CN108087473A - A kind of gas-liquid bullet double frequency vibration isolator - Google Patents
A kind of gas-liquid bullet double frequency vibration isolator Download PDFInfo
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- CN108087473A CN108087473A CN201711256485.0A CN201711256485A CN108087473A CN 108087473 A CN108087473 A CN 108087473A CN 201711256485 A CN201711256485 A CN 201711256485A CN 108087473 A CN108087473 A CN 108087473A
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- inner cylinder
- shell
- cavity
- piston body
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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
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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
- F16F9/3214—Constructional features of pistons
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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
- F16F9/34—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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of gas-liquid bullet double frequency vibration isolators, belong to Vibration Absorbing System Design technical field.Including：Shell, inner cylinder, elastic rubber, piston body, lower cover and air chamber auxiliary chamber；Inner cylinder one end is set inside the housing, and elastic rubber is arranged between shell and inner cylinder, and side bonds the upper sap cavity to form sealing with shell and inner cylinder respectively；Shell is circumferentially provided with Anti-off bolt, prevents elastic rubber from coming off；One end of inner cylinder is provided with air compensation cavity, and air compensation cavity is provided with piston body, and lower sap cavity is formed between piston body and inner cylinder, and lower sap cavity is connected with upper sap cavity；Air compensation cavity is provided with the interior lower cover being spirally connected, and the cavity between lower cover and piston body is connected with air chamber auxiliary chamber, to change the support stiffness of piston body；Gas-liquid bullet double frequency vibration isolator is arranged on Helicopter Main by shell and lower cover and subtracts in strut, for vibration isolation.The advantages such as the present invention has simple in structure, light-weight, vibration isolation bandwidth, and antiresonance point dynamic rate is low.
Description
Technical field
The invention belongs to Vibration Absorbing System Design technical fields, and in particular to a kind of gas-liquid bullet double frequency vibration isolator.
Background technology
Helicopter vibration feature is the typical relevant periodic vibration of rotor speed-frequency to be superimposed with random vibration, is passed through
Spectrum analysis understands that rotor vibratory load is most important vibration source, particularly caused by integral multiple rotor speed-frequency oscillating load
Body vibration, component system etc. account for more than the 90% of total amount value, in frequency range of concern (in 60Hz), sometimes seriously
Helicopter performance is influenced to play and become one of key problem of modern helicopters research plan.Reduce shaking in helicopter flight
Dynamic horizontal is always the major issue studied and solved during helicopter design, it influences relaxing for driver and occupant
The all various aspects of adaptive, the safety of flight structure, the working environment of equipment etc..
Variable rotor speed can be changed according to demand in flight course, change so as to cause speed-frequency, and then rotor is made to shake
Dynamic driving frequency changes.Therefore need to redesign damper form, to reduce variable speed helicopter vibration problem.
At present three are generally can be divided into according to vibration control technology having been applied on helicopter and studying and its feature
Class：
1) vibration source vibration control technology, such as propeller hub bump leveller；
2) housing construction vibration respond control technology, including passive/active control technology；
3) vibration transfer path control technology, as master subtracts active/passive vibration isolation technique.
Above-mentioned vibration control technology has its technical advantage and defect, such as：The constant propeller hub bump leveller of frequency
Damping efficiency then reduces quickly with rotation speed change；(weight cost is big, frequency band is narrow, vibration damping for passive type vibration insulating system inherent limitation
Limited efficacy), it is difficult to meet and ensure that helicopter body level of vibration maintains wanting for reduced levels in wider flight envelope
It asks；Vibration Active Control technology usually can vibration damping more than 70%, dynamic vibration absorber designing technique is more ripe in itself, but in body
Preferred installation site and dynamic vibration absorber Parameters Optimal Design are the core technologies of housing construction Vibration Absorption Designing in structure.Traditional
It is all mechanical that dynamic absorber master, which subtracts vibrating isolation system, since lever swing arm needs space, master is subject to subtract mounting structure strong
The limitation of degree and rigidity.Therefore traditional vibration damping mode has been unable to meet the demand of variable speed helicopter multifrequency vibration damping.
