CN109653080B - Liquid mass double-tuned shock absorber and assembling method thereof - Google Patents
Liquid mass double-tuned shock absorber and assembling method thereof Download PDFInfo
- Publication number
- CN109653080B CN109653080B CN201811477280.XA CN201811477280A CN109653080B CN 109653080 B CN109653080 B CN 109653080B CN 201811477280 A CN201811477280 A CN 201811477280A CN 109653080 B CN109653080 B CN 109653080B
- Authority
- CN
- China
- Prior art keywords
- ball screw
- flywheel
- upper cover
- cover plate
- thrust bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 33
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 8
- 230000035939 shock Effects 0.000 title description 11
- 238000013016 damping Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 7
- 230000007547 defect Effects 0.000 abstract description 2
- 239000002905 metal composite material Substances 0.000 abstract 3
- 238000005096 rolling process Methods 0.000 abstract 3
- 230000008093 supporting effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a liquid mass double-tuned absorber, which comprises a base, a top cover, a rubber metal composite part and a ball screw inerter component, wherein the ball screw inerter component comprises a ball screw rod and a ball screw rod; the inerter assembly comprises a screw bolt, one end of the screw bolt penetrates through a center hole of the top cover to extend upwards, the other end of the screw bolt is arranged in a step hole of the base, a ball screw part of the screw bolt is provided with a screw nut through balls, a rotary flywheel and a rolling bearing are sleeved outside the screw nut, an inner ring of the rolling bearing is positioned with a convex shoulder of the rotary flywheel through a convex shoulder of the screw nut, and an outer ring of the rolling bearing is arranged in the step hole of the base. The ball screw inerter assembly is designed in the rubber-metal composite part and forms a parallel supporting effect with the rubber-metal composite part, the structure is compact, the ball screw inerter assembly has excellent vibration damping performance on low-frequency vibration, and the defect that the rubber vibration damper is poor in low-frequency vibration damping performance is overcome.
Description
Technical Field
The invention relates to a liquid mass double-tuned absorber and an assembly method thereof, in particular to a liquid mass double-tuned absorber with a ball screw type inerter assembly and an assembly method thereof, and belongs to the technical field of vibration reduction.
Background
Along with the continuous construction of modern cities, buildings increasingly tend to high-rise and super high-rise development, bridges are increasingly large in span in order to meet the requirements of production and life, civil engineering structures are increasingly developed in the directions of being high, large, light and flexible, particularly suspension bridges are widely constructed, and the span records of the bridges are continuously refreshed. Although these developments provide convenience for people's production and life, the structural vibration frequency of high-rise buildings and long-span bridges is low, the damping is small, the structural response under external excitation such as earthquake, strong wind or vehicles is very large, resonance easily occurs, and control is necessary, otherwise, driving and pedestrian discomfort is caused, pedestrian panic is caused, and structural fatigue damage and even dynamic instability are caused due to excessive response, so that bridge damage is generated, and the use function is affected. Therefore, the problem of destructive resonance of such thin and high buildings and large-span low-frequency structures is considered in modern engineering construction.
A liquid mass double tuned absorber is an effective vibration control device that adjusts its natural frequency to near the natural frequency of the structure and then mounts it to the structure. When the structure is disturbed by an exciting force to vibrate, the vibration of the vibration absorber is caused, the vibration inertia force of the tuned mass is utilized to counteract the exciting force, and meanwhile, the mass block of the vibration absorber pushes the damping fluid to move when moving, so that the amplitude of the damping fluid is larger, and the energy of a main vibration system is favorably absorbed and dissipated to achieve the purpose of reducing the structural reaction.
