Periodic vibration damping structure and method of mounting same

Abstract

The present application is suitable for the field of structural engineering, and provides a periodic damping structure and a mounting method thereof, the periodic damping structure comprising a lattice framework and a vibrator unit, the stiffness of the vibrator unit being adjustable; the vibrator unit is detachably connected with the lattice framework, and the included angle between the vibrator unit and any side surface of the lattice framework is adjustable; the lattice framework is spliced, and then the vibrator unit is mounted in the lattice framework, and the stiffness of the vibrator unit is adjusted according to different frequency excitations; through the detachable connection between the vibrator unit and the lattice framework, and under the action of the vibrator unit with adjustable stiffness, the mounting mode and quantity between the vibrator unit and the lattice framework are changed, so that the change of the band gap characteristics in the structure under different frequency excitations is realized, and then the optimal vibration isolation effect can be obtained in different frequency ranges, and the present application can be widely applied to various use environments.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of engineering structure, and particularly relates to a periodic vibration reduction structure and a mounting method thereof. BACKGROUND

[0002] In some defense fields, such as weapon equipment like warships and submarines, due to the poor working environment, many precision instruments in the structure are long-term in a large vibration environment, which will affect the precision and service life of the precision instruments; how to effectively isolate the vibration becomes the focus of scholars;

[0003] In recent years, with the concept of phononic crystal being proposed, scholars have paid wide attention to it; the phononic crystal is a kind of artificial periodic structure, and the periodically arranged materials or structures can be called artificial periodic structures; researches show that the elastic wave in a specific frequency range will be inhibited by the periodic structure, and the frequency range is called a band gap, which provides a new thought for the vibration reduction and noise reduction of traditional engineering structures: the engineering structures (such as rods, beams, plates, etc.) are designed into special artificial periodic structures, so that the structures have the band gap characteristics, the wave propagation in the structure is inhibited by using the band gap characteristics, and then the vibration reduction and noise reduction of the structure are achieved.

[0004] Although the existing vibration reduction and noise reduction engineering structures can achieve the vibration reduction and noise reduction purpose, due to the fixedness of the vibration reduction units, the vibration isolation effect in different frequency ranges is the same, so that the vibration isolation effect has considerable difference. SUMMARY

[0005] The embodiment of the present application aims to provide a periodic vibration reduction structure and a mounting method thereof, and aims to solve the problems in the background art.

[0006] The embodiment of the present application is implemented as follows: a periodic vibration reduction structure, the periodic vibration reduction structure comprises:

[0007] a lattice framework, the lattice framework is provided with at least one group, adjacent end points between a plurality of groups of lattice frameworks are connected to each other, and the plurality of groups of lattice frameworks are periodically arranged;

[0008] a vibrator unit, the vibrator unit is provided with at least one group, the vibrator unit is arranged in the lattice framework, two ends of the vibrator unit are connected to two non-adjacent end points of the lattice framework respectively, and the stiffness of the vibrator unit can be adjusted;

[0009] a plurality of groups of lattice frameworks are provided with at least one group of vibrator units, and the vibrator units and the lattice frameworks are arranged in the same periodicity in at least one direction;

[0010] The oscillator unit is detachably connected to the lattice structure, and the included angle between the oscillator unit and any side of the lattice structure can be adjusted.

[0011] Another objective of this invention is to provide an installation method for a vibration damping structure. The method employs the aforementioned periodic vibration damping structure and includes the following steps: connecting and fixing the lattice architecture, connecting the lattice architectures according to a periodic arrangement, connecting the oscillator units to non-adjacent endpoints within the lattice architecture, connecting several groups of oscillator units to several groups of lattice architectures through periodicity in at least one direction within the lattice architecture, and adjusting the stiffness of the oscillator units according to excitation at different frequencies.

