Fluid inerter damping system for bidirectional vibration control of a cable

Abstract

The present application relates to the technical fields of structural engineering, in particular to a fluid inertia capacity damping system for bidirectional vibration control of a cable, comprising a stand, a crossbeam arranged above the stand, and fluid inertia capacity assemblies symmetrically arranged at the ends of the crossbeam; each fluid inertia capacity assembly comprises a cylinder body filled with viscous fluid, a piston rod, and a pipeline for transmitting the viscous fluid; the piston rod extends into the cylinder body, and the end of the cylinder body away from the piston rod is movably connected to the crossbeam away from the stand; the two ends of the pipeline are connected to the side surface of the cylinder body, and the middle part of the pipeline is movably connected to the crossbeam; when the cable body vibrates, the cable body drives the piston rod to move relative to the cylinder body, further, the piston rod extrudes the viscous fluid, so that the viscous fluid flows through the gap between the piston rod and the cylinder body and flows in the pipeline, thereby achieving the damping and inertia capacity effects on the in-plane and out-of-plane of the cable body, and obtaining the vibration suppression effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural engineering, in particular to a fluid inertial damper system for bidirectional vibration control of a cable. BACKGROUND

[0002] The cable structure made of high specific strength steel wire has light weight and strong tensile capacity, and is therefore widely used in civil structures, especially in high-rise and long-span structures such as meteorological towers, cable-stayed bridges, suspension bridges, etc. However, due to its light weight and large span, it is prone to various types of vibration under the action of wind, wind and rain, wind and sand, etc. The vibration is mainly the vibration perpendicular to the cable axis plane and the lateral vibration. Due to the vibration problem of the cable, almost all cables need to take aerodynamic measures and install damping devices for vibration reduction. For long cables, multiple damping devices need to be installed at the same time to meet the vibration reduction requirements.

[0003] With the increase of the length of the cable, the damper needs to be installed with a support, and the installation height of the damper is limited considering the convenience of installation and maintenance. The traditional viscous damper, viscous shear damper, high-damping rubber damper, etc. cannot meet the vibration reduction requirements. The existing theory proposes to use dampers with negative stiffness and inertial mass effect to improve the energy dissipation effect of the damper. The existing theory and some model tests show the improvement effect of these two measures. At the same time, some types of inertial containers have been developed, such as gear and rack-based, screw-based, lever-based and fluid-based inertial containers. Among them, the fluid inertial container utilizes the inertial force of the fluid flowing in the pipeline, while producing a damping effect.

[0004] However, the current fluid inertial container is mainly for single-direction vibration and cannot meet the bidirectional vibration reduction requirements of the cable. At the same time, the pipeline needs to be arranged outside the inertial container cylinder, causing the inertial container to have a large volume and be unsightly. In addition, the inertial coefficient of the existing inertial container is difficult to adjust. Therefore, there is an urgent need for an inertial damper system that can meet the bidirectional vibration reduction requirements, is aesthetically pleasing and easy to adjust. SUMMARY

[0005] To solve the above problems, the purpose of the present application is to provide a fluid inertial damper system for bidirectional vibration control of a cable, to provide a new solution for bidirectional vibration control of a cable, and to effectively improve the vibration control effect of a cable-stayed cable.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] The present application provides a fluid inertial damper system for bidirectional vibration control of a cable, which is connected to the main body of the cable during use, and comprises a vertical column, a horizontal beam arranged above the vertical column, and fluid inertial assemblies symmetrically arranged at the ends of the horizontal beam.

[0008] The fluid inertial component comprises a cylinder body filled with viscous fluid, a piston rod and a pipeline for transmitting viscous fluid; the piston rod extends into the cylinder body, and the end thereof away from the cylinder body is movably connected with the cable body; the end of the cylinder body away from the piston rod is movably connected with the cross beam away from one side of the column; the two ends of the pipeline are connected with the side of the cylinder body, and the middle part is movably connected with the cross beam.

[0009] When the cable body vibrates, the cable body drives the piston rod to move relative to the cylinder body, further, the piston rod extrudes the viscous fluid, so that the viscous fluid flows through the gap between the piston rod and the cylinder body and in the pipeline, thereby realizing the damping and inertial effect of the cable body in the plane and out of the plane, and obtaining the vibration suppression effect.

[0010] In an embodiment of the present application, the fluid inertial damping component comprises a first fluid inertial damping component and a second fluid inertial damping component.

[0011] The first fluid inertial damping component comprises a first cylinder body, a first piston rod and a first pipeline, and the second fluid inertial damping component comprises a second cylinder body, a second piston rod and a second pipeline.

[0012] The first piston rod extends into the first cylinder body, and the end thereof away from the first cylinder body is movably connected with the cable body; the end of the first cylinder body away from the first piston rod is movably connected with the cross beam away from one side of the column; the two ends of the first pipeline are connected with the first cylinder body, or one end is connected with the first cylinder body and the other end is connected with the second cylinder body, and the middle part is spirally wound on the outer surface or inner cavity of the cross beam.

