A translational passive tuned mass damper

Abstract

The present invention relates to the technical field of building structure vibration control, and in particular to a translational passive tuned mass damper, comprising a mass component, a spherical roller assembly, and a first base arranged in sequence from top to bottom, wherein the first base is fixed on the horizontal plane of the building structure, and the top of the first base and the bottom of the mass component are respectively provided with opposite concave tracks, and the spherical roller assembly is rollingly arranged between the opposite concave tracks; further comprising a second base that is paired along a first direction and a second direction and fixed to the outer edge of the first base; the first base and the second base are connected by a detachable force transmission assembly to attenuate the displacement of the mass component along the first direction and the second direction. By providing a detachable spring assembly, the passive tuned mass damper can replace the spring according to the change of the natural vibration period of the building structure to change the natural vibration period of the damper, thereby realizing a two-way tuning function and a more stable vibration reduction effect.

Description

Technical Field

[0001] The present invention relates to the technical field of building structure vibration control, in particular to a translational passive tuned mass damper. Background Art

[0002] Passive tuned mass dampers (TMDs) are currently the primary method for controlling wind-induced vibrations in high-rise building structures. They require no external energy input and have a relatively simple structure. They have been used in real-world projects and have proven their effectiveness under conditions such as typhoons. Traditional TMDs are often pendulum-type. According to the formula for calculating the period of a pendulum-type TMD, its period is positively correlated with the rope length. However, high-rise buildings often have low first-order frequencies and long periods. Consequently, traditional pendulum-type TMDs require a longer pendulum length, which typically occupies a larger vertical space within the building, affecting building efficiency.

[0003] Therefore, there is an urgent need for a translational passive tuned mass damper that can reduce the vertical space occupied by the building, achieve two-way tuning, and exhibit good vibration reduction performance. Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a translational passive tuned mass damper, which solves the technical problems in the prior art that the pendulum TMD device occupies a large vertical space and has low building space utilization.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] A translational passive tuned mass damper comprises: a mass component, a spherical roller assembly, and a first base, arranged in order from top to bottom. The first base is fixed to a horizontal surface of a building structure. The top of the first base and the bottom of the mass component are respectively provided with opposing concave tracks. The spherical roller assembly is rotatably arranged between the opposing concave tracks.

[0009] It also includes a second base that is paired along the first direction and the second direction and is fixedly arranged on the outer edge of the first base;

[0010] The first base and the second base are connected via a detachable force transmission component to attenuate the displacement of the mass component along the first direction and the second direction.

[0011] The force transmission assembly includes: a viscous damping component, a spring assembly and a sliding sleeve;

[0012] The fixed end of the viscous damping component is connected to the mass component, and the telescopic end of the viscous damping component is connected to the sliding sleeve;

[0013] The sliding sleeve is slidably connected to the slide rail on the top of the second base, and the spring assembly is detachably arranged between the two sliding sleeves.

[0014] The top of the second base is further provided with a fixed baffle, and the spring assembly is located between the fixed baffles;

[0015] A through slot is provided in the middle of the fixed baffle for allowing the sliding sleeve to pass through.

[0016] The spring assembly comprises a spring and a connecting sleeve. The connecting sleeve is slidably connected to the slide rail, and the spring is detachably arranged between the two connecting sleeves.

[0017] A first connecting plate is provided at both ends of the spring; the first connecting plate is fixedly connected to the second connecting plate at the end of the connecting sleeve.

[0018] The telescopic end of the viscous damping component is provided with a port, and connecting grooves are provided on both sides of the port.

[0019] The sliding sleeve comprises: a sleeve and a connecting block, wherein the connecting block is arranged on the top of the sleeve;

[0020] A sliding groove is provided in the middle of the connecting block, and the port is inserted into the sliding groove so that the port is slidably connected to the connecting block.

[0021] The ball roller assembly includes: a rolling ball and a rolling ball constraint plate, wherein the rolling ball constraint plate is placed on the first base and has a plurality of through slots of the same size, and the through slots are distributed in a square array;

[0022] Each through slot is arranged corresponding to the concave track, and the rolling ball is arranged to roll in the through slot.

[0023] The mass component includes: a mass empty box bottom plate, a mass empty box and a mass plate. The mass empty box is fixedly arranged on the mass empty box bottom plate, and a plurality of mass plates are stacked in the mass empty box.