[0012] The technical solutions provided in the embodiments of the present invention have the following technical effects compared with the prior art:

[0013] The periodic vibration damping structure provided in this invention comprises splicing together a crystal architecture and connecting the crystal architectures according to a periodic arrangement. The oscillator units are then installed within the crystal space formed by the crystal architecture, and the stiffness of the oscillator units is adjusted according to different frequency excitations. Several groups of oscillator units are arranged according to the periodicity of at least one direction in the crystal architecture, and all groups of oscillator units are connected to the crystal architecture. This structure is simple and easy to install. Through the detachable connection between the oscillator units and the crystal architecture, and with the adjustable stiffness of the oscillator units, the bandgap characteristics of the structure can be changed under different frequency excitations by altering the installation method and number of the oscillator units. This results in superior vibration isolation effects across different frequency ranges and makes it widely applicable to various operating environments. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a periodic vibration reduction structure provided in an embodiment of the present invention;

[0015] Figure 2 for Figure 1 Schematic diagram of the middle connector;

[0016] Figure 3 for Figure 1 A three-dimensional structural diagram of the central adjustment unit;

[0017] Figure 4 for Figure 1 Top view of the central adjustment unit;

[0018] Figure 5 for Figure 1 Main view of the adjustment unit;

[0019] Figure 6 For Figure 1 The perspective view of the middle clamping piece;

[0020] Figure 7 For Figure 1 The top view of the middle clamping piece;

[0021] Figure 8 For Figure 1 The front view of the middle clamping piece;

[0022] Figure 9 For Figure 1 The perspective view of the connection structure of the middle clamping piece and the adjusting unit;

[0023] Figure 10 For Figure 1 The perspective view of the vibrator unit;

[0024] Figure 11 The perspective view of the connection structure of the vibrator unit and the lattice frame structure provided by another embodiment of the application;

[0025] Figure 12 For Figure 11 The top view of the vibrator unit;

[0026] Figure 13 For Figure 11 The side view of the vibrator unit;

[0027] Figure 14 The perspective view of the connection structure of the vibrator unit and the lattice frame structure provided by another embodiment of the application;

[0028] Figure 15 For Figure 14 The top view of the vibrator unit;

[0029] Figure 16 For Figure 14 The side view of the vibrator unit;

[0030] Figure 17 The perspective view of the connection structure of the vibrator unit and the lattice frame structure provided by another embodiment of the application;

[0031] Figure 18 For Figure 17 The top view of the vibrator unit;

[0032] Figure 19 For Figure 17 The side view of the vibrator unit;

[0033] Figure 20 The perspective view of the connection structure of the vibrator unit and the lattice frame structure provided by another embodiment of the application;

[0034] Figure 21 ForFigure 20 Top view;

[0035] Figure 22 for Figure 20 Side view;

[0036] Figure 23 This is a schematic diagram of a connection structure between an oscillator unit and a lattice architecture, provided in another embodiment of the present invention.

[0037] Figure 24 for Figure 23 Top view;

[0038] Figure 25 for Figure 23 Side view;

[0039] Figure 26 This is a schematic diagram of a connection structure between an oscillator unit and a lattice architecture, provided in another embodiment of the present invention.

[0040] Figure 27 for Figure 26 Top view;

[0041] Figure 28 for Figure 26 Side view;

[0042] Figure 29 This is a schematic diagram of a connection structure between an oscillator unit and a lattice architecture, provided in another embodiment of the present invention.

[0043] Figure 30 for Figure 29 Top view;

[0044] Figure 31 for Figure 29 Side view;

[0045] Figure 32 A schematic diagram of the band structure of a periodic vibration reduction structure provided in another embodiment of the present invention;

[0046] Figure 33 A schematic diagram of the band structure curve of a periodic vibration reduction structure provided in another embodiment of the present invention;

[0047] Figure 34 This is a schematic diagram of the test result curves for a periodic vibration reduction structure provided in another embodiment of the present invention.

[0048] In the attached figures: 1-connector; 2-first connecting hole; 3-second connecting hole; 4-connecting rod; 5-adjusting unit; 6-first adjusting hole; 7-second adjusting hole; 8-clamping component; 9-bore; 10-third connecting hole; 11-clamping groove; 12-actuating plate; 13-counterweight; 14-fixing component; 15-fixing groove; 16-support rod; 17-fastener. DETAILED DESCRIPTION

[0049] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0050] The specific implementation of the present application will be described in detail below with reference to specific embodiments.

