CN102518731B - Gap self-adapting viscous damper with high energy consumption - Google Patents
Gap self-adapting viscous damper with high energy consumption Download PDFInfo
- Publication number
- CN102518731B CN102518731B CN 201110409853 CN201110409853A CN102518731B CN 102518731 B CN102518731 B CN 102518731B CN 201110409853 CN201110409853 CN 201110409853 CN 201110409853 A CN201110409853 A CN 201110409853A CN 102518731 B CN102518731 B CN 102518731B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- head
- piston head
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a gap self-adapting viscous damper with high energy consumption, which belongs to the technical field of vibration attenuation in engineering and comprises a piston rod, a cylinder head, a cylinder, and piston heads. A damping gap is formed between the piston head and the cylinder to form a main fluid channel. A guide ring inclining towards the middle is arranged at each of both sides of the inner wall of the cylinder. The piston heads are provided with two groove shaped energy storage rings. The end surfaces of the piston heads outside the energy storage rings incline downward and outward to form a guide channel with the cylinder. The piston heads outside the energy storage rings are respectively provided with assistant fluid channels which are parallel to the inclined end surfaces of the piston heads that form the guide channel. Guide discs are arranged at both sides of the piston head at the bottom of the assistant fluid channel. The damper provided by the invention has the advantages of stable damping force under complex working environments and simple structure, and is able to resist heavy impact load.
Description
Technical field
The present invention relates to a kind of damper, particularly a kind of highly energy-consuming gap self-adaptive type viscous damper belongs to the engineering antivibration area.
Background technique
Structure energy-eliminating shock-absorbing technology is a kind of new antidetonation prevention technique.In the structure that adopts the energy-eliminating shock-absorbing technology, some nonload bearing element of structure is designed to have particular components---the damper of big energy dissipation capacity.In seismic process, produce big damping, the seismic energy of concentrated area dissipative structure, the vibration of attenuating structure is reacted rapidly, thereby avoids or reduce the damage of agent structure.And the realization of passive energy dissipation structure mainly depends on the damper of developing the easy and superior performance of structural type.At present developed a large amount of dampers both at home and abroad, as mild steel damper, frcition damper, metal damper, intelligent damper etc.Along with the popularization of damping technology, developing various simple and practical novel energy-eliminating shock-absorbing devices, to satisfy the needs that engineering uses be development trend.And viscous damper is with its simple structure, and advantages such as stable performance and superior performance are just gradually by engineers approval and research and extension energetically.
Domestic in the last few years scholar and company have carried out serial research and development to structure with viscous damper, and its form is divided into clearance type, hole formula and hybrid substantially.Its basic functional principle all is the on-way resistance acting consumed energy that the local resistance that produces during by little space of viscous liquid and fluid produce when flowing.
Because the randomness of shake/vibration, structure earthquake and wind bestir oneself with under reaction very big randomness is arranged, simultaneously because the appearance of present various special structure forms and huge member, cause the reaction of structure and member that very big unpredictability is arranged, therefore for work damper in this state higher requirement has been arranged also.Especially tackle some impact load, because damper is subjected to very big impact load in very short time, thereby exceeding the nominal load of its design and nominal operation speed fully, the load that causes transient suppessor to bear damper is destroyed fully and moment has lost it and absorbs the effect of seismic energy protection agent structure; In addition, though the damping straight hole of present single form and damper cylinder body its control effect and power consumption effect to damping force relatively simple for structure is all poor, is difficult under the complicated dynamic excitation condition and works.
Summary of the invention
Especially easily lost efficacy and the low problem of energy efficiency under the impact load at the dynamic excitation of complexity in order to solve traditional viscous damper, the present invention proposes a kind of highly energy-consuming gap self-adaptive type viscous damper, it is stable that this damper has under the complex work environment damping force, can resist bigger impact load characteristics such as simple structure simultaneously.
