CN113898697A - High damping tuned liquid vibration absorber with amplified mass - Google Patents

High damping tuned liquid vibration absorber with amplified mass Download PDF

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Publication number
CN113898697A
CN113898697A CN202111171513.5A CN202111171513A CN113898697A CN 113898697 A CN113898697 A CN 113898697A CN 202111171513 A CN202111171513 A CN 202111171513A CN 113898697 A CN113898697 A CN 113898697A
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liquid
tuning
liquid container
inner cavity
mass
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CN202111171513.5A
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CN113898697B (en
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胡岫岩
赵志鹏
翁大根
杨凯
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Shanghai Institute of Technology
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Shanghai Institute of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00Special physical effects, e.g. nature of damping effects
    • F16F2222/12Fluid damping
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

A high-damping tuned liquid vibration absorber with mass amplification belongs to the technical field of energy consumption and vibration reduction of civil engineering structures and aims to solve the problem of how to realize the effect of amplifying the liquid mass by means of the shaking force of tuned liquid, and comprises a tuned liquid container, wherein plugging blanking assemblies are embedded and installed in lower inner cavities at two ends of the tuned liquid container, an amplification mass assembly is arranged in an upper inner cavity of the tuned liquid container, the amplification mass assembly is fixedly installed on the top surface of the middle part of the inner cavity of the tuned liquid container, a liquid partition plate is arranged in the inner cavity of the middle part of the tuned liquid container, a cleaning assembly is arranged in a lower inner cavity of the tuned liquid container, and the cleaning assembly is fixedly installed on the bottom surface of the middle part of the inner cavity of the tuned liquid container. The method has the characteristics of light weight, high energy consumption and efficiency, strong robustness, broadband vibration reduction and the like, and has good popularization and application values.

Description

High damping tuned liquid vibration absorber with amplified mass
Technical Field
The invention relates to the technical field of civil engineering structure energy dissipation and vibration reduction, in particular to a high-damping tuned liquid vibration absorber with amplified mass.
Background
The Tuned Liquid Damper (TLD) is a dynamic vibration absorber tuned by liquid shaking, has a vibration control mechanism similar to that of a Tuned Mass Damper (TMD), and can adjust the vibration damping control effect of the vibration absorber by designing the mass and shaking frequency of the tuned liquid.
The frequency sensitivity of the traditional TLD tuned vibration absorber is limited, an effective vibration damping control effect is difficult to play under the detuning working condition or the action of wide-band excitation such as earthquake and the like, and the dynamic response level of the structure can be even further amplified. In addition, the vibration control effect of the traditional TLD type dynamic vibration absorber is closely related to the liquid shaking quality, and larger liquid quality and volume are often needed for achieving the control target, so that the application scene of the traditional TLD type dynamic vibration absorber is limited, and higher requirements are provided for installation construction and structural vibration reduction design. The design theory of the conventional dynamic vibration absorber shows that TLD liquid has low self damping ratio which is often smaller than the optimal design damping ratio, and the input energy is difficult to dissipate in time when the liquid shakes, so that the vibration energy is secondarily input into a vibration structure; the liquid is difficult to restore balance in time after shaking, so that the main structure may cause adverse effects and additional residual internal force is generated. And in the cavity that stores tuned liquid, do not clear up the inner wall for a long time, impurity wherein is more and more to also can increase holistic quality, and also do not have the power when reasonable utilization liquid rocks, inconvenient use.
In response to the above problems, an improvement is made to the existing apparatus to provide a high damping tuned liquid vibration absorber with an amplified mass.
Disclosure of Invention
The invention aims to provide a high-damping tuned liquid vibration absorber with amplified mass, which works by adopting the device, thereby solving the problems that the frequency sensitivity of the traditional TLD tuned vibration absorber is limited in the background, the effective vibration attenuation control effect is difficult to be exerted under the detuning working condition or the earthquake and other broadband excitation action, and the dynamic response level of the structure can be even further amplified. In addition, the vibration control effect of the traditional TLD type dynamic vibration absorber is closely related to the liquid shaking quality, and larger liquid quality and volume are often needed for achieving the control target, so that the application scene of the traditional TLD type dynamic vibration absorber is limited, and higher requirements are provided for installation construction and structural vibration reduction design. The design theory of the conventional dynamic vibration absorber shows that TLD liquid has low self damping ratio which is often smaller than the optimal design damping ratio, and the input energy is difficult to dissipate in time when the liquid shakes, so that the vibration energy is secondarily input into a vibration structure; the liquid is difficult to restore balance in time after shaking, so that the main structure may cause adverse effects and additional residual internal force is generated. And in the cavity that stores tuned liquid, do not clear up the inner wall for a long time, impurity wherein is more and more to also can increase holistic quality, and also do not have the power when reasonable utilization liquid rocks, inconvenient problem of using.
