Swing type passive tuned mass damper and using method thereof

Abstract

The invention relates to the technical field of building structure vibration control, in particular to a swing type passive tuned mass damper and a using method thereof, and the swing type passive tuned mass damper comprises a mass component, a first base, a connecting assembly, a second base and a force transmission assembly; the mass component is arranged at the top of the first base in a swinging manner; the mass component comprises a cylindrical body and a spherical crown-shaped base, and the spherical crown-shaped base is arranged at the bottom of the cylindrical body; the second base is arranged on the periphery of the first base, and the second base is of a rectangular frame structure; the force transmission assembly is connected with the second base and the connecting assembly so as to attenuate displacement of the connecting assembly along the second base. The swing type mass component is placed on the first base with the groove, an existing swing type passive tuned mass damping assembly for hoisting the mass component is replaced, the vertical building space is saved, and the space utilization rate is increased. And meanwhile, the bidirectional vibration reduction effect can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building structure vibration control, and in particular to a swing type passive tuned mass damper and a use method thereof. Background Art

[0002] At present, the passive tuned mass damping (TMD) is one of the main vibration reduction methods for high-rise building structures to control wind-induced vibration. TMD has the advantages of simple structure and no need for external energy input. It has been applied in actual projects such as Taipei 101 and Shanghai Tower, and its effectiveness has been verified under harsh environmental factors such as typhoons.

[0003] The existing TMD device is mainly a pendulum TMD. The mass components of the pendulum TMD are suspended by ropes from above, and its natural vibration period is positively correlated with the rope length. However, the natural vibration frequency of high-rise buildings often has a low first-order frequency and a long period, which leads to the traditional pendulum TMD requiring a longer pendulum length, which usually occupies a larger vertical space inside the building, affecting the utilization rate of the building's vertical space.

[0004] In addition, for conventional building structures, the first two modes of the structure are usually translational motions, and the translational directions are usually perpendicular to each other. The first-order mode has a longer period than the second-order mode, which means that the cross-sectional stiffness of the building is small when it is bent in the first-order mode, so the axis that bends and deforms around this axis is called the weak axis; correspondingly, the cross-sectional stiffness is large when it is bent in the second-order mode, so the axis that bends and deforms around this axis is called the strong axis. Currently, most of the existing TMD devices are designed for vibration reduction of the first-order mode of the building structure, that is, one-way vibration reduction control is adopted for the deformation mode of the structure bending and deforming around the weak axis. The structure and design method of a single TMD that can achieve two-way control of vibration reduction performance have yet to be explored.

[0005] At the same time, as the building structure is used, the translation period of the building structure will change, so that the natural vibration period of the TMD device and the translation period of the building structure differ greatly, making the vibration reduction effect worse.

[0006] Therefore, there is an urgent need for a swing-type passive tuned mass damper, which can reduce the vertical space occupied by the building compared with the pendulum TMD, and can achieve two-way vibration reduction and natural vibration period adjustment, which can well meet the vibration reduction needs of high-rise buildings. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a swing-type passive tuned mass damper, which solves the technical problems that the traditional pendulum TMD occupies a large building space and cannot achieve bidirectional vibration reduction and adjust the natural vibration period.

[0009] (II) Technical solution

[0010] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0011] A swing type passive tuned mass damper comprises: a mass component, a first base, a connecting assembly, a second base and a force transmission assembly;

[0012] The mass component is swingably arranged on the top of the first base; the mass component comprises a columnar body and a spherical cap-shaped base, and the spherical cap-shaped base is arranged at the bottom of the columnar body;

[0013] The second base is arranged outside the first base, and the second base is a rectangular frame structure;

[0014] The force transmission component connects the second base and the connection component to attenuate the displacement of the connection group along the second base.

[0015] It also includes a follower component, which is arranged at the periphery of the mass component and is hinged to the mass component;

[0016] The middle part of the follower component has a hollow structure, and the hollow structure includes a plurality of stiffening ribs arranged at equal intervals;

[0017] A first hinge seat for hinged connection with the mass component is arranged on the inner side of the follower component, and a second hinge seat for hinged connection with the connecting assembly is arranged on the bottom of the follower component.