Technological scheme of the present invention is as follows:
A kind of highly energy-consuming gap self-adaptive type viscous damper, comprise piston rod, cylinder head, cylinder barrel, piston head, the cylinder head of described cylinder barrel and both sides is formed the cylinder body of sealing, the cylinder head that piston rod passes both sides extend in the cylinder body, piston rod in the cylinder body is provided with piston head, form the damping gap between piston head and the cylinder barrel, constitute the fluid main passage, it is characterized in that: the inwall both sides of described cylinder barrel are provided with the guide ring to intermediate, inclined, and the cylinder barrel wall thickness in the middle of the guide ring is slightly smaller than the cylinder barrel wall thickness in the guide ring outside; Described piston head is provided with the accumulation of energy ring of twice groove shape, the piston head end face in the twice accumulation of energy ring outside is outside oblique having a down dip respectively, and constitute drainage channel between the cylinder barrel, be respectively arranged with the auxiliary flow passage on the piston head in the twice accumulation of energy ring outside, the auxiliary flow passage is parallel with the inclined end face of the piston head that constitutes drainage channel, the piston head both sides of auxiliary flow channel bottom are provided with positioning disk, and the positioning disk edge is provided with the angle of oblique outer incline.
The angle of slope of described drainage channel is 15 °～30 °.
The degree of depth of described accumulation of energy ring is 1/15 of piston head diameter.
The diameter of described auxiliary flow passage is 1/2 of damping gap.
The angle of described guide ring and cylinder barrel axis is 5 °～10 °.
The angle that the angle of oblique outer incline and positioning disk axis form on the described positioning disk is 15 °～30 °.
The cylinder head arranged outside of piston rod one end has connecting sleeve, and connecting sleeve is provided with silencing apparatus; Adopt bearing pin to be connected between the piston rod the other end and the end bearing.
The present invention redesigns by piston head and the cylinder body to viscous damper, has realized that the stable and energy efficiency of the damping force of damper under extraneous incentive condition condition complicated and changeable significantly improves.Compared with prior art, advantage of the present invention is as follows:
1) the present invention makes damper adapt to complex operating environment more by the structure that changes piston head in the damper, thereby makes damper not only can guarantee necessarily to exert oneself under the low situation of speed but also can make the damper Security of excessive assurance damper in movement process of can not exerting oneself under extraneous speed condition with higher.
2) change the circulation of fluid in cylinder body by changing some construction measures among the present invention, thereby made the convection current of fluid in cylinder body more significantly accelerate the conduction of heat, improved the efficient of damper power consumption.
3) pass through simple construction measure among the present invention, make damper that the effect of buffering can be arranged near range, thereby can prevent the crash protection dampener body of cylinder body and the piston head of damper.
Description of drawings
Fig. 1 damper sectional schematic diagram;
Fig. 2 damper piston head organigram;
Fig. 3 damper internal viscosity liquid circulation flow schematic representation (piston head moves right);
Fig. 4 damper internal viscosity liquid circulation flow schematic representation (piston head is to left movement);
Fig. 5 damper becomes the gap buffer schematic representation;
Among the figure: 1, piston rod; 2, cylinder head; 3, cylinder barrel; 4, piston head; 5, locking nut; 6, threaded rod; 7, connecting sleeve; 8, bearing pin; 9, axle head baffle plate; 10, end bearing; 11, guide ring; 12, connecting bolt; 13, drainage channel; 14, accumulation of energy ring; 15, positioning disk; 16, auxiliary flow passage; 17, fluid main passage; 18, axle guide ring; 19-20, axle one-way sealing circle; 21, dust ring; 22, socket head screw; 23, O RunddichtringO; 24, screwed plug; 25, silencing apparatus; 26, damping gap; 27-28, fluid track.
