A bidirectional self-resetting TMD energy dissipation device

Abstract

This invention relates to the field of damping and vibration reduction technology, and discloses a bidirectional self-resetting TMD energy dissipation device, including a connecting plate, a load mechanism, and a damping energy dissipation component disposed between the load mechanism and the connecting plate. The damping energy dissipation component includes a hinge ball, with deflection rods rotatably connected to both sides of the hinge ball. The other ends of the two sets of deflection rods are rotatably connected to an L-shaped support plate fixed to the bottom of the connecting plate. This invention overcomes the problems of limited damping and vibration reduction energy dissipation direction and low damping efficiency in traditional dampers. By employing a multi-set distributed design, it can decompose the damping deflection, improve damping capacity and recovery capacity, enhance building stability and safety, facilitate installation and maintenance, achieve damping and energy dissipation in multiple directions, and facilitate counterweight addition and removal operations, making it suitable for different building vibration reduction needs.

Description

Technical Field

[0001] This invention relates to the field of damping and vibration reduction technology, and in particular to a bidirectional self-resetting TMD energy dissipation device. Background Technology

[0002] With the diversification of engineering structural functions, and the accompanying development of structural calculation methods and lightweight, high-strength materials, the vibration problems of tall, long-span structures have increasingly attracted the attention of the engineering and academic communities, thus driving the rapid development of vibration control technology. Tuned mass dampers (TMDs) are one of the main forms of vibration control. In recent years, the theoretical research on tuned vibration reduction technology has become more mature, and its applications have become more widespread. Because tuned mass dampers (TMDs) can effectively attenuate the dynamic response of structures, are simple in construction, easy to install, convenient to maintain, and economical, they have been widely used as anti-wind vibration devices for high-rise buildings, tall structures, and long-span bridges. In related technologies, a tuned mass damper is essentially a dynamic vibration absorber. Through the principle of resonance, it amplifies and transmits the vibration of the main structure to the TMD mass block, and dissipates this vibration energy through its own damping device, achieving rapid attenuation of the main structure's vibration. A tuned mass damper typically consists of a mass block, a spring, and a damping device. Currently, TMDs have been successfully applied to control the vibration of engineering structures, such as wind-induced vibration, earthquakes, and other forms of vibration. However, traditional TMDs have problems with their size and weight, which leads to high costs and low space utilization. At the same time, TMDs have low energy dissipation efficiency and the damping device is difficult to repair after damage. Therefore, a bidirectional self-resetting TMD energy dissipation device is proposed. Summary of the Invention

[0003] To address the technical problems existing in the prior art, the present invention provides a bidirectional self-resetting TMD energy dissipation device.

[0004] The present invention is achieved by the following technical solution: a bidirectional self-resetting TMD energy dissipation device, comprising a connecting plate, a load mechanism, and a damping energy dissipation component disposed between the load mechanism and the connecting plate;

[0005] The damping energy dissipation component includes a hinge ball, with deflection rods rotatably connected to both sides of the hinge ball. The other ends of the two sets of deflection rods are rotatably connected to L-shaped support plates fixed to the bottom of the connecting plate. Two sets of deflection rods rotatably connected to the hinge ball are arranged between the two sets of support plates, and the two sets of deflection rods and the two sets of deflection rods are arranged in a cross shape. The ends of the two sets of deflection rods away from the hinge ball are rotatably connected to L-shaped support plates. A bearing plate fixed to the load mechanism is fixed to the bottom between the two sets of support plates. A viscous damper is installed on the side of the two sets of support plates that are far from each other. The top of the viscous damper is hinged to the connecting plate, and the bottom of the viscous damper is hinged to the load mechanism.

[0006] As a further improvement to the above scheme, the load mechanism includes a tie rod fixed to the bottom of the bearing plate, a placement plate fixed to the bottom of the tie rod, a limiting rod fixed to the top of the placement plate, a load plate for loading placed on the top of the placement plate, a crossbar located directly below the second deflection rod and a longitudinal rod located directly below the first deflection rod fixed to the outer ring of the tie rod, and a rotating tube hinged to the end of the longitudinal rod and the crossbar respectively.

[0007] As a further improvement to the above solution, both sides of the rotating tube are rotatably connected with limiting rings that are fixedly sleeved with the corresponding longitudinal or transverse rod.

