CN105673762A - Fluid damper for consuming energy by using vibration of elastomer - Google Patents
Fluid damper for consuming energy by using vibration of elastomer Download PDFInfo
- Publication number
- CN105673762A CN105673762A CN201610134681.XA CN201610134681A CN105673762A CN 105673762 A CN105673762 A CN 105673762A CN 201610134681 A CN201610134681 A CN 201610134681A CN 105673762 A CN105673762 A CN 105673762A
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- cylinder
- fluid
- guide rod
- fluid damper
- nut
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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
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
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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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a fluid damper for consuming energy by using vibration of an elastomer. The fluid damper comprises connecting flanges, a guide rod, a sealing body, a main cylinder barrel, a piston and a secondary cylinder barrel; the fluid damper is connected with a main structure through the connecting flanges at two ends; the connecting flange at one end is connected with the guide rod, and the connecting flange at the other end is connected with the secondary cylinder barrel through a first nut; the piston is mounted in the middle position of the main cylinder barrel through the guide rod; the main cylinder barrel and the secondary cylinder barrel are connected through a second nut; and the main cylinder barrel is closed through the sealing body, the first nut and the second nut, and is fully filled with a damping fluid inside. The fluid damper has such advantages as simple structure, low damping fluid requirement and nonlinear energy consumption characteristic, can supply higher damping to a civil engineering structure, reduces the dynamic response of the structure, and improves the safety of the structure.
Description
Technical field
The present invention is a kind of vibration absorber for engineering structure, can be used for civil engineering structure dynamic response under geological process or wind action and controls, is specifically related to a kind of fluid damper utilizing Vibration of Elastic Bodies to consume energy.
Background technology
Effects of Viscous Fluid Damper is a kind of passive dissipative damping device, it mainly includes cylinder body, the piston that is arranged in cylinder body, guide rod, the seal at cylinder body two ends and the viscous fluid that is filled in cylinder body. The piston of conventional Effects of Viscous Fluid Damper is provided with throttle orifice, and when piston produces relative motion with cylinder body, viscous fluid flows to the other end and then the viscous damping force of generation and velocity correlation from piston one end by throttle orifice, reaches the purpose of power consumption. Conventional Effects of Viscous Fluid Damper is commonly divided into the various ways such as single rod, double; two rod, hydraulic cylinder clearance-type according to its structure. At present, more published Effects of Viscous Fluid Damper majorities have employed the fluid principle along journey damping and small damping power consumption, such as engineering structure damping fluid bumper (ZL200219648.4), exerts oneself and quickly responds antivibrator (ZL200920045830.0) etc. greatly. These antivibrator majorities are linear viscous fluid antivibrator, and compared to this kind of antivibrator, nonlinear viscous fluid damper has power output relatively low when better energy dissipation capacity and high speed, also have more application in Practical Project.
Reaching the nonlinear purpose of antivibrator, generally have two kinds of thinkings: one is that damping material is improved, two is that the structure to antivibrator is designed. Former principally falls into the category of material science, it is mainly based upon latter thinking in engineering structure vibration damping field, as changed the spiral-hole type viscous damper (ZL200910027946.6) of damping hole inwall form, the Effects of Viscous Fluid Damper based on porous restriction (ZL201310190499.2) etc. of filler particles object in damping, in addition with the controllable viscous damper (ZL200910027945.1) of adjustable dampers parameter, the adjustable viscous damper of damping force (ZL200920045831.5) etc. But, these antivibrators be based on more fluid orifices throttling produce damping principle, utilize fluid motion dissipative structure transmission come vibrational energy, when actual design to the structure of aperture and make require higher.
This patent utilizes elongate resilient pipe easily to occur following current to buffeting and the principle of Vortex-excited vibration in working fluid, developing a kind of fluid damper utilizing Vibration of Elastic Bodies to consume energy, the design for Effects of Viscous Fluid Damper and other fluid dampers provides a kind of new damping energy dissipation mode.
Summary of the invention
It is an object of the invention to overcome prior art Problems existing, the fluid damper of a kind of vibration power consumption utilizing elongated cylindrical elastomer in working fluid is provided, for civil engineering structure passive energy dissipation under dynamic disaster effect, the invention provides a kind of power consumption principle being different from the power consumption of general Effects of Viscous Fluid Damper hole, the buffeting in working fluid of the elongated cylindrical elastomer and whirlpool is make use of to shake transmission vibrational energy, utilize the Damping work structural vibration energy of elastomer self, there is the features such as easy to process, stable performance, energy dissipation capacity be strong.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of fluid damper utilizing Vibration of Elastic Bodies to consume energy, including adpting flange, guide rod, seal, master cylinder cylinder, piston and attached cylinder barrel, described fluid damper is connected with agent structure by the described adpting flange at two ends, the described adpting flange of one end is connected with described guide rod, the described adpting flange of the other end is connected with described attached cylinder barrel by the first nut, described piston is installed on the centre position of described master cylinder cylinder by described guide rod, described master cylinder cylinder is connected by the second nut with described attached cylinder barrel, being closed by described seal and described first nut and described second nut of described master cylinder cylinder, inside fills damper fluid.
