CN108571552B - A kind of adjustable single-degree-of-freedom damper of rigidity - Google Patents
A kind of adjustable single-degree-of-freedom damper of rigidity Download PDFInfo
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- CN108571552B CN108571552B CN201810823811.XA CN201810823811A CN108571552B CN 108571552 B CN108571552 B CN 108571552B CN 201810823811 A CN201810823811 A CN 201810823811A CN 108571552 B CN108571552 B CN 108571552B
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- piston rod
- air cavity
- hole
- rigidity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0227—Telescopic characterised by the piston construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0281—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0281—Details
- F16F9/029—Details electrical, e.g. connections or contacts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3228—Constructional features of connections between pistons and piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
Abstract
The present invention discloses a kind of adjustable single-degree-of-freedom damper of rigidity.The damper includes a hexahedron air cavity shell, six piston rods, six dielectric elastomeric films and two eddy current retarders；A through-hole is offered at the middle part in each face of air cavity shell, seals a piece of dielectric elastomeric film in each through hole；Compressed air is filled in air cavity shell；Six piston rod difference faces, six through-hole settings, one end of each piston rod fits closely and is fixedly connected with corresponding dielectric elastomeric film；The central axis of piston rod is conllinear with the central axis of corresponding through-hole；One end of the separate through-hole of the piston rod of top and bottom passes through one end connection of the separate through-hole of the piston rod of connecting rod and side；Two eddy current retarders are separately mounted to the side of the close through-hole of the piston rod positioned at top and bottom, and the piston rod of top and bottom is threaded through the center of corresponding eddy current retarder respectively.The present invention can be effectively reduced the rigidity of air spring, and realize that rigidity is adjustable.
Description
Technical field
The present invention relates to mechanical engineering vibration isolation and damping technical fields, subtract more particularly to a kind of adjustable single-degree-of-freedom of rigidity
Shake device.
Background technique
Damper is the important equipment for being widely used in the industries such as mechanical, building and realizing damping effect.The type of damper
Very much, such as spring cushion, rubber shock absorber, damping shock absorber, air spring vibration reduction device, magneto-rheological vibration damper and various mixed
Close damper etc..Air spring is widely used with its stronger static load ability.
It is well known that only when the frequency w of extraneous vibration is greater than damper intrinsic frequency wn'sTimes Shi Caineng, which is played, to be subtracted
Vibration effect, therefore in order to adapt to the vibration of different frequency, it can be realized by reducing the intrinsic frequency of vibration isolator.Again due to every
The intrinsic frequency of vibration deviceCan by reduce vibration isolator rigidity or increase need by the quality of damping object come
Reduce the intrinsic frequency of vibration isolator.It will lead to damper load increase in view of quality m is increased, therefore reduce rigidity k into relatively reason
The selection thought.However the rigidity of air spring is larger, it is limited to the inhibitory effect of low-frequency vibration so as to cause it.
Summary of the invention
The object of the present invention is to provide a kind of adjustable single-degree-of-freedom dampers of rigidity, and the rigid of air spring is effectively reduced
Degree, and realize that rigidity is adjustable.
To achieve the above object, the present invention provides following schemes:
A kind of adjustable single-degree-of-freedom damper of rigidity, including a hexahedron air cavity shell, six piston rods, six Jie
Electric elastic membrane and two eddy current retarders；A through-hole is offered at the middle part in each face of the air cavity shell, each
Through hole seals a piece of dielectric elastomeric film；Compressed air is filled in the air cavity shell；Six piston rods point
The through-hole setting of other face six, one end of each piston rod fits closely and fixes with corresponding dielectric elastomeric film
Connection；The central axis of the piston rod is conllinear with the central axis of corresponding through-hole；Positioned at the air cavity case top and bottom
One end of separate through-hole of piston rod pass through the separate through-hole of connecting rod with the piston rod for being located at the air cavity housing side
One end connection；Two eddy current retarders are separately mounted to the close through-hole of the piston rod positioned at the air cavity case top
Side and positioned at the air cavity housing bottom piston rod close through-hole side, be located at the air cavity case top and bottom
Piston rod be threaded through the center of corresponding eddy current retarder respectively.