The content of the invention
The purpose of the present invention：To solve the above-mentioned problems, the present invention proposes a kind of gas-liquid bullet double frequency vibration isolator, passes through end
Portion's bolt is mounted on master and subtracts on strut, and elastic stiffness is provided with rubber, is generated by the movement in inertia channel of liquid
Lower sap cavity pressure change offsets exciting force, and very high vibration isolation efficiency can be reached under the isolation frequency of design, is subtracted so as to reach
It shakes the purpose of noise reduction, while optimal isolation frequency can be adjusted by valve switch.
Technical scheme：A kind of gas-liquid bullet double frequency vibration isolator, including：Shell, inner cylinder, elastic rubber, piston body,
Lower cover and air chamber auxiliary chamber；
Described inner cylinder one end is arranged on the enclosure, and is socketed with elastic rubber；
The elastic rubber is arranged between the shell and the inner cylinder, and side is glued respectively with the shell and inner cylinder
Knot forms the upper sap cavity of sealing；
The shell is circumferentially provided with Anti-off bolt, prevents elastic rubber from coming off；
The one end of the inner cylinder away from shell is provided with air compensation cavity, and the air compensation cavity is provided with piston body, institute
It states and lower sap cavity is formed between piston body and the inner cylinder, the lower sap cavity is connected with the upper sap cavity；
The one end of the air compensation cavity away from piston body is provided with the interior lower cover being spirally connected, the lower cover and the work
Cavity between cock body is connected with the air chamber auxiliary chamber, to change the support stiffness of piston body；
The gas-liquid bullet double frequency vibration isolator is arranged on Helicopter Main by shell and lower cover and subtracts in strut, for vibration isolation.
Preferably, the inner cylinder is a metallic plug body, and the metallic plug body is provided with fluid passage, and the fluid passage is used
In the connection of the upper sap cavity and lower sap cavity.
Preferably, the air chamber auxiliary chamber is connected by compensation conduit with the air compensation cavity, the compensation pipe
Road is provided with control valve；
By opening or closing for the valve, the rigidity of regulating piston body bottom surface, and then adjust isolation frequency.
Preferably, the shell positioned at upper sap cavity is provided with liquid injection hole, and the liquid injection hole is connected with the upper sap cavity, for filling out
It fills or discharges liquid.
Preferably, the Anti-off bolt is arranged on elastic rubber close to the one side of the lower sap cavity, and for elastic rubber
The lower edge of glue carries out /V；
The Anti-off bolt is fixed on through the housing in the inner cylinder.
Technical solution of the present invention advantageous effect：A kind of gas-liquid bullet double frequency vibration isolator of the present invention, has simple in structure, weight
Gently, the advantages that vibration isolation bandwidth；Meanwhile the present apparatus high static rigidity similary with strut, and under required isolation frequency
Reach the low dynamic rate of needs, while so as to which effective vibration isolation be completely secured, rotor and main subtract will not produce in flight course
Raw larger static displacement and influence flight control and safety, the vibration isolation of gas-liquid bullet double frequency its liquid is used to have as inertance element
There is the equivalent arm of force of bigger, effectively eliminate mechanical type lever and resulting abrasion.
