CN1786509A - Bionic coupling vibration damper - Google Patents
Bionic coupling vibration damper Download PDFInfo
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- CN1786509A CN1786509A CN 200510123014 CN200510123014A CN1786509A CN 1786509 A CN1786509 A CN 1786509A CN 200510123014 CN200510123014 CN 200510123014 CN 200510123014 A CN200510123014 A CN 200510123014A CN 1786509 A CN1786509 A CN 1786509A
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Abstract
A bionic coupled vibration damper is coupled up via wire ropes(gauzes), oil liquid, air, a damping plate, a rubber cover, a rubber film and a base. A screen frame structure is formed by several strands of wire ropes or wire gauzes. Oil-flowing upper and lower cavities are formed via the damping plate, the rubber cover and the rubber film. An air-extruding cavity is formed via the rubber film and the base.
Description
Technical field
The present invention relates to bionic mechanical, refer in particular to a kind of bionic coupling vibration damper that is used for the anti-vibrating and impact protection.
Background technique
Excitation and the couplings of multiple enchancement factor under the different operating condition such as vibration, impact, formed very complicated dynamics environment, become the key factor of restriction various kinds of equipment functional reliability, stability of motions, people endeavour the theory and technology research of vibration reduction and cushioning all the time for a long time.Present technical barrier: existing damper technique can not be taken into account Chinese People's Anti-Japanese Military and Political College's impact or not can take into account impact, and can not realize three-dimensional vibration shock isolation function when attenuation vibration.
In recent decades, along with the high development of science and technology, new vibrational theory, measuring technology, novel anti-vibrating and impact dielectric material and device continue to bring out.The vibration damping erosion control, in fact relate to aspect of social life, no matter be the protection of aerospace industry and military equipment, or auto manufacturing and other engineering field, people are with the important research content of vibration shock isolation Study on Technology as equipment performance and safety, for example along with the progress and maturation of high damping viscoelastic material production technology, the damping-constraining vibration absorbing theory obtains good result on the many resonance peaks problem that solves a large amount of wide band stochastic vibrations that exist in modern age; The wire rope damper with high reliability of American Studies exploitation by good nonlinear dampling and Rigidity Matching design, makes it in the favorable damping performance, gains great popularity in reinforcement technique.Introduce with reference to USS United States Standard by mechanics study institute of the Chinese Academy of Sciences, 623 of the Ministry of Aerospace Industry, Southern Yangtze University etc. on this basis and developed the multi-series wire rope damper, also greatly enriched domestic application in space flight and other field.Domestic in addition Southeast China University and Shanghai Communications University have carried out successful coupling and have developed no humorous peak vibration damper (the type only has unidirectional vibration-damping function) and combined vibration-damping device (structure and performance and no humorous peak vibration damper are similar) with reference to developed country's damping technology applied spring rigidity such as the U.S. and Germany and additional variable Coulomb damping.Poplar equality Development and design multi-medium coupling isolator, oil damping vibration damper etc. and studied characteristic and obtained to take into account preferably the anti-vibrating and impact performance.But these shock absorber parts can not be taken into account shock resistance mostly, say nothing of the Chinese People's Anti-Japanese Military and Political College and impact, and therefore can't satisfy fully in the more and more requirement of safe and reliable work under the harsh conditions of environment with not ing.
Summary of the invention
The objective of the invention is at the technical barrier of realizing taking into account Chinese People's Anti-Japanese Military and Political College's vibration and impact, for solving existing damper technique when the attenuation vibration, can not take into account the shortcoming that the Chinese People's Anti-Japanese Military and Political College impacts or not can take into account anti-vibration and impact, a kind of bionic coupling vibration damper of realizing three-dimensional vibration shock isolation function is provided.
The technological scheme that realizes above-mentioned technical purpose is:
Bionic coupling vibration damper is made of wire rope (net), fluid, air, damping plate, rubber cover, rubber membrane and base coupling, some strand steel wire ropes or steel wire guard constitute the cover shelf structure, utilize damping plate and rubber cover that is positioned at its top and the rubber membrane that is positioned at its below to constitute the upper and lower chamber of fluid crossfire simultaneously, and rubber membrane and base form the air extrusion chamber, form the physical arrangement of similar woodpecker head and neck feature.