[0024] Each mass plate is provided with holes in an array, and the screw rod passes through the hole of each mass plate in sequence, and the multiple mass plates are fixed in the mass empty box through the nut.

[0025] (3) Beneficial effects

[0026] The beneficial effects of the present invention are as follows: the present invention provides a translational passive tuned mass damper, which can drive the mass component to reciprocate by arranging a spherical roller assembly instead of the rope of the pendulum TMD. While meeting the vibration reduction performance, the entire device occupies a smaller vertical space of the building, thereby improving the utilization rate of the building space.

[0027] By setting up a ball roller assembly, the mass component can have a restoring force under the action of the rolling ball and the concave track, that is, the position is restored.

[0028] By arranging a detachable spring assembly on the second base, the passive tuned mass damper can replace the spring according to the change of the natural vibration period of the building structure to change the natural vibration period of the damper, realize the function of two-way tuning, and make the vibration reduction effect more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of a translational passive tuned mass damper according to the present invention;

[0030] Figure 2 Schematic diagram of the structure of the translational passive tuned mass damper of the present invention;

[0031] Figure 3 A perspective view of a mass component of the present invention;

[0032] Figure 4 A perspective view of the bottom plate of a mass empty box according to the present invention;

[0033] Figure 5 A perspective view of a mass plate according to the present invention;

[0034] Figure 6 is a perspective view of the ball roller assembly of the present invention;

[0035] Figure 7 is a perspective view of the first base of the present invention;

[0036] Figure 8 is a perspective view of the second base of the present invention;

[0037] Figure 9 is a perspective view of a viscous damping component of the present invention;

[0038] Figure 10 is a perspective view of a spring assembly of the present invention;

[0039] Figure 11 A perspective view of a sliding sleeve of the present invention;

[0040] Figure 12 An enlarged view of the connection structure of the second base, the viscous damping component, and the sliding sleeve of the present invention;

[0041] Figure 13 This is a comparison diagram of the controlled and uncontrolled acceleration time history curves of the top floor of a 70-story shear wall structure under the action of a 50-year return period fluctuating wind load of the present invention.

[0042] [Description of Reference Numerals]

[0043] 1: mass component; 11: mass hollow box bottom plate; 111: slot; 12: mass hollow box; 13: mass plate; 131: hole; 14: nut; 15: screw; 16: stiffening rib;

[0044] 2: ball roller assembly; 21: rolling ball; 22: rolling ball restraint plate;

[0045] 3: first base; 31: concave track; 32: baffle;

[0046] 4: Second base; 41: Slide rail; 42: Slide rail support; 43: Concrete base; 44: Fixed baffle;

[0047] 5: viscous damping component; 51: cylinder; 52: piston; 53: port;

[0048] 6: spring; 61: first connecting plate;

[0049] 7: sliding sleeve; 71: connecting block; 72: sleeve;

[0050] 8: connecting sleeve; 81: second connecting plate. DETAILED DESCRIPTION

[0051] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is referenced.

[0052] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0053] See attached Figure 1 , Attachment Figure 12As shown, the present invention provides a translational passive tuned mass damper, comprising a mass component 1, a spherical roller assembly 2, and a first base 3, arranged in order from top to bottom. The first base 3 is fixed to the horizontal surface of the building structure. The top of the first base 3 and the bottom of the mass component 1 are respectively provided with opposing concave tracks 31, and the spherical roller assembly 2 is rolled between the opposing concave tracks 31. The device also includes second bases 4, which are paired and fixed to the outer edges of the first base 3 along first and second directions, respectively. The first and second bases 3 and 4 are connected by a detachable force transmission assembly to attenuate displacement of the mass component 1 along the first and second directions.

[0054] The force transmission assembly includes a viscous damping component 5, a spring assembly, and a sliding sleeve 7. The fixed end of the viscous damping component 5 is connected to the mass component 1, and the telescopic end of the viscous damping component 5 is connected to the sliding sleeve 7. The sliding sleeve 7 is slidably connected to the slide rail 41 on the top of the second base 4, and the spring assembly is removably arranged between the two sliding sleeves 7. The top of the second base 4 is also provided with fixed baffles 44, and the spring assembly is located between the fixed baffles 44. The fixed baffles 44 have a through slot in the middle to allow the sliding sleeve 7 to pass through.