Description of the drawings
Fig. 1 is the structure diagram of a preferred embodiment of gas-liquid bullet double frequency vibration isolator of the present invention；
Fig. 2 is the mechanical model schematic diagram of a preferred embodiment of gas-liquid bullet double frequency vibration isolator of the present invention；
Fig. 3 is the operation principle schematic diagram of a preferred embodiment of gas-liquid bullet double frequency vibration isolator of the present invention；
Wherein, 1- shells, 2- inner cylinders, 3- elastic rubbers, 4- piston bodies, 5- lower covers, 6- air chamber auxiliary chambers, on 7-
Sap cavity, 8- Anti-off bolts, 9- air compensation cavities, sap cavity under 10-, 11- fluid passages, 12- control valves.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
As shown in Figure 1, a kind of gas-liquid bullet double frequency vibration isolator, including：Shell 1, inner cylinder 2, elastic rubber 3, piston body 4, under
Cover 5 and air chamber auxiliary chamber 6；
2 one end of inner cylinder is arranged on inside shell 1, and is socketed with elastic rubber 3, and elastic rubber 3 is arranged on shell 1 and inner cylinder
Between 2, side bonds the upper sap cavity 7 for forming sealing with shell 1 and inner cylinder 2 respectively, vertical when occurring between shell 1 and inner cylinder 2
To during relative motion, elastic rubber 3 generates detrusion and provides elastic stiffness.
Shell 1 is circumferentially provided with Anti-off bolt 8, and Anti-off bolt 8 is mounted on elastic rubber 3 close to the one side of lower sap cavity 10,
And for carrying out /V to the lower edge of elastic rubber 3, Anti-off bolt 8 is fixed on through housing 1 in inner cylinder 2, prevents elastic rubber
Glue 3 comes off and moves excessive；
The one end of inner cylinder 2 away from shell 1 is provided with air compensation cavity 9, volume compensation when being deformed as liquid bullet vibration damping and
Certain rigidity is provided；Air compensation cavity 9 is provided with piston body 4, and lower sap cavity 10, lower sap cavity are formed between piston body 4 and inner cylinder 2
10 connect with upper sap cavity 7；
In the present embodiment, inner cylinder 2 is a metallic plug body, and metallic plug body is provided with fluid passage 11, and fluid passage 11 is used for
The connection of upper sap cavity 7 and lower sap cavity 10.
When vertical relative motion occurs between shell 1 and inner cylinder 2, liquid is by fluid passage in upper and lower two intracavitary stream
It is dynamic, generate frictional resistance and inertia force.
The one end of air compensation cavity 9 away from piston body 4 be provided in the lower cover 5 that is spirally connected, lower cover 5 and piston body 4 it
Between cavity connected with air chamber auxiliary chamber 6, to change the support stiffness of piston body 4；
Gas-liquid bullet double frequency vibration isolator is arranged on Helicopter Main by shell 1 and lower cover 5 and subtracts in strut, for vibration isolation.
In the present embodiment, the shell of upper sap cavity 7 is provided with liquid injection hole, liquid injection hole is connected with upper sap cavity 7, for filling
Or discharge liquid.
Assuming that the topside area of upper sap cavity is A1, the bottom area of lower sap cavity is A2, and fluid passage area is A0, outer barrel with
The dynamic rate of rubber is K1 between inner cylinder, and air compensation cavity equivalent stiffness is K2, and the liquid quality in fluid passage is m, inner cylinder
Lower end quality of connection is M1, and outer barrel upper end quality of connection is M2.Its mechanical model can be equivalent to shown in Fig. 2.
Under the action of vertical force fs, the displacement of lower end is X1, and the displacement of upper end is X2.Liquid moves in fluid passage
Displacement is X0, and the displacement that cavity of resorption liquid is moved compared with shell is Xd.The pressure of liquid is denoted as f2 suffered by cavity of resorption bottom, cavity of resorption
Pressure is denoted as P2, and the pressure of liquid suffered by upper top of chamber is denoted as f1, and the pressure of epicoele is denoted as P1, and the pressure direction of liquid is made with it
It is in the same direction with the normal direction in face, therefore pressure is scalar, without direction, the positive negative indication of pressure compared with pressure during former equilbrium position increasing
Big or reduction.
When liquid flows in inertia channel, viscous damping forces and passage due to the viscosity generation of fluid will be subject to expand
It opens and shrinks and generate local losses damping force.If damped coefficient is c, the loss factor of rubber is η.