And it is 5～20Hz that the first rigidity of wire rope satisfies natural frequency, and the area ratio of damping plate is 1/6～1/20, and the ratio in air cavity volume and fluid chamber is 1/2～1/10.
The present invention is that the woodpecker neck has the spongiform bone of one deck and adsorbing many liquid and has film at neck and constituted small air clearance by using for reference woodpecker head and neck characteristic, possesses strong muscle systems simultaneously, and skeleton, thereby formed the structural feature of Chinese People's Anti-Japanese Military and Political College's vibratory impulse function, utilized wire rope (steel wire), fluid, air, multiple medium designs such as rubber has formed a kind of bionical coupled mode vibration damper, and this biomimetic type vibration damper utilizes the superior attenuation vibration performance of wire rope, the non-linear adjustment characteristic of Chinese People's Anti-Japanese Military and Political College's impact property that the fluid damping is superior and air extrusion is carried out Coupling Design and is realized bionical anti-vibrating and impact safeguard function.
Adopt some strand steel wire ropes to constitute a cover shelf structure, generally can design 3～8 strands, also visual size requirement is designed to steel wire guard pattern, characteristic is identical, this cover shelf structure can be arranged at and further reduce structure in the oil pocket, shows during this cover shelf structure work to have certain rigidity and Coulomb damping, thus imitation woodpecker head and neck muscles and bones characteristic, design damping plate and rubber cover and rubber membrane constitute the upper and lower chamber of fluid crossfire, and rubber membrane that rigidity is minimum and base form the air extrusion chamber; The time spent is done in vibrational excitation, fluid extruding air forms the pump action and produces oil damping and come attenuation vibration in conjunction with the wire rope Coulomb damping with making the fluid crossfire, the fluid damping changes with the amplitude variations of vibrational excitation, make between upper mounting plate and base relative displacement big during large-amplitude vibration, then the pump action is with strong, produce big oil damping also in conjunction with suppressing good peak, for example resonance peak this moment wire rope Coulomb damping rice of generation effect; Make between upper mounting plate and base relative displacement little during small amplitude motion, a little less than then the pump action is used, produce small oil damping, and wire rope Coulomb damping this moment does not produce and is used for adapting to vibration isolation, thereby the fluid flow characteristics of imitation woodpecker head and neck muscle skin characteristic and absorption, the small air clearance characteristic of extruding air imitation woodpecker neck, thus play the effect of regulating rigidity and damping.At instantaneity excited by impact, this bionical vibration damper has the characteristic that produces large deformation, vibration damper designs the wire rope generation large deformation with soft stiffness characteristics on the one hand energy is stored, this characteristic makes the utilization of space acquisition fullest between upper mounting plate and base, on the other hand this moment since large deformation cause the action of strong pump with produces very big oil damping also combination the Coulomb damping of generation effect impact energy is slowly decayed, and can obtain less shock transmissibility.
Advantage of the present invention is:
Has the ability of taking into account the big vibration of decay and Chinese People's Anti-Japanese Military and Political College's impact in three directions simultaneously, versatility is very strong, this bionical vibration damper also has the vibration shock isolation characteristic in the horizontal plane all directions vertical with the master drive direction, but service behaviour is poor slightly than the master drive direction, and has small, the easily manufactured characteristics of structure.It can be used for aspect, especially Chinese People's Anti-Japanese Military and Political College's vibratory impulse aspect that vehicle-mounted, boat-carrying and the protection of airborne electronic equipment information equipment anti-vibrating and impact etc. need vibration shock isolation.