[0008] As a further improvement to the above solution, the top outer ring of the tie rod is fixedly connected to a reinforcing rib one that is fixedly connected to the bottom of the bearing plate, and both the support plate one and the support plate two are provided with reinforcing rib two.

[0009] As a further improvement to the above solution, the connecting plate is provided with mounting holes for installation and connection.

[0010] As a further improvement to the above scheme, the viscous damper deflects along the axial direction of the longitudinal or transverse bar.

[0011] As a further improvement to the above solution, the outer ring of the limiting rod is threaded with a fastening nut for clamping the load plate.

[0012] As a further improvement to the above scheme, both ends of the viscous damper are equipped with rotating shafts, and the rotating shafts are fitted with U-shaped connecting seats that are fixed to the rotating tube or connecting plate.

[0013] As a further improvement to the above solution, the axis of the pull rod is located on the extension line of one diameter of the hinge ball.

[0014] As a further improvement to the above scheme, the crossbar is arranged parallel to the second deflection rod, and the longitudinal bar is arranged parallel to the first deflection rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention can overcome the problems of limited energy dissipation direction and low energy dissipation efficiency of traditional dampers. By adopting a multi-group distributed design, it can decompose the damping deflection, improve the damping capacity and recovery capacity, improve the stability and safety of buildings, facilitate installation and maintenance, realize damping energy dissipation in multiple directions, facilitate the addition and removal of counterweights, and is suitable for different building damping needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a bidirectional self-resetting TMD energy dissipation device provided by the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the damping energy dissipation component provided by the present invention;

[0019] Figure 3 This is a schematic diagram of the distribution of deflection rod one and deflection rod two provided by the present invention;

[0020] Figure 4 A schematic diagram of the load mechanism provided by the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of a bidirectional self-resetting TMD energy dissipation device in Embodiment 2 of the present invention.

[0022] Explanation of key symbols:

[0023] 1. Loading mechanism; 2. Connecting plate; 11. Tie rod; 12. Placement plate; 13. Limiting rod; 14. Loading plate; 15. Horizontal bar; 16. Vertical bar; 17. Rotating tube; 31. Hinge ball; 32. Deflection rod one; 33. Deflection rod two; 34. Viscous damper one; 35. Support plate three; 36. Support plate two; 361. Viscous damper two; 37. Bearing plate; 38. Support plate one; 39. Tie rod two. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example 1

[0026] Please combine Figures 1-4 The bidirectional self-resetting TMD energy dissipation device of this embodiment includes a connecting plate 2, a load mechanism 1, and a damping energy dissipation component disposed between the load mechanism 1 and the connecting plate 2.

[0027] The damping energy dissipation component includes a hinge ball 31, with deflection rods 32 rotatably connected to both sides of the hinge ball 31. The other ends of the two sets of deflection rods 32 are rotatably connected to L-shaped support plates 38 fixed to the bottom of the connecting plate 2. Two sets of deflection rods 33 rotatably connected to the hinge ball 31 are arranged between the two sets of support plates 38, and the two sets of deflection rods 33 and the two sets of deflection rods 32 are arranged in a cross shape. The ends of the two sets of deflection rods 33 furthest from the hinge ball 31 are rotatably connected to L-shaped support plates 36. A bearing plate 37 fixed to the load mechanism 1 is fixed to the bottom between the two sets of support plates 36. A viscous damper 34 is installed on the sides of the two sets of support plates 38 and the two sets of support plates 36 furthest from each other. The top of the viscous damper 34 is hinged to the connecting plate 2, and the bottom of the viscous damper 34 is hinged to the load mechanism 1. The connecting plate 2 is provided with mounting holes for installation connections.