[0013] The second piston rod extends into the second cylinder body, and the end thereof away from the second cylinder body is movably connected with the cable body; the end of the second cylinder body away from the second piston rod is movably connected with the cross beam away from one side of the column; the two ends of the second pipeline are connected with the second cylinder body, or one end is connected with the first cylinder body and the other end is connected with the second cylinder body, and the middle part is spirally wound on the outer surface or inner cavity of the cross beam.

[0014] In an embodiment of the present application, the first cylinder body is a hollow cylinder body, one end of which is sealed, and the other end is provided with a first hole; a first partition plate is arranged in the first cylinder body to divide the first cylinder body into two cavities; the first partition plate is provided with a second hole; the cavity on the side close to the first hole is filled with viscous fluid, and the cavity on the side away from the first hole is hollow.

[0015] The first piston rod comprises a first horizontal plate and a first vertical rod, the outer diameter of the first horizontal plate is 1mm smaller than the inner diameter of the first cylinder body, and the outer diameter of the first vertical rod is the same as the inner diameter of the first hole and the second hole; the first horizontal plate is arranged on the side of the first partition plate close to the first hole, one end of the first vertical rod is connected with the cable body, and the end away from the cable body extends out of the second hole.

[0016] In an embodiment of the present application, the second cylinder body is a hollow cylinder body, one end of which is sealed, the other end of which is provided with a third hole, and the inside of which is provided with a second partition plate for dividing the second cylinder body into two cavities, the second partition plate is provided with a fourth hole, the cavity on the side of the second partition plate close to the third hole is filled with viscous fluid, and the cavity on the side of the second partition plate away from the third hole is hollow.

[0017] The second piston rod comprises a second horizontal plate and a second vertical rod, the outer diameter of the second horizontal plate is 1mm smaller than the inner diameter of the second cylinder body, and the outer diameter of the second vertical rod is the same as the inner diameter of the third hole and the fourth hole; the second horizontal plate is arranged on the side of the second partition plate close to the third hole, one end of the second vertical rod is connected with the cable body, and the end away from the cable body extends out of the fourth hole.

[0018] In an embodiment of the present application, the side of the cavity of the first cylinder body containing viscous fluid is provided with a first through hole and a second through hole, the first through hole is arranged on the side close to the cable body, and the second through hole is arranged on the side close to the first partition plate.

[0019] The first through hole is connected with the end of the first pipeline or the second pipeline, and the second through hole is connected with the end of the first pipeline or the second pipeline.

[0020] In an embodiment of the present application, the first through hole and the second through hole are arranged on the side of the first cylinder body close to the second cylinder body.

[0021] In an embodiment of the present application, the side of the cavity of the second cylinder body containing viscous fluid is provided with a third through hole and a fourth through hole, the third through hole is arranged on the side close to the cable body, and the fourth through hole is arranged on the side close to the second partition plate.

[0022] The third through hole is connected with the end of the first pipeline or the second pipeline, and the fourth through hole is connected with the end of the first pipeline or the second pipeline.

[0023] In an embodiment of the present application, the third through hole and the fourth through hole are arranged on the side of the second cylinder body close to the first cylinder body.

[0024] In an embodiment of the present application, when the first pipeline and the second pipeline are spirally wound on the outer surface of the cross beam,

[0025] The first pipe is spirally wound at the position of the cross beam close to one end of the column near the first cylinder or close to one end of the column near the second cylinder.

[0026] At this time, the second pipe is spirally wound at the position of the cross beam close to one end of the column near the second cylinder or close to one end of the column near the first cylinder.

[0027] In an embodiment of the present application, when the first pipe is spirally wound in the inner cavity of the cross beam, the side of the cross beam close to the cable body is provided with a hole allowing the first pipe and the second pipe to extend in and out;

[0028] The first pipe is spirally wound at the position of the cross beam close to one end of the column near the first cylinder or close to one end of the column near the second cylinder.

[0029] At this time, the second pipe is spirally wound at the position of the cross beam close to one end of the column near the second cylinder or close to one end of the column near the first cylinder.

[0030] In an embodiment of the present application, the outer surface of the cable body is provided with a cable clamp, the cable clamp comprising two half cable clamps fixed by a bolt assembly; the end of the first vertical rod away from the first cylinder is connected to the half cable clamp through a spherical hinge, and the end of the second vertical rod away from the second cylinder is connected to the half cable clamp through a spherical hinge.

[0031] In an embodiment of the present application, the end of the first cylinder away from the first vertical rod is connected to the cross beam through a spherical hinge, and the end of the second cylinder away from the second vertical rod is connected to the cross beam through a spherical hinge.

[0032] In an embodiment of the present application, the central axis of the cylinder is perpendicular to the central axis of the cable body.

[0033] In an embodiment of the present application, the angle between the central axis of the cylinder and the vertical plane where the cable body is located is 10° to 80°.

[0034] In an embodiment of the present application, the column is located at the middle position of the cross beam along the length direction thereof.