[0055] When the building structure vibrates, the spherical roller assembly 2 rolls on the first base 3, driving the mass component 1 in a certain direction. During the movement of the mass component 1, the relative displacement of the cylinder 51 and piston 52 of the viscous damping component 5 in the direction of motion generates a viscous damping force. In the direction orthogonal to the motion, the viscous damping component 5 drives the sliding sleeve 7 to compress the spring assembly, generating a spring force. As a result, during the movement of the mass component 1, the spring force and viscous damping force are transmitted to the second base 4. The spherical roller assembly 2 also transmits the restoring force of the gravity component of the mass component 1 during its movement to the first base 3. The first and second bases 3 and 4 then transmit the corresponding forces to the building structure, thus controlling the building structure's vibration.

[0056] See attached Figure 7 As shown, the first base 3 is fixed on the horizontal surface of the building structure. The top of the first base 3 is arrayed with several concave tracks 31, each concave track 31 corresponds to a rolling ball 21. The number of concave tracks 31 can be selected according to the size of the mass component 1, such as 3×3, 4×4, or 5×5, but the distribution pattern must be a rectangular array. Figure 7 The first base 3 shown in the figure adopts 4×4 concave tracks 31. A baffle 32 is provided around each concave track 31 to prevent the ball 21 from escaping from the first base 3.

[0057] See attached Figure 6As shown, the ball roller assembly 2 includes a ball 21 and a ball restraining plate 22. The ball restraining plate 22 is placed on the first base 3. The ball restraining plate 22 has a plurality of equally sized through slots arranged in a square array, each corresponding to a concave track 31. The ball 21 is positioned within a through slot, with its bottom resting on the concave track 31. The number of through slots corresponds to the number of concave tracks 31. By constraining the ball 21 with the ball restraining plate 22, each ball 21 can be ensured to move in coordination, thereby driving the motion of the mass component 1.

[0058] See attached Figure 3-5 As shown, the mass component 1 comprises a hollow mass box base 11, a hollow mass box 12, and mass plates 13. The hollow mass box 12 is fixedly mounted on the hollow mass box base 11, and multiple mass plates 13 are stacked within the hollow mass box 12. Each mass plate 13 is provided with a plurality of holes 131 arranged in an array, with the holes 131 of each mass plate 13 corresponding to each other. Screws 15 pass through the holes 131 of each mass plate 13 in sequence and are secured within the hollow mass box 12 by nuts 14. By providing multiple stackable mass plates 13, the mass of the mass component 1 can be adjusted.

[0059] The junction between the outer bottom of the mass hollow box 12 and the mass hollow box bottom plate 11 is provided with a plurality of reinforcing ribs 16. Each side of the mass hollow box bottom plate 11 has two notches 111 for connecting with the cylinder 51 of the viscous damping component 5.

[0060] The bottom of the mass box bottom plate 11 is arrayed with several concave tracks 31. These tracks 31 are arranged opposite the concave tracks 31 on the top of the first base 3. The balls 21 roll between the opposing concave tracks 31, with each concave track 31 corresponding to a ball 21. The concave tracks 31 and the balls 21 cooperate to provide the mass component 1 with a restoring force, allowing it to return to its original position.

[0061] See attached Figure 8 As shown, the second base 4 includes a concrete base 43 and a slide rail support 42 fixedly mounted on the top of the concrete base 43. A slide rail 41 is provided between the slide rail supports 42. The slide rail 41 passes through the sliding sleeve 7 and is slidably connected to the sliding sleeve 7. The slide rail 41 is used to provide a track for the movement of the sliding sleeve 7 and the spring assembly. The sliding sleeve 7 and the spring assembly can slide in both directions along the slide rail 41.

[0062] The fixed baffle 44 is arranged on the top of the concrete base 43. The fixed baffle 44 is triangular. A through groove is provided in the middle of the fixed baffle 44 for the sliding sleeve 7 to pass through, so that the fixed baffle 44 can limit the spring 6 without blocking the sliding of the sliding sleeve 7.

[0063] The spring assembly is located between two fixed baffles 44, see attached Figure 10 As shown, the spring assembly includes: a spring 6 and a connecting sleeve 8. The connecting sleeve 8 is sleeved on the slide rail 41 and is slidably connected to the slide rail 41. The spring 6 is detachably arranged between the two connecting sleeves 8.