[0018] The bottom of the first base is fixedly connected to the building structure, the top of the first base is provided with a groove, and the spherical cap base is arranged in the groove.

[0019] The second base comprises rods arranged along a first direction and a second direction, the first direction is perpendicular to the second direction, the rods are sequentially connected through fixing seats to form a rectangular frame structure, and the bottom of the fixing seat is fixedly connected to the building structure;

[0020] The fixing seat is respectively provided with a first through hole and a second through hole corresponding to the rods in the first direction and the second direction, the extension direction of the first through hole is perpendicular to the second through hole, and the rods in the first direction and the second direction are respectively plugged into the first through hole and the second through hole;

[0021] A third base is arranged in pair below the second base, and the bottom of the third base is fixedly connected to the building structure.

[0022] The connecting assembly comprises a connecting tube and a telescopic rod, and the connecting tube is slidably sleeved on the second base;

[0023] The telescopic rod comprises a connecting end and a telescopic end, the connecting end is fixedly connected to the connecting tube, and the telescopic end is hinged to the second hinge seat.

[0024] The force transmission component includes a damping component and an elastic component, the damping component is arranged along a first direction and a second direction, and two ends of the damping component are hinged to the second base and the connecting component respectively;

[0025] The elastic component is disposed between the paired third bases and is slidably connected to the rod;

[0026] A through slot through which the connecting tube can pass is provided in the middle of the third base.

[0027] The elastic component comprises a spring and stoppers detachably arranged at both ends of the spring, and the spring and the stoppers are both sleeved on the rod;

[0028] The width of the limiting member is greater than the through slot of the third base. A protruding annular component is provided on one side of the limiting member connected to the spring. Both ends of the spring are respectively sleeved on the annular component.

[0029] A method for using a swing-type passive tuned mass damper, which is used for the swing-type passive tuned mass damper, comprises the following steps:

[0030] Step 1: Confirm the translation period of the building structure;

[0031] Step 2: Tuning the swing type passive tuned mass damper, the tuning method is as follows:

[0032] Step 2-1: Calculate the natural vibration period T1 in the first direction and the natural vibration period T2 in the second direction of the swing type passive tuned mass damper. The calculation formula is as follows:

[0033]

[0034] Where T1 is the natural vibration period in the first direction, T2 is the natural vibration period in the second direction, m is the total mass of the mass component, J c1 is the moment of inertia of the mass component rotating around the axis parallel to the second direction and passing through the center of mass, J c2 is the moment of inertia of the mass component rotating around the axis of rotation parallel to the first direction and passing through the center of mass, R is the radius of curvature of the groove, r is the radius of curvature of the spherical cap base of the mass component, and h c is the distance from the mass center of the mass component to the bottom of the spherical cap base, k1 is the elastic recovery stiffness of the spring in the first direction, and k2 is the elastic recovery stiffness of the spring in the second direction;

[0035] Step 2-2: Compare the natural vibration period T1 in the first direction and the natural vibration period T2 in the second direction calculated in step 2-1 with the translation period of the building structure. If the natural vibration period of the swing type passive tuned mass damper matches the translation period of the building structure, the tuning is completed.

[0036] If they do not match, adjust R, r, m, h c , J c1 , J c2 , k1, k2 parameters, and repeat step 2-1 until the natural vibration period of the rocking passive tuned mass damper matches the translational period of the building structure.

[0037] Step 3: According to the parameters R, r, h calculated in step 2 c The anti-overturning calculation is performed on the mass component, and the calculation formula is as follows:

[0038]

[0039] Where n is a safety factor less than 1;

[0040] If the inequality holds, the anti-overturning calculation is satisfied; if the inequality does not hold, the parameters of the mass component are adjusted until the mass component satisfies the anti-overturning calculation.

[0041] Step 4: After satisfying the calculations in steps 2 and 3, according to the obtained parameters R, r, m, h c , J c1 , J c2 , k1, k2, and the mass components and springs matching the parameters are installed on the rocking passive tuned mass damper.

