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CN-121977039-A - Floating plate type tuning liquid damping device and control method

CN121977039ACN 121977039 ACN121977039 ACN 121977039ACN-121977039-A

Abstract

The invention relates to a floating plate type tuning liquid damping device which comprises a water tank, liquid in the water tank, a floating plate, a sliding connection assembly and a gravity center adjusting assembly, wherein the floating plate is arranged in the water tank, the sliding connection assembly is arranged around the floating plate and is used for sliding connection of the floating plate and the water tank in the vertical direction, the sliding connection assembly is provided with an energy consumption unit for increasing resistance, and the gravity center adjusting assembly is arranged at the top of the floating plate and is used for changing the gravity center of the floating plate. The invention can effectively dissipate vibration energy and remarkably improve vibration reduction effect.

Inventors

  • WANG CHAOHUI
  • CHEN MINGNAN
  • Zheng Leifu
  • XU FENG
  • SU AIPING
  • LU XIANGWEI

Assignees

  • 上海勘测设计研究院有限公司

Dates

Publication Date
20260505
Application Date
20260325

Claims (10)

  1. 1. The floating plate type tuning liquid damping device comprises a water tank (1) and liquid in the water tank (1) and is characterized by further comprising a floating plate (19), a sliding connection assembly and a gravity center adjusting assembly, wherein the floating plate (19) is arranged in the water tank (1), the sliding connection assembly is arranged around the floating plate (19) and is used for sliding connection of the floating plate (19) and the water tank (1) in the vertical direction, the sliding connection assembly is provided with an energy consumption unit for increasing resistance, and the gravity center adjusting assembly is arranged at the top of the floating plate (19) and is used for changing the gravity center of the floating plate (19).
  2. 2. The floating plate type tuning liquid damping device according to claim 1, wherein the sliding connection assembly comprises a vertical guide rail (2), a sliding seat (3) and a flexible connection rope (4), the water tank (1) is of a rectangular structure, the vertical guide rail (2) is vertically and fixedly arranged on four side edges of the water tank (1), the sliding seat (3) is in sliding connection with the vertical guide rail (2), one end of the flexible connection rope (4) is fixedly connected with the sliding seat (3), and the other end of the flexible connection rope (4) is fixedly connected with the side edge of the floating plate (19).
  3. 3. The floating plate type tuning liquid damping device according to claim 2, wherein more than two vertical guide rails (2) are arranged on each side wall of the water tank (1).
  4. 4. The floating plate type tuning liquid damping device according to claim 1 is characterized in that the energy consumption unit comprises a resistance plate (8), auxiliary guide rails (10), supporting frames (9) and connecting rods (7), wherein the auxiliary guide rails (10) are symmetrically arranged on two sides of the vertical guide rails (2), the resistance plate (8) is horizontally arranged below the sliding seat (3), connecting blocks (11) matched with the auxiliary guide rails (10) are fixedly arranged on the side walls of the resistance plate (8), the connecting rods (7) are used for connecting the resistance plate (8) and the sliding seat (3), the supporting frames (9) are symmetrically arranged on two sides of the resistance plate (8) in a triangular structure, and supporting rollers (12) are rotatably arranged on vertical edges, contacted with the water tank (1), of the supporting frames (9).
  5. 5. The floating plate type tuning liquid damping device according to claim 1, wherein the gravity center adjusting assembly comprises an annular guide rail (5) and two movable counterweight units (6), the annular guide rail (5) is fixedly arranged on the top of the floating plate (19), the circle center of the annular guide rail (5) coincides with the center point of the floating plate (19), and the movable counterweight units (6) are slidably connected with the annular guide rail (5).
  6. 6. The floating plate type tuning liquid damping device according to claim 1, wherein the movable counterweight unit (6) comprises a movable frame (16), main rollers (15), auxiliary rollers (13), counterweight portions (14) and a driver, the vertical section of the annular guide rail (5) is of a T-shaped structure, the movable frame (16) is arranged on the top surface of the annular guide rail (5), the main rollers (15) are arranged on the bottom surface of the movable frame (16), the number of the main rollers (15) is more than two, the main rollers (15) are in rolling contact with the top surface of the annular guide rail (5), the auxiliary rollers (13) are respectively arranged on two sides of the annular guide rail (5), the auxiliary rollers (13) are in rolling contact with the bottom surfaces of the annular guide rail (5), the movable frame (16) is provided with extension frames which are rotationally connected with the auxiliary rollers (13), the counterweight portions (14) are fixedly arranged on the movable frame (16), and the driver is used for driving the movable frame (16) to move along the annular guide rail (5).
  7. 7. The floating plate type tuning liquid damping device according to claim 1 is characterized in that the driver comprises a motor (18) and a driving gear (17), the motor (18) is fixedly arranged in the middle of the moving frame (16), the driving gear (17) is fixed on an output shaft of the motor (18), a rack is arranged in the center of the top surface of the annular guide rail (5), and the driving gear (17) is meshed with the rack.
  8. 8. A floating plate type tuning liquid damper according to claim 1, wherein the weight (14) is cast iron, lead or iron ore concrete.
  9. 9. A floating plate type tuning liquid damper according to claim 1, wherein the floating plate (19) has a hollow structure, and a plurality of partition plates are arranged in the floating plate to divide the interior into a plurality of independent sealing chambers.
  10. 10. A control method of the floating plate type tuning liquid damping device according to any one of claims 1 to 9, characterized by comprising the steps of: S1, detecting the shaking direction of a water tank (1); S2, according to the detected shaking direction, controlling two movable weight units (6) in the gravity center adjusting assembly to move along the annular guide rail (5), so that a preset angle relation is formed between the gravity center shifting direction of the floating plate (19) and the shaking direction, and the movement posture of the floating plate (19) along with liquid shaking is adjusted, so that the damping effect of the liquid shaking is changed.