[0064] Spring 6 is provided with a first connecting plate 61 at each end, and a second connecting plate 81 is provided at the end of the connecting sleeve 8 connected to the spring 6. The first and second connecting plates 61 are fixedly connected by bolts, thereby connecting the spring 6 to the slide rail 41. When spring 6 needs to be replaced, the bolts are removed to replace the spring 6. By providing a detachable connection between the spring 6 and the slide rail 41 through the connecting sleeve 8, the damper's natural vibration period can be adjusted by replacing the spring 6 when the building structure's natural vibration period changes, achieving bidirectional tuning.

[0065] A through-hole is defined in the middle of the second connecting plate 81, through which the slide rail 41 can pass. The second connecting plate 81 also serves to confine the spring 6 between the two fixed baffles 44, preventing the second connecting plate 81 from passing through the through-slot in the middle of the fixed baffles 44. The cooperation between the second connecting plate 81 and the fixed baffles 44 ensures that the horizontal distance between the second connecting plate 81 and the centerline of the second base 4 does not exceed the initial equilibrium position. Therefore, the sliding sleeve 7 can generate a spring force by compressing the spring assembly.

[0066] See attached Figure 9 As shown, the viscous damping component 5 includes: a cylinder 51 and a piston 52 that is retractably arranged in the cylinder 51. The fixed end of the cylinder 51 is fixedly connected to the notch 111 of the mass component 1. The retractable end of the piston 52 is provided with a port 53. The side of the port 53 is I-shaped. Connecting grooves are provided on both sides of the port 53. The connecting grooves are used to be slidably connected to the connecting block 71 at the top of the sleeve 72.

[0067] See attached Figure 10 As shown, sliding sleeve 7 comprises a sleeve 72 and a connecting block 71 disposed on top of sleeve 72. A sliding groove is provided in the middle of connecting block 71, into which port 53 is inserted. Connecting blocks 71 are inserted into the connecting grooves on either side of port 53, thereby forming a sliding connection between port 53 and connecting block 71. Mass component 1 drives port 53 of viscous damping component 5 up and down within the sliding groove, allowing sliding sleeve 7 to offset vertical displacement of mass component 1 and synchronize horizontal displacement with mass component 1. Consequently, during movement, mass component 1 drives relative motion between cylinder 51 and piston 52, generating a viscous damping force and driving sliding sleeve 7 to generate a spring force by compressing the spring assembly.

[0068] When the sliding sleeve 7 moves to one side, the second connecting plate 81 on the same side of the spring 6 and the moving direction is blocked by the fixed baffle 44 and cannot move. The sliding sleeve 7 on the other side squeezes the other second connecting plate 81 opposite thereto, and then squeezes the spring 6, thereby generating a spring restoring force.

[0069] See attached Figure 13 As shown, taking the working condition of a 70-story shear wall structure under a 50-year return period pulsating wind load as an example, numerical simulation is used to simulate the acceleration response of the top floor of the structure, and the corresponding time history curve is obtained. It is found that under the control of the translational passive tuned mass damper of the present invention, the acceleration response of the top floor of the structure has an obvious peak clipping effect, indicating that the translational passive tuned mass damper of the present invention has good vibration reduction performance. The mass component 1 of the present invention is in a translational form, so it has the same vibration reduction effect as the pendulum TMD. On this basis, the vertical space occupied by the translational passive tuned mass damper of the present invention is less than 3m, the vertical space occupied by the traditional pendulum TMD is greater than 7m, and the translational passive tuned mass damper of the present invention occupies even less vertical space in the building.

[0070] The present invention provides a translational passive tuned mass damper (TMD). A spherical roller assembly (2) replaces the ropes of a pendulum-type tuned mass damper (TMD) to drive the reciprocating motion of a mass component (1). The hollow mass box base (11) of the mass component (1) transmits a viscous damping force through a retractable viscous damping element (5). This compresses a spring (6) on a second base (4) to transmit a spring force. This force is then transmitted to the building structure via the first and second bases (3, 4), achieving vibration control of the building structure.

[0071] By providing the ball roller assembly 2 , the mass component 1 can have a restoring force under the action of the rolling ball 21 and the concave track 31 , that is, the position can be restored.