[0035] Compared with the prior art, the present application has the following beneficial effects:

[0036] (1) The fluid inertial capacity damping system for two-way vibration control of a cable proposed in the present application provides inertial force and damping force when the cable vibrates in two directions, and compared with the prior art, the damping effect is improved through inertial force;

[0037] (2) The fluid inertial damping system for bidirectional vibration control of a cable rod provided by the application integrates pipeline layout and support beams of a damping device, which can not only improve pipeline length and inertial damping coefficient, but also improve the aesthetics of the system and enhance its practicability;

[0038] (3) The fluid inertial damping system for bidirectional vibration control of a cable rod provided by the application can conveniently adjust the inertial damping coefficient of the cable rod in two directions by adjusting the connection sequence of the pipeline and the through hole of the cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 A front view of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 1;

[0040] Figure 2 A side view of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 1;

[0041] Figure 3 A front view of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 2;

[0042] Figure 4 An analysis model schematic diagram of the inertial damping effect of the fluid inertial damping system for bidirectional vibration control of a cable rod of Examples 1 and 2 on bidirectional vibration control of a cable rod;

[0043] Figure 5 A front view of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 3;

[0044] Figure 6 An analysis model schematic diagram of the inertial damping effect of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 3 on bidirectional vibration control of a cable rod;

[0045] Figure 7 A front view of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 4;

[0046] Figure 8 An analysis model schematic diagram of the inertial damping effect of the fluid inertial damping system for bidirectional vibration control of a cable rod of Example 4 on bidirectional vibration control of a cable rod;

[0047] Figure 9 A front view of the fluid inertial damping system for bidirectional vibration control of a cable rod of Comparative Example 1;

[0048] Figure 10 An analysis model schematic diagram of the inertial damping effect of the fluid inertial damping system for bidirectional vibration control of a cable rod of Comparative Example 1 on bidirectional vibration control of a cable rod;

[0049] Figure 11 Figure 1 is a front view of a fluid inertia damper system for bidirectional vibration control of a cable according to an embodiment of the present application;

[0050] Figure 12 Figure 2 is a front view of a fluid inertia damper system for bidirectional vibration control of a cable according to another embodiment of the present application;

[0051] Figure 13 Figure 3 is a front view of a fluid inertia damper system for bidirectional vibration control of a cable according to another embodiment of the present application;

[0052] Figure 14 Figure 4 is a front view of a fluid inertia damper system for bidirectional vibration control of a cable according to another embodiment of the present application;

[0053] Reference signs in the drawings:

[0054] 1, column; 2, beam; 3, first cylinder; 4, second cylinder; 5, first partition; 6, second partition; 7, first hole; 8, second hole; 9, third hole; 10, fourth hole; 11, first through hole; 12, second through hole; 13, third through hole; 14, fourth through hole; 15, first cross plate; 16, first vertical rod; 17, second cross plate; 18, second vertical rod; 19, first pipe; 20, second pipe; 21, cable body; 22, half cable clamp; 23, bolt assembly; 24, first pipe through hole; 25, second pipe through hole; 26, third pipe through hole; 27, fourth pipe through hole. DETAILED DESCRIPTION

[0055] The present application provides a fluid inertia damper system for bidirectional vibration control of a cable, which is connected to the cable body in use, and comprises a column, a beam arranged above the column, and fluid inertia assemblies symmetrically arranged at the ends of the beam;

[0056] The fluid inertia assembly comprises a cylinder filled with viscous fluid, a piston rod, and a pipe for transmitting the viscous fluid; the piston rod extends into the cylinder, and the end thereof away from the cylinder is movably connected to the cable body; the end of the cylinder away from the piston rod is movably connected to the beam at the side thereof away from the column; the two ends of the pipe are connected to the side of the cylinder, and the middle part thereof is movably connected to the beam;

[0057] When the cable body vibrates, the cable body drives the piston rod to move relative to the cylinder, and further, the piston rod extrudes the viscous fluid, so that the viscous fluid flows through the gap between the piston rod and the cylinder and in the pipe, thereby achieving the damping and inertia effects on the in-plane and out-of-plane of the cable body, and obtaining the vibration suppression effect.

[0058] In an embodiment of the present application, the fluid inertia damper assembly comprises a first fluid inertia damper assembly and a second fluid inertia damper assembly;

[0059] The first fluid inerter damping assembly comprises a first cylinder, a first piston rod and a first pipeline, and the second fluid inerter damping assembly comprises a second cylinder, a second piston rod and a second pipeline;

[0060] The first piston rod extends into the first cylinder, and the end of the first piston rod away from the first cylinder is movably connected with the cable body; the end of the first cylinder away from the first piston rod is movably connected with the cross beam away from one side of the column; and the two ends of the first pipeline are both connected with the first cylinder, or one end is connected with the first cylinder and the other end is connected with the second cylinder, and the middle part is spirally wound on the outer surface or inner cavity of the cross beam.

[0061] The second piston rod extends into the second cylinder, and the end of the second piston rod away from the second cylinder is movably connected with the cable body; the end of the second cylinder away from the second piston rod is movably connected with the cross beam away from one side of the column; and the two ends of the second pipeline are both connected with the second cylinder, or one end is connected with the first cylinder and the other end is connected with the second cylinder, and the middle part is spirally wound on the outer surface or inner cavity of the cross beam.

