CN108119590A - A kind of damper inspired based on biology - Google Patents
A kind of damper inspired based on biology Download PDFInfo
- Publication number
- CN108119590A CN108119590A CN201611078576.5A CN201611078576A CN108119590A CN 108119590 A CN108119590 A CN 108119590A CN 201611078576 A CN201611078576 A CN 201611078576A CN 108119590 A CN108119590 A CN 108119590A
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- China
- Prior art keywords
- damper
- piston rod
- hydraulic cylinder
- separator disc
- hydraulic
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- 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.)
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
-
- 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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
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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
- F16F9/3221—Constructional features of 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/0023—Purpose; Design features protective
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to a kind of dampers inspired based on biology, including closing and hydraulically full hydraulic cylinder (3), and the axial piston rod (5) being plugged in hydraulic cylinder (3), the piston rod (5) in hydraulic cylinder (3) are partly additionally provided with hydraulic pressure energy consumption unit；When piston rod (5) moves back and forth in hydraulic stem vertically, hydraulic pressure consumes energy unit to the hydraulic stem application such as the active force of the Biomechanical Mechanism of " weak bond and hiding length ".Compared with prior art, present invention utilizes the mechanical mechanism of biological " weak bond and hiding length ", the effect of energy consumption can be easily generated in structure control.
Description
Technical field
The present invention relates to Engineering Vibration control field, more particularly, to a kind of damper inspired based on biology.
Background technology
Biology inspires the core concept of (Bio-inspired) to be the behavior from organism, operating mechanism learning, opens
New thought is sent, and is applied to scientific research and engineering field.Biology inspires the application in engineering to have quite
Long history is called " bionics " there are one specific appellation.Bionics be study the structure of biosystem, shape, principle,
Behavior and interaction, so as to provide the technological sciences of new design philosophy, operation principle and system composition for engineering technology.
In recent years, the concept that biology inspired also just is introduced into civil engineering research field gradually.
The vibration control of structure is a popular research field, and its object is to mitigate earthquake and wind load to structure
Damage.The common equipment of vibration control of civil engineering structure includes tuned mass damper, base isolation equipment, diagonal-bracing type damping
Device etc..These equipment, which include passive type (be not required outside resources input) and semi-active type/active, (needs outside resources
Supply).In recent years, the damper inspired based on biology has been used for field of vibration control, to prevent structure extreme
Damage under disaster.
Biosystem has unique energy consumption mechanism to prevent the damage as caused by natural calamity.Research shows abalone shells
There is excellent mechanical property and tribological property with bone, mainly have benefited from its 3% interstitial organic matrix.This organic matter
Possesses the biomethanics machine of " weak bond and hiding length (Sacrificial bonds and hidden length) " comprising one kind
Special " glue " of system.Biosystem with " weak bond and hiding length " performance can with dissipation energy so as to resist outside threat,
So that abalone shells and bone have remarkable mechanical property.
This mechanical mechanism is reversible, and after external force unloads, weak bond can still re-form.Abalone shells, bone and
In titin in muscle, every molecule has many weak bonds, they are cascaded while act on.Weak bond on every molecule
Force-displacement relationship for " sawtooth " shape (such as Fig. 1 (a)), Fig. 1 (a) is that biological researcher passes through and carries out mechanical test to abalone shells
Obtained force-displacement relationship curve obtains the reason of " weak bond and hiding length " mechanism as shown in Fig. 1 (b) according to the measured curve
Think mechanical model.The present invention is based on this reversible mechanical mechanism model and puts forward.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind based on biology inspiration
On A Retrofitted Damper.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of damper inspired based on biology is plugged in liquid including closing and hydraulically full hydraulic cylinder and axial direction
Piston rod in cylinder pressure, the piston rod portion in hydraulic cylinder are additionally provided with hydraulic pressure energy consumption unit；Piston rod is vertically in hydraulic pressure
When being moved back and forth in bar, hydraulic pressure energy consumption unit applies such as the Biomechanical Mechanism of " weak bond and hiding length " hydraulic stem
Active force.