[0042] (III) Beneficial effects

[0043] The beneficial effects of the present invention are as follows: the present invention provides a swing-type passive tuned mass damper, in which a swing-type mass component is placed on a first base with a groove, replacing the existing pendulum-type passive tuned mass damping assembly in which the mass component is suspended, thereby saving vertical building space and improving space utilization. At the same time, a bidirectional vibration reduction effect can be achieved.

[0044] The mass component is different from the traditional mass sphere by combining a columnar body with a spherical cap-shaped base. Under the condition of the same total mass, the upper columnar body has a higher space utilization rate and occupies less vertical space, while the spherical cap-shaped base at the bottom enables the mass component to swing, thus satisfying the use function of the mass component.

[0045] By combining the connection component with the follower component, the vertical displacement of the mass component is eliminated, so that the horizontal displacement of the connection component sliding along the second base is consistent with the horizontal displacement of the follower component driven by the swing of the mass component. The connection component moves and squeezes the force transmission component, so that the force transmission component generates a reverse force, thereby achieving the effect of reducing the vibration of the building structure.

[0046] By setting up a second base of the rectangular frame structure, the connecting component can move bidirectionally along the second base, transmit the force to the force transmission component, and then give a reverse force through the force transmission component, so as to realize bidirectional control and vibration reduction of the building structure, thereby meeting the vibration reduction requirements of the building structure.

[0047] By providing a detachable and replaceable elastic component, the swing type passive tuned mass damper can replace springs with different stiffnesses according to the change of the natural vibration period of the building structure during use, and the natural vibration period of the swing type passive tuned mass damper can be adjusted, so that the natural vibration period of the swing type passive tuned mass damper matches the translational period of the building structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A three-dimensional diagram of a swing-type passive tuned mass damper of the present invention;

[0049] Figure 2 is a three-dimensional diagram of the second base of the present invention;

[0050] Figure 3 is a three-dimensional diagram of a fixing base in the second base of the present invention;

[0051] Figure 4 is a three-dimensional diagram of a first base of the present invention;

[0052] Figure 5 is a three-dimensional diagram of the elastic component of the present invention;

[0053] Figure 6 is a three-dimensional diagram of a limiting member in the elastic component of the present invention;

[0054] Figure 7 is a three-dimensional diagram of a damping assembly of the present invention;

[0055] Figure 8 is a stereoscopic view (first viewing angle) of the connection assembly of the present invention;

[0056] Fig. 9 is a stereoscopic view of the connection assembly of the present invention (second viewing angle);

[0057] Fig.10 A three-dimensional diagram of a follower component of the present invention;

[0058] Fig.11A three-dimensional diagram of the first base, the mass component and the follower component of the present invention;

[0059] Fig.12 It is a three-dimensional diagram of the first base, the connecting assembly and the force transmission assembly of the present invention;

[0060] Fig.13 A three-dimensional diagram of a mass component of the present invention;

[0061] Fig.14 A front view of the mass component of the present invention;

[0062] Fig.15 Side view of the mass component of the present invention.

[0063] [Description of Reference Numerals]

[0064] 1: mass component; 11: columnar body; 12: spherical cap base;

[0065] 2: second base; 21: rod; 22: fixing seat; 221: first through hole; 222: second through hole;

[0066] 3: first base; 31: groove; 32: railing;

[0067] 4: elastic component; 41: limiting component; 42: spring; 43: annular component;

[0068] 5: damping assembly; 51: cylinder; 52: piston; 53: third hinge seat;

[0069] 6: connecting assembly; 61: connecting tube; 62: telescopic rod;

[0070] 7: follower component; 71: first hinge seat; 72: second hinge seat;

[0071] 8: The third base;

[0072] a: first direction;

[0073] b: second direction;

[0074] c: Center of mass. DETAILED DESCRIPTION

[0075] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Fig.13 The orientation is used as a reference.