Embodiment
Its concrete structure is seen Fig. 1～5, mainly comprise piston rod 1, cylinder head 2, cylinder barrel 3, piston head 4, locking nut 5, threaded rod 6, connecting sleeve 7, bearing pin 8, axle head baffle plate 9, end bearing 10, guide ring 11, connecting bolt 12, drainage channel 13, accumulation of energy ring 14, positioning disk 15, auxiliary flow passage 16, fluid main passage 17, axle with guide ring 18, axle with one-way sealing circle 19-20, dust ring 21, socket head screw 22, O RunddichtringO 23, screwed plug 24, silencing apparatus 25, damping gap 26.The cylinder head 2 of cylinder barrel 3 and both sides is formed the cylinder body of sealing, and the cylinder head 2 that piston rod 1 passes both sides extend in the cylinder body, and the piston rod 1 in the cylinder body is provided with piston head 4, forms damping gap 26 between piston head 4 and the cylinder barrel 3, constitutes fluid main passage 17.Wherein, piston head 4 is locked on the piston rod 1, moves in the fundamental space of the damper of being made up of cylinder head 2 and cylinder barrel 3.Axle has guaranteed the straight path of piston rod 1 in movement process with 18 of guide rings, and axle has guaranteed the sealing of piston rod 1 in movement process with one-way sealing circle 19-20 and O RunddichtringO 23.
Being connected of damper and extraneous member mainly is to rely on end bearing 10 and connecting bolt 12.Produce additional bending moment under the eccentric force that is in use caused by alignment error for fear of damper and the eccentric load effect, between piston rod 1 and end bearing 10, adopt the bearing pin 8 with certain rotating function to connect.Can cause that when piston rod 1 is reciprocating in connecting sleeve 7 space changes in connecting sleeve 7 cavitys, thereby cause the change of air-flow, adopt silencing apparatus 25 to reduce this because the pneumatic noise that air flows and produces.The inwall both sides of cylinder barrel 3 are provided with the guide ring 11 to intermediate, inclined, and cylinder barrel 3 inwalls in the middle of the guide ring 11 cave in to the inside, make its wall thickness be slightly smaller than cylinder barrel 3 wall thickness in guide ring 11 outsides.
The key constructs of this damper is piston head 4.Piston head 4 is provided with the accumulation of energy ring 14 of twice groove shape, piston head 4 end faces in twice accumulation of energy ring 14 outsides are outside oblique having a down dip respectively, and constitute drainage channel 13 between the cylinder barrel 3, be respectively arranged with auxiliary flow passage 16 on the piston head 4 in twice accumulation of energy ring 14 outsides, auxiliary flow passage 16 is parallel with the inclined end face of the piston head 4 that constitutes drainage channel 13, piston head 4 both sides of auxiliary flow passage 16 bottoms are provided with positioning disk 15, and positioning disk 15 edges are provided with the angle of oblique outer incline.Piston head 4 moves right when piston such as the motion of Fig. 3 direction, fluid with respect to piston to left movement, when piston movement speed is low namely when the fluid flow by damping hole is the low fluid width by damping hole is equivalent to C-C1 width among Fig. 5, so thereby thereby because the less damper that can accelerating fluid guarantees of damping hole width also can consume vibrational energy producing certain damping force under the situation of low discharge under faint extraneous vibration.Fluid not only passes through from C-C1 when flow increases, and can pass through from drainage channel 13, has strengthened cross-sectional area thereby the width that is equivalent to the fluid passage is increased to C-C3 from C-C1, and damping gap 26 has also become the ring pyramidal space from simple annular gap.Damping force formula F=Cv from classics
aSo damping constant C value has taken place to have changed in the form in the formula because damping gap 26.Even at this moment the rate of flow of fluid by damping gap 26 increases to some extent, thereby because also can obviously not improving, the reduction damping force F of C value do not reduced damper excessive problem of damping force under fair speed.Thereby fluid not only makes awl mouthful openr from drainage channel 13 by the cross-sectional area that also can flow through auxiliary flow passage 16 and be equivalent to further to have strengthened fluid when damper speed further improves, thereby fluid is by the more smooth and easy C value that further reduced of piston section, when flow velocity V significantly increases, can keep damping force F slowly to increase, thereby under very high-speed situation, still guarantee stable exerting oneself at damper.