Preferably, the piston rod is equipped with separator disc, is additionally provided in hydraulic cylinder by the hydraulic cylinder and separator disc
It is divided into the liquid separation plate of central symmetry two half-unit point；
In the two half-unit of the separator disc point, the separator disc of each half part is close with the surface of the hydraulic cylinder
It contacts, m half-duplex channels and n in the same direction unidirectional relief passages in the same direction is arranged on the separator disc of each half part,
In, m, n are the integer not less than 1, and are met：The direction of half-duplex channel and unidirectional relief passage in same half part
On the contrary, the direction of two half-duplex channels in different half parts is also opposite；
In the two half-unit of the hydraulic cylinder point, along the direction of the half-duplex channel on separator disc, the liquid of each half part
The internal face of cylinder pressure is divided into sequentially connected inner wall a sections and b sections of inner wall, wherein, a sections of inner wall is the light being in close contact with separator disc
Slide wall face is machined with the groove of x items vertically in inner wall b sections, wherein, x is the integer not less than 1.
It is furthermore preferred that on the separator disc of same half part, the half-duplex channel, unidirectional relief passage are distributed on together respectively
On one semicircle contour.
It is furthermore preferred that the half-duplex channel includes running through the through hole a of separator disc and be arranged in the through hole a
One check valve；
The unidirectional relief passage includes the list for running through the through hole b of separator disc and being arranged in the through hole b
To valve and a pressure relief valve.
It is furthermore preferred that piston packing is additionally provided on separator disc.
It is furthermore preferred that the split position of b sections of a sections of the inner wall and inner wall meets：The intersection point of the two is just no external pressure
During power, the equalization point residing for separator disc.
Preferably, the damper further includes two groups of magnetic cushion units for being separately positioned on piston rod stroke both ends,
Every group of magnetic cushion unit includes fixed permanent magnet and mobile permanent magnet, wherein, two groups of fixed permanent magnets are set respectively
In two /V ends of piston rod stroke, described two mobile permanent magnets are separately positioned on piston rod towards positive stop end portion
Part；
When piston rod moves back and forth, with the fixed permanent magnet and mobile permanent magnet for organizing magnetic cushion unit with the two it is opposite away from
From reduction and the repulsion gradually enhanced is provided, generate magnetic cushion effect.
Preferably, the damper further includes the cylinder being connected with hydraulic cylinder, wherein, it is plugged in hydraulic cylinder and is pierced by
One end of piston rod also protrude into the cylinder；
In position, the end of opposite cylinder and piston rod further respectively has the flexible flexural pivot being connected with outer body structure
Bearing.
Preferably, the inner wall of the hydraulic cylinder is cylindrical.
Preferably, before work, also filled with gas in the hydraulic cylinder.Prevent the liquid when equilibrium state is converted when damper
Pressure impact.
Compared with prior art, present invention utilizes the Biomechanical Mechanisms of " weak bond and hiding length " so that damper
There is energy consumption effect in structure motion.Traditional dissipative vibration-damper utilizes metal yield or rubbing action, viscous and viscoplasticity more
Material consumes energy, and the energy consumption mechanism that this patent proposes has novel negative stiffness characteristics, and control effect can be better than traditional quilt
Dynamic energy consumption technology, can even match in excellence or beauty active, semi- active control in some cases.
Description of the drawings
Fig. 1 is the Biomechanical Mechanism figure of existing " weak bond and hiding length ", wherein, in Fig. 1（a）For abalone shells power-
Displacement relation figure, in Fig. 1（b）For preferable force-displacement relationship figure；
Fig. 2 is the preferable force-displacement curve figure of the damper based on " weak bond and hiding length " energy consumption mechanism；
Fig. 3 is the schematic cross-sectional view of the present invention；
The schematic cross-sectional view in A-A faces, B-B faces and C-C faces that Fig. 4 is Fig. 3；
Fig. 5 is the force-displacement curve schematic diagram of the damper of the present invention；
In figure, 1- flexibility ball hinged supports, 2- cylinders, 3- hydraulic cylinders, 4- liquid separation plates, 5- piston rods, 6- separator discs, 7-
Check valve, 8- pressure relief valves, 9- piston packings, 10- axial stem sealing rings, 11- movement permanent magnets, 12- fixing bolts,
13- fixed permanent magnets.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
It is a kind of based on biology inspire damper, structure as shown in figure 3, including closing and hydraulically full hydraulic cylinder 3,
The cylinder 2 being connected with hydraulic cylinder 3 by one group of fixing bolt 12, is axially plugged in hydraulic cylinder 3 and the work of cylinder 2 is stretched into one end
Stopper rod 5,5 part of piston rod in hydraulic cylinder 3 are additionally provided with hydraulic pressure energy consumption unit；Piston rod 5 is past in hydraulic stem vertically
When moving again, hydraulic pressure consumes energy unit to the hydraulic stem application such as the effect of the Biomechanical Mechanism of " weak bond and hiding length "
Power.