In order to achieve the purpose, the invention provides the following technical scheme: the high-damping tuned liquid vibration absorber with the amplified mass comprises a tuned liquid container, wherein a blocking blanking assembly is embedded and installed in lower side inner cavities at two ends of the tuned liquid container, an amplified mass assembly is arranged in an upper end inner cavity of the tuned liquid container and is fixedly installed on the top surface of the middle part of the inner cavity of the tuned liquid container, a liquid partition plate is arranged in the inner cavity of the middle part of the tuned liquid container, a cleaning assembly is arranged in an inner cavity at the lower end of the tuned liquid container and is fixedly installed on the bottom surface of the middle part of the inner cavity of the tuned liquid container, the tuned liquid container is divided into two chambers through the liquid partition plate, the upper end of the liquid partition plate is an upper chamber, and the lower end of the liquid partition plate is a lower chamber;
the plugging blanking assembly comprises a plugging long plate and a connecting block fixedly arranged on the top surface of the middle part of the plugging long plate, a threaded knob is movably arranged on the connecting block in a penetrating mode, a trapezoidal long block is fixedly arranged at the lower end of one side of the plugging long plate, and the threaded knob is arranged on the outer wall of the tuning liquid container through threads;
the mass amplifying assembly comprises piston cylinders and mass amplifying mechanisms, one ends of the mass amplifying mechanisms are communicated and mounted on the piston cylinders, a pair of piston cylinders are fixedly mounted on the top surface of the middle part of the inner cavity of the tuning liquid container respectively, and the mass amplifying mechanisms are mounted at the upper ends and the lower ends between the piston cylinders respectively;
the liquid partition plate comprises a partition plate main body and tuning springs, wherein one ends of the tuning springs are installed on the top surface of the partition plate main body, the tuning springs are respectively arranged on the top surfaces of the two ends of the partition plate main body, and the upper ends of the tuning springs are installed on the top surface of the inner cavity of the tuning liquid container;
the cleaning assembly comprises an air pressure driving mechanism and a storage box communicated through a communication pipeline, the air pressure driving mechanism is fixedly mounted on the inner walls of the inner cavities at the two ends of the lower end of the tuning liquid container respectively, the storage box is fixedly mounted on the bottom surface of the inner cavity at the middle part of the tuning liquid container, and the pushing cleaning assembly is movably mounted in the inner cavities at the two ends of the storage box respectively.
Furthermore, the lower chamber is filled with tuning liquid, one end of the upper end of the lower chamber is communicated with the feed inlet, two ends of the lower end of the lower chamber are communicated with the discharge hole, and the inner walls of two sides of the lower end of the lower chamber are respectively provided with a pair of arc-shaped slideways.
Furthermore, a connecting bearing is installed in the middle inner cavity of the connecting block, and the thread knob is movably installed on the connecting bearing.
Further, the piston cylinder comprises a piston cylinder shell and a top surface fixing block fixedly mounted on the top surface of the middle of the piston cylinder shell, the outer wall of the lower end of the piston cylinder shell is provided with a push rod in a penetrating and sealing and sliding mode, one end of the push rod is fixedly provided with a first sealing gasket, the first sealing gasket is mounted in the piston cylinder shell in a sealing and sliding mode, the other end of the push rod is movably provided with a first T-shaped sliding block, the first T-shaped sliding block is arranged on the bottom surface of the protruding piston cylinder shell, and high-damping liquid is filled in the piston cylinder shell.
Further, the mass amplifying mechanism comprises a pipeline and a hydraulic motor fixedly installed in the middle of the pipeline in a communicating mode, and a flywheel is installed at the output end of the hydraulic motor.
Furthermore, the installation shafts are fixedly installed on the outer walls of the middle portions of the two sides of the partition plate main body respectively, the partition plate main body is movably installed in the inner cavity of the middle portion of the tuning liquid container through the installation shafts, T-shaped sliding grooves are formed in the top face of the middle portion of the partition plate main body and the bottom faces of the two ends of the partition plate main body respectively, and the first T-shaped sliding blocks are arranged in the T-shaped sliding grooves in the top face of the partition plate main body in a sliding mode.