This damper also designs the circulation of cylinder body inner fluid in addition, and it is more smooth and easy that it is circulated under the situation of high speed flow, thereby the heat that is more prone to consume fluid is converted into thermal dissipation to the energy of input structure in air more efficiently.As shown in Figure 3, when piston moves right the relative piston of fluid to left movement.So because the existence of positioning disk 15 makes by the fluid directive cylinder barrel 3 of auxiliary flow passage 16 outflows because cylinder body is that good Heat Conduction Material is more prone to distribute the heat that fluid carries.Shown in fluid track 28 among Fig. 3, change directions by the fluid in the fluid of positioning disk drainage and the damping gap 26 of flowing through running into guide ring 11 backs, thereby make fluid to the inside cavity fluid mixing heat-shift low in calories in the fluid that makes near the high heat cylinder body and the cylinder body that flows.When the movement locus of piston fluid to left movement the time as shown in Figure 4.Wherein, the angle of slope of drainage channel 13 is 15 °～30 °, the degree of depth of accumulation of energy ring 14 is 1/15 of piston head 4 diameters, the diameter of auxiliary flow passage 16 is 1/2 of damping gap 26, guide ring 11 is 5 °～10 ° with the angle of cylinder barrel 3 axis, and the angle that the angle of oblique outer incline and positioning disk 15 axis form on the positioning disk 15 is 15 °～30 °.
In addition, this damper can utilize guide ring 11 as a damping device when the damper stroke is bigger, because the gap width of when motion damping mesopore is C-C1 in piston head is between two guide rings, the width in damping gap became C-C2 when piston head moved to the guide ring both sides when the stroke of piston is big.So because the narrow damping force that the passage of fluid becomes increases to some extent, prevent that the cylinder head 2 of piston head 4 and both sides from bumping thereby played the effect that cushions.
The present invention can be applied in seismic hardening and the transformation of building or need reduce high level, the superelevation layer structure that structure dynamic response under wind load increases comfort level.
Claims (7)
1. highly energy-consuming gap self-adaptive type viscous damper, comprise piston rod (1), cylinder head (2), cylinder barrel (3), piston head (4), the cylinder head (2) of described cylinder barrel (3) and both sides is formed the cylinder body of sealing, the cylinder head (2) that piston rod (1) passes both sides extend in the cylinder body, piston rod (1) in the cylinder body is provided with piston head (4), form damping gap (26) between piston head (4) and the cylinder barrel (3), constitute fluid main passage (17), the inwall both sides of described cylinder barrel (3) are provided with the guide ring (11) to intermediate, inclined, cylinder barrel (3) wall thickness in the middle of the guide ring (11) is slightly smaller than cylinder barrel (3) wall thickness in guide ring (11) outside, it is characterized in that: described piston head (4) is provided with the accumulation of energy ring (14) of twice groove shape, piston head (4) end face in twice accumulation of energy ring (14) outside is outside oblique having a down dip respectively, and constitute drainage channel (13) between the cylinder barrel (3), be respectively arranged with auxiliary flow passage (16) on the piston head (4) in twice accumulation of energy ring (14) outside, auxiliary flow passage (16) is parallel with the inclined end face of the piston head (4) that constitutes drainage channel (13), piston head (4) both sides of auxiliary flow passage (16) bottom are provided with positioning disk (15), and positioning disk (15) edge is provided with the angle of oblique outer incline.
2. a kind of highly energy-consuming according to claim 1 gap self-adaptive type viscous damper, it is characterized in that: the angle of slope of described drainage channel (13) is 15 °～30 °.
3. a kind of highly energy-consuming according to claim 1 gap self-adaptive type viscous damper, it is characterized in that: the degree of depth of described accumulation of energy ring (14) is 1/15 of piston head (4) diameter.
4. a kind of highly energy-consuming according to claim 1 gap self-adaptive type viscous damper, it is characterized in that: the diameter of described auxiliary flow passage (16) is 1/2 of damping gap (26).