The invention patent with the patent number of CN200410087664.2 and the name of directional vertical adjustable tuned mass damper discloses a directional vertical adjustable tuned mass damper, which is a vibration system consisting of a mass block formed by overlapping a spring, a damper and a plurality of single steel plates, when the mass block is installed on a structure, the natural frequency of the mass block is adjusted to be close to the natural vibration frequency of the structure, the structure vibrates to cause the resonance, and the vibration inertia force of the tuned mass damper reacts on the structure to achieve the purpose of reducing the structural reaction. According to the invention, single steel plates are superposed together to form the mass block, the mass block is connected by adopting the bolts, the mass can be flexibly adjusted, and when the frequency of the mass damper needs to be tuned, the tuning can be realized only by changing the thickness of the steel plates. However, the tuned mass damper only utilizes the vibration inertia force of the self mass block to counteract the excitation force, and if a large excitation force needs to be counteracted, the self mass block needs to have a large mass, so that the manufacturing cost of the damper is increased, and a plurality of problems are also increased for field mounting, fixing and dismounting work; in addition, the vibration suppression band of the vibration damper is narrow, and the sensitivity to frequency tuning is high; meanwhile, the shock absorber can only reduce the reaction of the structure in one direction, and in practice, large vibration can be generated in both vertical and horizontal directions of the structure such as a large-span bridge, so that the shock absorber is not economical enough and cannot completely solve the practical problem, and the engineering application value is limited to a certain extent.
Disclosure of Invention
The present invention aims to overcome the technical problems and defects of the prior art and provide a liquid mass double-tuned shock absorber.
In order to achieve the aim, the technical scheme adopted by the invention for achieving the aim is as follows: the utility model provides a liquid mass double-tuned shock absorber, includes upper cover plate and lower casing, the upper cover plate is installed on the casing down, the upper cover plate with form seal chamber between the casing down, be equipped with in the seal chamber and be used to hold subassembly and damping fluid, it is including connecting to be used to hold the subassembly the upper cover plate with the ball of casing down, install the flywheel on the ball, the flywheel with form the ball nut pair between the ball, one side of flywheel is equipped with first thrust bearing, and the opposite side is equipped with second thrust bearing, first thrust bearing with be equipped with first spring between the upper cover plate, second thrust bearing with be equipped with the second spring between the bottom plate of casing down.
Furthermore, the capacity of the damping fluid is 70% -85% of the volume of the sealed cavity, a filling opening is formed in the upper cover plate and is sealed through a plug screw, and a sealing ring is arranged between the plug screw and the upper cover plate.
Further, the peripheral surface of the flywheel is provided with an external flywheel baffle.
Furthermore, bosses are arranged in the middle of the inner side of the upper cover plate and in the middle of the inner side of the bottom plate of the lower shell, and the ball screw is arranged between the two bosses and fixed through screws on two end faces.
Furthermore, an internal circulation phase inverter and a plurality of balls are arranged between the ball screw and the flywheel, and the balls realize circulation through the internal circulation phase inverter.
Further, the surfaces of the ball screw and the flywheel are plated with wear-resistant and corrosion-resistant protective layers, the balls can be high-strength metal balls, and the material of the balls is preferably 30Cr or zirconium.
Further, the ball bearing can also be a wear-resistant non-metal ball, and the material of the ball bearing is preferably ceramic or carbon fiber reinforced resin matrix composite material.
The invention also provides an assembly method of the liquid mass double-tuned vibration absorber, which comprises the following steps:
firstly, mounting the ball screw on a bottom plate of the lower shell;
secondly, sleeving the second spring outside the ball screw, wherein one end of the second spring is in contact with a bottom plate of the lower shell;
thirdly, the first thrust bearing and the second thrust bearing are respectively arranged on two sides of the flywheel, the flywheel and the ball screw form a ball screw nut pair through the balls, and the flywheel is rotated to enable one side of the second thrust bearing to be in contact with the second spring;
fourthly, sleeving the first spring on the outer side of the ball screw, wherein one end of the first spring is in contact with the first thrust bearing;
fifthly, mounting the upper cover plate on the lower shell, and fixedly connecting the ball screw with the upper cover plate;
and sixthly, filling the damping liquid.
