Tuned mass damper with speed locking function for building
By introducing a velocity-locked damper and a mass block into the tuned mass damper, the problem of the narrow applicability of existing tuned mass dampers is solved, and effective vibration reduction effect is achieved under various vibration conditions.
Patent Information
- Application Number
- CN202423231804.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The limitation of existing tuned mass dampers having a fixed operating frequency results in a narrow range of applications, making them difficult to effectively cope with various vibration excitations.
A tuned mass damper with velocity locking function for building applications was designed. By adding a velocity-locking damper and an additional mass block, the vibration is offset or reduced by utilizing the motion of the mass block in the opposite direction to the vibration of the building structure. Combined with the energy absorption of the velocity-locking damper during high vibration, a vibration reduction effect at multiple frequencies is achieved.
This expands the applicability of tuned mass dampers, enabling them to effectively reduce the vibration amplitude of building structures at different vibration frequencies and improve vibration reduction performance.
Smart Images
Figure CN223706765U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building, specifically related to building with speed locking function's tuned mass damper. BACKGROUND
[0002] Among many passive control devices, the tuned mass damper is a control device that is earlier applied in building structure, and is a classic and reliable and mature dynamic vibration absorber. The tuned mass damper is mainly composed of spring, damper and mass block, and its working principle is to use the inertia force or active control force of the mass block to achieve resonance energy absorption and reduce structural response. The existing tuned mass damper works through fixed vibration frequency, and has narrow application range CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent.
[0004] Therefore, the utility model adopts the technical scheme of building with speed locking function's tuned mass damper, including upper frame body, lower frame body and the mass block and speed locking damper being arranged between upper frame body and lower frame body, and the mass block is connected through a plurality of connecting components between upper frame body and lower frame body, the connecting component includes stud and two nuts, and the both ends of stud are connected with two nuts after being threaded through upper frame body and lower frame body, the mass block is provided with the eye, and the eye is sleeved on the corresponding stud, and the spring is arranged between the eye and lower frame body, the spring is sleeved on the corresponding stud, and the both ends of spring are respectively abutted on the eye and lower frame body, and the both ends of speed locking damper are respectively connected with mass block and lower frame body.
[0005] The connecting component has four in total.
[0006] The mass block is provided with first base, and the upper end of speed locking damper is connected with first base through first pin shaft, and the lower frame body is provided with second base, and the lower end of speed locking damper is connected with second base through second pin shaft.
[0007] Compared with the prior art, the building tuned mass damper with speed locking function has the following beneficial effects: the building tuned mass damper with speed locking function is provided with one speed locking damper and one or more mass blocks, opposite vibrations are generated on the structure, and thus vibrations of the structure caused by external excitation such as wind and earthquake are offset or reduced. Specifically, when the speed is not large, the movement of the mass block and the speed locking damper is adjusted, resonance is generated with the vibration of the building structure, and thus the vibration energy of the building structure is absorbed and consumed. When the building structure is subjected to external excitation, the mass block is affected by the vibration of the building structure, and opposite movement is generated with the vibration direction of the building structure. The opposite movement generates an opposite force, which acts on the building structure, and thus the vibration amplitude of the building structure is reduced. When the speed exceeds a certain range, the speed locking damper is involved, the damper absorbs and dissipates the energy generated by the relative movement between the mass block and the main structure, and further reduces the vibration of the building structure. When the vibration frequency of the building is low, the speed locking damper does not generate a damping function, and only the tuned mass damper plays a role in damping, and the vibration is reduced. When the speed is large, the speed locking damper is involved to further play a role in damping, the stiffness of the building structure is increased, and the vibration frequency is reduced. The utility model is more widely applicable. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0009] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.
[0010] On the contrary, the present application covers any alternative, modification, equivalent method and scheme defined by the claims on the essence and scope of the present application. Further, in order to make the public better understand the present application, some specific details are described in detail in the following detailed description of the present application. The present application can also be completely understood without the description of these details for those skilled in the art.