[0062] In an embodiment of the present application, the first cylinder is a hollow cylinder with one end sealed and the other end provided with a first hole, and a first partition is arranged inside the first cylinder to divide the first cylinder into two cavities, and a second hole is arranged on the first partition; the cavity on the side of the first partition close to the first hole is filled with viscous fluid, and the cavity on the side of the first partition away from the first hole is hollow.

[0063] The first piston rod comprises a first horizontal plate and a first vertical rod, the outer diameter of the first horizontal plate is 1mm smaller than the inner diameter of the first cylinder, and the outer diameter of the first vertical rod is the same as the inner diameter of the first hole and the second hole; the first horizontal plate is arranged on the side of the first partition close to the first hole, one end of the first vertical rod is connected with the cable body, and the end of the first vertical rod away from the cable body extends out of the second hole.

[0064] In an embodiment of the present application, the second cylinder is a hollow cylinder with one end sealed and the other end provided with a third hole, and a second partition is arranged inside the second cylinder to divide the second cylinder into two cavities, and a fourth hole is arranged on the second partition; the cavity on the side of the second partition close to the third hole is filled with viscous fluid, and the cavity on the side of the second partition away from the third hole is hollow.

[0065] The second piston rod comprises a second horizontal plate and a second vertical rod, the outer diameter of the second horizontal plate is 1mm smaller than the inner diameter of the second cylinder, and the outer diameter of the second vertical rod is the same as the inner diameter of the third hole and the fourth hole; the second horizontal plate is arranged on the side of the second partition close to the third hole, and one end of the second vertical rod is connected with the cable body, and the end of the second vertical rod away from the cable body extends out of the fourth hole.

[0066] In one embodiment of the present application, the side of the first cylinder accommodating the cavity of viscous fluid is provided with a first through hole and a second through hole, the first through hole is arranged on the side close to the main body of the cable, and the second through hole is arranged on the side close to the first partition plate.

[0067] The first through hole is connected with the end of the first pipeline or the second pipeline, and the second through hole is connected with the end of the first pipeline or the second pipeline.

[0068] In one embodiment of the present application, the first through hole and the second through hole are arranged on the side of the first cylinder close to the second cylinder.

[0069] In one embodiment of the present application, the side of the second cylinder accommodating the cavity of viscous fluid is provided with a third through hole and a fourth through hole, the third through hole is arranged on the side close to the main body of the cable, and the fourth through hole is arranged on the side close to the second partition plate.

[0070] The third through hole is connected with the end of the first pipeline or the second pipeline, and the fourth through hole is connected with the end of the first pipeline or the second pipeline.

[0071] In one embodiment of the present application, the third through hole and the fourth through hole are arranged on the side of the second cylinder close to the first cylinder.

[0072] In one embodiment of the present application, when the first pipeline and the second pipeline are spirally wound on the outer surface of the cross beam,

[0073] The position of the first pipeline spirally wound on the cross beam is the end of the column close to the first cylinder, or the end of the column close to the second cylinder.

[0074] At this time, the position of the second pipeline spirally wound on the cross beam is the end of the column close to the second cylinder, or the end of the column close to the first cylinder.

[0075] In one embodiment of the present application, when the first pipeline is spirally wound in the inner cavity of the cross beam, the side of the cross beam close to the main body of the cable is provided with a hole allowing the first pipeline and the second pipeline to extend in and out;

[0076] The position of the first pipeline spirally wound on the cross beam is the end of the column close to the first cylinder, or the end of the column close to the second cylinder.

[0077] At this time, the position of the second pipeline spirally wound on the cross beam is the end of the column close to the second cylinder, or the end of the column close to the first cylinder.

[0078] In one embodiment of the present application, the cable body outer surface is provided with a cable clamp, the cable clamp comprises two half cable clamps, the two half cable clamps are fixed by a bolt assembly; the first vertical rod end away from the first cylinder is connected with the half cable clamp through a ball hinge, and the second vertical rod end away from the second cylinder is connected with the half cable clamp through a ball hinge.

[0079] In one embodiment of the present application, the first cylinder end away from the first vertical rod is connected with the cross beam through a ball hinge, and the second cylinder end away from the second vertical rod is connected with the cross beam through a ball hinge.

[0080] In one embodiment of the present application, the cylinder central axis is perpendicular to the cable body central axis.

[0081] In one embodiment of the present application, the angle between the cylinder central axis and the vertical plane where the cable body is located is 10° to 80°.

[0082] In one embodiment of the present application, the vertical column is located at the middle position of the cross beam along the length direction thereof.

[0083] The present application will be described in detail below with reference to the drawings and specific embodiments.

[0084] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0085] In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0086] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0087] Embodiment 1

[0088] The present embodiment provides a fluid inertia damper system for bidirectional vibration control of a cable, which is connected to a cable body 21 when in use, as shown in Figure 1 and Figure 2 includes a stand 1, a cross beam 2 arranged above the stand 1, and a fluid inertia assembly symmetrically arranged at the end of the cross beam 2.

[0089] The cable body 21 is provided with a cable clamp on the outer surface, and the cable clamp includes two half cable clamps 22, which are fixed by a bolt assembly 23.