[0051] As shown in FIG. 1, a structural diagram of a periodic vibration reduction structure provided by an embodiment of the present application comprises a periodic vibration reduction structure, which comprises: Figure 1

[0052] a lattice framework, the lattice framework is provided with at least one group, adjacent end points between a plurality of groups of the lattice framework are connected to each other, and the plurality of groups of the lattice framework are periodically arranged;

[0053] a vibrator unit, the vibrator unit is provided with at least one group, the vibrator unit is arranged in the lattice framework, two ends of the vibrator unit are connected to two non-adjacent end points of the lattice framework respectively, and the stiffness of the vibrator unit can be adjusted;

[0054] at least one group of the vibrator units is arranged in the plurality of groups of the lattice framework, and the vibrator units and the lattice framework are arranged in the same periodicity in at least one direction;

[0055] the vibrator unit and the lattice framework are detachably connected, and the included angle between any side surface of the vibrator unit and the lattice framework can be adjusted;

[0056] In the embodiment of the present application, the lattice framework is spliced in the embodiment of the present application, the lattice framework is connected according to the periodic arrangement, the vibrator unit is installed in the lattice space formed in the lattice framework, the stiffness of the vibrator unit is adjusted according to the excitation of different frequencies, a plurality of groups of the vibrator units are arranged according to the periodicity in at least one direction of the lattice framework, and the plurality of groups of the vibrator units are connected to the lattice framework; the structure is simple and convenient to install, the detachable connection between the vibrator unit and the lattice framework is realized under the action of the vibrator unit with adjustable stiffness, the installation mode and the number between the vibrator unit and the lattice framework can be changed to realize the change of the bandgap characteristics in the structure under the excitation of different frequencies, and then the optimal vibration isolation effect can be obtained in different frequency ranges, so that the present application can be widely applied to various use environments.

[0057] As shown in FIG. 2, a structural diagram of a periodic vibration reduction structure provided by another embodiment of the present application comprises a periodic vibration reduction structure, which comprises: Figure 1 Figure 2 ​​As shown, as a preferred embodiment of the present application, the lattice framework comprises connecting pieces 1 and connecting rods 4, the connecting pieces 1 are connected with the connecting rods 4, both ends of the connecting rods 4 are provided with the connecting pieces 1 and at least two groups of connecting rods 4 are connected on the connecting pieces 1, the outer side wall of the connecting pieces 1 is provided with a plurality of groups of connecting holes, the connecting holes are matched with the connecting pieces 1 and the vibrator units;

[0058] By connecting the connecting rods 4 with the connecting pieces 1, and then connecting at least two groups of connecting rods 4 on the connecting pieces 1 to form a closed figure, and then connecting the closed figure with another group of closed figures through the connecting rods 4, the lattice framework is formed.

[0059] The connecting pieces 1 can adopt polyhedron, spherical and the like, and here the spherical is preferred, a plurality of groups of grooves are further provided on the connecting pieces 1, the grooves are used for applying excitation to the periodic damping structure and testing response, the damping effect of the periodic damping structure can be measured by applying excitation to a group of connecting pieces 1 and then testing response on another group of connecting pieces 1.

[0060] The connecting holes here preferably adopt threaded holes, and can also be selected according to requirements, the connecting holes comprise first connecting holes 2 and second connecting holes 3, the first connecting holes 2 and the second connecting holes 3 are matched with the connecting rods 4 and the support rods 16 respectively, the first connecting holes 2 and the second connecting rods 3 are used for connecting and fixing the connecting pieces 1 with the connecting rods 4 and the vibrator units, the connecting holes adopt threaded holes, which is convenient for disassembling the connecting pieces 1, the connecting rods 4 and the vibrator units.

[0061] The connecting rods 4 can adopt circular, multi-transformation and the like, and here the circular is preferred, both ends of the connecting rods 4 are provided with threads, and the threads are connected with the connecting pieces 1.