Description of drawings
Fig. 1 is bionic coupling vibration damper embodiment 1 structural representation
Fig. 2 is bionic coupling vibration damper embodiment 2 structural representations
Fig. 3 is the application of bionic coupling vibration damper in the MEMS manufacturing platform
Fig. 4 is the application of bionic coupling vibration damper in vehicle electronic device
1-base 2-wire rope (3～8 strands) 3-rubber cover 4-upper mounting plate and screw rod 5-rubber membrane 6-pressing plate 7-damping plate 8-fluid, 9-screw 10-pressure ring 11-screw rod crown (guard) (about the 3-8 thigh) 13-MEMS device of 12-wire rope and the bionical vibration damper 15-MEMS of encapsulation 14-manufacturing platform 16-vehicle 17-electronic equipment
Embodiment
As shown in Figure 1, embodiment 1 adopts some strand steel wire ropes to constitute a cover shelf structure 2, generally adopts 3～8 strands, and wherein damping plate 7 constitutes the upper and lower chamber of fluid crossfire with rubber cover 3 and rubber membrane 5, the minimum rubber membrane 5 of rigidity forms the air extrusion chamber with base 1, and fluid 8 generally can adopt silicone oil.Realize that thus the coupling of material and structure forms the physical arrangement of similar woodpecker head and neck feature, thereby reach the target that the superior Chinese People's Anti-Japanese Military and Political College's impact property of the attenuation vibration performance, the fluid damping that utilize wire rope superior and the non-linear adjustment characteristic of air extrusion realize bionical anti-vibrating and impact safeguard function.
As shown in Figure 2, embodiment 2 adopts some strand steel wire ropes to constitute crown cover shelf structure 12, generally adopts 3～8 strands, and it places in the rubber cover 3.Wherein damping plate 7 constitutes the upper and lower chamber of fluid crossfire with rubber cover 3 and rubber membrane 5, and the minimum rubber membrane 5 of rigidity forms the air extrusion chamber with base 1, and fluid 8 generally can adopt silicone oil.
The nominal-mass of bearing on demand during design is calculated the first rigidity of wire rope, and natural frequency is preferably dropped on about 5～20Hz, and the area ratio of designing and calculating damping plate is in 1/6～1/20 scope, and the ratio in air cavity volume and fluid chamber is 1/2～1/10.Can structure be designed to microminiature and medium-and-large-sized according to other requirement when guaranteeing above-mentioned parameter, the manufacturing of this structure is easier.But the connection apparent size of wire rope and upper mounting plate adopts whole thigh to wear solderless wrapped connection, splicing or welding.
Table 1 bionic coupling vibration damper performance parameters
| The | Embodiment | 1 | | |
| Natural frequency | 5Hz | 12Hz | 20Hz | |
| The area ratio of | 1/6 | 1/10 | 1/20 | |
| The ratio in air cavity volume and | 1/2 | 1/5 | 1/20 | |
| The resonance region vibration transmissibility | ≤2.5 | ≤1.5 | 1 | |
| Vibration isolation efficiency | Vibration isolation efficiency after the 〉=40Hz＞85% | Vibration isolation efficiency after the 〉=50Hz＞85% | Vibration isolation efficiency after the 〉=60Hz＞85% | |
| Shock transmissibility | ≤ 0.7 (following target≤0.4) | ≤ 0.5 (following target≤0.3) | ≤ 0.65 (following target≤0.4) |
| Maximum relative displacement | ≤12mm | ≤15mm | ≤18mm |
Bionical vibration damper is fit to the large impact of anti-10g～500g/11ms or more thump and total root-mean-square value are 1g～300g/2～200Hz or stronger stochastic vibration, therefore be fit to the equipment anti-vibrating and impact protection down of various dynamic environments, particularly reach protection under rugged environment at the higher electronic message unit of vibration shock isolation performance requirement.
Shown in Fig. 3,4, the application of bionic coupling vibration damper of the present invention in the MEMS manufacturing platform, and the application of bionic coupling vibration damper in vehicle electronic device.
Claims (3)
1. bionic coupling vibration damper, it is characterized in that constituting by wire rope, fluid, air, damping plate, rubber cover, rubber membrane and base coupling, some strand steel wire ropes or steel wire guard constitute the cover shelf structure, utilize damping plate and rubber cover that is positioned at its top and the rubber membrane that is positioned at its below to constitute the upper and lower chamber of fluid crossfire simultaneously, and rubber membrane and base form the air extrusion chamber, form the physical arrangement of similar woodpecker head and neck feature.