Assuming that：
R1=A1/A0 R2=A2/A0 (1)
By continuity equation A0X0=A1 (X1-X2)=A2X2 of fluid, pressure equation P 2=(- K2X2)/
A2 and fluid m in fluid chamber passage 11, the equilibrium equation that the quality of upper end connection is M1, the quality of lower end connection is M2：
It can obtain, when it is ω harmonic excitations that f, which is frequency, vibration isolator makes to level off to 0 by the vibration of vibration isolation object, has most
Good isolation frequency is：
Present apparatus vibration isolation principle is as follows：
6 be air chamber auxiliary chamber in Fig. 3, is connected by control valve 12 with air compensation cavity 9, when the valve is closed.
The dynamic rate for having air chamber is：
Wherein, α, β are the parameter related with air chamber shape, and α is just, β is negative；K is the adiabatic exponent of air chamber, herein
Think constant term.Ps is the gas pressure in air compensation cavity 9 and air chamber auxiliary chamber 6, AeIt is mended for piston body 4 and air
Repay effective contact area of chamber 9, VsFor the volume of air compensation cavity 9.
When the valve is open, because isolation frequency and A3Between ratio can influence mobility of the air in valve, it is assumed that
Treat isolation frequency f and A3Ratio it is sufficiently small (when i.e. valve openings are sufficiently large), then have the dynamic stiffness of air chamber and auxiliary chamber
There is following expression：
Wherein, VaFor the volume of auxiliary chamber.
From above-mentioned (4), (5) two formulas, when the valve is open, (Vs+Va) bigger than original compensated with air cavity volume, it is empty
The dynamic rate of gas spring can decline, from the preceding fast optimal isolation frequency formula (3) of vibration isolator, at this time vibration isolator it is optimal every
Vibration frequency can also decline therewith.
Gas-liquid bullet double frequency vibration isolator can be designed according to driving frequency and excitation amplitude and realize corresponding function：First, instead of
Spring provides rigidity, provides given tensile load and displacement, i.e., high static rigidity；Second, damping is provided, it can be in antiresonance point and attached
It is near that higher damping is provided；3rd, adjustable shock sucking function can be reached by changing fluid density or passage ratio in specific frequency
Isolate vibration, i.e., the low dynamic rate under specific frequency under rate；4th, double frequency vibration isolation function can be by the switch of valve, to move
State changes the optimal isolation frequency of vibration isolator.
Traditional vibration isolator is compared, this gas-liquid bullet double frequency vibration isolator preferably absorbs vibration using soft rubber layer,
And damping is provided using the liquid in annular seal space, reduce resonance state or vibratory impulse bottom offset, gas-liquid bullet isolation mounting
High static rigidity similary with strut is may be designed to, and the low dynamic rate of needs is issued in required isolation frequency, from
And while effective vibration isolation is completely secured, rotor and main subtract will not generate larger static displacement and influence to fly in flight course
Row control and safety so as to preferably improve the reliability of riding comfort and complete machine, help to be promoted that China is civilian goes straight up to
The Development Level of machine and the competitiveness in market.
Another performance of gas-liquid bullet double frequency vibration isolator is to facilitate adjustable shock sucking function.In specific Frequency point or frequency
In the range of, liquid flows the mass block instead of traditional antiresonance in intracavitary, utilizes acceleration of a small amount of liquid in cavity tubule
Flow to replace the enlarge-effect of lever, the very big inertial load of generation offsets rotor vibratory load.Generally in frequency range
Interior, dynamic rate is smaller than static rigidity.This shock sucking function can function well as the effect of vibration and noise reducing under dominant frequency.Together
When, it can be according to rotor rotary regimes, control valve switch, to adjust the optimal isolation frequency of vibration isolator, to reach in each state
Under, there is higher vibration isolation efficiency.
