurately adjusts the frequency of the U-shaped tuned liquid column damper (2) by switching the electromagnetic valve (7); and / or The rectangular tuned liquid damper (12) changes the liquid level height by controlling the telescopic rod (10) to raise and lower the steel partition (9) to preliminarily adjust the frequency of the rectangular tuned liquid damper (12), and then accurately adjusts the frequency of the rectangular tuned liquid damper (12) by switching the electromagnetic valve (7).

3. The composite adaptive liquid damper according to claim 1, characterized in that: The mounting plate (6) is made of a metal material that has been treated to be waterproof and rust-proof.

4. The composite adaptive liquid damper according to claim 1, characterized in that: The thickness of the high damping rubber coating (3) is 3 cm to 6 cm.

5. The composite adaptive liquid damper according to claim 1, characterized in that: The adjustable angle of the electric rotating shaft (5) is 0° to 90°.

6. The composite adaptive liquid damper according to claim 1, characterized in that: The adjustable length range of the telescopic rod (10) is 0 to 5 m.

7. The composite adaptive liquid damper according to claim 1, characterized in that: The thickness of the sealing coating (13) is 5 cm to 10 cm.

8. The composite adaptive liquid damper according to claim 1, characterized in that: The depth of the limiting groove (14) is 8 cm to 15 cm, the thickness of the sealing coating (13) is 5 cm to 10 cm, and the depth of the limiting groove (14) is greater than the thickness of the sealing coating (13).

9. The composite adaptive liquid damper according to claim 1, characterized in that: The number of the steel partitions (9) is 3 to 6.

10. The composite adaptive liquid damper according to claim 1, characterized in that: The number of the electromagnetic valves (7) is 24 to 42.

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