Description

Floating plate type tuning liquid damping device and control method Technical Field The invention relates to the technical field of stabilizing, in particular to a floating plate type tuning liquid damping device and a control method. Background The tuned liquid damper is a vibration damper which consumes vibration energy of a main structure by utilizing dynamic side force generated in the shaking process of liquid in a fixed water tank, and is widely applied to vibration control of engineering structures such as high-rise buildings, ocean platforms, wind power generation towers and the like due to the advantages of low cost, simple maintenance, easiness in installation and the like. Conventional tuned liquid dampers are typically rigid tanks that contain a depth of liquid within them. The vibration damping principle is to use the shaking of the liquid at a specific frequency to consume the energy transferred from the external excitation to the structure. However, the liquid shaking frequency of the traditional tuned liquid damper is single, the damping ratio is generally smaller, the energy consumption effect is limited only by the viscosity of the liquid, the traditional tuned liquid damper is difficult to adapt to a complex and changeable broadband vibration environment, and the control capability on large shaking is weak. In order to enhance the energy consumption effect, the prior art proposes to provide a floating plate or baffle within the liquid. For example, by providing a connection or damping material between the floating plate and the tank wall, the relative movement of the floating plate and the liquid is used to create additional frictional energy consumption, but its energy dissipation efficiency remains to be improved. Disclosure of Invention Aiming at the defects in the prior art, the invention provides a control method of a floating plate type tuning liquid damping device, which aims to solve the problem of low energy release efficiency in the prior art. The floating plate type tuning liquid damping device comprises a water tank, liquid in the water tank, a floating plate, a sliding connection assembly and a gravity center adjusting assembly, wherein the floating plate is arranged in the water tank, the sliding connection assembly is arranged around the floating plate and is used for sliding connection of the floating plate and the water tank in the vertical direction, the sliding connection assembly is provided with an energy consumption unit for increasing resistance, and the gravity center adjusting assembly is arranged at the top of the floating plate and is used for changing the gravity center of the floating plate. Preferably, the sliding connection assembly comprises a vertical guide rail, a sliding seat and a flexible connection rope, the water tank is of a rectangular structure, the vertical guide rail is vertically and fixedly arranged on four sides of the water tank, the sliding seat is in sliding connection with the vertical guide rail, one end of the flexible connection rope is fixedly connected with the sliding seat, and the other end of the flexible connection rope is fixedly connected with the side edge of the floating plate. Preferably, more than two vertical guide rails are arranged on each side wall of the water tank. The energy consumption unit comprises a resistance plate, auxiliary guide rails, a support frame and a connecting rod, wherein the auxiliary guide rails are symmetrically arranged on two sides of the vertical guide rails, the resistance plate is horizontally arranged below the sliding seat, connecting blocks matched with the auxiliary guide rails are fixedly arranged on the side walls of the resistance plate, the connecting rod is used for connecting the resistance plate and the sliding seat, the support frame is symmetrically arranged on two sides of the resistance plate in a triangular structure, and supporting rollers are rotatably arranged on vertical edges, contacted with the water tank, of the support frame. Preferably, the gravity center adjusting assembly comprises an annular guide rail and two movable counterweight units, wherein the annular guide rail is fixedly arranged at the top of the floating plate, the circle center of the annular guide rail is coincident with the center point of the floating plate, and the movable counterweight units are in sliding connection with the annular guide rail. Preferably, the movable counterweight unit comprises a movable frame, main rollers, auxiliary rollers, a counterweight part and a driver, wherein the vertical section of the annular guide rail is of a T-shaped structure, the movable frame is arranged on the top surface of the annular guide rail, the main rollers are arranged on the bottom surface of the movable frame, the number of the main rollers is more than two, the main rollers are in rolling contact with the top surface of the annular guide rail, the auxiliary rollers are respectively arranged on two