The invention gas-liquid bullet double frequency vibration isolator is mainly made of rubber, liquid, air chamber and metal, is mountable to helicopter
Master subtracts on strut, achievees the purpose that vibration and noise reducing, and it is with simple in structure, light-weight, vibration isolation bandwidth, antiresonance crawl
The advantages that state rigidity is low, and non-antiresonance region static rigidity is high, Frequency Adjustable, and its effect of vibration and noise reduction is than traditional vibration isolator more
Effectively.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (5)
1. a kind of gas-liquid bullet double frequency vibration isolator, it is characterised in that：Including：Shell (1), inner cylinder (2), elastic rubber (3), piston body
(4), lower cover (5) and air chamber auxiliary chamber (6)；
Described inner cylinder (2) one end is arranged on the shell (1) inside, and is socketed with elastic rubber (3)；
The elastic rubber (3) is arranged between the shell (1) and the inner cylinder (2), side respectively with the shell (1)
And inner cylinder (2) bonds the upper sap cavity (7) for forming sealing；
The shell (1) is circumferentially provided with Anti-off bolt (8), prevents elastic rubber (3) from coming off；
The one end of the inner cylinder (2) away from shell (1) is provided with air compensation cavity (9), and the air compensation cavity (9) is provided with work
Cock body (4) forms lower sap cavity (10), the lower sap cavity (10) and the upper liquid between the piston body (4) and the inner cylinder (2)
Chamber (7) connects；
The one end of the air compensation cavity (9) away from piston body (4) is provided with the interior lower cover (5) being spirally connected, the lower cover (5)
Cavity between the piston body (4) is connected with the air chamber auxiliary chamber (6), to change the support of piston body (4)
Rigidity；
The gas-liquid bullet double frequency vibration isolator is arranged on Helicopter Main and is subtracted in strut by shell (1) and lower cover (5), for every
It shakes.
2. gas-liquid bullet double frequency vibration isolator according to claim 1, it is characterised in that：The inner cylinder (2) be a metallic plug body, institute
It states metallic plug body and is provided with fluid passage (11), the fluid passage (11) is for the upper sap cavity (7) and lower sap cavity (10)
Connection.
3. gas-liquid bullet double frequency vibration isolator according to claim 1, it is characterised in that：The air chamber auxiliary chamber (6) is logical
Overcompensation pipeline is connected with the air compensation cavity (9), and the compensation conduit is provided with control valve (12)；
By opening or closing for the valve (12), the rigidity of regulating piston body (4) bottom surface, and then adjust isolation frequency.
4. gas-liquid bullet double frequency vibration isolator according to claim 1, it is characterised in that：Shell positioned at upper sap cavity (7) is set
There is liquid injection hole, the liquid injection hole is connected with the upper sap cavity (7), for filling or discharging liquid.