[0090] The fluid inertia assembly includes a cylinder body filled with viscous fluid, a piston rod, and a pipeline for transmitting viscous fluid; further, the fluid inertia damper assembly includes a first fluid inertia damper assembly and a second fluid inertia damper assembly; the first fluid inertia damper assembly includes a first cylinder body 3, a first piston rod, and a first pipeline 19, and the second fluid inertia damper assembly includes a second cylinder body 4, a second piston rod, and a second pipeline 20.

[0091] The first cylinder 3 is a hollow cylinder with one end sealed and the other end provided with a first hole 7, and a first partition 5 is arranged inside the first cylinder 3 to divide the first cylinder 3 into two cavities, and the first partition 5 is provided with a second hole 8, and the cavity on the side of the first partition 5 close to the first hole 7 is filled with viscous fluid, and the cavity on the side of the first partition 5 away from the first hole 7 is hollow; the first piston rod includes a first horizontal plate 15 and a first vertical rod 16, and the outer diameter of the first horizontal plate 15 is 1mm smaller than the inner diameter of the first cylinder 3, and the outer diameter of the first vertical rod 16 is the same as the inner diameter of the first hole 7 and the second hole 8; the first horizontal plate 15 is arranged on the side of the first partition 5 close to the first hole 7, and one end of the first vertical rod 16 is connected to the half cable clamp 22 through a ball hinge, and the end of the cable body 21 away from the half cable clamp 22 extends out of the second hole 8, and the end of the first cylinder 3 away from the cable body 21 is movably connected to the cross beam 2 through a ball hinge; the side of the cavity of the first cylinder 3 containing viscous fluid (the side of the first cylinder 3 close to the second cylinder 4) is provided with a first through hole 11 and a second through hole 12, the first through hole 11 is arranged on the side close to the cable body 21, and the second through hole 12 is arranged on the side close to the first partition 5; the first through hole 11 is connected to one end of the first pipeline 19, and the second through hole 12 is connected to the other end of the first pipeline 19, and the first pipeline 19 is spirally wound on the outer surface of the cross beam 2 (the side of the column 1 close to the first cylinder 3);

[0092] The second cylinder 4 is a hollow cylinder with one end sealed and the other end provided with a third hole 9, and a second partition 6 is arranged inside the second cylinder 4 to divide the second cylinder 4 into two cavities, and the second partition 6 is provided with a fourth hole 10, and the cavity on the side of the second partition 6 close to the third hole 9 is filled with viscous fluid, and the cavity on the side of the second partition 6 away from the third hole 9 is hollow; the second piston rod includes a second horizontal plate 17 and a second vertical rod 18, and the outer diameter of the second horizontal plate 17 is 1mm smaller than the inner diameter of the second cylinder 4, and the outer diameter of the second vertical rod 18 is the same as the inner diameter of the third hole 9 and the fourth hole 10; the second horizontal plate 17 is arranged on the side of the second partition 6 close to the third hole 9, and one end of the second vertical rod 18 is connected to the half cable clamp 22 through a ball hinge, and the end of the cable body 21 away from the half cable clamp 22 extends out of the fourth hole 10, and the end of the second cylinder 4 away from the cable body 21 is movably connected to the cross beam 2 through a ball hinge; the side of the cavity of the second cylinder 4 containing viscous fluid (the side of the second cylinder 4 close to the first cylinder 3) is provided with a third through hole 13 and a fourth through hole 14, the third through hole 13 is arranged on the side close to the cable body 21, and the fourth through hole 14 is arranged on the side close to the second partition 6; the third through hole 13 is connected to one end of the second pipeline 20, and the fourth through hole 14 is connected to the other end of the second pipeline 20, and the second pipeline 20 is spirally wound on the outer surface of the cross beam 2 (the side of the column 1 close to the second cylinder 4);

[0093] The middle axis of the first cylinder body 3 and the second cylinder body 4 is perpendicular to the middle axis of the cable body 21, and the angle between the middle axis of the first cylinder body 3 and the second cylinder body 4 and the vertical plane in which the cable body 21 is located is 10-80°; the column 1 is located at the middle position of the beam 2 along the length direction thereof.

[0094] The analysis model of the fluid inertia damper system of the embodiment for the inertia damper effect of the two-direction vibration of the cable is shown in FIG. 2, wherein the inertia damper system of the embodiment provides inertia force and damping force for the two-direction vibration of the cable body 21, and the inertia coefficient and the damping coefficient along the y direction (the vertical plane perpendicular to the cable direction) and the x direction (the horizontal plane perpendicular to the cable direction) are (b1, c1) and (b2, c2) respectively. Figure 4

[0095] Embodiment 2

[0096] The embodiment provides a fluid inertia damper system for two-direction vibration control of a cable, as shown in FIG. 3, which is the same as the embodiment 1 except for the following technical features: Figures 3-4

[0097] The first through hole 11 is connected with one end of the first pipeline 19, the second through hole 12 is connected with the other end of the first pipeline 19, and the first pipeline 19 is spirally wound on the outer surface of the beam 2 (the side of the column 1 close to the second cylinder body 4); the third through hole 13 is connected with one end of the second pipeline 20, the fourth through hole 14 is connected with the other end of the second pipeline 20, and the second pipeline 20 is spirally wound on the outer surface of the beam 2 (the side of the column 1 close to the second cylinder body 4).