Further, atmospheric pressure actuating mechanism includes lateral wall fixed block and the gas receiver of fixed mounting on lateral wall fixed block one end outer wall, and runs through slidable mounting in the middle part of the upper end of gas receiver and have the promotion post, and the one end fixed mounting that promotes the post has the sealed pad of second, and the sealed slip setting of second is in the gas receiver, and the other end movable mounting that promotes the post has second T type slider, and second T type slider sets up in the T type spout that is arranged in baffle main part bottom surface.
Further, the receiver includes receiver main part and communicates a section of thick bamboo that pushes down of fixed mounting on receiver main part middle part top surface, and is provided with down the depression bar in pushing down the inner chamber of a section of thick bamboo, and the one end fixed mounting of pushing down the depression bar has the sealed pad of third, and the sealed slidable mounting of the sealed pad of third is in the inner chamber of pushing down a section of thick bamboo.
Further, promote the clearance subassembly and include rhombus telescopic link and set up the ejector pad on rhombus telescopic link output, the lower extreme activity riveting of rhombus telescopic link input is on the inner chamber inner wall of receiver main part, and the lower extreme movable mounting of depression bar is in the upper end of rhombus telescopic link input down.
Furthermore, a third T-shaped sliding block is installed at the output end of the rhombic telescopic rod, embedded balls are respectively arranged on the outer walls of the upper side and the lower side of the two ends of the material pushing block, a limiting T-shaped groove is formed in the outer wall of the lower end of the back face of the material pushing block, and the third T-shaped sliding block is arranged in the limiting T-shaped groove in a sliding mode.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the high-damping tuned liquid vibration absorber with the amplified mass, when a tuned liquid container shakes, two sections of the liquid partition plate can move up and down under the driving of tuned liquid, so that the first sealing gasket can be driven by the push rod to move up and down in the piston cylinder shell, the high-damping liquid in the piston cylinder shell is extruded at the same time, the hydraulic motor is started under the communication action of the pipeline, the output end of the hydraulic motor drives the flywheel to rotate and generate damping simultaneously, the kinetic energy of the reciprocating motion of the first sealing gasket is converted into heat energy to be dissipated, the effect of amplifying the mass of the liquid is achieved, the device is convenient and flexible to set, the vibration energy can be absorbed and dissipated effectively, and the high-damping tuned liquid vibration absorber with the amplified mass has the characteristics of light weight, high energy consumption efficiency, strong robustness, wide frequency vibration attenuation and the like, and has a good popularization and application value.
2. According to the high-damping tuned liquid vibration absorber with the amplified mass, the vibration absorber adjusts the liquid vibration frequency through the tuned spring, the quick self-resetting of the vibration liquid in the high-damping tuned liquid vibration absorber with the amplified mass is realized by means of the rigidity restoring force of the tuned spring, the inherent damping of the vibration liquid is equivalently improved, the mechanism provides a liquid mass amplification path by means of a flywheel of a hydraulic motor, the solid-liquid coupling composite mass efficiency improvement is realized, the equivalent mass of the tuned liquid participating in tuned vibration attenuation in the device is remarkably improved, and the liquid tuned vibration absorption capacity is enhanced.
3. The high-damping tuned liquid vibration absorber with the amplified mass provided by the invention absorbs and stores energy by utilizing the shaking of tuned liquid and the deformation of a tuned spring, absorbs and stores energy by utilizing the high-speed flow of the high-damping liquid in a hydraulic motor and the high-speed rotation of a flywheel, and effectively dissipates energy by utilizing the shearing motion of the high-damping liquid in a piston cylinder under the reciprocating action of a piston.
4. The high-damping tuned liquid vibration absorber with the amplified mass has the self-resetting function besides the tuned vibration absorption by the cooperative work of the mass amplifying assembly, the restoring force of the tuned spring is balanced with the static water pressure of the tuned liquid below the liquid partition plate when the tuned liquid is static, when the liquid shakes, the liquid partition plate fluctuates up and down, one side of the liquid partition plate is lifted while the other side of the liquid partition plate is lowered, so that one tuned spring is shortened and pressed, and the other tuned spring is stretched and pulled. The force of the spring on the liquid partition board generates moment on the center of the liquid partition board to force the liquid partition board to restore the balance position, and the inherent liquid shaking frequency of the tuning liquid and the tuning frequency of the tuning spring widen the effective vibration reduction frequency band of the device, thereby improving the applicability and the effectiveness of the device under the excitation action of the broadband.