2. bionic coupling vibration damper according to claim 1, it is 5～20Hz that the first rigidity that it is characterized in that wire rope satisfies natural frequency, and the area ratio of damping plate is 1/6～1/20, and the ratio in air cavity volume and fluid chamber is 1/2～1/10.
3. bionic coupling vibration damper according to claim 1 is characterized in that the cover shelf structure that above-mentioned some strand steel wire ropes constitute, and it is 3～8 strands, also can be steel wire guard pattern, and this cover shelf structure also can place in the rubber cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101230143A CN100432477C (en) | 2005-12-13 | 2005-12-13 | Bionic coupling vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101230143A CN100432477C (en) | 2005-12-13 | 2005-12-13 | Bionic coupling vibration damper |
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| Publication Number | Publication Date |
|---|---|
| CN1786509A true CN1786509A (en) | 2006-06-14 |
| CN100432477C CN100432477C (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101230143A Expired - Fee Related CN100432477C (en) | 2005-12-13 | 2005-12-13 | Bionic coupling vibration damper |
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| CN (1) | CN100432477C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072272A (en) * | 2011-01-14 | 2011-05-25 | 四川大学 | Corner-free rubber shock absorber for precision instrument |
| CN105972145A (en) * | 2016-05-11 | 2016-09-28 | 北汽福田汽车股份有限公司 | Shaft sleeve shock absorber and vehicle |
| CN108119590A (en) * | 2016-11-30 | 2018-06-05 | 同济大学 | A kind of damper inspired based on biology |
| CN108657377A (en) * | 2018-05-23 | 2018-10-16 | 武汉麦康德设备有限公司 | Four buckets are nested shape marine pump group vibration isolation mounts |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208412U (en) * | 1986-10-30 | 1988-02-10 | 费水福 | Air-capsule hydraulic shock-absorber |
| FR2643024B1 (en) * | 1989-02-13 | 1994-04-15 | Peugeot Automobiles | HYDROPNEUMATIC SUSPENSION WITH VARIABLE DAMPING AND STIFFNESS |
| JP3988143B2 (en) * | 1995-07-22 | 2007-10-10 | 株式会社日立製作所 | Hydraulic shock absorber |
| CN1145459A (en) * | 1995-09-11 | 1997-03-19 | 李辉 | Liquid-gas damper |
| CN2560695Y (en) * | 2002-06-22 | 2003-07-16 | 中国人民解放军总参谋部工程兵科研三所 | Drum type bevelled-clamping wire rope shock isolator |
| CN2560790Y (en) * | 2002-08-12 | 2003-07-16 | 中国人民解放军军事医学科学院卫生装备研究所 | Wire rope dampener |
-
2005
- 2005-12-13 CN CNB2005101230143A patent/CN100432477C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072272A (en) * | 2011-01-14 | 2011-05-25 | 四川大学 | Corner-free rubber shock absorber for precision instrument |
| CN102072272B (en) * | 2011-01-14 | 2014-04-16 | 四川大学 | Corner-free rubber shock absorber for precision instrument |
| CN105972145A (en) * | 2016-05-11 | 2016-09-28 | 北汽福田汽车股份有限公司 | Shaft sleeve shock absorber and vehicle |
| CN105972145B (en) * | 2016-05-11 | 2018-03-27 | 北汽福田汽车股份有限公司 | Axle sleeve shock absorber and vehicle |
| CN108119590A (en) * | 2016-11-30 | 2018-06-05 | 同济大学 | A kind of damper inspired based on biology |
| CN108119590B (en) * | 2016-11-30 | 2019-09-27 | 同济大学 | A kind of damper inspired based on biology |
| CN108657377A (en) * | 2018-05-23 | 2018-10-16 | 武汉麦康德设备有限公司 | Four buckets are nested shape marine pump group vibration isolation mounts |
| CN108657377B (en) * | 2018-05-23 | 2024-01-30 | 武汉麦康德设备有限公司 | Four-bucket overlapping type marine pump set vibration isolation base |
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| Publication number | Publication date |
|---|---|
| CN100432477C (en) | 2008-11-12 |
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