[0062] Preferably, both ends of the connecting rods 4 are provided with the connecting pieces 1 and at least two groups of connecting rods 4 are connected on the connecting pieces 1, a plurality of groups of connecting rods 4 are connected end to end to form a closed columnar structure, the columnar structure here preferably adopts a cube, and can also be selected according to requirements, the columnar structures are arranged periodically and connected two by two, and the connecting pieces 1 on the connected faces are coincided, thereby forming a two-dimensional crystal framework.

[0063] As shown in the figure, as a preferred embodiment of the present application, the lattice framework comprises connecting pieces 1 and connecting rods 4, the connecting pieces 1 are connected with the connecting rods 4, both ends of the connecting rods 4 are provided with the connecting pieces 1 and at least two groups of connecting rods 4 are connected on the connecting pieces 1, the outer side wall of the connecting pieces 1 is provided with a plurality of groups of connecting holes, the connecting holes are matched with the connecting pieces 1 and the vibrator units; Figure 10As shown, as another preferred embodiment of the present application, the vibrator unit comprises a connecting structure and an adjusting structure, the connecting structure and the adjusting structure are connected, the connecting structure is arranged between two non-adjacent end points of the lattice structure, the adjusting structure is arranged between the connecting structure and the lattice structure, the connecting structure is used for fixing the inside of the lattice structure, and the adjusting structure is used for adjusting the rigidity of the connecting structure.

[0064] As shown, as another preferred embodiment of the present application, the connecting structure comprises an actuating plate 12 arranged inside the lattice structure, a plurality of sets of fixing grooves 15 are arranged on the actuating plate 12, clamping pieces 8 are arranged at both ends of the actuating plate 12, bosses 9 are arranged on the side of the clamping pieces 8 away from the actuating plate 12, the bosses 9 are connected with the adjusting structure, third connecting holes 10 are arranged on the side wall of the clamping pieces 8, the third connecting holes 10 are matched with the fixing grooves 15, clamping grooves 11 are arranged on the side of the clamping pieces 8 close to the actuating plate 12, and the clamping grooves 11 are matched with the actuating plate 12. Figures 6-8 Figure 10 As shown, as another preferred embodiment of the present application, the connecting structure comprises an actuating plate 12 arranged inside the lattice structure, a plurality of sets of fixing grooves 15 are arranged on the actuating plate 12, clamping pieces 8 are arranged at both ends of the actuating plate 12, bosses 9 are arranged on the side of the clamping pieces 8 away from the actuating plate 12, the bosses 9 are connected with the adjusting structure, third connecting holes 10 are arranged on the side wall of the clamping pieces 8, the third connecting holes 10 are matched with the fixing grooves 15, clamping grooves 11 are arranged on the side of the clamping pieces 8 close to the actuating plate 12, and the clamping grooves 11 are matched with the actuating plate 12.

[0065] By matching the actuating plate 12 with the clamping grooves 11, connecting the clamping pieces 8 with the actuating plate 12 through the fixing grooves 15 and the third connecting holes 10, and connecting the two ends of the actuating plate 12 with the two non-adjacent connecting pieces 1 through the adjusting structure, the inside of the lattice structure is fixed, and vibration is reduced.

[0066] The actuating plate 12 can be rectangular, circular, etc., and is preferably rectangular, the actuating plate 12 is used for connecting and fixing two non-adjacent connecting pieces 1 in the lattice structure, thereby connecting and fixing the lattice structure, and further reducing the vibration excitation transmitted in the lattice structure to improve the vibration reduction effect.

[0067] The third connecting holes 10 and the fixing grooves 15 are preferably threaded grooves, and can also be selected according to requirements, a fixing piece 14 is arranged between the third connecting holes 10 and the fixing grooves 15, the fixing piece 14 is preferably a bolt, and the actuating plate 12 is connected with the clamping pieces 8 and the counterweight 13 through the bolt.