[0076] The embodiment of the present invention proposes a swing-type passive tuned mass damper. When the building structure generates wind-induced vibration, the mass component 1 can swing on the first base 3, drive the connecting component 6 to squeeze the force transmission component, so that the force transmission component forms a reverse force on the connecting component, and then transmits it to the building structure through the second base 2, thereby achieving vibration reduction of the building structure. The overall height of the swing-type passive tuned mass damper is small, which can reduce the occupation of the vertical building space. The second base 2 is a rectangular frame structure, and the connecting component 6 can slide in multiple directions along the second base 2, and then achieve force transmission through the second base 2. The force transmission component connects the connecting component 6 and the second base 2, applies a reverse force to the connecting component 6, and then transmits it to the building structure through the first base 3 and the second base 2, thereby achieving vibration reduction of the building structure. Among them, the force transmission component includes a spring, and the natural vibration period of the force transmission component can be adjusted by replacing the spring.

[0077] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0078] Embodiment 1:

[0079] See attached Figure 1 As shown, an embodiment of the present invention proposes a swing-type passive tuned mass damper, including a first base 3, a mass component 1, a follower component 7, a connecting assembly 6, a second base 2 and a force transmission assembly. The mass component 1 is swingably placed on the top of the first base 3, and the bottom of the mass component 1 has a spherical cap base, so that the mass component 1 can swing on the top of the first base 3. The follower component 7 is arranged in the middle of the mass component 1, and the follower component 7 moves with the swing of the mass component 1. The second base 2 is fixed on the building structure, and the second base 2 is a rectangular frame structure. The second base 2 surrounds the first base 3 and is concentrically arranged with the first base 3. The connecting assembly 6 is slidably connected to the second base 2, and the follower component 7 is connected to the second base 2 through a retractable connecting assembly 6. The two ends of the force transmission component are connected to the connecting component 6 and the second base 2. When the building structure vibrates, the mass component 1 swings in a certain direction, driving the follower component 7 to move. The follower component 7 drives the connecting component 6 to slide along the second base 2. The force transmission component gives the sliding connecting component 6 a reverse force, and the reverse force is transmitted to the building structure through the first base 3 and the second base 2 to achieve a vibration reduction effect.

[0080] See attached Figure 4As shown, the first base 3 is fixed on the building structure. The first base 3 is a circular chassis structure. A circular groove 31 is provided on the top of the first base 3, so that a guardrail 32 is formed at the outer edge of the first base 3 to limit the movement of the mass component 1.

[0081] See attached Fig.13 As shown, the mass component 1 is placed on the groove 31 of the first base 3, and the mass component 1 includes a column 11 and a spherical cap base 12, the spherical cap base 12 is arranged at the bottom of the column 11, and the spherical cap base 12 is fixedly connected to the column 11. When the building structure generates wind-induced vibration, the mass component 1 swings in the groove 31 through the spherical cap base 12.

[0082] The geometric properties of traditional mass spheres determine that their space utilization rate is not high. The mass component 1 is different from the traditional mass sphere by adopting a combination of a column 11 and a spherical cap base 12. Under the same total mass, the top column 11 has a higher space utilization rate and occupies less vertical space, and the bottom spherical cap base 12 can make the mass component 1 swing, thereby meeting the use function of the mass component 1 to respond to the wind-induced vibration of the building structure and feed back to the force transmission component.

[0083] See attached Figure 2 As shown, the second base 2 is fixed on the building structure, and the second base 2 is arranged outside the first base 3 and is arranged concentrically with the first base 3. The second base 2 includes rods 21 arranged along a first direction a and a second direction b, the first direction a is perpendicular to the second direction b, and the rods 21 arranged along the first direction a and the second direction b are arranged to form a rectangular frame structure, and adjacent rods 21 are fixedly connected by a fixing seat 22.

[0084] See attached Figure 3 As shown, the fixing seat 22 is a rectangular parallelepiped structure, the bottom of the fixing seat 22 is fixedly connected to the building structure, and the fixing seat 22 is respectively provided with a first through hole 221 and a second through hole 222 corresponding to the rod members 21 in the first direction a and the second direction b, the extension direction of the first through hole 221 is perpendicular to the second through hole 222, and the ends of the rod members 21 are plugged into the fixing seat 22 through the first through hole 221 and the second through hole 222, and the rod members 21 in the first direction a and the second direction b are fixedly connected in sequence through the fixing seat 22 to form a detachable rectangular frame structure, which is convenient for subsequent disassembly and adjustment according to actual needs.