Optionally, each eddy current retarder includes multiple first annular permanent magnets, multiple first annular iron plates and one
First copper pipe；Multiple first annular permanent magnets are equidistantly uniformly set in corresponding work with multiple first annular iron plates
On stopper rod, the first annular permanent magnet and the first annular iron plate interval are arranged, and multiple first annular permanent magnets
It is fixedly connected with corresponding piston rod；First copper pipe is set in the first annular permanent magnet and the first annular iron plate
External and described first copper pipe is fixedly connected on the air cavity housing exterior walls；Each first annular permanent magnet is axial charging
Magnet, and two adjacent first annular permanent magnets repel each other setting.
Optionally, be each provided on the piston rod of the side of the air cavity shell the multiple second annular iron plates and
One the second copper pipe；Multiple second annular iron plates be equidistantly uniformly set on corresponding piston rod and with corresponding piston
Bar is fixedly connected；Second copper pipe is set in outside the described second annular iron plate and second copper pipe be fixedly connected on it is described
On air cavity housing exterior walls.
Optionally, fixed in one end far from the air cavity shell of each first copper pipe and second copper pipe
One bearing holder (housing, cover) is installed；Bearing is provided in the bearing holder (housing, cover)；The bearing holder (housing, cover) and the bearing are set in corresponding piston
On bar.
Optionally, the piston that each piston rod passes through end is fixedly connected with corresponding dielectric elastomeric film.
Optionally, the air cavity shell includes the hexahedron air cavity shell and an air cavity end cap of one side opening；The gas
Chamber end cap is tightly connected by the opening of diaphragm seal and the hexahedron air cavity shell of one side opening.
Optionally, one end positioned at the separate through-hole of the piston rod of the air cavity case top and bottom is respectively connected with one
Cross pin connector is respectively connected with an one shape pin positioned at one end of the separate through-hole of the piston rod of the air cavity housing side and connects
Connector；The both ends of each connecting rod are connected on cross pin connector and one shape pin connector.
Optionally, the piston passes through gasket with the dielectric elastomeric film and hexagon-headed bolt is fixed on corresponding piston
On bar.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: of the invention in hexahedron
The through hole for the air spring that air cavity shell is formed, which installs dielectric elastomeric film additional, reduces the rigidity of air spring, and can be by changing
Become the size of current of dielectric elastomeric film to change the rigidity size of air spring.And negative stiffness machine is constructed by piston rod and connecting rod
Structure further reduced the rigidity of damper.Eddy current retarder is added simultaneously, to further increase damping capacity.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure figure of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 2 is the front view of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 3 is the sectional view of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 4 is the knot of the hexahedron air cavity shell of the adjustable single-degree-of-freedom damper embodiment one side opening of rigidity of the present invention
Composition；
Fig. 5 is the structure chart of the diaphragm seal of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 6 is the structure chart of the air cavity end cap of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 7 is the structure chart of the dielectric elastomeric film of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 8 is the structure chart of the piston rod of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention；
Fig. 9 is the link mechanism figure of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of adjustable single-degree-of-freedom dampers of rigidity, and the rigid of air spring is effectively reduced
Degree, and realize that rigidity is adjustable.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the overall structure figure of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Fig. 2 is the front view of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Fig. 3 is the sectional view of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Referring to Fig. 1 to Fig. 3, the adjustable single-degree-of-freedom damper of the rigidity is single-degree-of-freedom (vertical direction) damper, by
Air spring, eddy current retarder and negative rigidity mechanism.
Fig. 4 is the knot of the hexahedron air cavity shell of the adjustable single-degree-of-freedom damper embodiment one side opening of rigidity of the present invention
Composition.
Fig. 5 is the structure chart of the diaphragm seal of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Fig. 6 is the structure chart of the air cavity end cap of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Fig. 7 is the structure chart of the dielectric elastomeric film of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Fig. 8 is the structure chart of the piston rod of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Referring to Fig. 1 to Fig. 8, air spring forms a closed cavity by hexahedron air cavity shell and dielectric elastomeric film 11.
