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CN-121976622-A - Double-shear nested inertial force enhanced damping device

CN121976622ACN 121976622 ACN121976622 ACN 121976622ACN-121976622-A

Abstract

The invention discloses a double-shear nested inertial force enhanced damping device, which is characterized in that a pair of beam mounting plates are hinged with an upper beam structure and a lower beam structure respectively, one end of a long rod is hinged with the beam mounting plates, the other ends of two upper long rods in an upper long rod pair are hinged with different outer connecting plates respectively, one ends of two lower long rods in a lower long rod pair are hinged with another beam mounting plate, the other ends of two lower long rods in the lower long rod pair are hinged with different outer connecting plates respectively, one ends of two left short rods in a left short rod pair are hinged with one outer connecting plate, the other ends of two left short rods in the left short rod pair are hinged with different inner connecting plates respectively, one ends of two right short rods in a right short rod pair are hinged with the other outer connecting plate respectively, and two ends of a viscous damper are hinged with one inner connecting plate respectively. The invention amplifies the equivalent damping coefficient of the viscous damper, and improves the viscous damping force.

Inventors

  • CHENG ZHIBAO
  • MA HAOMIN
  • SHI ZHIFEI

Assignees

  • 北京交通大学

Dates

Publication Date
20260505
Application Date
20260127

Claims (6)

  1. 1. The double-shear nested inertial force enhanced damping device is characterized by comprising a pair of outer connecting plates (6), a pair of inner connecting plates (5), a pair of beam mounting plates (3), an upper long rod pair (8), a lower long rod pair (10), a left short rod pair (9), a right short rod pair (11) and a viscous damper (14), wherein the pair of beam mounting plates (3) are hinged with an upper beam structure and a lower beam structure respectively; One end of two upper long rods in the upper long rod pair (8) is hinged with one beam mounting plate (3), and the other ends of the two upper long rods in the upper long rod pair (8) are respectively hinged with different outer connecting plates (6); one end of two lower long rods in the lower long rod pair (10) is hinged with the other beam mounting plate (3), and the other ends of the two lower long rods in the lower long rod pair (10) are respectively hinged with different outer connecting plates (6); one end of each of the two left short rods in the left short rod pair (9) is hinged with one outer connecting plate (6), and the other ends of the two left short rods in the left short rod pair (9) are respectively hinged with different inner connecting plates (5); one end of two right short rods in the right short rod pair (11) is hinged with the other outer connecting plate (6), and the other ends of the two right short rods in the right short rod pair (11) are respectively hinged with different inner connecting plates (5); The two ends of the viscous damper (14) are respectively hinged with an inner connecting plate (5).
  2. 2. A double shear nested inertial force enhancing damping device according to claim 1, characterized in that an inner counterweight (13) is fixed to the outer side of the inner connecting plate (5).
  3. 3. A double shear nested inertial force enhancing damping device according to claim 1, characterized in that an outer counterweight (12) is fixed to the outer side of the outer connecting plate (6).
  4. 4. The dual shear nested inertial force enhanced damping device according to one of claims 1 to 3, wherein the upper long rod and the lower long rod are equal in size and are both long rods, the left short rod and the right short rod are equal in size and are both short rods, and the ratio of the long rods to the short rods is (5 to 6): 1.
  5. 5. The double-shear nested inertial force enhanced damping device according to claim 4, wherein the included angle between two upper long rods in the upper long rod pair (8) and the included angle between two lower long rods in the lower long rod pair (10) are 20-30 degrees.
  6. 6. The double-shear nested inertial force enhanced damping device according to claim 4, wherein the included angle between two left short rods in the left short rod pair (9) and the included angle between two right short rods in the right short rod pair (11) are 25-35 degrees.

Description

Double-shear nested inertial force enhanced damping device Technical Field The invention belongs to the technical field of building dampers, and particularly relates to a double-shear nested inertial force enhanced damping device. Background In the structure of the civil engineering field in China at present, the unfavorable vibration of the structure generated under the power action input of different external environments is one of the serious problems faced by the structural engineering field, especially the structural vibration reduction field. The adverse vibration of the structure caused by the external power action with different hazard degrees can weaken the use comfort of the structure, and the structure is damaged or even severely damaged when serious, so that the life and property safety of people are greatly threatened, and the social development of China is seriously influenced. Accordingly, there is a great need for a device that mitigates the adverse structural vibrations caused by the power input of different external environments. The vibration relief measures aiming at the unfavorable vibration of the structure caused by the power load input of different external environments mainly comprise four types of passive control measures, active control measures, semi-active control measures and hybrid control measures. The active control measures, the semi-active control measures and the hybrid control measures depend on direct input of external energy sources (especially electric energy), program regulation and control are needed to be realized remotely through a computer, the technical cost and the application difficulty are obviously increased, and therefore, the application of the method is greatly restricted. The passive control measures completely eliminate the technical disadvantages, so that the vibration relief measures with the largest proportion are applied in the current structural vibration reduction field. Among them, the viscous damper 14 is one of the most widely used passive control measures at present, which is often designed and installed in different building structures by engineering and scientific researchers in the field of structural vibration reduction to alleviate structural adverse vibrations caused by power action inputs of different external environments. However, with the high-speed development of modern economic society in China, the requirements of people on the safety and comfort level of the structure are higher and higher, and the conventional viscous damper is difficult to meet the requirements of the current social development. The damping ratio of the conventional viscous damper is very limited, if the viscous damper with a larger damping ratio is to be produced, the specification (size and volume) of the device is increased, which definitely occupies more building use space and increases technical popularization difficulty, the manufacturing cost of the viscous damper with a larger specification is also more expensive, which seriously hinders further popularization and application, the disassembly and replacement of the viscous damper are complicated, the maintenance, the repair and the replacement are inconvenient, and the damping ratio cannot be flexibly adjusted during the use period, so that the functions are limited. Therefore, the research and development of the more efficient damping device has good application value. Disclosure of Invention Aiming at the problems existing in the background technology, the invention provides a double-shear nested inertial force enhanced damping device, which comprises a pair of outer connecting plates, a pair of inner connecting plates, a pair of beam mounting plates, an upper long rod pair, a lower long rod pair, a left short rod pair, a right short rod pair and a viscous damper, wherein the pair of beam mounting plates are respectively hinged with an upper beam structure and a lower beam structure; One end of two upper long rods in the upper long rod pair is hinged with one beam mounting plate, so that an upper outer shear structure is formed; One end of two lower long rods in the lower long rod pair is hinged with the other beam mounting plate, so that a lower outer shear structure is formed; one end of each of the two left short rods in the left short rod pair is hinged with one outer connecting plate, so that a left outer scissor structure is formed; One end of each right short rod in the pair of right short rods is hinged with the other outer connecting plate, so that a right outer scissor structure is formed; the two ends of the viscous damper are respectively hinged with an inner connecting plate. The inner balancing weight is fixed on the outer side of the inner connecting plate. The upper long rod and the lower long rod are equal in size and are long rods, the left short rod and the right short rod are equal in size and are short rods, and the ratio of the long rods to the short rods is (5-6): 1. The outside