[0098] The analysis model of the fluid inertia damper system of the embodiment for the inertia damper effect of the two-direction vibration of the cable is shown in FIG. 2, wherein the inertia damper system of the embodiment provides inertia force and damping force for the two-direction vibration of the cable body 21, and the inertia coefficient and the damping coefficient along the y direction (the vertical plane perpendicular to the cable direction) and the x direction (the horizontal plane perpendicular to the cable direction) are (b1, c1) and (b2, c2) respectively. Figure 4

[0099] Embodiment 3

[0100] The embodiment provides a fluid inertia damper system for two-direction vibration control of a cable, as shown in FIG. 3, which is the same as the embodiment 1 except for the following technical features: Figures 5-6

[0101] ​​​​The first through hole 11 is connected with one end of the first pipeline 19, the fourth through hole 14 is connected with the other end of the first pipeline 19, the second through hole 12 is connected with one end of the second pipeline 20, and the third through hole 13 is connected with the other end of the second pipeline 20; the first pipeline 19 is spirally wound on the outer surface of the cross beam 2 (the side of the stand column 1 close to the second cylinder 4), and the second pipeline 20 is spirally wound on the outer surface of the cross beam 2 (the side of the stand column 1 close to the first cylinder 3).

[0102] The analysis model of the fluid inertia damping system of the embodiment for the inertia damping effect of the two-direction vibration of the cable is shown in Figure 6 At this time, the fluid inertia damping system of the embodiment simultaneously produces the inertia damping effect on the vibration of the cable main body 21 along the y direction and only has the damping effect on the vibration along the x direction.

[0103] Example 4

[0104] The embodiment provides a fluid inertia damping system for two-direction vibration control of a cable, as shown in Figures 7-8 Compared with example 1, the fluid inertia damping system of the embodiment is different from example 1 in the following technical features, and the other technical features are the same as those of example 1.

[0105] The first through hole 11 is connected with one end of the first pipeline 19, the third through hole 13 is connected with the other end of the first pipeline 19, the second through hole 12 is connected with one end of the second pipeline 20, and the fourth through hole 14 is connected with the other end of the second pipeline 20; the first pipeline 19 is spirally wound on the outer surface of the cross beam 2 (the side of the stand column 1 close to the first cylinder 3), and the second pipeline 20 is spirally wound on the outer surface of the cross beam 2 (the side of the stand column 1 close to the second cylinder 4).

[0106] The analysis model of the fluid inertia damping system of the embodiment for the inertia damping effect of the two-direction vibration of the cable is shown in Figure 8 At this time, the fluid inertia damping system of the embodiment simultaneously produces the inertia damping effect on the vibration of the cable main body 21 along the y direction and only has the damping effect on the vibration along the x direction.

[0107] Comparative example 1

[0108] The comparative example provides a fluid inertia damping system for two-direction vibration control of a cable, as shown in Figures 9-10 Compared with example 1, the fluid inertia damping system of the embodiment is different from example 1 in the following technical features, and the other technical features are the same as those of example 1.

[0109] The first pipeline 19 and the second pipeline 20 are not arranged, and the first through hole 11, the second through hole 12, the third through hole 13 and the fourth through hole 14 are arranged in a sealed manner.

[0110] The fluid inerter damping system of the present comparative example has a model for analyzing the inerter damping effect on the two-direction vibration of the cable, as shown in Figure 10 At this time, the fluid inerter damping system of the present comparative example has only damping effect on the two-direction vibration of the cable body 21.

[0111] Example 5

[0112] The present example provides a fluid inerter damping system for controlling the two-direction vibration of a cable, as shown in Figure 11 Compared with Example 1, the present example is different from Example 1 in the following technical features, and the other features are the same as those of Example 1:

[0113] The first pipe 19 and the second pipe 20 are arranged in the inner cavity of the cross beam 2 spirally wound.

[0114] The side of the cross beam 2 away from the column 1 is sequentially provided with the first pipe through hole 24, the second pipe through hole 25, the third pipe through hole 26 and the fourth pipe through hole 27 from the direction of the first cylinder 3 to the second cylinder 4.

[0115] One end of the first pipe 19 is connected with the first through hole 11, then extends into the second pipe through hole 25, spirally winds in the inner cavity of the cross beam 2 (the side of the column 1 close to the first cylinder 3), and extends out of the first pipe through hole 24, and the end is connected with the second through hole 12.

[0116] One end of the second pipe 20 is connected with the third through hole 13, then extends into the third pipe through hole 26, spirally winds in the inner cavity of the cross beam 2 (the side of the column 1 close to the second cylinder 4), and extends out of the fourth pipe through hole 27, and the end is connected with the fourth through hole 14.