[0068] The boss 9 is fixedly connected with the clamping piece 8, a thread is arranged on the side surface of the boss 9, the thread is matched with the adjusting unit 5, the clamping piece 8 is connected with the adjusting unit by rotating the boss 9, and the distance between the adjusting unit 5 and the clamping piece 8 is adjusted through the thread. ​

[0069] As Figures 3-5 and Figure 9 shown, as another preferred embodiment of the present application, the adjusting structure comprises an adjusting unit 5, which is arranged at one end of the connecting structure, both ends of the adjusting unit 5 are provided with adjusting holes, which are connected with the connecting structure, one end of the adjusting unit 5 away from the connecting structure is provided with a support rod 16, the support rod 16 is sleeved with a fastener 17, the support rod 16 is matched with the adjusting hole, and the support rod 16 is connected with the lattice structure;

[0070] By connecting the support rod 16 with the connecting piece 1, the support rod 16 is firmly connected with the connecting piece 1 by rotating the fastener 17, and then the distance between the two groups of adjusting units 5 is adjusted by rotating the adjusting unit 5, so as to adjust the length of the vibrator unit, and then the stiffness of the vibrator unit is adjusted;

[0071] The adjusting unit 5 can adopt a circular shape, a polygonal shape, etc., and here a hexagonal shape is preferred, so as to facilitate the rotation of the adjusting unit 5 by applying a torque, and when the adjusting unit 5 rotates, the distance between the adjusting unit 5 and the clamping piece 8 is changed due to the threaded connection between the adjusting unit 5 and the clamping piece 8, so as to adjust the length of the vibrator unit, and then the stiffness of the vibrator unit is adjusted to be suitable for excitation of different frequencies;

[0072] The adjusting hole here preferably adopts a threaded hole, and can also be selected according to requirements, the adjusting hole comprises a first adjusting hole 6 and a second adjusting hole 7, the first adjusting hole 6 and the second adjusting hole 7 are respectively connected with the boss 9 and the support rod 16, by rotating the adjusting unit 5, the first adjusting hole 6 and the second adjusting hole 7 relatively move with the boss 9 and the support rod 16, so as to adjust the length of the vibrator unit;

[0073] The support rod 16 here preferably adopts a screw rod, and can also be selected according to requirements, one end of the support rod 16 is connected with the adjusting unit 5, and the other end of the support rod 16 is connected with the connecting piece 1;

[0074] The fastener 17 here preferably adopts a bolt, and can also be selected according to requirements, the fastener 17 is used to connect and fasten the support rod 16 with the connecting piece 1.

[0075] As Figure 10 shown, as another preferred embodiment of the present application, the side wall of the actuating plate 12 is provided with a counterweight 13, which is connected with the actuating plate 12.

[0076] The fixed part 14 connects the counterweight 13 and the actuating plate 12, and the gravity potential energy of the counterweight 13 is applied to the actuating plate 12, so that the vibration frequency of the actuating plate 12 under external force is reduced, and the vibration conduction of the actuating plate 12 is reduced, so that the vibration reduction effect is achieved.

[0077] As shown in Figures 1-10 The embodiment of the present application also provides a mounting method of the vibration reduction structure, which adopts the periodic vibration reduction structure, and the mounting method of the vibration reduction structure further comprises the following steps: connecting and fixing the lattice structure, connecting the lattice structures according to the periodic arrangement, connecting the vibrator units and the non-adjacent end points in the lattice structure, connecting the vibrator units and the lattice structures according to the periodicity of at least one direction of the lattice structure, and adjusting the rigidity of the vibrator units according to the excitation of different frequencies.

[0078] In the embodiment of the present application, the method comprises the following steps:

[0079] Step 1: connecting the connection rods 4 and the connection parts 1, and forming a closed two-dimensional crystal structure through periodic arrangement;

[0080] Step 2: connecting the counterweight 13 and the actuating plate 12;

[0081] Step 3: clamping and fixing the actuating plate 12 through the clamping part 8;

[0082] Step 4: connecting the clamping part 8 and the actuating plate 12 and the non-adjacent two connection parts 1 through the adjusting unit 5;

[0083] Step 5: adjusting the rigidity of the vibrator unit by rotating the adjusting unit 5 to adjust the length of the vibrator unit.