5. The high-damping tuned liquid vibration absorber with the amplified mass can simultaneously drive the pushing columns on the bottom surfaces of the two ends of the liquid partition plate to reciprocate up and down when the two sections of the liquid partition plate can move up and down under the driving of tuned liquid, the pushing columns can extrude gas in the gas storage cylinder through the second sealing gasket and press the gas into the lower pressing cylinder through the communicating pipeline, the pressure in the lower pressing cylinder is increased, so that the third sealing gasket can be pressed downwards, the third sealing gasket extrudes the input end of the diamond-shaped telescopic rod through the lower pressing rod, the diamond-shaped telescopic rod integrally extends, the diamond-shaped telescopic rod pushes the pushing block to move forwards, impurities on the bottom surface of the inner cavity of the tuned liquid container can be pushed onto the trapezoidal long block, the automatic cleaning effect is realized, and the device can shake under the power of the liquid, realize multiple effects, facilitate the use.
6. According to the high-damping tuned liquid vibration absorber with the amplified mass, when an operator needs to clean impurities pushed onto the trapezoidal long block, the threaded knob can be screwed, the plugging long plate can be taken out from the blanking hole, and cleaning work can be performed, so that the operation is convenient and fast, and the use is convenient.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a cross-sectional view of a tuning liquid container of the present invention;
FIG. 3 is an enlarged cross-sectional view of the mass assembly of the present invention;
FIG. 4 is a schematic perspective view of the main body of the separator of the present invention;
FIG. 5 is a cross-sectional view of a cleaning assembly of the present invention;
FIG. 6 is a cross-sectional view of a storage case of the present invention;
FIG. 7 is a schematic plan view of the push cleaning assembly of the present invention;
FIG. 8 is a cross-sectional view of the pneumatic actuator of the present invention;
fig. 9 is a schematic perspective view of the plugging blanking assembly of the present invention.
In the figure: 1. a tuning liquid container; 11. an upper chamber; 12. a lower chamber; 121. a feed inlet; 122. a blanking hole; 123. an arc-shaped slideway; 2. blocking the blanking assembly; 21. plugging the long plate; 22. connecting blocks; 221. connecting a bearing; 23. a threaded knob; 24. a trapezoidal long block; 3. an amplifying mass assembly; 31. a piston cylinder; 311. a piston cylinder housing; 312. a top surface fixing block; 313. a push rod; 314. a first gasket; 315. a first T-shaped slider; 32. a mass magnifying mechanism; 321. a pipeline; 322. a hydraulic motor; 323. a flywheel; 4. a liquid separator; 41. a separator body; 411. installing a shaft; 412. a T-shaped chute; 42. a tuning spring; 5. cleaning the assembly; 51. an air pressure driving mechanism; 511. a side wall fixing block; 512. an air cylinder; 513. pushing the column; 514. a second gasket; 515. a second T-shaped slider; 52. a storage box; 521. a storage box main body; 522. pressing the cylinder; 523. a lower pressure lever; 524. a third gasket; 53. a communicating pipe; 54. pushing the cleaning assembly; 541. a diamond-shaped telescopic rod; 5411. a third T-shaped slider; 542. a material pushing block; 5421. embedding a ball; 5422. and limiting the T-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the technical problem of how to realize the effect of amplifying the liquid quality by means of tuning the shaking force of the liquid, as shown in fig. 1-4, the following preferred technical solutions are provided:
a high-damping tuned liquid vibration absorber with amplified mass comprises a tuned liquid container 1, wherein a blocking blanking component 2 is embedded and installed in lower side inner cavities at two ends of the tuned liquid container 1, an amplified mass component 3 is arranged in an upper end inner cavity of the tuned liquid container 1, the amplified mass component 3 is fixedly installed on the top surface of the middle part of the inner cavity of the tuned liquid container 1, a liquid partition plate 4 is arranged in the inner cavity of the middle part of the tuned liquid container 1, a cleaning component 5 is arranged in a lower end inner cavity of the tuned liquid container 1, the cleaning component 5 is fixedly installed on the bottom surface of the middle part of the inner cavity of the tuned liquid container 1, the tuned liquid container 1 is divided into two chambers through the liquid partition plate 4, the upper end of the liquid partition plate 4 is an upper chamber 11, the lower end of the liquid partition plate 4 is a lower chamber 12, the blocking blanking component 2 comprises a blocking long plate 21 and a connecting block 22 fixedly installed on the top surface of the middle part of the blocking long plate 21, and the connecting block 22 is movably provided with a threaded knob 23 in a penetrating manner, the lower end of one side of the plugging long plate 21 is fixedly provided with a trapezoidal long block 24, the threaded knob 23 is installed on the outer wall of the tuning liquid container 1 through threads, the amplification mass component 3 comprises a piston cylinder 31 and an amplification mass mechanism 32 with one end communicated and installed on the piston cylinder 31, the middle top surface of the inner cavity of the tuning liquid container 1 is fixedly provided with a pair of piston cylinders 31 respectively, the upper end and the lower end between the piston cylinders 31 are respectively provided with the amplification mass mechanism 32, the liquid partition plate 4 comprises a partition plate main body 41 and a tuning spring 42 with one end installed on the top surface of the partition plate main body 41, the top surfaces of the two ends of the partition plate main body 41 are respectively provided with tuning springs 42, and the upper end of each tuning spring 42 is installed on the top surface of the inner cavity of the tuning liquid container 1.