[0085] See attached Fig.11 As shown, the follower component 7 is arranged outside the columnar body 11 and is hinged to the columnar body 11. The follower component 7 is used to transmit the horizontal displacement of the mass component 1 to the elastic component 4 and the damping component 5. The middle part of the follower component 7 has a hollow structure, and the hollow structure includes a plurality of stiffening ribs arranged at equal intervals. The stiffening ribs are arranged in the middle part of the follower component 7 to ensure the overall stiffness of the follower component 7 and reduce its own weight.

[0086] See attached Fig.10 As shown, the inner side of the follower component 7 is provided with a first hinge seat 71 for hinged connection with the mass component 1, and the bottom of the follower component 7 is provided with a second hinge seat 72 for hinged connection with the connecting assembly 6. The follower component 7 is located at the horizontal position of the mass center c of the mass component 1. By setting the follower component 7, the mass component 1 can drive the constraint device 7 to move when it swings.

[0087] See attached Figure 8-9 As shown, the connection assembly 6 includes a connection tube 61 and a telescopic rod 62, the connection tube 61 is slidably sleeved on the rod 21, the telescopic rod 62 includes a connection end and a telescopic end, the connection end of the telescopic rod 62 is fixedly connected to the connection tube 61, and the telescopic end of the telescopic rod 62 is hinged to the second hinge seat 72. In this embodiment, the telescopic rods 62 of the four connection assemblies 6 are respectively hinged to the follower component 7, and the connection tube 61 is respectively slidably connected to the rod 21 in the first direction a and the second direction b.

[0088] By combining the connection assembly 6 and the follower component 7, the vertical displacement of the mass component 1 is eliminated, so that the horizontal displacement of the connection assembly 6 sliding along the second base 2 is consistent with the horizontal displacement of the follower component 7 driven by the swing of the mass component 1.

[0089] When the mass component 1 swings, it drives the constraint device 7 to move, and the constraint device 7 drives the connecting tube 61 to move along the rod 21, and moves the force transmission component through the connecting component 6 to squeeze the force transmission component, so that the force transmission component generates a reverse force, which is then transmitted to the building structure through the first base and the second base 2, so as to achieve the effect of reducing vibration of the building structure.

[0090] See attached Fig.12 As shown, the force transmission component includes a damping component 5 and an elastic component 4. The damping component 5 is arranged along the first direction a and the second direction b. The two ends of the damping component 5 are respectively hinged to the second base 2 and the connecting component 6. The damping component 5 arranged along the first direction a is located below the rod 21, and the damping component 5 arranged along the second direction b is located above the rod 21. The damping component 5 is used to absorb the vibration energy transmitted by the connecting device 6 to slow down the swing of the mass component 1.

[0091] See attached Figure 7 As shown, the damping assembly 5 includes a cylinder 51 and a piston 52. The piston 52 is telescopically arranged in the cylinder 51. The cylinder 51 is hinged to the fixed seat 22 through a third hinge seat 53. The telescopic end of the piston 52 is hinged to the connecting cylinder 61 through the third hinge seat 53. By arranging the damping assembly 5 between the fixed seat 22 and the connecting cylinder 61, the damping effect is achieved while saving the space occupied by the force transmission assembly.

[0092] A third base 8 is also arranged in pairs below the second base 2, and the bottom of the third base 8 is fixed to the building structure. The elastic component 4 is arranged between the paired third bases 8 and is sleeved on the rod 21. The third base 8 is used to limit the displacement of the elastic component 4. A through groove that can pass the connecting tube 61 is provided in the middle of the third base 8, so that the third base 8 can limit the elastic component 4 while not limiting the movement of the connecting tube 61. When the connecting tube 61 moves, the elastic component 4 is squeezed, and under the action of the elastic force of the elastic component 4, a reverse force is given to the connecting tube 61, which is then transmitted to the building structure through the second base 2 and the third base 8 to achieve the effect of reducing the vibration of the building structure.