A through-hole is offered at the middle part in each face of the air cavity shell, seals a piece of dielectric bullet in each through hole
Property film 11, is filled with compressed air in the air cavity shell.The center of each dielectric elastomeric film 11 is recessed the through-hole
Interior, edge is fixed on the outer wall of the air cavity shell.The air spring is transmitted by piston rod to be vibrated.The quantity of piston rod
It is six, respectively corresponds six through-holes.Six piston rods distinguish the face six through-hole settings, each piston rod
One end fit closely and be fixedly connected with corresponding dielectric elastomeric film 11；The central axis of the piston rod and corresponding through-hole
Central axis it is conllinear.The piston 12 that each piston rod passes through end is fixedly connected with corresponding dielectric elastomeric film 11.
The piston 12 is fixed on corresponding piston rod by gasket 14 and hexagon-headed bolt 16 with the dielectric elastomeric film 11.Six
The model M8-45 of hex bolt 16.The air cavity shell includes the hexahedron air cavity shell 19 and an air cavity of one side opening
End cap 13；The air cavity end cap 13 is sealed by the opening of diaphragm seal 15 and the hexahedron air cavity shell 19 of one side opening to be connected
It connects.A bearing holder (housing, cover) 4 is fixedly mounted in the side of the separate through-hole of each eddy current retarder；It is provided in the bearing holder (housing, cover) 4
Bearing 5；The bearing holder (housing, cover) 4 and the bearing 5 are set on corresponding piston rod.
When applying vibration to damper in the vertical direction, the piston rod positioned at upper and lower surface is under the guiding of bearing 5
Along the axially reciprocating of piston rod, and hexahedron air cavity shell can play the role of isolation vibration at this time.
Dielectric elastomeric film 11 of the present invention is applied not only to seal gas spring, can also be by changing size of current
Change the rigidity of dielectric elastomeric film 11, to change the rigidity size of air spring.
Referring to Fig. 1 to Fig. 3, the quantity of piston rod is 6, respectively four horizontal piston bars 18 and two vertical piston bars
3.Horizontal piston bar 18 is piston rod corresponding with the side of air cavity shell, vertical piston bar 3 be with the top of air cavity shell and
The corresponding piston rod in bottom.Eddy current retarder is that quantity is two, and two eddy current retarders are separately mounted to be located at two
The side of the close through-hole of vertical piston bar 3, two vertical piston bars 3 are threaded through the center of corresponding eddy current retarder respectively.
Each eddy current retarder includes multiple first annular permanent magnets 8, multiple first annular iron plates 9 and first bronze medal
Pipe 7；Multiple first annular permanent magnets 8 are equidistantly uniformly set in corresponding vertical with multiple first annular iron plates 9
On piston rod 3, the first annular permanent magnet 8 is arranged with the first annular interval of iron plate 9, and it is multiple it is described it is first annular forever
Magnet 8 is fixedly connected with corresponding vertical piston bar 3；First copper pipe 7 is set in the first annular permanent magnet 8 and described
Outside first annular iron plate 9 and first copper pipe 7 is fixedly connected on the air cavity housing exterior walls；Each first annular permanent magnetism
Iron 8 is the magnet of axial charging, and two adjacent first annular permanent magnets 8 repel each other setting, to enhance vortex intensity.Institute
The quantity for stating first annular iron plate 9 is one fewer than the quantity of the first annular permanent magnet 8.An embodiment of the invention
In, the quantity of first annular permanent magnet 8 is 3, and the quantity of first annular iron plate 9 is 2.In vertical eddy current retarder, the
One annular iron plate 9 plays magnetic conduction.
The multiple second annular iron plates 21 and second copper pipe 22 are provided on each horizontal piston bar 18；It is multiple
The second annular iron plate 21 be equidistantly uniformly set on corresponding horizontal piston bar 18 and with corresponding horizontal piston bar 18
It is fixedly connected；Second copper pipe 22 is set in the second annular 21 outside of iron plate and the second copper pipe 22 is fixedly connected on the air cavity shell
On outer wall.
First copper pipe 7 and the second copper pipe 22 are fixedly connected by M4-12 hexagon socket head cap screw 6 with air cavity shell.M4- simultaneously
Dielectric elastomeric film 11 is also fixed on air cavity shell by 12 hexagon socket head cap screws 6.
