A suspended steel wire rope non-linear energy sink

Abstract

The application provides a suspension type steel wire rope nonlinear energy sink, which comprises a mounting plate, a plurality of circular arc steel wire ropes, connecting pieces and a counterweight box; the mounting plate is connected with a main body structure; the counterweight box is connected to the mounting plate through the plurality of circular arc steel wire ropes; and sleeve type connecting pieces are arranged between the circular arc steel wire ropes and the counterweight box. The application has the advantages of simple structure, easy installation and wide frequency vibration reduction characteristics, and can be used for vibration reduction control of power equipment and various industrial structures.

Description

Technical Field

[0001] This invention relates to the field of disaster prevention and mitigation technology for industrial and civil buildings, and in particular to a suspended steel wire rope nonlinear energy trap. Background Technology

[0002] Earthquakes are one of the main threats to the safety of industrial and civil buildings. In recent years, various seismic isolation and damping technologies have been used for their vibration reduction and control. Among them, tuned mass dampers (TMDs) have linear stiffness and are an effective means of reducing the seismic and wind-induced vibration response of buildings, and have been practically applied in many buildings.

[0003] In recent years, nonlinear energy traps (NES) with nonlinear stiffness have begun to gain attention in the fields of seismic and wind resistance. They feature wide response bandwidth, resonance capture, and targeted energy transfer, which can effectively reduce the seismic response of structures. The damping effect of nonlinear energy traps has a significant impact on their seismic performance, but the damping effect of existing nonlinear energy traps is generally low, and adding additional damping devices would make the overall structure more complex, which is not conducive to application. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a suspended steel wire rope nonlinear energy trap that is simple in construction, easy to install, has good energy dissipation capacity, and can effectively reduce the seismic response of the main structure.

[0005] The objective of this invention can be achieved through the following technical solution: it includes an installation plate, several arc-shaped steel wire ropes, connectors, and a counterweight box; the installation plate is connected to the main structure, the counterweight box is connected to the installation plate through several arc-shaped steel wire ropes, and the arc-shaped steel wire ropes are connected to the counterweight box through the sleeve-type connectors.

[0006] Furthermore, the counterweight box is an axisymmetric cuboid.

[0007] Furthermore, the counterweight box is a solid structure and is made of steel.

[0008] Furthermore, the counterweight box has a hollow structure and is filled with counterweight filling material and gap filling material.

[0009] Furthermore, the counterweight filling material is lead block, and the gap filling material is rubber granules.

[0010] Furthermore, the number of the arc-shaped steel wire ropes is an even number greater than or equal to 4.

[0011] Furthermore, the center of the arc-shaped steel wire rope is located in the plane of axial symmetry of the counterweight box, the arc-shaped steel wire rope is symmetrically arranged about the plane of axial symmetry of the counterweight box, and the arc-shaped steel wire rope is located on the four sides of the counterweight box.

[0012] Furthermore, a constraint cylinder is provided between the two ends of the arc-shaped steel wire rope, and the inclination angle of the constraint cylinder is -30° to 30°.

[0013] Furthermore, the angle between the plane of the arc-shaped steel wire rope and the vertical line is -30° to 30°.

[0014] Furthermore, plate-type counterweights are installed on both sides of the counterweight box.

[0015] Compared with the prior art, the advantages of the present invention are: simple structure, easy installation and wide frequency vibration reduction characteristics, which can be used for vibration reduction control of power equipment and various industrial structures. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a front view of a single-layer suspended steel wire rope nonlinear energy trap according to an embodiment of the present invention;

[0018] Figure 2 This is a front view of a double-layered suspended steel wire rope nonlinear energy trap according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1: Mounting plate; 2: Arc-shaped steel wire rope; 3: Sleeve-type connector; 4: Counterweight box; 5: Mounting plate screw hole; 6: Counterweight box cavity; 7: Constraint cylinder; 8: Constraint cylinder inclination angle; 9: Plate-type counterweight block; 10: Fastener; 11: Steel wire rope fixing bolt; 12: Counterweight filling material; 13: Gap filling material; 14: Angle steel connector. Detailed Implementation

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1

[0025] like Figure 1 As shown, this invention provides a suspended steel wire rope nonlinear energy trap (single-layer type), including a mounting plate 1, several arc-shaped steel wire ropes 2, sleeve-type connectors 3, and a counterweight box 4. The device is connected to the main structure via the mounting plate 1, and the counterweight box 4 is connected to the mounting plate 1 via several arc-shaped steel wire ropes 2, with sleeve-type connectors 3 connecting the arc-shaped steel wire ropes 2 to the counterweight box 4. The suspended steel wire rope nonlinear energy trap can undergo three-dimensional, six-degree-of-freedom deformation, providing vibration damping in the corresponding degrees of freedom. The counterweight box 4 can rotate horizontally and vertically in both directions, rotate horizontally in both directions, and deform torsionally along the vertical axis, causing the arc-shaped steel wire ropes 2 to deform in the corresponding directions. The arc-shaped steel wire ropes 2 possess nonlinear stiffness and frictional energy dissipation effects, thereby achieving the effect of a nonlinear energy trap.