[0093] See attached Figure 5-6 As shown, the elastic component 4 includes a spring 42 and a stopper 41 detachably arranged at both ends of the spring 42, and the spring 42 and the stopper 41 are both sleeved on the rod 21. The width of the stopper 41 is greater than the through slot of the third base 8, and a ring component 43 is provided on one side of the stopper 41 connected to the spring 42, and the ring component 43 protrudes from the side of the stopper 41, and the two ends of the spring 42 are respectively sleeved on the ring component 43, so that the stopper 41 is fixed to the two ends of the spring 42, thereby limiting the spring 42 between the third base 8.

[0094] According to the change of the translation period of the building structure during use, the spring 42 with different stiffness can be replaced accordingly, and the elastic component 4 can be adjusted, so that the swing type passive tuned mass damper can better match the translation period of the building structure and achieve better continuous vibration reduction effect.

[0095] The present invention provides a swing-type passive tuned mass damper, in which a swing-type mass component 1 is placed on a first base 3 having a groove, replacing the existing pendulum-type passive tuned mass damping assembly that suspends the mass component 1, thereby saving vertical building space and improving space utilization. At the same time, a bidirectional vibration reduction effect can be achieved.

[0096] The mass component 1 is different from the traditional mass sphere by combining a columnar body 11 with a spherical cap base 12. Under the same total mass, the upper columnar body 11 has a higher space utilization rate and occupies less vertical space, and the spherical cap base 12 at the bottom can make the mass component 1 swing, thereby meeting the use function of the mass component 1.

[0097] By combining the connection component 6 and the follower component 7, the vertical displacement of the mass component 1 is eliminated, so that the horizontal displacement of the connection component 6 sliding along the second base 2 is consistent with the horizontal displacement of the follower component 7 driven by the swing of the mass component 1. The connection component 6 moves and squeezes the force transmission component, so that the force transmission component generates a reverse force, thereby achieving the effect of reducing the vibration of the building structure.

[0098] By setting up a second base 2 of a rectangular frame structure, the connecting component 6 can move bidirectionally along the second base 2, transmit the force to the force transmission component, and then give a reverse force through the force transmission component, so as to realize bidirectional control and vibration reduction of the building structure, thereby meeting the vibration reduction requirements of the building structure.

[0099] By providing a detachable and replaceable elastic component 4, the swing type passive tuned mass damper can replace springs 42 with different stiffnesses according to the changes in the natural vibration period of the building structure during use, so as to adjust the natural vibration period of the swing type passive tuned mass damper and match the translational period of the building structure.

[0100] Embodiment 2:

[0101] The embodiment of the present invention further provides a method for using a swing type passive tuned mass damper, which is applied to the above-mentioned swing type passive tuned mass damper and comprises the following steps:

[0102] Step 1: Confirm the translation period of the building structure;

[0103] Step 2: Tune the swing passive tuned mass damper as follows:

[0104] Step 2-1: Calculate the natural vibration period T1 in the first direction a and the natural vibration period T2 in the second direction b of the swing type passive tuned mass damper. The calculation formula is as follows:

[0105]

[0106] See attached Figure 14-15 As shown, T1 is the natural vibration period in the first direction a, T2 is the natural vibration period in the second direction b, m is the total mass of the mass component 1, J c1 is the moment of inertia of the mass component 1 rotating about the axis parallel to the second direction b and passing through the center of mass c, J c2 is the moment of inertia of the mass component 1 rotating around the axis parallel to the first direction a and passing through the center of mass c, R is the radius of curvature of the groove 31, r is the radius of curvature of the spherical cap base of the mass component 1, and h c is the distance from the center of mass c of the mass component 1 to the bottom of the spherical cap base, k1 is the elastic recovery stiffness of the spring 42 in the first direction a, and k2 is the elastic recovery stiffness of the spring 42 in the second direction b;

[0107] Step 2-2: Compare the natural vibration period T1 of the first direction a and the natural vibration period T2 of the second direction b calculated in step 2-1 with the translation period of the building structure. If the natural vibration period of the swing type passive tuned mass damper matches the translation period of the building structure, the tuning is completed.

[0108] If they do not match, adjust R, r, m, h c , J c1 , J c2 , k1, k2 parameters, and repeat step 2-1 until the natural vibration period of the rocking passive tuned mass damper matches the translational period of the building structure.