Principle of operation
The liquid mass double-tuned vibration absorber is arranged on the main structure, when the main structure vibrates, the resonance of the vibration absorber can drive the flywheel to rotate up and down, and the rotational kinetic energy stored by the flywheel
Is related to the moment of inertia J and the rotational angular velocity ω of the flywheel, is proportional to the moment of inertia thereof, and is proportional to the square of the rotational angular velocity. And the rotational angular velocity of the flywheel
The pitch p of the ball screw and the relative up-and-down movement speed of the flywheel
It is related. The larger the structural vibration frequency is, the higher the rotational angular velocity of the flywheel is, and the more rotational kinetic energy the flywheel stores. The capacity of the flywheel for storing the rotational energy can be adjusted by changing the rotational inertia of the flywheel and the screw pitch of the ball screw, and the mass of the flywheel is certainIn order to increase the storage capacity, the moment of inertia should be increased as much as possible. For the flywheel rotating at high speed, the rotating kinetic energy is hundreds of times of the up-and-down translation of the flywheel, so that the energy generated by structural vibration, particularly low-frequency vibration, is greatly absorbed by using the flywheel with smaller mass. Therefore, the inertia assembly plays a role in mass amplification to a certain extent, and a rotary flywheel with the mass of several kilograms can achieve the effect of equivalent mass of several hundred kilograms or even several tons, so that energy generated by structural vibration, particularly energy generated by low-frequency vibration, can be effectively absorbed. Meanwhile, the structural vibration drives the damping liquid to shake to generate hydrodynamic pressure (equivalent to damping force) in the direction opposite to the structural motion, so that the vibration of the main structure is reduced. When the flywheel moves, the flywheel main body and the flywheel external baffle push the damping fluid to move, and the flywheel external baffle arranged on the circumferential surface of the flywheel enables the amplitude of the damping fluid to be larger, so that the energy of a main vibration system is absorbed and dissipated. By utilizing the coupling effect of the fluid and the solid, the parameter adjustment of the shock absorber is more convenient, and the shock absorption effect is better.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. the ball screw inertial volume assembly is used as a control structure of the shock absorber, has good inertia under large displacement, and better buffers the shock absorber swing so that the structure is more stable;
2. compared with the traditional liquid mass double-tuned absorber, the flywheel external baffle is arranged on the outer circumferential surface of the flywheel, and when the flywheel moves, the damping liquid is pushed by the flywheel main body and the baffle to move so as to increase the damping, so that the amplitude of the damping liquid is larger, and the energy of a main vibration system can be absorbed and dissipated more favorably;
3. the ball screw inertial container assembly works in damping liquid, the damping liquid provides stable and conveniently-adjusted damping and an anti-corrosion environment for the shock absorber, and dry friction among the ball screws is avoided, so that the service life is prolonged;
4. compared with a tuned mass damper, the mass and the volume of a large number of mass blocks are reduced, the mounting space and the structural load of the damper are compressed, the damper is lighter in weight, and the manufacturing cost is greatly reduced on the premise of improving the stability, so that the damper is economical and energy-saving, and has higher vibration suppression efficiency and higher parameter stability, thereby having higher engineering application value.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a top view of an upper cover plate in an embodiment of the present invention;
FIG. 3 is an enlarged view of a ball screw nut set in an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a flywheel in an embodiment of the invention;
in the figure: the device comprises a bolt 1, an upper cover plate 2, a damping liquid 3, a screw 4, a first spring 5, a first thrust bearing 6, a filling hole 7, a plug screw 8, a sealing gasket 9, a flywheel 10, a second thrust bearing 11, a ball screw 12, a second spring 13, a ball 14, a lower shell 15, an external flywheel baffle 16, a mounting and fixing hole 17, an internal circulation phase inverter 18, a sealing cavity 19 and an inertial container assembly 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, a liquid mass double-tuned vibration absorber includes an upper cover plate 2 and a lower housing 15, the upper cover plate 2 is mounted on the lower housing 15 through a bolt 1, a sealing gasket 9 is disposed between the upper cover plate 2 and the lower housing 15, a sealing cavity 19 is formed between the upper cover plate 2 and the lower housing 15, an inertial volume component 20 and damping liquid 3 are mounted in the sealing cavity 19, the inertial volume component 20 includes a ball screw 12 connecting the upper cover plate 2 and the lower housing 15, a flywheel 10 is mounted on the ball screw 12, a ball screw nut pair is formed between the flywheel 10 and the ball screw 12, a first thrust bearing 6 is disposed on one side of the flywheel 10, a second thrust bearing 11 is disposed on the other side of the flywheel 10, a first spring 5 is disposed between the first thrust bearing 6 and the upper cover plate 2, a second spring 13 is disposed between the second thrust bearing 11 and a bottom plate of the lower housing 15, and a bottom plate of the lower shell 15 is provided with a mounting and fixing hole 17.