The tuning liquid is filled in the lower chamber 12, one end of the upper end of the lower chamber 12 is provided with a feed inlet 121 in a communicating way, two ends of the lower end of the lower chamber 12 are provided with a discharge hole 122 in a communicating way, two side inner walls of the lower end of the lower chamber 12 are respectively provided with a pair of arc-shaped slideways 123, the tuning liquid container 1 and the tuning liquid can directly utilize the existing fire-fighting or water supply system in a building, such as a water supply tank on a roof and the like, and the device is suitable for the shape and the size of the tuning liquid container 1, the quality and the water level of the tuning liquid in the container and can generate a vibration absorption effect.
The connecting bearing 221 is installed in the middle inner cavity of the connecting block 22, and the threaded knob 23 is movably installed on the connecting bearing 221.
The piston cylinder 31 comprises a piston cylinder shell 311 and a top surface fixing block 312 fixedly installed on the top surface of the middle part of the piston cylinder shell 311, a push rod 313 penetrates through the outer wall of the lower end of the piston cylinder shell 311 in a sealing and sliding mode, a first sealing gasket 314 is fixedly installed at one end of the push rod 313, the first sealing gasket 314 is installed in the piston cylinder shell 311 in a sealing and sliding mode, a first T-shaped sliding block 315 is movably installed at the other end of the push rod 313, the first T-shaped sliding block 315 protrudes out of the bottom surface of the piston cylinder shell 311, the piston cylinder shell 311 is filled with high-damping liquid, the amplification mass mechanism 32 comprises a pipeline 321 and a hydraulic motor 322 fixedly installed in the middle part of the pipeline 321 in a communicating mode, a flywheel 323 is installed at the output end of the hydraulic motor 322, and the size and the mass of the flywheel 323 can be set according to vibration control requirements.
The installation shafts 411 are respectively and fixedly installed on the outer walls of the middle parts of the two sides of the partition plate main body 41, the partition plate main body 41 is movably installed in the inner cavity of the middle part of the tuning liquid container 1 through the installation shafts 411, the top surface and the bottom surfaces of the two ends of the middle part of the partition plate main body 41 are respectively provided with a T-shaped sliding groove 412, and the first T-shaped sliding block 315 is arranged in the T-shaped sliding groove 412 on the top surface of the partition plate main body 41 in a sliding mode.
Specifically, when the tuning liquid container 1 rocks, the liquid partition plate 4 can be driven by tuning liquid, and two sections of the liquid partition plate can move up and down, so that the first sealing gasket 314 can be driven by the push rod 313 to move up and down in the piston cylinder shell 311, and high-damping liquid in the piston cylinder shell 311 can be extruded at the same time, under the communication action of the pipeline 321, the hydraulic motor 322 is started, the output end of the hydraulic motor 322 drives the flywheel 323 to rotate, and meanwhile damping is generated, so that the kinetic energy of the reciprocating motion of the first sealing gasket 314 is converted into heat energy to be dissipated, the effect of amplifying the liquid quality is realized, the device is convenient and flexible to set, and can effectively absorb and dissipate the vibration energy, and the device has the characteristics of light weight, high energy consumption efficiency, strong robustness, broadband vibration reduction and the like, and has a good popularization and application value.