[0011] Reference Figure 1The application discloses a tuned mass damper with a speed locking function for buildings, comprising an upper frame body 1, a lower frame body 2, a mass block 3 and a speed locking damper 4 arranged between the upper frame body 1 and the lower frame body 2, wherein the upper frame body 1 and the lower frame body 2 are connected through a plurality of connecting assemblies, the connecting assembly comprises a stud 5 and two nuts 6, the two ends of the stud 5 are connected with the two nuts 6 after penetrating through the upper frame body 1 and the lower frame body 2, a sleeve ring 7 is arranged on the mass block 3, the sleeve ring 7 is sleeved on the corresponding stud 5, a spring 8 is arranged between the sleeve ring 7 and the lower frame body 2, the spring 8 is sleeved on the corresponding stud 5, and the two ends of the spring 8 are respectively abutted on the sleeve ring 7 and the lower frame body 2, and the two ends of the speed locking damper 4 are respectively connected with the mass block 3 and the lower frame body 2.
[0012] The connecting assembly has four in total.
[0013] A first base 9 is arranged on the mass block 3, the upper end of the speed locking damper 4 is connected with the first base 9 through a first pin shaft 10, a second base 11 is arranged on the lower frame body 2, and the lower end of the speed locking damper 4 is connected with the second base 11 through a second pin shaft 12.
[0014] The tuned mass damper with the speed locking function for buildings is characterized in that one speed locking damper and one or more mass blocks are added, opposite vibrations are generated on the structure, and thus the vibrations of the structure caused by external excitations such as wind and earthquakes are offset or reduced. Specifically, when the speed is not large, the movement of the mass block and the speed locking damper is adjusted, so that resonance is generated with the vibration of the building structure, thereby absorbing and consuming the vibration energy of the building structure. When the building structure is subjected to external excitation, the mass block is affected by the vibration of the building structure, and generates movement in the opposite direction of the vibration of the building structure. The opposite movement generates an opposite force, which acts on the building structure, thereby reducing the vibration amplitude of the building structure. When the vibration frequency of the building is low, the speed locking damper does not generate a damping function, and only the tuned mass damper plays a role in damping and reducing vibration. When the speed is large, the speed locking damper intervenes to further play a role in damping, increase the stiffness of the building structure, and reduce the vibration frequency. The application has a wider application range.
Claims
1. A tuned mass damper with velocity lock-in function for buildings, characterized by: The application relates to a frame body, which comprises an upper frame body (1), a lower frame body (2), a mass block (3) and a speed locking damper (4) arranged between the upper frame body (1) and the lower frame body (2), the upper frame body (1) and the lower frame body (2) are connected through a plurality of connecting assemblies, the connecting assembly comprises a stud (5) and two nuts (6), the two ends of the stud (5) are respectively threaded through the upper frame body (1) and the lower frame body (2) and connected with the two nuts (6), the mass block (3) is provided with a sleeve ring (7), the sleeve ring (7) is sleeved on the corresponding stud (5), a spring (8) is arranged between the sleeve ring (7) and the lower frame body (2), the spring (8) is sleeved on the corresponding stud (5), the two ends of the spring (8) are respectively abutted on the sleeve ring (7) and the lower frame body (2), and the two ends of the speed locking damper (4) are respectively connected with the mass block (3) and the lower frame body (2).
2. The tuned mass damper with a velocity lock function for buildings according to claim 1, wherein: The connecting assembly has four in total.
3. The tuned mass damper with velocity lock-in function for buildings according to claim 1, wherein: The mass block (3) is provided with a first base (9), the upper end of the speed locking damper (4) is connected with the first base (9) through a first pin shaft (10), the lower frame body (2) is provided with a second base (11), and the lower end of the speed locking damper (4) is connected with the second base (11) through a second pin shaft (12).