The volume of the damping liquid 3 is 70-85% of the volume of the sealed cavity 19, the upper cover plate 2 is provided with a filling port 7, the filling port 7 is sealed by a plug screw 8, and a sealing ring is arranged between the plug screw 8 and the upper cover plate 2.
The peripheral surface of the flywheel 10 is provided with a flywheel external baffle 16.
Bosses are arranged in the middle of the inner side of the upper cover plate 2 and in the middle of the inner side of the bottom plate of the lower shell 15, and the ball screw 12 is arranged between the bosses and fixed through screws 4 on two end faces.
As shown in fig. 3, an internal circulation phase inverter 18 and a plurality of balls 14 are disposed between the ball screw 12 and the flywheel 10, and the balls 14 circulate through the internal circulation phase inverter 18.
The surfaces of the ball screw 12 and the flywheel 10 are plated with wear-resistant and corrosion-resistant protective layers, and the balls 14 are high-strength metal balls made of 30 Cr.
Assembly method
The assembling method of the liquid mass double-tuned absorber comprises the following steps:
firstly, mounting the ball screw 12 on a bottom plate of the lower shell 15;
secondly, sleeving the second spring 13 outside the ball screw 12, wherein one end of the second spring 13 is in contact with a bottom plate of the lower shell 15;
thirdly, respectively installing the first thrust bearing 6 and the second thrust bearing 11 on two sides of the flywheel 10, forming a ball screw nut pair by the flywheel 10 and the ball screw 12 through the balls 14, and rotating the flywheel 10 to enable one side of the second thrust bearing 11 to be in contact with the second spring 13;
fourthly, sleeving the first spring 5 on the outer side of the ball screw 12, wherein one end of the first spring 5 is in contact with the first thrust bearing 6;
fifthly, mounting the upper cover plate 2 on the lower shell 15, and fixedly connecting the ball screw 12 with the upper cover plate 2;
and sixthly, filling the damping liquid 3.
The foregoing is only a preferred embodiment of the present invention. The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention. All technical solutions which are formed by adopting equivalent substitutions or equivalent transformations shall fall within the protection scope of the appended claims.
Claims (8)
1. A liquid quality double-tuned absorber is characterized in that: comprises an upper cover plate (2) and a lower shell (15), the upper cover plate (2) is arranged on the lower shell (15), a sealing cavity (19) is formed between the upper cover plate (2) and the lower shell (15), an inertial volume component (20) and damping liquid (3) are arranged in the sealed cavity (19), the inerter assembly (20) comprises a ball screw (12) which is connected with the upper cover plate (2) and the lower shell (15), a flywheel (10) is arranged on the ball screw (12), a ball screw nut pair is formed between the flywheel (10) and the ball screw (12), one side of the flywheel (10) is provided with a first thrust bearing (6), the other side is provided with a second thrust bearing (11), a first spring (5) is arranged between the first thrust bearing (6) and the upper cover plate (2), and a second spring (13) is arranged between the second thrust bearing (11) and the bottom plate of the lower shell (15).
