CN105220791A - Multidimensional dual adjustable formula damping control device - Google Patents
Multidimensional dual adjustable formula damping control device Download PDFInfo
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- CN105220791A CN105220791A CN201510795676.9A CN201510795676A CN105220791A CN 105220791 A CN105220791 A CN 105220791A CN 201510795676 A CN201510795676 A CN 201510795676A CN 105220791 A CN105220791 A CN 105220791A
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Abstract
Multidimensional dual adjustable formula damping control device, its structure comprises base plate, elastomeric element I, elastomeric element II, movable part and quality pendulum, elastomeric element I top arranges support bar, and elastomeric element I drives support bar to move in Z-direction, to realize the vibration damping of Z-direction along Z-direction distortion; Elastomeric element II and movable part are positioned at the top of elastomeric element I, and movable part moves in X-direction with the distortion of elastomeric element II, to realize the vibration damping of X-direction; Quality pendulum is arranged on the centre of movable part soffit, and quality pendulum swings in Y direction, to realize the vibration damping of Y direction.Being provided with liquid in the mass of described quality pendulum makes quality put formation Tuned Liquid, thus realizes double damping.The present invention can the vibratory response of dual reduction structure under three up shakes or the load action such as wind, have principle simple, be convenient to install and cost performance high.
Description
Technical field
The present invention relates to building structure field, specifically a kind of multidimensional dual adjustable formula damping control device, be mainly used in and control across the vibration damping of, the dependency structure such as towering greatly.
Background technology
In recent years, when violent earthquake and disaster caused by a windstorm cause damage more and more serious, people more and more recognize that traditional structure design is to the limitation of the natural calamity defensive ability/resistance ability of unknown intensity and inalterability (as the uncertainty of seismic fortification intensity and diastrous weather exceed historical statistics etc.).Structural vibration control technology changes the thinking of the direct resisting nature disaster effect of traditional employing bearing structural system, and Bian reduces the disaster response of agent structure with nonweight-bearing structure control device or component, improve the ability of engineering structures resisting nature disaster effect, engineering structures is made to damage less under the effect of disaster or not damage, and made it meet design requirement completely may, be that civil engineering structure is prevented and reduced natural disasters the new change of design philosophy.
Current, because passive control device does not need external energy to provide control, and control procedure does not rely on structural response and external interference information, simple structure, cost be low, be easy to the plurality of advantages such as maintenance, apply more in Practical Project, the passive damping control device of application at present mainly contains following tuned mass damper (TMD), Suspended mass pendulum (SMP) and Tuned Liquid (TLD).
Tuned mass damper is a kind of passive control system be made up of spring, damper and mass, its operating principle is: structure produces vibration under external drive, Tuned mass damper system is driven to vibrate together, the inertia force that Tuned mass damper system relative motion produces reacts in structure, realizes the vibration isolation to structure by this inertia force tuning.
Suspended mass pendulum structural vibration reduction system is quality swinging hanging structurally, when under earthquake or wind action, structure produces horizontal vibration to system, and the vibration of band movable pendulum; The inertia force that pendular oscillation produces then reacts on structure itself, just creates damping effect when this inertia force is contrary with the motion of structure itself, thus reaches the object of control structure vibration.
The operating principle of Tuned Liquid: structural vibration drives liquid sloshing generation and the rightabout flowing pressure of structure motion (being equivalent to damping force) to reach the object reducing agent structure and vibrate.
At present; for applying the more and more of vibration absorber in Practical Project; as: Taipei 101; Global Finance mansion, Shanghai etc.; but the most only or both direction some for structure of various forms of shock absorber carries out vibration isolation; and consider the complexity of structural vibration, such vibration control apparatus well cannot meet the requirement of vibration isolation.
Summary of the invention
For the problems referred to above; the object of the present invention is to provide a kind of multidimensional dual adjustable formula damping control device; this device can reduce the vibratory response of tall and slender structure (especially tower structure form) under the upper load action such as earthquake or wind of left and right directions (X-axis), fore-and-aft direction (Y-axis) and above-below direction (Z axis), protection agent structure.
The present invention solves the technical scheme that its technical problem takes: multidimensional dual adjustable formula damping control device, and comprise base plate, elastomeric element I, elastomeric element II, movable part and quality pendulum, base plate is for carrying whole device.