[0117] Example 6

[0118] The present example provides a fluid inerter damping system for controlling the two-direction vibration of a cable, as shown in Figure 12 Compared with Example 5, the present example is different from Example 5 in the following technical features, and the other features are the same as those of Example 5:

[0119] One end of the first pipe 19 is connected with the first through hole 11, then extends into the fourth pipe through hole 27, spirally winds in the inner cavity of the cross beam 2 (the side of the column 1 close to the second cylinder 4), and extends out of the third pipe through hole 26, and the end is connected with the second through hole 12.

[0120] One end of the second pipe 20 is connected with the third through hole 13, then extends into the first pipe through hole 24, spirally winds in the inner cavity of the cross beam 2 (the side of the column 1 close to the first cylinder 3), and extends out of the second pipe through hole 25, and the end is connected with the fourth through hole 14.

[0121] Example 7

[0122] The embodiment provides a fluid inertial damper system for cable bidirectional vibration control, as shown in Figure 13 Compared with example 5, the embodiment is different from example 5 in the following technical features, and the other technical features are the same as those of example 5.

[0123] One end of the first pipe 19 is connected with the first through hole 11, then extends into the second pipe through hole 25, spirally winds in the inner cavity of the cross beam 2 (the side of the stand column 1 close to the first cylinder body 3), and extends out of the first pipe through hole 24, and the end is connected with the third through hole 13.

[0124] One end of the second pipe 20 is connected with the third through hole 13, then extends into the third pipe through hole 26, spirally winds in the inner cavity of the cross beam 2 (the side of the stand column 1 close to the second cylinder body 4), and extends out of the fourth pipe through hole 27, and the end is connected with the fourth through hole 14.

[0125] Example 8

[0126] The embodiment provides a fluid inertial damper system for cable bidirectional vibration control, as shown in Figure 14 Compared with example 5, the embodiment is different from example 5 in the following technical features, and the other technical features are the same as those of example 5.

[0127] One end of the first pipe 19 is connected with the first through hole 11, then extends into the second pipe through hole 25, spirally winds in the inner cavity of the cross beam 2 (the side of the stand column 1 close to the first cylinder body 3), and extends out of the first pipe through hole 24, and the end is connected with the third through hole 13.

[0128] One end of the second pipe 20 is connected with the third through hole 13, then extends into the third pipe through hole 26, spirally winds in the inner cavity of the cross beam 2 (the side of the stand column 1 close to the second cylinder body 4), and extends out of the fourth pipe through hole 27, and the end is connected with the fourth through hole 14.

[0129] In examples 1-8, when the cable main body 21 vibrates, the cable main body 21 drives the piston rod (the first piston rod and the second piston rod) to move relative to the cylinder body (the first cylinder body 3 and the second cylinder body 4), further, the piston rod (the first piston rod and the second piston rod) extrudes the viscous fluid, so that the viscous fluid flows through the gap between the piston rod (the first piston rod and the second piston rod) and the cylinder body (the first cylinder body 3 and the second cylinder body 4) and in the pipe (the first pipe 19 and the second pipe 20), the in-plane and out-of-plane damping and inertial effects of the cable main body 21 are realized, and the vibration suppression effect is obtained. Compared with examples 1-4, the pipes (the first pipe 19 and the second pipe 20) are arranged in the inner cavity of the cross beam 2 in examples 5-8, and the appearance can be improved.

[0130] The foregoing description of the embodiments has been presented for the purpose of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. Modifications and variations are possible in light of the above teachings or can be acquired from practice of the application. As well, the description is presented in the context of the preferred embodiments as a number of alternatives. It is not intended to limit the application to the precise form described.

Claims

1. A fluid inerter damping system for bidirectional vibration control of a cable, in use connected to a cable body (21), characterized in that, The fluid inertia damper assembly comprises a cylinder body filled with viscous fluid, a piston rod and a pipeline for transmitting viscous fluid; the piston rod extends into the cylinder body and is movably connected to the cable body (21) at the end away from the cylinder body; the end of the cylinder body away from the piston rod is movably connected to the beam (2) at the side away from the column (1); the two ends of the pipeline are connected to the side of the cylinder body and the middle part is movably connected to the beam (2). When the cable body (21) vibrates, the cable body (21) drives the piston rod to move relative to the cylinder body, and further, the piston rod extrudes the viscous fluid, so that the viscous fluid flows through the gap between the piston rod and the cylinder body and in the pipeline, realizing the damping and inertia effect of the cable body (21) in the plane and out of the plane, and obtaining the vibration suppression effect. The fluid inertia damper assembly comprises a first fluid inertia damper assembly and a second fluid inertia damper assembly. The first fluid inertia damper assembly comprises a first cylinder body (3), a first piston rod and a first pipeline (19), and the second fluid inertia damper assembly comprises a second cylinder body (4), a second piston rod and a second pipeline (20). The first piston rod extends into the first cylinder body (3) and is movably connected to the cable body (21) at the end away from the first cylinder body (3); the end of the first cylinder body (3) away from the first piston rod is movably connected to the beam (2) at the side away from the column (1); the two ends of the first pipeline (19) are connected to the first cylinder body (3), or one end is connected to the first cylinder body (3) and the other end is connected to the second cylinder body (4), and the middle part is spirally wound on the outer surface or inner cavity of the beam (2). The second piston rod extends into the second cylinder body (4) and is movably connected to the cable body (21) at the end away from the second cylinder body (4); the end of the second cylinder body (4) away from the second piston rod is movably connected to the beam (2) at the side away from the column (1); the two ends of the second pipeline (20) are connected to the second cylinder body (4), or one end is connected to the first cylinder body (3) and the other end is connected to the second cylinder body (4), and the middle part is spirally wound on the outer surface or inner cavity of the beam (2). The first cylinder body (3) is a hollow cylinder body, one end is sealed, the other end is provided with a first hole (7), and a first partition plate (5) is arranged inside to divide the first cylinder body (3) into two cavities; the first partition plate (5) is provided with a second hole (8); the cavity on the side close to the first hole (7) is filled with viscous fluid, and the cavity on the side away from the first hole (7) is hollow.