2. The liquid mass dual tuned absorber of claim 1, wherein: the volume of the damping liquid (3) is 70% -85% of the volume of the sealed cavity (19), the upper cover plate (2) is provided with a filling port (7), the filling port (7) is plugged through a screw plug (8), and a sealing ring is arranged between the screw plug (8) and the upper cover plate (2).
3. The liquid mass dual tuned absorber of claim 1, wherein: the peripheral surface of the flywheel (10) is provided with an external flywheel baffle (16).
4. The liquid mass dual tuned absorber of claim 1, wherein: bosses are arranged in the middle of the inner side of the upper cover plate (2) and in the middle of the inner side of the bottom plate of the lower shell (15), and the ball screw (12) is arranged between the bosses and fixed through screws (4) on two end faces.
5. The liquid mass dual tuned absorber of claim 1, wherein: an internal circulation phase inverter (18) and a plurality of balls (14) are arranged between the ball screw (12) and the flywheel (10), and the balls (14) realize circulation through the internal circulation phase inverter (18).
6. The liquid mass dual tuned absorber according to claim 5, wherein: the surfaces of the ball screw (12) and the flywheel (10) are plated with wear-resistant and corrosion-resistant protective layers, and the balls (14) are high-strength metal balls made of 30Cr or zirconium.
7. The liquid mass dual tuned absorber according to claim 5, wherein: the surfaces of the ball screw (12) and the flywheel (10) are plated with wear-resistant and corrosion-resistant protective layers, and the balls (14) are wear-resistant non-metallic balls and are made of ceramic or carbon fiber reinforced resin matrix composite materials.
8. A method of assembling a liquid mass dual tuned absorber as claimed in any one of claims 1 to 7, comprising the steps of:
firstly, mounting the ball screw (12) on a bottom plate of the lower shell (15);
secondly, sleeving the second spring (13) outside the ball screw (12), wherein one end of the second spring (13) is in contact with a bottom plate of the lower shell (15);
thirdly, respectively installing the first thrust bearing (6) and the second thrust bearing (11) on two sides of the flywheel (10), forming a ball screw nut pair by the flywheel (10) and the ball screw (12) through the balls (14), and rotating the flywheel (10) to enable one side of the second thrust bearing (11) to be in contact with the second spring (13);
fourthly, sleeving the first spring (5) on the outer side of the ball screw (12), wherein one end of the first spring (5) is in contact with the first thrust bearing (6);
fifthly, mounting the upper cover plate (2) on the lower shell (15), and fixedly connecting the ball screw (12) with the upper cover plate (2);
and sixthly, filling the damping fluid (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477280.XA CN109653080B (en) | 2018-12-05 | 2018-12-05 | Liquid mass double-tuned shock absorber and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477280.XA CN109653080B (en) | 2018-12-05 | 2018-12-05 | Liquid mass double-tuned shock absorber and assembling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109653080A CN109653080A (en) | 2019-04-19 |
| CN109653080B true CN109653080B (en) | 2020-06-30 |
Family
ID=66112465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477280.XA Active CN109653080B (en) | 2018-12-05 | 2018-12-05 | Liquid mass double-tuned shock absorber and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109653080B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485267A (en) * | 2019-09-03 | 2019-11-22 | 哈尔滨工业大学（深圳） | A kind of adhesion type self-tuning mass damper and its application method based on shear thickening liquid |
| CN111501430B (en) * | 2020-04-28 | 2021-06-29 | 上海工程技术大学 | Steel rail vibration absorber structure with ball screw combined device as vibrator |
| CN113756463B (en) * | 2021-09-13 | 2022-11-25 | 合肥工业大学 | Damper for tower |
| CN114370478B (en) * | 2021-12-29 | 2023-03-31 | 同济大学 | Inertial volume type nonlinear energy trap vibration damping system with adjustable nonlinear rigidity |
| CN115257680B (en) * | 2022-09-05 | 2024-04-16 | 马天和 | Damping type electromechanical braking unit suitable for urban rail vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3927469B2 (en) * | 2002-08-12 | 2007-06-06 | 日本電産株式会社 | Automatic balancing apparatus and manufacturing method thereof |