Further, described piston is provided with elongated resilient body.
Further, described guide rod is played guiding and airtight effect by described seal, sealed by the mode of sealing ring and oil sealing between described seal and described guide rod, and by seal with elastometic washer between described master cylinder cylinder, between described piston and described master cylinder cylinder, carry out oil sealing.
Further, described elongated resilient body is circular cross-section, is made up of waterproof case, stiffness layer and damping layer.
Further, described damper fluid is that its physical parameter can make described elongated resilient body that the liquid buffeted and whirlpool shakes occurs.
Beneficial effects of the present invention:
The present invention has the advantages such as simple structure, good damping result, damping energy dissipation mode be new. First, as a kind of dissipative damping device, the present invention can effectively control civil engineering structure response under dynamic load function, protects agent structure. Simultaneously, the violent oscillatory motion deformation produced during elongated resilient body relative motion in a liquid is utilized to carry out the energy in dispersing liquid, high damping material that energy efficiency is high (plumbous etc.) or high damping structure (oscillator) is made to instead of liquid self power consumption of poor efficiency, the damping material making fluid damper selects to be no longer limited to the contour cost liquid of high-performance viscous fluid, also provide new thinking for acquisition a nonlinear fluid dray device simultaneously, add the design alternative of fluid damper.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of the fluid damper that the present invention utilizes Vibration of Elastic Bodies to consume energy;
Fig. 2 is the structure vertical section organigram of the fluid damper that the present invention utilizes Vibration of Elastic Bodies to consume energy;
Fig. 3 (a) utilizes the first structural representation of 1-1 section of fluid damper that Vibration of Elastic Bodies consumes energy for the present invention;
Fig. 3 (b) utilizes 1-1 section the second structural representation of fluid damper that Vibration of Elastic Bodies consumes energy for the present invention;
Fig. 4 is the elongated resilient body generalized section of the fluid damper that the present invention utilizes Vibration of Elastic Bodies to consume energy.
Number in the figure illustrates: 1, adpting flange, 2, guide rod, and the 31, first nut, the 32, second nut, 4, seal, 5, master cylinder cylinder, 6, piston, 7, elongated resilient body, 8, attached cylinder barrel, 9, damper fluid.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is described in detail.
With reference to shown in Fig. 1-Fig. 4, a kind of fluid damper utilizing Vibration of Elastic Bodies to consume energy, including adpting flange 1, guide rod 2, seal 4, master cylinder cylinder 5, piston 6 and attached cylinder barrel 8, described fluid damper is connected with agent structure by the described adpting flange 1 at two ends, the described adpting flange 1 of one end is connected with described guide rod 2, the described adpting flange 1 of the other end is connected with described attached cylinder barrel 8 by the first nut 31, described piston 6 is installed on the centre position of described master cylinder cylinder 5 by described guide rod 2, described master cylinder cylinder 5 is connected by the second nut 32 with described attached cylinder barrel 8, being closed by described seal 4 and described first nut 31 and described second nut 32 of described master cylinder cylinder 5, inside fills damper fluid 9.
Further, described piston 6 is provided with elongated resilient body 7.
Further, described guide rod 2 is played guiding and airtight effect by described seal 4, sealed by the mode of sealing ring and oil sealing between described seal 4 and described guide rod 2, and by seal with elastometic washer between described master cylinder cylinder 5, between described piston 6 and described master cylinder cylinder 5, carry out oil sealing.