[0028] The load mechanism 1 includes a tie rod 11 fixedly connected to the bottom of the bearing plate 37. A placement plate 12 is fixedly connected to the bottom of the tie rod 11, and a limiting rod 13 is fixedly connected to the top of the placement plate 12. A load plate 14 for loading is placed on the top of the placement plate 12. A horizontal bar 15 located directly below the deflection rod 33 and a vertical bar 16 located directly below the deflection rod 32 are fixedly connected to the outer ring of the tie rod 11. The ends of the vertical bar 16 and the horizontal bar 15 are rotatably sleeved with a rotating tube 17 hinged to the adjacent viscous damper 34. Both sides of the rotating tube 17 are rotatably connected with limiting rings that are fixedly sleeved to the vertical bar 16 or the horizontal bar 15. The top outer ring of the tie rod 11 is fixedly... A reinforcing rib is fixed to the bottom of the bearing plate 37, and reinforcing ribs are provided on both the support plate 38 and the support plate 36. The viscous damper 34 deflects along the axis of the longitudinal bar 16 or the transverse bar 15. The outer ring of the limiting bar 13 is threaded with a fastening nut for pressing the load plate 14. Both ends of the viscous damper 34 are equipped with a rotating shaft, and the rotating shaft is fitted with a U-shaped connecting seat fixed to the rotating tube 17 or the connecting plate 2. The axis of the tie rod 11 is located on the extension line of one diameter of the hinge ball 31. The transverse bar 15 is arranged parallel to the deflection rod 33, and the longitudinal bar 16 is arranged parallel to the deflection rod 32.

[0029] The connecting plate 2 is installed in the working position using bolts. The load is installed on the load mechanism 1 according to the vibration reduction requirements. When vibration reduction is performed, the longitudinal bar 16 and the transverse bar 15 move with the swing of the tie rod 11. The swing direction of the tie rod 11 is decomposed by the longitudinal bar 16 and the transverse bar 15. At the same time, four sets of viscous dampers 34 are used to achieve all-round damping and vibration reduction operation on the force during the swing of the tie rod 11. The distributed design facilitates the position recovery of the viscous damper 34, changing the shortcomings of the traditional single viscous damper, which has uncertain deflection direction and is difficult to recover.

[0030] The mass ratio of the TMD energy dissipation device should be controlled between 0.5% and 1%. The larger the mass ratio within this range, the more significant its vibration reduction effect. In addition, the natural frequency of the TMD energy dissipation device should be close to the frequency of the main structure.

[0031] like Figure 1 As shown, its quality control can be achieved by adding or removing the lower load disk; in terms of frequency control, its pendulum length L is equal in multiple directions, and only the pendulum length L needs to be adjusted to make it... Where T is the natural vibration period of the device, L is the pendulum length of the device, and g is the gravitational acceleration. The calculation period is close to the natural vibration period of the building, so that good vibration reduction function can be achieved.

[0032] This type of TMD energy dissipation device is widely applicable to high-rise buildings with regular floor plans. When the natural frequencies of the building are not much different in the east-west and north-south directions, this device has the advantages of easy design, simple installation, and good vibration reduction effect.

[0033] Example 2

[0034] Please combine Figure 5 The bidirectional self-resetting TMD energy dissipation device of this embodiment includes a connecting plate 2, a load mechanism 1, and a damping energy dissipation component disposed between the load mechanism 1 and the connecting plate 2.

[0035] The load mechanism 1 includes a pull rod 11, a placement plate 12 is fixedly connected to the bottom of the pull rod 11, a limiting rod 13 is fixedly connected to the top of the placement plate 12, a load plate 14 for loading is placed on the top of the placement plate 12, two sets of horizontal bars 15 and two sets of vertical bars 16 are fixedly connected to the outer ring of the pull rod 11, the two sets of horizontal bars 15 and the two sets of vertical bars 16 are arranged in a cross shape, and the ends of the vertical bars 16 and the horizontal bars 15 are rotatably sleeved with rotating tubes 17;

[0036] The damping energy dissipation component includes a hinge ball 31, with deflection rods 33 rotatably connected to both sides of the hinge ball 31. Each set of deflection rods 33 has a support plate 35 fixed to the bottom of the connecting plate 2 at its end. Two sets of deflection rods 32 rotatably connected to the hinge ball 31 are positioned between the two sets of support plates 35. The two sets of deflection rods 33 and 32 are arranged in a cross shape. A viscous damper 361 is positioned between the deflection rods 32 and the connecting plate 2. The top of the viscous damper 361 is hinged to the bottom of the connecting plate 2. 61 has a rotating tube 1 hinged to the bottom of the deflection rod 32; a tie rod 39 is provided between the deflection rod 32 and the adjacent longitudinal rod 16, one end of the tie rod 39 is hinged to the rotating tube 17 on the longitudinal rod 16, and the other end of the tie rod 39 is hinged to the rotating tube 2 rotatably connected to the deflection rod 32; a viscous damper 34 is provided between the deflection rod 33 and the crossbar 15, the top of the viscous damper 34 is hinged to the rotating tube 3 rotatably connected to the deflection rod 33, and the bottom of the viscous damper 34 is hinged to the rotating tube 17 on the crossbar 15.