[0109] Among them, the first two modes of the building structure are both translational states (this translation is relative to the torsion of the structural plane, that is, the building plane does not torsion, and the structure itself is bending deformation), each mode corresponds to a natural vibration period, so the two translational modes have two natural vibration periods. Correspondingly, the natural vibration periods in two directions of the swing passive tuned mass damper must match the two translational periods of the building structure to achieve the effect of bidirectional vibration reduction.

[0110] Step 3: According to the parameters R, r, h calculated in step 2 c The anti-overturning calculation of mass component 1 is performed to verify the stability of mass component 1 during the swinging process. The calculation formula is as follows:

[0111]

[0112] Wherein, n is a safety factor less than 1, which can be selected according to the actual engineering needs; R is the curvature radius of the groove 31; r is the curvature radius of the spherical cap base of the mass component 1; h c is the distance from the center of mass c of mass component 1 to the bottom of the spherical cap base.

[0113] If the inequality holds, the anti-overturning verification is satisfied; if the inequality does not hold, adjust the angle α between the line connecting the center of mass c of mass component 1 to the bottom of the spherical cap base and the line connecting the center of mass c of mass component 1 to the outer edge of the top of the spherical cap base, that is, adjust the parameters of mass component 1 until mass component 1 meets the anti-overturning verification.

[0114] Step 4: After satisfying the calculations in steps 2 and 3, according to the obtained parameters R, r, m, h c , J c1 , J c2 , k1, k2, and the mass component 1 and spring 42 matching the parameters are installed in the swing type passive tuned mass damper.

[0115] The method for using the swing type passive tuned mass damper provided by the present invention can adjust the natural vibration period of the swing type passive tuned mass damper according to the translation period of the building structure, so that the natural vibration period of the swing type passive tuned mass damper matches the translation period of the building structure, thereby improving the shock absorption effect of the swing type passive tuned mass damper in subsequent use.

[0116] At the same time, since the center of gravity of the mass component 1 is too high, it is easy for the mass component 1 to continue to overturn under the action of gravity during the swinging process and cannot recover by itself. Therefore, a mass component 1 that meets the anti-overturning verification is used to ensure the stability of the mass component 1 during the swinging process.

[0117] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0118] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0119] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0120] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0121] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A swing type passive tuned mass damper, characterized in that: include: A mass component (1), a first base (3), a connecting component (6), a second base (2) and a force transmission component; The mass component (1) is swingably arranged on the top of the first base (3); the mass component (1) comprises a columnar body (11) and a spherical cap-shaped base (12), and the spherical cap-shaped base (12) is arranged at the bottom of the columnar body (11); The second base (2) is arranged on the periphery of the first base (3), and the second base (2) is a rectangular frame structure; The force transmission component connects the second base (2) and the connection component (6) to attenuate the displacement of the connection group (6) along the second base (2).

2. The swing type passive tuned mass damper according to claim 1, characterized in that: It also includes a follower component (7), wherein the follower component (7) is arranged on the periphery of the mass component (1) and is hinged to the mass component (1); The middle part of the follower component (7) has a hollow structure, and the hollow structure includes a plurality of stiffening ribs arranged at equal intervals; A first hinge seat (71) for hinged connection with the mass component (1) is provided on the inner side of the follower component (7), and a second hinge seat (72) for hinged connection with the connecting assembly (6) is provided on the bottom of the follower component (7).

3. The swing type passive tuned mass damper according to claim 1, characterized in that: The bottom of the first base (3) is fixedly connected to the building structure, the top of the first base (3) is provided with a groove (31), and the spherical cap-shaped base is arranged in the groove (31).

4. The swing type passive tuned mass damper according to claim 2, characterized in that: The second base (2) comprises rods (21) arranged along a first direction (a) and a second direction (b), the first direction (a) being perpendicular to the second direction (b), the rods (21) being connected in sequence through a fixing seat (22) to form a rectangular frame structure, and the bottom of the fixing seat (22) being fixedly connected to the building structure; The fixing seat (22) is respectively provided with a first through hole (221) and a second through hole (222) corresponding to the rod (21) in the first direction (a) and the second direction (b); the extension direction of the first through hole (221) is perpendicular to the second through hole (222); the rod (21) in the first direction (a) and the second direction (b) are respectively plugged into the first through hole (221) and the second through hole (222); A third base (8) is also arranged in pair below the second base (2), and the bottom of the third base (8) is fixedly connected to the building structure.