Furthermore, the vibration absorber adjusts the liquid shaking frequency through the tuning spring 42, realizes the quick self-resetting of the shaking liquid in the high-damping tuned liquid vibration absorber with amplified mass by the aid of the stiffness restoring force of the tuning spring 42, equivalently improves the inherent damping of the shaking liquid, provides an amplification path of the liquid mass by the aid of the flywheel 323 of the hydraulic motor 322, realizes the synergy of solid-liquid coupled composite mass, obviously improves the equivalent mass of the tuning liquid participating in the tuned vibration attenuation in the device, enhances the liquid tuned vibration absorbing capacity, absorbs and stores energy by the shaking of the tuning liquid and the deformation of the tuning spring 42, absorbs and stores energy by the high-speed flow of the high-damping liquid in the hydraulic motor 322 and the high-speed rotation of the flywheel 323, and effectively dissipates energy by the shearing motion of the high-damping liquid in the piston cylinder 31 under the reciprocating action of the piston, the liquid baffle plate has the advantages that the liquid baffle plate has the self-resetting function besides the tuning vibration absorption by the cooperative work of the mass amplification component 3, the restoring force of the tuning spring 42 is balanced with the static water pressure of tuning liquid below the liquid baffle plate 4 when the liquid baffle plate is static, when the liquid is shaken, the liquid baffle plate 4 is fluctuated up and down, one side is lifted up, the other side is lowered, one tuning spring 42 is shortened and pressed, and the other tuning spring is stretched and pulled. The spring force on the liquid partition plate 4 generates moment on the center of the liquid partition plate 4 to force the liquid partition plate 4 to restore the balance position, and the inherent liquid shaking frequency of the tuning liquid and the tuning frequency of the tuning spring 42 widen the effective vibration reduction frequency band of the invention, thereby improving the applicability and the effectiveness of the device under the excitation action of the broadband.
In order to solve the technical problem of how to clean the bottom surface of the inner cavity of the tuning liquid container 1 by means of the shaking force of the tuning liquid, as shown in fig. 5-9, the following preferred technical solutions are provided:
cleaning assembly 5 includes atmospheric pressure drive mechanism 51 and receiver 52 that is linked together through communicating pipe 53, and fixed mounting has atmospheric pressure drive mechanism 51 respectively on the both ends inner chamber inner wall of harmonious liquid container 1 lower extreme, and fixed mounting has receiver 52 on the inner chamber bottom surface at harmonious liquid container 1 middle part, and has the promotion cleaning assembly 54 in the both ends inner chamber of receiver 52 respectively movable mounting.
The air pressure driving mechanism 51 comprises a side wall fixing block 511 and an air storage cylinder 512 fixedly mounted on the outer wall of one end of the side wall fixing block 511, the middle of the upper end of the air storage cylinder 512 is penetrated by a sliding mounting push column 513, a second sealing gasket 514 is fixedly mounted at one end of the push column 513, the second sealing gasket 514 is arranged in the air storage cylinder 512 in a sealing and sliding mode, a second T-shaped sliding block 515 is movably mounted at the other end of the push column 513, and the second T-shaped sliding block 515 is arranged in a T-shaped sliding groove 412 located in the bottom face of the partition plate main body 41.
The storage box 52 comprises a storage box main body 521 and a lower pressing barrel 522 fixedly installed on the top surface of the middle part of the storage box main body 521 in a communicating mode, a lower pressing rod 523 is arranged in an inner cavity of the lower pressing barrel 522, a third sealing gasket 524 is fixedly installed at one end of the lower pressing rod 523, and the third sealing gasket 524 is installed in the inner cavity of the lower pressing barrel 522 in a sealing and sliding mode.
Promote clearance subassembly 54 and include rhombus telescopic link 541 and the pushing shoe 542 of setting on rhombus telescopic link 541 output, the lower extreme activity riveting of rhombus telescopic link 541 input is on the inner chamber inner wall of receiver main part 521, the lower extreme movable mounting of push rod 523 is in the upper end of rhombus telescopic link 541 input, third T type slider 5411 is installed to rhombus telescopic link 541's output, be provided with embedding ball 5421 on the upper and lower both sides outer wall at pushing shoe 542 both ends respectively, be provided with restriction T type groove 5422 on the lower extreme outer wall at the pushing shoe 542 back, and third T type slider 5411 slides and sets up in restriction T type groove 5422.
Specifically, when the liquid partition plate 4 is driven by the tuning liquid and two sections of liquid partition plates move up and down, the pushing posts 513 on the bottom surfaces of the two ends of the liquid partition plate 4 can be driven to reciprocate up and down, at this time, the pushing posts 513 can extrude the gas in the gas storage cylinder 512 through the second sealing gaskets 514 and press the gas into the lower pressing cylinder 522 through the communication pipeline 53, at this time, the pressure in the lower pressing cylinder 522 is increased, so that the third sealing gaskets 524 can be pressed downwards, the third sealing gaskets 524 can extrude the input end of the diamond-shaped telescopic rod 541 through the lower pressing rods 523, so that the diamond-shaped telescopic rod 541 is integrally extended, the diamond-shaped telescopic rod 541 pushes the pushing block 542 to move forwards, so that impurities on the bottom surface of the inner cavity of the tuning liquid container 1 can be pushed onto the trapezoidal long block 24, thereby realizing the effect of automatic cleaning, and the device can be driven by the shaking liquid, realize multiple effects, facilitate the use.