[0072] The ball restraining plate 22 is provided to restrain the plurality of balls 21 , thereby ensuring that the balls 21 move in coordination and jointly drive the movement of the mass component 1 .

[0073] By arranging a detachable spring assembly on the second base 4, the passive tuned mass damper can achieve a bidirectional tuning function by replacing the spring 6 and changing the stiffness of the spring 6 according to the use of the building structure.

[0074] The viscous damping component 5 is provided to make the vibration reduction effect of the passive tuned mass damper more stable.

[0075] The mass adjustment of the mass component 1 is achieved by providing a mass empty box 12 on which a plurality of mass plates 13 can be stacked.

[0076] The passive tuned mass damper of the present invention not only has good vibration reduction performance, but also makes the vertical space of the building occupied by the entire device smaller, thereby improving the utilization rate of the building space.

[0077] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0078] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0079] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0080] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0081] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A translational passive tuned mass damper, characterized in that: include: A mass component (1), a spherical roller assembly (2), and a first base (3) are sequentially arranged from top to bottom, wherein the first base (3) is fixed on a horizontal surface of a building structure, and opposite concave tracks (31) are respectively provided at the top of the first base (3) and the bottom of the mass component (1), and the spherical roller assembly (2) is rollingly arranged between the opposite concave tracks (31); It also includes a second base (4) formed in a pair along the first direction and the second direction respectively and fixedly arranged on the outer edge of the first base (3); The first base (3) and the second base (4) are connected via a force transmission component to attenuate the displacement of the mass component (1) along the first direction and the second direction; The force transmission assembly comprises: a viscous damping component (5), a spring assembly and a sliding sleeve (7); The fixed end of the viscous damping component (5) is connected to the mass component (1), and the telescopic end of the viscous damping component (5) is connected to the sliding sleeve (7); The sliding sleeve (7) is slidably connected to the slide rail (41) on the top of the second base (4), and the spring assembly is detachably arranged between the two sliding sleeves (7); The telescopic end of the viscous damping component (5) is provided with a port (53), and connecting grooves are provided on both sides of the port (53); The sliding sleeve (7) comprises: a sleeve (72) and a connecting block (71), wherein the connecting block (71) is arranged on the top of the sleeve (72); A sliding groove is provided in the middle of the connecting block (71), and the port (53) is inserted into the sliding groove so that the port (53) is slidably connected to the connecting block (71); The mass component (1) comprises: a mass empty box bottom plate (11), a mass empty box (12) and a mass plate (13); the mass empty box (12) is fixedly arranged on the mass empty box bottom plate (11); and a plurality of mass plates (13) are stacked in the mass empty box (12).

2. The translational passive tuned mass damper according to claim 1, characterized in that: The top of the second base (4) is further provided with a fixed baffle (44), and the spring assembly is located between the fixed baffles (44); A through slot is provided in the middle of the fixed baffle (44) to allow the sliding sleeve (7) to pass through.

3. The translational passive tuned mass damper according to claim 2, characterized in that: The spring assembly comprises a spring (6) and a connecting sleeve (8), wherein the connecting sleeve (8) is slidably connected to the slide rail (41), and the spring (6) is detachably arranged between the two connecting sleeves (8).

4. The translational passive tuned mass damper according to claim 3, characterized in that: A first connecting plate (61) is provided at both ends of the spring (6); the first connecting plate (61) is fixedly connected to a second connecting plate (81) at the end of the connecting sleeve (8).

5. The translational passive tuned mass damper according to claim 1, wherein: The ball-type roller assembly (2) comprises: a rolling ball (21) and a rolling ball constraint plate (22), wherein the rolling ball constraint plate (22) is placed on the first base (3), and the rolling ball constraint plate (22) has a plurality of through slots of the same size, and the through slots are distributed in a square array; Each through slot is provided corresponding to a corresponding concave track (31), and the rolling ball (21) is rollingly provided in the through slot.

6. The translational passive tuned mass damper according to claim 1, characterized in that: Each mass plate (13) is provided with holes (131) in an array, and the screw rod (15) passes through the hole (131) of each mass plate (13) in sequence, and fixes the plurality of mass plates (13) in the mass empty box (12) through the nut (14).

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