2. The fluidic inerter damping system for bidirectional vibration control of a cable as claimed in claim 1, wherein, ​ The first piston rod comprises a first horizontal plate (15) and a first vertical rod (16), the outer diameter of the first horizontal plate (15) is smaller than the inner diameter of the first cylinder (3), and the outer diameter of the first vertical rod (16) is the same as the inner diameter of the first hole (7) and the second hole (8); the first horizontal plate (15) is arranged on the side of the first partition plate (5) close to the first hole (7), one end of the first vertical rod (16) is connected with the cable body (21), and the end away from the cable body (21) extends out of the second hole (8).

3. The fluidic inerter damping system for bidirectional vibration control of a cable as claimed in claim 2, wherein, The second cylinder (4) is a hollow cylinder, one end of which is sealed, and the other end is provided with a third hole (9), and the inside is provided with a second partition plate (6) for dividing the second cylinder (4) into two cavities, the second partition plate (6) is provided with a fourth hole (10), and the cavity on the side of the second partition plate (6) close to the third hole (9) is filled with viscous fluid, and the cavity on the side away from the third hole (9) is hollow; The second piston rod comprises a second horizontal plate (17) and a second vertical rod (18), the outer diameter of the second horizontal plate (17) is smaller than the inner diameter of the second cylinder (4), and the outer diameter of the second vertical rod (18) is the same as the inner diameter of the third hole (9) and the fourth hole (10); the second horizontal plate (17) is arranged on the side of the second partition plate (6) close to the third hole (9), one end of the second vertical rod (18) is connected with the cable body (21), and the end away from the cable body (21) extends out of the fourth hole (10).

4. The fluidic inertial damper system for bidirectional vibration control of a cable according to claim 3, wherein The side of the cavity containing viscous fluid of the first cylinder (3) is provided with a first through hole (11) and a second through hole (12), the first through hole (11) is arranged on the side close to the cable body (21), and the second through hole (12) is arranged on the side close to the first partition plate (5); The first through hole (11) is connected with the end of the first pipeline (19) or the second pipeline (20), and the second through hole (12) is connected with the end of the first pipeline (19) or the second pipeline (20).

5. The fluidic inerter damping system for bidirectional vibration control of a cable as claimed in claim 4, wherein, The first through hole (11) and the second through hole (12) are arranged on the side of the first cylinder (3) close to the second cylinder (4).

6. The fluidic inerter damping system for bidirectional vibration control of a cable as claimed in claim 5, wherein, The side of the cavity containing viscous fluid of the second cylinder (4) is provided with a third through hole (13) and a fourth through hole (14), the third through hole (13) is arranged on the side close to the cable body (21), and the fourth through hole (14) is arranged on the side close to the second partition plate (6); The third through hole (13) is connected with the end of the first pipeline (19) or the second pipeline (20), and the fourth through hole (14) is connected with the end of the first pipeline (19) or the second pipeline (20).

7. The fluidic inertial damper system for bidirectional vibration control of a cable according to claim 6, wherein, The third through hole (13) and the fourth through hole (14) are arranged on the side of the second cylinder (4) close to the first cylinder (3).

8. The fluidic inertial damper system for bidirectional vibration control of a cable according to claim 7, wherein, When the first pipeline (19) and the second pipeline (20) are spirally wound on the outer surface of the cross beam (2), The position of the first pipeline (19) spirally wound on the cross beam (2) is one end of the stand (1) close to the first cylinder (3), or one end of the stand (1) close to the second cylinder (4); At this time, the position of the second pipeline (20) spirally wound with the cross beam (2) is the end of the stand (1) close to the second cylinder (4), or the end of the stand (1) close to the first cylinder (3).

9. The fluidic inertial damper system for bidirectional vibration control of a cable according to claim 8, wherein, When the first pipeline (19) is spirally wound in the inner cavity of the cross beam (2), the side of the cross beam (2) close to the cable body (21) is provided with a hole allowing the first pipeline (19) and the second pipeline (20) to extend in and out; The position of the first pipeline (19) spirally wound with the cross beam (2) is the end of the stand (1) close to the first cylinder (3), or the end of the stand (1) close to the second cylinder (4). At this time, the position of the second pipeline (20) spirally wound with the cross beam (2) is the end of the stand (1) close to the second cylinder (4), or the end of the stand (1) close to the first cylinder (3).

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