Further, when the operator need will push away the impurity on the trapezoidal long piece 24 and clear up, then can twist screw thread knob 23 soon, can take out shutoff long slab 21 from unloading hole 122, can clear up the work, operate convenient and fast, convenient to use.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. High damping tuned liquid absorber with amplifying mass comprising a tuned liquid container (1), characterized in that: the liquid tuning device is characterized in that a blocking blanking assembly (2) is embedded into lower side inner cavities at two ends of the tuning liquid container (1), an amplifying mass assembly (3) is arranged in an upper end inner cavity of the tuning liquid container (1), the amplifying mass assembly (3) is fixedly installed on the top surface of the middle part of the inner cavity of the tuning liquid container (1), a liquid partition plate (4) is arranged in the inner cavity of the middle part of the tuning liquid container (1), a cleaning assembly (5) is arranged in the inner cavity of the lower end of the tuning liquid container (1), the cleaning assembly (5) is fixedly installed on the bottom surface of the middle part of the inner cavity of the tuning liquid container (1), the tuning liquid container (1) is divided into two chambers through the liquid partition plate (4), the upper end of the liquid partition plate (4) is an upper chamber (11), and the lower end of the liquid partition plate (4) is a lower chamber (12);
the blocking and blanking assembly (2) comprises a blocking long plate (21) and a connecting block (22) fixedly installed on the top surface of the middle part of the blocking long plate (21), a threaded knob (23) penetrates through the connecting block (22) and is movably installed, a trapezoidal long block (24) is fixedly installed at the lower end of one side of the blocking long plate (21), and the threaded knob (23) is installed on the outer wall of the tuning liquid container (1) through threads;
the amplification mass component (3) comprises a piston cylinder (31) and an amplification mass mechanism (32) with one end communicated and installed on the piston cylinder (31), a pair of piston cylinders (31) are respectively and fixedly installed on the top surface of the middle part of the inner cavity of the tuning liquid container (1), and the amplification mass mechanism (32) is respectively installed at the upper end and the lower end between the piston cylinders (31);
the liquid partition plate (4) comprises a partition plate main body (41) and tuning springs (42) with one ends installed on the top surface of the partition plate main body (41), the tuning springs (42) are respectively arranged on the top surfaces of the two ends of the partition plate main body (41), and the upper ends of the tuning springs (42) are installed on the top surface of the inner cavity of the tuning liquid container (1);
clearance subassembly (5) are including atmospheric pressure drive mechanism (51) and receiver (52) that are linked together through communicating pipe (53), and fixed mounting has atmospheric pressure drive mechanism (51) respectively on the both ends inner chamber inner wall of harmonious liquid container (1) lower extreme, and fixed mounting has receiver (52) on the inner chamber bottom surface at harmonious liquid container (1) middle part, and in the both ends inner chamber of receiver (52) respectively movable mounting have promote clearance subassembly (54).
2. The high damping tuned liquid absorber with amplified mass according to claim 1, wherein: the lower cavity (12) is filled with tuning liquid, one end of the upper end of the lower cavity (12) is communicated with the feed inlet (121), two ends of the lower end of the lower cavity (12) are communicated with the feed outlet (122), and the inner walls of two sides of the lower end of the lower cavity (12) are respectively provided with a pair of arc-shaped slideways (123).
3. The high damping tuned liquid vibration absorber with enlarged mass according to claim 2, wherein: the middle inner cavity of the connecting block (22) is provided with a connecting bearing (221), and the thread knob (23) is movably arranged on the connecting bearing (221).
4. The high damping tuned liquid absorber with amplified mass according to claim 3, wherein: piston cylinder (31) includes piston cylinder shell (311) and fixed mounting top surface fixed block (312) on piston cylinder shell (311) middle part top surface, the lower extreme outer wall of piston cylinder shell (311) runs through sealed slidable mounting and has push rod (313), the one end fixed mounting of push rod (313) has first sealed pad (314), and sealed slidable mounting of first sealed pad (314) is in piston cylinder shell (311), the other end movable mounting of push rod (313) has first T type slider (315), and first T type slider (315) are the bottom surface setting of protrusion piston cylinder shell (311), and be full of high damping liquid in piston cylinder shell (311).