[0084] Preferably, if the plane of the lattice structure in contact with the ground is taken as a reference plane, and the lattice structure is preferably provided with two first planes and a second plane which are the same as the reference plane, the first plane is located between the reference plane and the second plane, and a third plane is parallel to the plane perpendicular to the reference plane and the side wall of the lattice structure, and the connection method of the vibrator unit and at least one side wall of the lattice structure comprises:

[0085] As shown in Figures 11-13 The vibrator unit is parallel to the reference plane, and the vibrator unit is located on the reference plane and the second plane respectively.

[0086] As shown in Figures 14-16 the vibrator units are parallel to the reference plane, and the vibrator units are located on the reference plane and the first plane and the second plane respectively;

[0087] As shown in Figures 20-22 the vibrator units are parallel to the reference plane, and the vibrator units are located on the reference plane and the first plane and the second plane respectively;

[0088] As shown in Figures 23-25 the vibrator units are parallel to the reference plane, and the vibrator units are located on the reference plane and the first plane and the second plane respectively;

[0089] As shown in Figures 26-28 the vibrator units are parallel to the reference plane, and the vibrator units are located on the reference plane and the first plane and the second plane respectively;

[0090] Preferably, if the plane of the lattice structure in contact with the ground is taken as the reference plane, and the lattice structure is preferably provided with two first planes and second planes which are the same as the reference plane, the first plane is located between the reference plane and the second plane, and the third plane is taken as a plane parallel to the plane perpendicular to the reference plane of the side wall of the lattice structure, the connection method of the vibrator units which are not parallel to all the side walls of the lattice structure includes:

[0091] As shown in Figures 17-19 the vibrator units are parallel to the reference plane, and the vibrator units are located on the reference plane and the first plane and the second plane respectively;

[0092] Preferably, if the plane of the lattice structure in contact with the ground is taken as the reference plane, and the lattice structure is preferably provided with two first planes and second planes which are the same as the reference plane, the first plane is located between the reference plane and the second plane, and the third plane is taken as a plane parallel to the plane perpendicular to the reference plane of the side wall of the lattice structure, the connection method of the vibrator units which are not parallel to all the side walls of the lattice structure includes:

[0093] As shown in Figures 29-31 a group of vibrator units are connected with the reference plane and are arranged on the reference plane, and another group of vibrator units have an angle with the reference plane, and the two ends of the vibrator units are located in the first plane and the reference plane respectively.

[0094] As Figure 32 shown, as another preferred embodiment of the application, the structure is calculated by COMSOL software, and the calculation result shows that the structure has band gap characteristics in the range of 371.26Hz to 595.84Hz, and the structure will inhibit the propagation of elastic waves in the structure in the range of 371.26Hz to 595.84Hz, that is, the designed raft has a damping effect.

[0095] As Figure 33 shown, as another preferred embodiment of the application, the vibrator unit is parallel to the reference surface, the vibrator unit is located on the first plane, the two ends of the vibrator unit are located on two different groups of third planes, and there is only one gap between the two adjacent groups of vibrator units generated by the lattice structure, and the calculated band structure diagram shows that there is a band gap between 376.95Hz and 977.79Hz.

[0096] Preferably, as Figure 34 shown, 371.26Hz to 595.84Hz in the figure is the frequency range calculated to have a band gap, and it can be seen that the damping effect of the structure in this area is obvious.

[0097] The above embodiments of the application provide a periodic damping structure, and based on the periodic damping structure, a mounting method of the damping structure is provided, the inside of the lattice structure is connected and fixed, the lattice structures are connected according to the periodic arrangement, the vibrator unit is connected with the two non-adjacent end points in the lattice structure, the stiffness of the vibrator unit is adjusted according to the excitation of different frequencies, and several groups of vibrator units are arranged according to the periodicity of at least one direction of the crystal structure and connected with the lattice structure; the structure is simple and convenient to install, can change the band gap characteristics in the structure under different frequency excitations, and can obtain a better damping effect in different frequency ranges, and can be widely applied to various use environments.