| CN102494080A (en) * | 2011-11-15 | 2012-06-13 | 江苏大学 | Integral shock absorber device of inertial container and damper in coaxial parallel connection |
| CN102937159A (en) * | 2012-10-31 | 2013-02-20 | 江苏大学 | Integrated hydro-pneumatic spring device |
| CN205173362U (en) * | 2015-11-27 | 2016-04-20 | 江苏铁科新材料股份有限公司 | Be used to hold and rubber combined shock absorber with wide band vibration damping |
| CN106763460B (en) * | 2017-01-17 | 2018-11-06 | 江苏科技大学 | A kind of peculiar to vessel subtract of ball screw type shakes vibration damping support device |
| CN108662072A (en) * | 2018-07-02 | 2018-10-16 | 浙江大学 | A kind of Parameter adjustable inertia mass damper for model suspension cable damping test |
-
2018
- 2018-12-05 CN CN201811477280.XA patent/CN109653080B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109653080A (en) | 2019-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109653080B (en) | Liquid mass double-tuned shock absorber and assembling method thereof | |
| CN106930592B (en) | A kind of multidirectional compound TMD damper of ball-type | |
| CN102561184B (en) | Vertical shock absorption device with external stayed cable | |
| WO2020155633A1 (en) | Combined torsional vibration control system for bridge | |
| CN106381933B (en) | A kind of antidumping complex spring three-dimensional shock isolation support | |
| CN105780640A (en) | Resettable shape memory alloy (SMA) multidimensional vibration isolating support | |
| CN110685212B (en) | External granule damping device of suspension cable | |
| CN105351442A (en) | Inerter and rubber composite absorber with broadband shock absorption performance | |
| CN101725660A (en) | High-frequency decoupling piston magneto-rheological damper | |
| CN110056603A (en) | A kind of external mounting type planetary roller screw-rubber composite vibration reducing device | |
| CN112814191A (en) | Inertial volume type multidirectional tuning energy-absorbing vibration-damping device | |
| CN112681856A (en) | Particle damper | |
| WO2017202302A1 (en) | Screw vibration reduction and isolation device | |
| CN205173362U (en) | Be used to hold and rubber combined shock absorber with wide band vibration damping | |
| CN105735509A (en) | Viscous liquid damping torsion-resistant cylinder used in building structure | |
| CN213682488U (en) | Workshop steel construction takes precautions against earthquakes | |
| CN206513758U (en) | A kind of novel automobile shock absorber | |
| CN209705175U (en) | A kind of external mounting type planetary roller screw-rubber composite vibration reducing device | |
| CN212388335U (en) | Self-anchoring and self-charging type adjustable hydraulic fluid damper | |
| CN109667357B (en) | Active control device with damping liquid box for moment of inertia | |
| CN111473082A (en) | Memory metal air spring particle damper | |
| CN114635318A (en) | Vibration isolator for track floating plate | |
| CN219930689U (en) | Multidimensional damping damper of horizontal-turning open bridge | |
| CN203363000U (en) | Vehicle wheel vibration absorber | |
| CN206902973U (en) | A kind of damping device of civil engineering structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20190419 Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Denomination of invention: Liquid mass double tuned shock absorber and its assembly method Granted publication date: 20200630 License type: Common License Record date: 20210714 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Date of cancellation: 20210826 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20190419 Assignee: Jiangsu University of Science and Technology Technology Transfer Center Co.,Ltd. Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2022980022975 Denomination of invention: Liquid mass double tuned shock absorber and its assembly method Granted publication date: 20200630 License type: Common License Record date: 20221128 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu University of Science and Technology Technology Transfer Center Co.,Ltd. Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2022980022975 Date of cancellation: 20230310 |
|
| EC01 | Cancellation of recordation of patent licensing contract |