" weak bond and hiding length " Biomechanical Mechanism is different from the damper and spring that are used in conventional damper.In order to
It realizes in the structure, design needs to be symmetrical, therefore damping characteristic is specifically designed, it is ensured that is happened at the two of equilibrium state
Side.Fig. 2 indicates the preferable force-displacement curve of the damper based on " negative weak bond and hiding length " energy consumption mechanism.This implementation
In example, hydraulic cylinder 3 is internal hydraulically full using the hydraulic unit for allowing big damping force.It, can in order to realize original upload performance
To add a small amount of air to system, this will prevent hydraulic shock when damper when equilibrium state is converted.
As shown in figure 4, the piston rod 5 is equipped with separator disc 6 (being herein spaced plate), hydraulic cylinder 3 is axially set
The liquid separation plate 4 put divides for two parts, a portion (cylindrical in semicircle herein) is taken, when piston rod 5 is in no pressure
Equilbrium position when, semicolumn barrel is divided into asymmetric inner wall a sections and b sections of inner wall by separator disc 6, is carved on inner wall b ends
Uniformly groove vertically, remaining inner wall a sections are smooth.Another part of hydraulic cylinder 3 is centrosymmetric with it to be set
It puts.
Separator disc 6 is also divided by liquid separation plate 4 for symmetrical two parts, and each section is a semi-disc.Take separation
One of semi-disc of disk 6 has 5 axial passages on inner ring and outer ring, is respectively unidirectional half-duplex channel,
Interior to be equipped with check valve 7 and unidirectional unidirectional relief passage, the interior pressure equipped with reversed check valve 7 and series connection is released
Put valve 8.Another semi-disc symmetrical configuration is set, still, the direction of the check valve 7 of symmetric position completely on the contrary, each passage,
Check valve 7, the structural parameters of pressure relief valve 8 are identical.
The periphery of separator disc 6 is additionally provided with piston packing 9, to ensure that separator disc 6 and the sealing of 3 wall surface of hydraulic cylinder connect
It touches.Piston rod 5 and the both ends contact position of hydraulic cylinder 3 also are provided with axial stem sealing ring 10, it is possible to prevente effectively from liquid leaks out hydraulic pressure
Cylinder 3.
The stroke both ends of piston rod 5 are additionally provided with two groups of magnetic cushion units, and every group of magnetic cushion unit includes fixing forever
Magnet 13 and mobile permanent magnet 11, wherein, two groups of fixed permanent magnets 13 are arranged on 2 He of cylinder by fixing bolt 12 respectively
The end of hydraulic cylinder 3, two groups of movement permanent magnets 11 are separately positioned on the end and separator disc 6 of piston rod 5.Piston rod 5 is reciprocal
When mobile, provided with the fixed permanent magnet 13 for organizing magnetic cushion unit and mobile permanent magnet 11 with the reduction of the two relative distance
The reversed repulsion gradually enhanced has a cushioning effect power when 5 vertical tremor of piston rod, prevents from separating circle when piston rod 5 from moving
Disk touches 3 end of hydraulic cylinder, causes the damage of device.It is external that the end of cylinder 2 and piston rod 3 further respectively has a connection
The flexible ball hinged support 1 of agent structure.
The specific operational process of damper of the present embodiment is as follows：
When whole system does not receive external pressure, in equilibrium state, at this point, separator disc 6 is in hydraulic cylinder 3
Heart equilbrium position (being the point of intersection of b sections of a sections of inner wall and inner wall).