[0098] The above only describes the preferred embodiments of the application and is not intended to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A periodic vibration reduction structure, characterized by, The periodic damping structure comprises: a lattice framework, at least one group of which is arranged, adjacent end points between several groups of the lattice framework are connected to each other, and the several groups of the lattice framework are periodically arranged; a vibrator unit, at least one group of which is arranged, the vibrator unit is arranged in the lattice framework, two ends of the vibrator unit are connected to two non-adjacent end points of the lattice framework respectively, and the stiffness of the vibrator unit can be adjusted; at least one group of the vibrator unit is arranged in the several groups of the lattice framework, and the vibrator unit and the lattice framework are arranged in the same periodicity in at least one direction; the vibrator unit and the lattice framework are detachably connected, the included angle between the vibrator unit and any side of the lattice framework can be adjusted, the lattice framework comprises a connecting piece and a connecting rod, the connecting piece is connected to the connecting rod, two ends of the connecting rod are provided with the connecting piece, at least two groups of the connecting rods are connected to the connecting piece, and the outer wall of the connecting piece is provided with a plurality of groups of connecting holes which are matched with the connecting piece and the vibrator unit; a plurality of groups of air slots are further arranged on the connecting piece, the vibrator unit comprises a connecting structure and an adjusting structure, the connecting structure and the adjusting structure are connected, the adjusting structure comprises an adjusting unit, the adjusting unit is arranged at one end of the connecting structure, a support rod is arranged at the end of the adjusting unit away from the connecting structure, the connecting structure is arranged between the two non-adjacent end points of the lattice framework, the connecting hole comprises a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are matched with the connecting rod and the support rod respectively, the adjusting structure is arranged between the connecting structure and the lattice framework, the connecting structure is used for fixing the inside of the lattice framework, and the adjusting structure is used for adjusting the stiffness of the connecting structure; the connecting structure comprises an actuating plate, the actuating plate is arranged in the lattice framework, a plurality of groups of fixing grooves are arranged on the actuating plate, two ends of the actuating plate are provided with clamping pieces, a boss is arranged on the side of the clamping piece away from the actuating plate, the boss is connected to the adjusting structure, a third connecting hole is arranged on the side wall of the clamping piece, the third connecting hole is matched with the fixing groove, a clamping groove is arranged on the side of the clamping piece close to the actuating plate, the clamping groove is matched with the actuating plate, the actuating plate adopts a rectangular shape, a counterweight is arranged on the side wall of the actuating plate, a fixing piece is arranged between the third connecting hole and the fixing groove, and the fixing piece adopts a bolt.

2. A periodic damping structure according to claim 1, wherein Two ends of the adjusting unit are provided with adjusting holes which are connected to the connecting structure, a fastener is sleeved on the support rod, the support rod is matched with the adjusting hole, and the support rod is connected to the lattice framework.

3. A mounting method of a vibration damping structure, characterized by, The mounting method of the damping structure comprises the following steps: connecting and fixing the lattice structures, connecting the lattice structures according to the periodic arrangement, connecting the vibrator units with the non-adjacent end points in the lattice structures, connecting a plurality of groups of vibrator units with a plurality of groups of lattice structures through the periodicity of at least one direction of the lattice structures, and adjusting the stiffness of the vibrator units according to the excitation of different frequencies.

4. A method of mounting a vibration damping structure according to claim 3, wherein The mounting method of the damping structure further comprises a connection method in which the vibrator units are parallel to at least one side wall of the lattice structure.

5. The mounting method of a damping structure according to claim 3, wherein The mounting method of the damping structure further comprises a connection method in which the vibrator units are not parallel to all side walls of the lattice structure.

6. The mounting method of a damping structure according to claim 3, wherein The mounting method of the damping structure further comprises a connection method in which at least two groups of vibrator units are arranged in the group of lattice structures.

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