The fixed form of bearing holder (housing, cover) 4 and eddy current retarder are as follows: bearing holder (housing, cover) 4 is fixed on the by M5-25 hexagon socket head cap screw 10
On one copper pipe 7 or the second copper pipe 22.
When piston rod drives first annular permanent magnet 8 to be axially moved in the first copper pipe 7, meeting in the first copper pipe 7
Inductive loop is generated, the damping force for being vortexed generation can hinder the relative motion of annular magnet, to play the role of vibration damping.
Fig. 9 is 2 structure chart of connecting rod of the adjustable single-degree-of-freedom damper embodiment of rigidity of the present invention.
Referring to Fig. 1 to Fig. 3 and Fig. 9, negative rigidity mechanism is located at air cavity by four 18, eight, horizontal piston bar, 2, four, connecting rods
The dielectric elastomeric film 11 of housing side forms.One end of the separate through-hole of each vertical piston bar 3 passes through connecting rod 2 and each cross
It is connected to one end of the separate through-hole of piston rod 18；
One end of the separate through-hole of each vertical piston bar 3 is respectively connected with a cross pin connector 1, each horizontal piston
One end of the separate through-hole of bar 18 is respectively connected with an one shape pin connector 17；The both ends of each connecting rod 2 are connected to ten
On word pin connection head 1 and one shape pin connector 17.
When applying pressure in the vertical direction to damper, dielectric elastomeric film 11 at the top and bottom of air spring by
Squeeze, at this time four be located at air cavity housing side dielectric elastomeric films 11 can expand outward, thus push horizontal piston bar 18 to
Outer movement, horizontal piston bar 18 drive vertical piston bar 3 to move downward, thus achieve the effect that negative stiffness again.Conversely, when to subtracting
When the device that shakes applies pulling force straight up, negative rigidity mechanism can give 3 one upward thrusts of vertical piston bar.Thus negative stiffness machine
The negative stiffness of structure is combined with the positive rigidity of air spring can have the function that reduce system stiffness, to reduce vibration insulating system
Intrinsic frequency.
Cross pin connector 1 and one shape pin connector 17 are connect by pin with connecting rod 2, and connecting rod 2 can only turn around pin shaft
It is dynamic.
The effect of apparatus of the present invention is due to having used air spring, and the static load ability of whole device is stronger.It can be with
Change the positive rigidity size of entire vibration absorber by changing the electric current on dielectric elastomeric film 11, passes through a negative rigidity mechanism
The rigidity of entire vibration absorber is reduced, and joined eddy current retarder to improve effectiveness in vibration suppression, to make effectiveness in vibration suppression significantly
Enhancing.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (8)
1. a kind of adjustable single-degree-of-freedom damper of rigidity, which is characterized in that including a hexahedron air cavity shell, six pistons
Bar, six dielectric elastomeric films and two eddy current retarders；One is offered at the middle part in each face of the air cavity shell to lead to
Hole seals a piece of dielectric elastomeric film in each through hole；Compressed air is filled in the air cavity shell；Described in six
Piston rod distinguishes the face six through-hole settings, and one end of each piston rod is closely pasted with corresponding dielectric elastomeric film
Merging is fixedly connected；The central axis of the piston rod is conllinear with the central axis of corresponding through-hole；Positioned at air cavity shell top
It is remote with the piston rod positioned at the air cavity housing side that one end of the separate through-hole of the piston rod in portion and bottom passes through connecting rod
One end connection from through-hole；Two eddy current retarders are separately mounted to leaning on for the piston rod positioned at the air cavity case top
The side of nearly through-hole and positioned at the air cavity housing bottom piston rod close through-hole side, positioned at air cavity shell top
The piston rod of portion and bottom is threaded through the center of corresponding eddy current retarder respectively.
2. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 1, which is characterized in that each eddy current damping
Device includes multiple first annular permanent magnets, multiple first annular iron plates and first copper pipe；It is multiple it is described it is first annular forever
Magnet is equidistantly uniformly set on corresponding piston rod with multiple first annular iron plates, the first annular permanent magnet with
The first annular iron plate interval setting, and multiple first annular permanent magnets are fixedly connected with corresponding piston rod；It is described
First copper pipe is set in the first annular permanent magnet with the first annular iron plate outside and first copper pipe is fixedly connected
On the air cavity housing exterior walls；Each first annular permanent magnet is the magnet of axial charging, and two adjacent the first rings
Shape permanent magnet repels each other setting.
3. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 2, which is characterized in that each positioned at described
The multiple second annular iron plates and second copper pipe are provided on the piston rod of the side of air cavity shell；Multiple second rings
Shape iron plate is equidistantly uniformly set on corresponding piston rod and is fixedly connected with corresponding piston rod；Second copper pipe is arranged
Outside the described second annular iron plate and second copper pipe is fixedly connected on the air cavity housing exterior walls.
4. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 3, which is characterized in that each described
A bearing holder (housing, cover) is fixedly mounted in one end far from the air cavity shell of one copper pipe and second copper pipe；In the bearing holder (housing, cover)
It is provided with bearing；The bearing holder (housing, cover) and the bearing are set on corresponding piston rod.
5. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 1, which is characterized in that each piston
The piston that bar passes through end is fixedly connected with corresponding dielectric elastomeric film.
6. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 1, which is characterized in that the air cavity shell
Hexahedron air cavity shell and an air cavity end cap including one side opening；The air cavity end cap is opened by diaphragm seal with described on one side
The opening of the hexahedron air cavity shell of mouth is tightly connected.
7. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 1, which is characterized in that be located at the air cavity
One end of the separate through-hole of the piston rod of case top and bottom is respectively connected with a cross pin connector, is located at the air cavity shell
One end of the separate through-hole of the piston rod of body side surface is respectively connected with an one shape pin connector；The both ends of each connecting rod connect respectively
It connects on cross pin connector and one shape pin connector.
8. the adjustable single-degree-of-freedom damper of a kind of rigidity according to claim 5, which is characterized in that the piston and institute
Give an account of that electric elastic membrane passes through gasket and hexagon-headed bolt is fixed on corresponding piston rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810823811.XA CN108571552B (en) | 2018-07-25 | 2018-07-25 | A kind of adjustable single-degree-of-freedom damper of rigidity |
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| CN201810823811.XA CN108571552B (en) | 2018-07-25 | 2018-07-25 | A kind of adjustable single-degree-of-freedom damper of rigidity |
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| CN108571552B true CN108571552B (en) | 2019-06-18 |
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| CN112853913B (en) * | 2021-01-14 | 2022-11-18 | 中铁二十五局集团第五工程有限公司 | Horizontal splicing bridge |
| CN113090702B (en) * | 2021-03-12 | 2023-06-23 | 长安大学 | Composite damping vibration attenuation device |
| CN113878492A (en) * | 2021-10-08 | 2022-01-04 | 北京烁科精微电子装备有限公司 | Wafer fixing ring and CMP equipment with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100371623C (en) * | 2004-05-28 | 2008-02-27 | 重庆大学 | Magnetorheological suspensions damping device for automobile suspension system |
| CN102797786B (en) * | 2012-08-16 | 2014-04-23 | 北京航空航天大学 | Array-type novel high-performance eddy current damper |
| CN202833836U (en) * | 2012-09-26 | 2013-03-27 | 成都赛英科技有限公司 | Vibration isolator |
| CN203770500U (en) * | 2014-02-28 | 2014-08-13 | 同济大学 | Self-control electromagnetic damper |
| CN105402297B (en) * | 2014-08-14 | 2017-10-20 | 香港理工大学 | magnetic negative stiffness damper |
| CN105156532B (en) * | 2015-09-02 | 2017-03-22 | 西北工业大学 | Permanent magnet type eddy current energy-consumption dynamic vibration absorber |
| CN106969076A (en) * | 2017-03-30 | 2017-07-21 | 河海大学 | A kind of array electromagnetic damper |
| CN107355509B (en) * | 2017-08-10 | 2019-07-30 | 东南大学 | A kind of current vortex vibration absorber using lever principle |
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