Further, described elongated resilient body 7 is circular cross-section, by waterproof case 71, stiffness layer 72 and damping layer 73 form, , described waterproof case 71 is positioned at described elongated resilient body 7 outermost, for protecting described stiffness layer 72 and damping layer 73 normal operation in a liquid, and the exterior cylindrical shape formed provides one of condition of Vortex-excited vibration generation, when the described piston 6 at described elongated resilient body 7 place moves in described master cylinder cylinder 5, owing to the damper fluid 9 in described master cylinder cylinder 5 exists, described elongated resilient body 7 is made to occur by buffeting and whirlpool shakes the significantly vibration caused, cause that kinergety is delivered to described elongated resilient body 7, and the damping of dissipation energy is provided for described elongated resilient body 7 by described damping layer 73, can be selected for lead, the Energy dissipating material such as high-damping rubber, described stiffness layer 72 provides rigidity for described elongated resilient body 7, steel can be selected as required, aluminium etc., described elongated resilient body 7 and the connection of described piston 6 according to rigidity requirement be designed as hinged, just connect or semi-rigid joint, by changing the length of described elongated resilient body 7, sectional dimension, described stiffness layer 72, described damping layer 73, type of attachment, and the kind of described damper fluid 9, it is possible to regulate the performance parameter of this fluid damper.
Further, described damper fluid 9 can make described elongated resilient body 7 that the liquid buffeted and whirlpool shakes occurs for its physical parameter.
Preferably, described master cylinder cylinder 5 adopts high-strength alloy steel seamless steel tube, and its inner surface is adopted cold-extrusion technology, strengthens wearability, it is prevented that produced leakage by piston plucking or scuffing in the course of the work.
Further, described guide rod 2 guide rod adopts the solid guide rod of high-strength alloy, outer surface hard chrome plating, strengthens its intensity, wearability and resistance to corrosion, it is to avoid the abrasion on guide rod surface, is conducive to improving the sealing effectiveness of antivibrator.
Preferably, elongated resilient body 7 is circular cross-section,
Principles of the invention:
The vibration of agent structure causes the change of two ends adpting flange 1 relative position being connected to agent structure, thus causing that the piston 6 being connected with guide rod 2 moves in master cylinder cylinder 5, therefore elongated resilient body 7 is followed piston 6 and is moved in a fluid, thus having caused the buffeting of elongated resilient body 7.Meanwhile, owing to structural vibration is often formed by stacking by the vibration of some major frequency components, and the vibration of certain frequency content plays a leading role time most, the relative motion causing piston 6 and fluid is maintained in certain particular speed range, such that it is able to bring out the Vortex-excited vibration of the elongated resilient body 7 of particular design. The form of Vibration of Elastic Bodies is brought out by both; the energy of structural vibration is transmitted and gives elongated resilient body 7; and by the significantly deformation dissipation energy of damping layer 73 in elastomer; and damping force is provided; suppress the vibratory response of agent structure with this, protect agent structure safety under the dynamic disaster effect such as earthquake, wind load.
Specific embodiment of the invention step:
(1) structure is analyzed, calculates required vibration absorber parameter, determine therefrom that the design parameters such as fluid damper cross sectional shape, diameter, the piston degree of depth, elongated resilient body size and quantity.
(2) processing the damping layer 73 of elongated, cylindrical, overlap or parcel stiffness layer 72 outside it, finally waterproof case 71 on the outer set of stiffness layer 72, is assembled into elongated resilient body; By machining piston 6 shown in Fig. 3, and elongated resilient body is installed in piston 6 by the connected mode wanted according to design.
(3) damper piston 6 is arranged on the centre position of guide rod 2; Being respectively provided with seal 4 between guide rod 2 two ends and master cylinder cylinder 5 a set of, seal 4 is annular, and one end is stuck on master cylinder cylinder 5 by draw-in groove, and is fixed with master cylinder cylinder 5 by nut 3; Sealed by the mode of sealing ring and oil sealing between seal 4 and guide rod 2, and pass through seal with elastometic washer between master cylinder cylinder 5; Oil sealing is carried out between piston 6 and master cylinder cylinder 5.
(4) it is connected by nut 3 between master cylinder cylinder 5 with attached cylinder barrel 8, pours into damper fluid 9 and seal; Finally, one end adpting flange 1 is directly connected with guide rod, and other end adpting flange 1 is connected with attached cylinder barrel 8 by nut 3.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (5)
1. the fluid damper utilizing Vibration of Elastic Bodies to consume energy, it is characterized in that, including adpting flange (1), guide rod (2), seal (4), master cylinder cylinder (5), piston (6) and attached cylinder barrel (8), described fluid damper is connected with agent structure by the described adpting flange (1) at two ends, the described adpting flange (1) of one end is connected with described guide rod (2), the described adpting flange (1) of the other end is connected with described attached cylinder barrel (8) by the first nut (31), described piston (6) is installed on the centre position of described master cylinder cylinder (5) by described guide rod (2), described master cylinder cylinder (5) is connected by the second nut (32) with described attached cylinder barrel (8), being closed by described seal (4) and described first nut (31) and described second nut (32) of described master cylinder cylinder (5), inside fills damper fluid (9).