[0026] During installation, first, the mounting plate 1 is fixed to the main structure through the mounting plate screw holes 5. The arc-shaped steel wire rope 2 is bent to the target curvature, passed through the constraint cylinder 7, and fixed to the mounting plate 1 by the steel wire rope fixing bolts 11. The sleeve-type connector 3 is fitted onto the arc-shaped steel wire rope 2 and fixed by the fasteners 10. The counterweight box 4 is assembled by welding, and the cavity 6 of the counterweight box is filled with counterweight filling material 12 and gap filling material 13. Preferably, the counterweight filling material 12 is made of lead blocks, and the gap filling material 13 is made of rubber granules. The counterweight box 4 is connected to the sleeve-type connector 3 by welding. The plate counterweight block 9 is installed on the side wall of the counterweight box 4 by bolts.

[0027] Example 2

[0028] A suspended steel wire rope nonlinear energy trap (multi-layer type) includes a mounting plate 1, several arc-shaped steel wire ropes 2, sleeve-type connectors 3, and a counterweight box 4. The device is connected to the main structure via the mounting plate 1, and the counterweight box 4 is connected to the mounting plate 1 via several arc-shaped steel wire ropes 2. Sleeve-type connectors 3 connect the arc-shaped steel wire ropes 2 to the counterweight box 4. The multi-layer suspended steel wire rope nonlinear energy trap can undergo three-dimensional, six-degree-of-freedom deformation, providing vibration damping in the corresponding degrees of freedom. The multi-layered counterweight box 4 can rotate horizontally and vertically in both directions, rotate horizontally in both directions, and deform torsionally along the vertical axis, causing the arc-shaped steel wire ropes 2 to deform in the corresponding directions. The arc-shaped steel wire ropes 2 possess nonlinear stiffness and frictional energy dissipation effects, and the multi-layered steel wire rope nonlinear energy trap has multiple natural frequencies, which can resonate with multiple vibration modes of the main structure.

[0029] During installation, first install the upper layer. Fix the mounting plate 1 to the main structure through the mounting plate screw holes 5. Bend the arc-shaped steel wire rope 2 to the target curvature, pass it through the constraint cylinder 7, and fix it to the mounting plate 1 using the steel wire rope fixing bolts 11. Fit the sleeve-type connector 3 onto the arc-shaped steel wire rope 2 and secure it with fasteners 10. Assemble the solid counterweight box 4 by welding. Connect the counterweight box 4 to the sleeve-type connector 3 by welding. Install the plate-type counterweight block 9 onto the side wall of the counterweight box 4 using bolts.

[0030] Then install the lower layer. Install the lower layer mounting plate 1 onto the upper layer counterweight box 4 using angle iron connectors 14. Then repeat the upper layer installation process.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspended steel wire rope nonlinear energy trap, characterized in that, The system includes a mounting plate (1), several arc-shaped steel wire ropes (2), sleeve-type connectors (3), and a counterweight box (4). The mounting plate (1) is connected to the main structure, and the counterweight box (4) is connected to the mounting plate (1) through several arc-shaped steel wire ropes (2). The arc-shaped steel wire ropes (2) are connected to the counterweight box (4) through the sleeve-type connectors (3). The center of the arc-shaped steel wire ropes (2) is located in the plane of axial symmetry of the counterweight box (4). The arc-shaped steel wire ropes (2) are symmetrically arranged about the plane of axial symmetry of the counterweight box (4), and the arc-shaped steel wire ropes (2) are located on the four sides of the counterweight box (4). The angle between the plane of the arc-shaped steel wire ropes (2) and the vertical line is -30° to 30°.

2. The suspended steel wire rope nonlinear energy trap according to claim 1, characterized in that, The counterweight box (4) is an axisymmetric cuboid.

3. The suspended steel wire rope nonlinear energy trap according to claim 2, characterized in that, The counterweight box (4) is a solid structure and is made of steel.

4. The suspended steel wire rope nonlinear energy trap according to claim 2, characterized in that, The counterweight box (4) is a hollow structure and is filled with counterweight filling material (12) and gap filling material (13).

5. The suspended steel wire rope nonlinear energy trap according to claim 4, characterized in that, The counterweight filling material (12) is made of lead blocks, and the gap filling material (13) is made of rubber particles.

6. The suspended steel wire rope nonlinear energy trap according to claim 1, characterized in that, The number of the arc-shaped steel wire ropes (2) is an even number greater than or equal to 4.

7. The suspended steel wire rope nonlinear energy trap according to claim 1, characterized in that, The arc-shaped steel wire rope (2) is provided with a constraint tube (7) between its two ends, and the inclination angle (8) of the constraint tube is -30° to 30°.

8. The suspended steel wire rope nonlinear energy trap according to claim 1, characterized in that, The counterweight box (4) has plate-type counterweight blocks (9) installed on both sides.

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