5. a kind of highly energy-consuming according to claim 1 gap self-adaptive type viscous damper, it is characterized in that: described guide ring (11) is 5 °～10 ° with the angle of cylinder barrel (3) axis.
6. a kind of highly energy-consuming according to claim 1 gap self-adaptive type viscous damper is characterized in that: the angle that described positioning disk (15) is gone up oblique outer incline is 15 °～30 ° with the angle of positioning disk (15) axis formation.
7. a kind of highly energy-consuming according to claim 1 gap self-adaptive type viscous damper, it is characterized in that: cylinder head (2) arranged outside of piston rod (1) one end has connecting sleeve (7), and connecting sleeve (7) is provided with silencing apparatus (25); Adopt bearing pin (8) to be connected between piston rod (1) the other end and the end bearing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110409853 CN102518731B (en) | 2011-12-09 | 2011-12-09 | Gap self-adapting viscous damper with high energy consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110409853 CN102518731B (en) | 2011-12-09 | 2011-12-09 | Gap self-adapting viscous damper with high energy consumption |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518731A CN102518731A (en) | 2012-06-27 |
| CN102518731B true CN102518731B (en) | 2013-08-07 |
Family
ID=46289760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110409853 Expired - Fee Related CN102518731B (en) | 2011-12-09 | 2011-12-09 | Gap self-adapting viscous damper with high energy consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518731B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720124B (en) * | 2012-07-05 | 2014-04-02 | 大连理工大学 | Fluid viscous damper with working switch |
| CN104674968B (en) * | 2015-01-29 | 2016-10-05 | 苏州科技学院 | Integral type hole power consumption annular tuned mass damper |
| CN109306659B (en) * | 2018-09-25 | 2024-01-23 | 中铁二院工程集团有限责任公司 | Liquid viscous damper additionally provided with free micro-motion device |
| CN115163716A (en) * | 2022-07-08 | 2022-10-11 | 广州大学 | Viscous damper with variable friction damping |
| CN115370031A (en) * | 2022-09-08 | 2022-11-22 | 浙江大地钢结构有限公司 | Viscous fluid damper and steel structure system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821850A (en) * | 1986-04-04 | 1989-04-18 | Fichtel & Sachs Ag | Double-tube vibration damper |
| CN2223375Y (en) * | 1995-04-16 | 1996-03-27 | 浙江生力企业集团公司 | Continuously adjustable single hydraulic damper |
| CN2572130Y (en) * | 2002-09-20 | 2003-09-10 | 上海材料研究所 | Viscos damper |
| CN2716585Y (en) * | 2004-07-02 | 2005-08-10 | 北京工业大学 | Clearance variable viscous damper |
| EP1584836A1 (en) * | 2004-04-06 | 2005-10-12 | Samwoo Corporation | Hydraulic damper |
| US7628259B2 (en) * | 2004-11-08 | 2009-12-08 | Thyssenkrupp Bilstein Of America, Inc. | Fluid flow regulation of a vehicle shock absorber/damper |
| DE102008043564A1 (en) * | 2008-11-07 | 2010-05-20 | Zf Friedrichshafen Ag | Vibration damper, has inlet opening and valve disks comprising housing provided with connection channels for movement directions of piston rod, where connection channels are components of inlet opening and valve disks |
| CN201636259U (en) * | 2010-01-29 | 2010-11-17 | 宁波亚德客自动化工业有限公司 | Adjustable hydraulic damper |
| CN101903678A (en) * | 2007-12-19 | 2010-12-01 | 奥林斯赛车公司 | Shock absorber with dual piston |
| CN202418397U (en) * | 2011-12-09 | 2012-09-05 | 北京工业大学 | High-energy-consumption gap self-adaptive type viscous damper |
-
2011
- 2011-12-09 CN CN 201110409853 patent/CN102518731B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821850A (en) * | 1986-04-04 | 1989-04-18 | Fichtel & Sachs Ag | Double-tube vibration damper |