2. a kind of fluid damper utilizing Vibration of Elastic Bodies to consume energy according to claim 1, it is characterised in that be provided with elongated resilient body (7) in described piston (6).
3. a kind of fluid damper utilizing Vibration of Elastic Bodies to consume energy according to claim 1, it is characterized in that, described guide rod (2) is played guiding and airtight effect by described seal (4), sealed by the mode of sealing ring and oil sealing between described seal (4) and described guide rod (2), and by seal with elastometic washer between described master cylinder cylinder (5), between described piston (6) and described master cylinder cylinder (5), carry out oil sealing.
4. the fluid damper utilizing Vibration of Elastic Bodies to consume energy according to claim 2, it is characterized in that, described elongated resilient body (7) is circular cross-section, is made up of waterproof case (71), stiffness layer (72) and damping layer (73).
5. the fluid damper utilizing Vibration of Elastic Bodies to consume energy according to claim 1, it is characterised in that described damper fluid (9) can make elongated resilient body (7) that the liquid buffeted and whirlpool shakes occurs for its physical parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134681.XA CN105673762B (en) | 2016-03-10 | 2016-03-10 | A kind of fluid damper to be consumed energy using Vibration of Elastic Bodies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134681.XA CN105673762B (en) | 2016-03-10 | 2016-03-10 | A kind of fluid damper to be consumed energy using Vibration of Elastic Bodies |
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| CN105673762A true CN105673762A (en) | 2016-06-15 |
| CN105673762B CN105673762B (en) | 2017-12-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948638A (en) * | 2017-04-13 | 2017-07-14 | 同济大学 | Set up the power consumption coupling beam of liquid inertia mass damper |
| CN110042941A (en) * | 2019-03-19 | 2019-07-23 | 苏州科技大学 | A kind of elbow Vibration of Elastic Bodies energy consumption rotation fluid damping node |
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| JPH03129136A (en) * | 1989-10-16 | 1991-06-03 | Sanwa Tekki Corp | Braking device |
| CN1158155A (en) * | 1995-08-04 | 1997-08-27 | 奥依列斯工业株式会社 | Vibration isolation device |
| CN2572130Y (en) * | 2002-09-20 | 2003-09-10 | 上海材料研究所 | Viscos damper |
| JP2006316978A (en) * | 2005-05-16 | 2006-11-24 | Yokohama Rubber Co Ltd:The | Composite viscous elastic damper |
| CN101576139A (en) * | 2009-05-13 | 2009-11-11 | 东南大学 | Controllable viscous damper |
| CN104781575A (en) * | 2012-09-03 | 2015-07-15 | 奥依列斯工业株式会社 | Seismic base isolation device |
| CN205446521U (en) * | 2016-03-10 | 2016-08-10 | 苏州科技学院 | Utilize power -wasting fluid damping ware of elastomer vibration |
-
2016
- 2016-03-10 CN CN201610134681.XA patent/CN105673762B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03129136A (en) * | 1989-10-16 | 1991-06-03 | Sanwa Tekki Corp | Braking device |
| CN1158155A (en) * | 1995-08-04 | 1997-08-27 | 奥依列斯工业株式会社 | Vibration isolation device |
| CN2572130Y (en) * | 2002-09-20 | 2003-09-10 | 上海材料研究所 | Viscos damper |
| JP2006316978A (en) * | 2005-05-16 | 2006-11-24 | Yokohama Rubber Co Ltd:The | Composite viscous elastic damper |
| CN101576139A (en) * | 2009-05-13 | 2009-11-11 | 东南大学 | Controllable viscous damper |
| CN104781575A (en) * | 2012-09-03 | 2015-07-15 | 奥依列斯工业株式会社 | Seismic base isolation device |
| CN205446521U (en) * | 2016-03-10 | 2016-08-10 | 苏州科技学院 | Utilize power -wasting fluid damping ware of elastomer vibration |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948638A (en) * | 2017-04-13 | 2017-07-14 | 同济大学 | Set up the power consumption coupling beam of liquid inertia mass damper |
| CN110042941A (en) * | 2019-03-19 | 2019-07-23 | 苏州科技大学 | A kind of elbow Vibration of Elastic Bodies energy consumption rotation fluid damping node |
| CN110042941B (en) * | 2019-03-19 | 2024-04-16 | 苏州科技大学 | Elbow-shaped elastomer vibration energy-dissipation rotary fluid damping node |
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| CN105673762B (en) | 2017-12-26 |
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