5. The swing type passive tuned mass damper according to claim 4, characterized in that: The connecting assembly (6) comprises a connecting tube (61) and a telescopic rod (62), wherein the connecting tube (61) is slidably sleeved on the second base (2); The telescopic rod (62) comprises a connecting end and a telescopic end, the connecting end is fixedly connected to the connecting tube (61), and the telescopic end is hinged to the second hinge seat (73).

6. The swing type passive tuned mass damper according to claim 5, characterized in that: The force transmission component comprises a damping component (5) and an elastic component (4); the damping component (5) is arranged along a first direction (a) and a second direction (b); two ends of the damping component (5) are respectively hinged to the second base (2) and the connecting component (6); The elastic component (4) is arranged between the paired third bases (8) and is slidably connected to the rod (21); A through slot through which the connecting tube (61) can pass is provided in the middle of the third base (8).

7. The swing type passive tuned mass damper according to claim 6, characterized in that: The elastic component (4) comprises a spring (42) and stoppers (41) detachably arranged at both ends of the spring (42), and the spring (42) and the stoppers (41) are both sleeved on the rod (21); The width of the limiting member (41) is greater than the through slot of the third base (8); a protruding annular component (43) is provided on one side of the limiting member (41) connected to the spring (42); and both ends of the spring (42) are respectively sleeved on the annular component (4).

8. A method for using a swing type passive tuned mass damper, used for the swing type passive tuned mass damper according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Confirm the translation period of the building structure; Step 2: Tuning the swing type passive tuned mass damper, the tuning method is as follows: Step 2-1: Calculate the natural vibration period T1 in the first direction (a) and the natural vibration period T2 in the second direction (b) of the swing type passive tuned mass damper. The calculation formula is as follows: Wherein, T1 is the natural vibration period in the first direction (a), T2 is the natural vibration period in the second direction (b), m is the total mass of the mass component (1), J c1 is the moment of inertia of the mass component (1) rotating about the axis of rotation parallel to the second direction (b) and passing through the center of mass (c), J c2 is the moment of inertia of the mass component (1) rotating about a rotation axis parallel to the first direction (a) and passing through the center of mass (c), R is the radius of curvature of the groove (31), r is the radius of curvature of the spherical cap base of the mass component (1), and h c is the distance from the center of mass (c) of the mass component (1) to the bottom of the spherical cap-shaped base, k1 is the elastic recovery stiffness of the spring (24) in the first direction (a), and k2 is the elastic recovery stiffness of the spring (42) in the second direction (b); Step 2-2: Compare the natural vibration period T1 in the first direction (a) and the natural vibration period T2 in the second direction (b) calculated in step 2-1 with the translation period of the building structure. If the natural vibration period of the swing type passive tuned mass damper matches the translation period of the building structure, the tuning is completed. If they do not match, adjust R, r, m, h c , J c1 , J c2 , k1, k2 parameters, and repeat step 2-1 until the natural vibration period of the rocking passive tuned mass damper matches the translational period of the building structure.

9. The method for using the swing type passive tuned mass damper according to claim 8, characterized in that: Also includes: Step 3: According to the parameters R, r, h calculated in step 2 c The mass component (1) is subjected to an anti-overturning calculation, and the calculation formula is as follows: Where n is a safety factor less than 1; If the inequality holds, the anti-overturning calculation is satisfied; if the inequality does not hold, the parameters of the mass component (1) are adjusted until the mass component (1) satisfies the anti-overturning calculation.

10. The method for using the swing type passive tuned mass damper according to claim 9, characterized in that: Also includes: Step 4: After satisfying the calculations in steps 2 and 3, according to the obtained parameters R, r, m, h c , J c1 , J c2 , k1, k2, and a mass component (1) and a spring (42) matching the parameters are installed on the swing type passive tuned mass damper.

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