By taking structure shown in Fig. 3 as an example, when piston rod 5 moves right, the liquid of 3 top right of hydraulic cylinder passes through check valve
7 turn left flowing, and the liquid on the right of lower part is turned left flowing by groove, does not export damping force, i.e. F=0 at this time.
When piston rod 5 moves right extreme position, apart from equilbrium position X1When, start toward left movement.3 lower part of hydraulic cylinder
The liquid on the left side is turned right flowing by groove.3 upper one-way valve 7 of hydraulic cylinder is closed, and the liquid in left side, which is compressed, generates pressure, and one
It reaches the threshold value of the setting of pressure relief valve 8 to denier, and the liquid in left side will be turned right flowing by pressure relief valve 8 and check valve 7.Institute
The pressure threshold set by pressure relief valve 8 simply can be multiplied by the cross-sectional area of semi-disc to determine by the external force needed, be damped
Power size is Pr× A, wherein PrIt is the threshold value that pressure relief valve 8 is set, A is semi-disc effective area.Piston rod 5 returns to balance
During position, damping force F=Pr× A is remained unchanged.
After piston rod 5 reaches equilbrium position, slightly toward moving left, the liquid on top can from left to right be flowed by groove
Dynamic, damping force F becomes 0.
Piston rod 5 is moved to the left immediately, is occurred and above-mentioned identical process.After one cycle, design
The preferable force-displacement curve of damper is as shown in Figure 5.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously can easily make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the invention is not restricted to above-described embodiment, abilities
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's
Within protection domain.
Claims (10)
1. a kind of damper inspired based on biology is plugged in liquid including closing and hydraulically full hydraulic cylinder (3) and axial direction
Piston rod (5) in cylinder pressure (3), which is characterized in that the piston rod (5) in hydraulic cylinder (3) is partly additionally provided with hydraulic pressure energy consumption
Unit；When piston rod (5) moves back and forth in hydraulic stem vertically, hydraulic pressure consumes energy unit to the hydraulic stem application such as " weak bond
With hiding length " Biomechanical Mechanism active force.
A kind of 2. damper inspired based on biology according to claim 1, which is characterized in that the piston rod (5)
Separator disc (6) is equipped with, is additionally provided in hydraulic cylinder (3) and the hydraulic cylinder (3) and separator disc (6) is divided into central symmetry
The liquid separation plate (4) of two half-unit point；
In the two half-unit of the separator disc (6) point, the table of the separator disc (6) of each half part with the hydraulic cylinder (3)
Face is in close contact, and in the same direction unidirectional of m half-duplex channels and n in the same direction is arranged on the separator disc (6) of each half part and is released
Pressure passageway, wherein, m, n are the integer not less than 1, and are met：Half-duplex channel leads to unidirectional release of pressure in same half part
The direction in road is on the contrary, the direction of two half-duplex channels in different half parts is also opposite；
In the two half-unit of the hydraulic cylinder (3) point, along the direction of the half-duplex channel on separator disc (6), each half part
The internal face of hydraulic cylinder (3) is divided into sequentially connected inner wall a sections and b sections of inner wall, wherein, a sections of inner wall is close with separator disc (6)
The hydraulically smooth surface of contact is machined with the groove of x items vertically in inner wall b sections, wherein, x is the integer not less than 1.
A kind of 3. damper inspired based on biology according to claim 2, which is characterized in that point of same half part
Every on disk (6), the half-duplex channel, unidirectional relief passage are distributed on respectively on same semicircle contour.
A kind of 4. damper inspired based on biology according to claim 2, which is characterized in that the half-duplex channel bag
Include the check valve (7) run through the through hole a of separator disc (6) and be arranged in the through hole a；
The unidirectional relief passage includes the list for running through the through hole b of separator disc (6) and being arranged in the through hole b
To valve (7) and a pressure relief valve (8).
5. a kind of damper inspired based on biology according to claim 2, which is characterized in that on separator disc (6) also
Equipped with piston packing (9).
6. a kind of damper inspired based on biology according to claim 2, which is characterized in that a section of the inner wall with
The split position that b sections of inner wall meets：The intersection point of the two just for no external pressure when, the equalization point residing for separator disc (6).