5. The high damping tuned liquid absorber with amplified mass according to claim 4, wherein: the mass amplifying mechanism (32) comprises a pipeline (321) and a hydraulic motor (322) fixedly installed in the middle of the pipeline (321) in a communicating mode, and a flywheel (323) is installed on the output end of the hydraulic motor (322).
6. The high damping tuned liquid absorber with amplified mass according to claim 5, wherein: the installation shafts (411) are fixedly installed on the outer walls of the middle portions of the two sides of the partition main body (41) respectively, the partition main body (41) is movably installed in the inner cavity of the middle portion of the tuning liquid container (1) through the installation shafts (411), T-shaped sliding grooves (412) are formed in the top face of the middle portion of the partition main body (41) and the bottom faces of the two ends of the middle portion of the partition main body (41), and the first T-shaped sliding block (315) is arranged in the T-shaped sliding grooves (412) on the top face of the partition main body (41) in a sliding mode.
7. The high damping tuned liquid absorber with amplified mass according to claim 6, wherein: air pressure drive mechanism (51) includes lateral wall fixed block (511) and air receiver (512) of fixed mounting on lateral wall fixed block (511) one end outer wall, and the upper end middle part of air receiver (512) runs through slidable mounting and has promotion post (513), and the one end fixed mounting who promotes post (513) has the sealed pad of second (514), and the sealed slip setting of the sealed pad of second (514) is in air receiver (512), the other end movable mounting who promotes post (513) has second T type slider (515), and second T type slider (515) set up in T type spout (412) that are located baffle main part (41) bottom surface.
8. The high damping tuned liquid absorber with amplified mass according to claim 7, wherein: the storage box (52) comprises a storage box main body (521) and a lower pressing barrel (522) which is communicated and fixedly installed on the top surface of the middle part of the storage box main body (521), a lower pressing rod (523) is arranged in the inner cavity of the lower pressing barrel (522), a third sealing gasket (524) is fixedly installed at one end of the lower pressing rod (523), and the third sealing gasket (524) is installed in the inner cavity of the lower pressing barrel (522) in a sealing and sliding mode.
9. The high damping tuned liquid absorber with amplified mass according to claim 8, wherein: the pushing and cleaning assembly (54) comprises a rhombic telescopic rod (541) and a material pushing block (542) arranged at the output end of the rhombic telescopic rod (541), the lower end of the input end of the rhombic telescopic rod (541) is movably riveted on the inner wall of an inner cavity of the storage box main body (521), and the lower end of the lower pressing rod (523) is movably installed at the upper end of the input end of the rhombic telescopic rod (541).
10. The high damping tuned liquid absorber with amplified mass according to claim 9, wherein: the output end of the rhombic telescopic rod (541) is provided with a third T-shaped sliding block (5411), the outer walls of the upper side and the lower side of the two ends of the material pushing block (542) are respectively provided with an embedded ball (5421), the outer wall of the lower end of the back surface of the material pushing block (542) is provided with a limiting T-shaped groove (5422), and the third T-shaped sliding block (5411) is slidably arranged in the limiting T-shaped groove (5422).
CN202111171513.5A 2021-10-08 2021-10-08 High damping tuned liquid vibration absorber with amplified mass Active CN113898697B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6369573B1 (en) * 1997-09-03 2002-04-09 The Broken Hill Proprietary Company Limited Apparatus for reducing rotation of a towed airborne article
CN102296720A (en) * 2011-06-04 2011-12-28 李敬宇 Active flexible vibration-damping and shock-absorbing device for building
CN103307196A (en) * 2013-06-19 2013-09-18 同济大学 Novel tuned mass damper with independent bi-direction rigidity
CN108655118A (en) * 2018-05-10 2018-10-16 韩孟超 A kind of hydraulic engineering construction equipment
EP3392523A1 (en) * 2017-04-20 2018-10-24 Safran Landing Systems UK Limited Aircraft landing gear shock absorbing strut

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6369573B1 (en) * 1997-09-03 2002-04-09 The Broken Hill Proprietary Company Limited Apparatus for reducing rotation of a towed airborne article
CN102296720A (en) * 2011-06-04 2011-12-28 李敬宇 Active flexible vibration-damping and shock-absorbing device for building
CN103307196A (en) * 2013-06-19 2013-09-18 同济大学 Novel tuned mass damper with independent bi-direction rigidity
EP3392523A1 (en) * 2017-04-20 2018-10-24 Safran Landing Systems UK Limited Aircraft landing gear shock absorbing strut
CN108655118A (en) * 2018-05-10 2018-10-16 韩孟超 A kind of hydraulic engineering construction equipment

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