| CN2223375Y (en) * | 1995-04-16 | 1996-03-27 | 浙江生力企业集团公司 | Continuously adjustable single hydraulic damper |
| CN2572130Y (en) * | 2002-09-20 | 2003-09-10 | 上海材料研究所 | Viscos damper |
| EP1584836A1 (en) * | 2004-04-06 | 2005-10-12 | Samwoo Corporation | Hydraulic damper |
| CN2716585Y (en) * | 2004-07-02 | 2005-08-10 | 北京工业大学 | Clearance variable viscous damper |
| US7628259B2 (en) * | 2004-11-08 | 2009-12-08 | Thyssenkrupp Bilstein Of America, Inc. | Fluid flow regulation of a vehicle shock absorber/damper |
| CN101903678A (en) * | 2007-12-19 | 2010-12-01 | 奥林斯赛车公司 | Shock absorber with dual piston |
| DE102008043564A1 (en) * | 2008-11-07 | 2010-05-20 | Zf Friedrichshafen Ag | Vibration damper, has inlet opening and valve disks comprising housing provided with connection channels for movement directions of piston rod, where connection channels are components of inlet opening and valve disks |
| CN201636259U (en) * | 2010-01-29 | 2010-11-17 | 宁波亚德客自动化工业有限公司 | Adjustable hydraulic damper |
| CN202418397U (en) * | 2011-12-09 | 2012-09-05 | 北京工业大学 | High-energy-consumption gap self-adaptive type viscous damper |
Non-Patent Citations (2)
| Title |
|---|
| 变间隙粘滞阻尼器的性能分析;李英等;《震灾防御技术》;20060630;第1卷(第2期);第153－159页 * |
| 李英等.变间隙粘滞阻尼器的性能分析.《震灾防御技术》.2006,第1卷(第2期),第153－159页. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518731A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102518731B (en) | Gap self-adapting viscous damper with high energy consumption | |
| CN103266679B (en) | A kind of piston type particle damper | |
| CN102287016B (en) | Pendulum type friction wall | |
| CN107419816B (en) | Vibration damper for controlling three-dimensional translation and torsion direction thereof | |
| CN106989129A (en) | A kind of big displacement eddy current damper | |
| CN202418397U (en) | High-energy-consumption gap self-adaptive type viscous damper | |
| CN101782125A (en) | Advanced triple piston damper | |
| CN102606665A (en) | Viscous damper to passively adjust high energy consuming clearances | |
| CN105201097A (en) | Novel friction energy consumption damper | |
| CN206694483U (en) | A kind of big displacement eddy current damper | |
| CN103556748B (en) | Improve method and the device of building or antivibration capability of bridge | |
| CN105114513A (en) | Speed and displacement dual-lock pressure-limiting type viscous damper | |
| CN105821984B (en) | One kind extruding energy-consumption damper | |
| CN201166082Y (en) | Oil gas suspension system | |
| CN109594473A (en) | Cyclic annular On A Retrofitted Damper for inhibiting bridge stay cable to vibrate | |
| CN107989217B (en) | Spatial grid structure distributed built-in rod type collision damper | |
| CN211312916U (en) | Shear thickening fluid torsional damper with speed amplification effect | |
| CN204921827U (en) | Speed displacement twin -lock voltage limiting formula viscous damper | |
| CN104264858B (en) | Intersection reversion Self-resetting lead extrusion damper | |
| CN201056770Y (en) | Node energy-consumption device | |
| CN202577650U (en) | Rotary viscous fluid damper | |
| CN106286673B (en) | A kind of multi-state matching adaptive inversion gesture safeguard construction | |
| CN205475810U (en) | Multiply wood type shape memory alloy piezoelectricity friction damper | |
| CN209722738U (en) | A kind of On A Retrofitted Damper for inhibiting bridge stay cable to vibrate | |
| CN109057070B (en) | Symmetrical integrated double-cylinder viscous damper capable of preventing out-of-plane instability and application structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20131209 |