[0037] The mass ratio of TMD should be controlled between 0.5% and 1%. The larger the mass ratio within this range, the more significant its vibration reduction effect. In addition, the natural frequency of TMD needs to be close to the frequency of the main structure.

[0038] like Figure 5 As shown, its quality control can be achieved by adding or removing the load plate below; in terms of frequency control, the calculation formula is as above, and the pendulum length in the x and y directions varies slightly. Assuming the pendulum length in one direction is L (L is the length of the tie rod 11), the pendulum length in the other direction is (L+d) (d is the distance between the cross rod 15 and the deflection rod 33). By increasing or decreasing the lengths of L and d, the device can have different periods in different directions. This type of bidirectional self-resetting TMD device is suitable for high-rise buildings where the natural frequencies in different directions are significantly different.

[0039] This invention can overcome the problems of limited energy dissipation direction and low energy dissipation efficiency of traditional dampers. By adopting a multi-group distributed design, it can decompose the damping deflection, improve the damping capacity and recovery capacity, improve the stability and safety of buildings, facilitate installation and maintenance, realize damping energy dissipation in multiple directions, facilitate the addition and removal of counterweights, and is suitable for different building damping needs.

[0040] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A bidirectional self-resetting TMD energy dissipation device, characterized in that, Includes a connecting plate, a load mechanism, and a damping energy dissipation component disposed between the load mechanism and the connecting plate; The damping energy dissipation component includes a hinge ball, with deflection rods rotatably connected to both sides of the hinge ball. The other ends of the two sets of deflection rods are rotatably connected to L-shaped support plates fixed to the bottom of the connecting plate. Two sets of deflection rods rotatably connected to the hinge ball are arranged between the two sets of support plates, and the two sets of deflection rods rotatably distributed with the two sets of deflection rods in a cross shape. The ends of the two sets of deflection rods away from the hinge ball are rotatably connected to L-shaped support plates. A bearing plate fixed to the load mechanism is fixed to the bottom between the two sets of support plates. A viscous damper is installed on the side of the two sets of support plates that are far from each other. The top of the viscous damper is hinged to the connecting plate, and the bottom of the viscous damper is hinged to the load mechanism. The load mechanism includes a tie rod fixed to the bottom of the bearing plate, a placement plate fixed to the bottom of the tie rod, a limiting rod fixed to the top of the placement plate, a load plate for loading placed on the top of the placement plate, a crossbar located directly below the second deflection rod and a longitudinal rod located directly below the first deflection rod fixed to the outer ring of the tie rod, and a rotating tube hinged to the end of the longitudinal rod and the crossbar respectively.

2. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, Both sides of the rotating tube are rotatably connected to limiting rings that are fixedly sleeved with the corresponding longitudinal or transverse rod.

3. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, The top outer ring of the tie rod is fixedly connected to a reinforcing rib one that is fixedly connected to the bottom of the bearing plate, and both the support plate one and the support plate two are provided with reinforcing rib two.

4. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, The connecting plate is provided with mounting holes for installation and connection.

5. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, The viscous damper deflects along the axial direction of the longitudinal or transverse bar it is located in.

6. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, The outer ring of the limiting rod is threaded with a fastening nut for clamping the load plate.

7. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, Both ends of the viscous damper are equipped with rotating shafts, and the rotating shafts are fitted with U-shaped connecting seats that are fixed to the rotating tube or connecting plate.

8. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, The axis of the pull rod lies on the extension of one diameter of the hinge ball.

9. The bidirectional self-resetting TMD energy dissipation device as described in claim 1, characterized in that, The horizontal bar is arranged parallel to the second deflection bar, and the vertical bar is arranged parallel to the first deflection bar.

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