7. a kind of damper inspired based on biology according to claim 1, which is characterized in that the damper also wraps
Two groups of magnetic cushion units for being separately positioned on piston rod (5) stroke both ends are included, every group of magnetic cushion unit includes fixing forever
Magnet (13) and mobile permanent magnet (11), wherein, two groups of fixed permanent magnets (13) are separately positioned on piston rod (5) stroke
Two /V ends, described two mobile permanent magnets (11) are separately positioned on piston rod (5) towards the part in positive stop end portion；
When piston rod (5) moves back and forth, with the fixed permanent magnet (13) for organizing magnetic cushion unit and mobile permanent magnet (11) with two
The reduction of person's relative distance and the repulsion gradually enhanced is provided, generate magnetic cushion effect.
8. a kind of damper inspired based on biology according to claim 1, which is characterized in that the damper also wraps
The cylinder (2) being connected with hydraulic cylinder (3) is included, wherein, the one end for the piston rod (5) for being plugged in hydraulic cylinder (3) and being pierced by also is stretched
Enter in the cylinder (2)；
The flexible ball being connected with outer body structure is further respectively had in the end of the opposite cylinder in position (2) and piston rod (5)
Hinged-support (1).
A kind of 9. damper inspired based on biology according to claim 1, which is characterized in that the hydraulic cylinder (3)
Inner wall it is cylindrical.
10. a kind of damper inspired based on biology according to claim 1, which is characterized in that before work, the hydraulic pressure
Also filled with gas in cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078576.5A CN108119590B (en) | 2016-11-30 | 2016-11-30 | A kind of damper inspired based on biology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078576.5A CN108119590B (en) | 2016-11-30 | 2016-11-30 | A kind of damper inspired based on biology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108119590A true CN108119590A (en) | 2018-06-05 |
| CN108119590B CN108119590B (en) | 2019-09-27 |
Family
ID=62226958
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611078576.5A Active CN108119590B (en) | 2016-11-30 | 2016-11-30 | A kind of damper inspired based on biology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027098A (en) * | 2018-08-31 | 2018-12-18 | 温州临界科技有限公司 | A kind of hydraulic positioning buffer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030047396A1 (en) * | 2001-09-10 | 2003-03-13 | Simon Van Wonderen | Shock absorber through the rod damping adjustment |
| CN1786509A (en) * | 2005-12-13 | 2006-06-14 | 江苏大学 | Bionic coupling vibration damper |
| CN102126563A (en) * | 2011-01-21 | 2011-07-20 | 南京航空航天大学 | Aircraft landing gear drop lifting force simulating device |
| CN202082331U (en) * | 2010-12-31 | 2011-12-21 | 中国直升机设计研究所 | Hydraulic energy absorption piston rod |
| WO2016058767A1 (en) * | 2014-10-14 | 2016-04-21 | Zf Friedrichshafen Ag | Method for connecting a separating plate of a vibration damper to a cylinder, vibration damper, and motor vehicle |
-
2016
- 2016-11-30 CN CN201611078576.5A patent/CN108119590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030047396A1 (en) * | 2001-09-10 | 2003-03-13 | Simon Van Wonderen | Shock absorber through the rod damping adjustment |
| CN1786509A (en) * | 2005-12-13 | 2006-06-14 | 江苏大学 | Bionic coupling vibration damper |
| CN202082331U (en) * | 2010-12-31 | 2011-12-21 | 中国直升机设计研究所 | Hydraulic energy absorption piston rod |
| CN102126563A (en) * | 2011-01-21 | 2011-07-20 | 南京航空航天大学 | Aircraft landing gear drop lifting force simulating device |
| WO2016058767A1 (en) * | 2014-10-14 | 2016-04-21 | Zf Friedrichshafen Ag | Method for connecting a separating plate of a vibration damper to a cylinder, vibration damper, and motor vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027098A (en) * | 2018-08-31 | 2018-12-18 | 温州临界科技有限公司 | A kind of hydraulic positioning buffer |
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| CN108119590B (en) | 2019-09-27 |
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