5. gas-liquid bullet double frequency vibration isolator according to claim 1, it is characterised in that：The Anti-off bolt (8) is arranged on bullet
Property rubber (3) close to the one side of described lower sap cavity (10), and for carrying out /V to the lower edge of elastic rubber (3)；
The Anti-off bolt (8) is fixed on through the housing (1) in the inner cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711256485.0A CN108087473B (en) | 2017-12-03 | 2017-12-03 | Gas-liquid bullet dual-frequency vibration isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711256485.0A CN108087473B (en) | 2017-12-03 | 2017-12-03 | Gas-liquid bullet dual-frequency vibration isolator |
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| CN108087473A true CN108087473A (en) | 2018-05-29 |
| CN108087473B CN108087473B (en) | 2020-05-12 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372933A (en) * | 2018-11-15 | 2019-02-22 | 中国直升机设计研究所 | It is a kind of to be series at the main liquid bullet vibration isolator for subtracting strut |
| CN109538678A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of liquid bullet vibration isolator of high Static stiffness |
| CN110296171A (en) * | 2019-05-24 | 2019-10-01 | 南京航空航天大学 | A kind of Helicopter Main with helical structure subtracts period strut |
| CN111918502A (en) * | 2020-08-18 | 2020-11-10 | 马鞍山英维爱生态科技有限公司 | Impact-resistant heating type main control box |
| CN112172632A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Variable-pressure active liquid vibration isolation seat system |
| CN112178110A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Liquid elastic vibration isolator capable of achieving assembly type frequency modulation |
| CN112178112A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Double piezoelectric type active liquid elastic vibration isolation device and method |
| CN112178111A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Inner cylinder embedded type liquid elastic vibration isolator |
| CN114017458A (en) * | 2021-10-09 | 2022-02-08 | 中国直升机设计研究所 | Hydraulic frequency modulation type semi-active liquid elastic vibration isolation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6340153B1 (en) * | 2000-11-02 | 2002-01-22 | General Dynamics Advanced Technology Systems, Inc. | Shock and acoustic mount |
| CN103629292A (en) * | 2012-08-23 | 2014-03-12 | 贝尔直升机德事隆公司 | System and method for vibration isolation |
| CN204150863U (en) * | 2014-10-08 | 2015-02-11 | 日立电梯（中国）有限公司 | A kind of elevator vibration isolation guide piece |
| CN105082916A (en) * | 2014-05-21 | 2015-11-25 | 盐城工业职业技术学院 | Electronic control air suspension system control strategy employing pressure adjustment of auxiliary air chamber |
| CN105351421A (en) * | 2015-11-19 | 2016-02-24 | 成都九十度工业产品设计有限公司 | Hydro-pneumatic suspension device |
-
2017
- 2017-12-03 CN CN201711256485.0A patent/CN108087473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6340153B1 (en) * | 2000-11-02 | 2002-01-22 | General Dynamics Advanced Technology Systems, Inc. | Shock and acoustic mount |
| CN103629292A (en) * | 2012-08-23 | 2014-03-12 | 贝尔直升机德事隆公司 | System and method for vibration isolation |
| CN105082916A (en) * | 2014-05-21 | 2015-11-25 | 盐城工业职业技术学院 | Electronic control air suspension system control strategy employing pressure adjustment of auxiliary air chamber |
| CN204150863U (en) * | 2014-10-08 | 2015-02-11 | 日立电梯（中国）有限公司 | A kind of elevator vibration isolation guide piece |
| CN105351421A (en) * | 2015-11-19 | 2016-02-24 | 成都九十度工业产品设计有限公司 | Hydro-pneumatic suspension device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372933A (en) * | 2018-11-15 | 2019-02-22 | 中国直升机设计研究所 | It is a kind of to be series at the main liquid bullet vibration isolator for subtracting strut |
| CN109538678A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of liquid bullet vibration isolator of high Static stiffness |
| CN110296171A (en) * | 2019-05-24 | 2019-10-01 | 南京航空航天大学 | A kind of Helicopter Main with helical structure subtracts period strut |
| CN111918502A (en) * | 2020-08-18 | 2020-11-10 | 马鞍山英维爱生态科技有限公司 | Impact-resistant heating type main control box |
| CN112172632A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Variable-pressure active liquid vibration isolation seat system |
| CN112178110A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Liquid elastic vibration isolator capable of achieving assembly type frequency modulation |
| CN112178112A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Double piezoelectric type active liquid elastic vibration isolation device and method |
| CN112178111A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Inner cylinder embedded type liquid elastic vibration isolator |
| CN114017458A (en) * | 2021-10-09 | 2022-02-08 | 中国直升机设计研究所 | Hydraulic frequency modulation type semi-active liquid elastic vibration isolation device |
| CN114017458B (en) * | 2021-10-09 | 2023-11-07 | 中国直升机设计研究所 | Hydraulic frequency modulation type semi-active hydraulic bomb vibration isolation device |
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| CN108087473B (en) | 2020-05-12 |
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