The bottom of elastomeric element I is fixedly connected on base plate, and elastomeric element I top arranges support bar, and elastomeric element I drives support bar to move in Z-direction, to realize the vibration damping of Z-direction along Z-direction distortion.
Elastomeric element II and movable part are positioned at the top of elastomeric element I, and the both sides being arranged in movable part of elastomeric element II symmetry, movable part moves in X-direction with the distortion of elastomeric element II, to realize the vibration damping of X-direction.
Quality pendulum is arranged on the centre of movable part soffit, and described quality pendulum is unidirectional pendulum and swings, to realize the vibration damping of Y direction in Y direction.
By changing the rigidity of elastomeric element I and elastomeric element II, the length of quality pendulum, the frequency of vibration absorber can be regulated.
Further technical scheme is: described quality pendulum comprises swing arm and mass, and the top of swing arm is hingedly connected on movable part by unidirectional, the bottom quality of connection block of swing arm; Being provided with liquid in described mass makes quality put formation Tuned Liquid, thus realizes double damping.
Further technical scheme is: described mass is the curved pipe of closed at both ends, and the cavity of curved pipe inside is built with water.Mass is set to curved pipe, and when water rocks in curved pipe, its upper surface can be limited to occur different height, makes it occur scrambling, avoids resonance effects further, strengthens effectiveness in vibration suppression.Meanwhile, the liquid in mass adopts water, and water is good fluidity not only, and density is suitable, and nonpoisonous and tasteless, can not produce pollution.
Further technical scheme is: described elastomeric element I comprises four Vertical Springs, four rectangular arrangements of Vertical Spring, and the outside of four Vertical Springs is equipped with sleeve respectively and is vertically out of shape to make it; The bottom of Vertical Spring and sleeve is all fixedly connected on base plate, and the top of Vertical Spring connects a cover plate, and cover plate moves in sleeve with the distortion of Vertical Spring, and described support bar is longitudinal rod and is connected to the top of cover plate.
The rectangular arrangement of elastomeric element I, is convenient to elastomeric element II and movable part setting above it, simplifies the structure of whole device.
Further technical scheme is: described elastomeric element II and movable part are arranged on a rectangular frame, rectangular frame is arranged on the top of described support bar, rectangular frame comprises two long side rod parts and two minor face rod members, and four angles place of rectangular frame is fixedly connected with the top of four support bars respectively.
An overall framework is formed after rectangular frame is connected with four support bars of elastomeric element I, there is certain stability of foundation, simultaneously because the rigidity of each Vertical Spring is consistent in elastomeric element I, rectangular frame generation deflection can be avoided, thus ensure that elastomeric element II carries out vibration isolation in X-direction.
Further technical scheme is: described movable part comprises two sleeve pipes and a connecting rod, and two sleeve pipes respectively activity are nested with on two long side rod parts, and the two ends of connecting rod are connected with the centre of two sleeve pipes respectively.The inwall of sleeve pipe and the sidewall of long side rod part are shiny surface, and the sleeve pipe of movable part is nested with on the long side rod part of rectangular frame, can ensure that movable part moves along the long side rod part of rectangular frame, avoid it to depart from X-direction.
Further technical scheme is: described elastomeric element II comprises four horizontal springs and two fluid viscous damper, the both sides being divided into movable part of horizontal spring and fluid viscous damper symmetry, make movable part move along long side rod part along with the distortion of horizontal spring and fluid viscous damper.
Further technical scheme is: described horizontal spring is nested with on long side rod part, and one end of horizontal spring is connected with the end of long side rod part, and the other end of horizontal spring is connected with the end of described sleeve pipe; Described fluid viscous damper one end is connected to the middle part of minor face rod member, and the other end of fluid viscous damper is connected to the middle part of connecting rod.
Horizontal spring is nested with on long side rod part, and fluid viscous damper is connected between minor face rod member and connecting rod simultaneously, ensure that the deformation direction of horizontal spring and fluid viscous damper is along X-direction.
Further technical scheme is: described long limit bar cross section is for circular, and described minor face bar cross section is rectangle.The cross section of long side rod part is circular, just with its formation smooth surface and with the coordinating of horizontal spring and sleeve pipe; The cross section of minor face rod member is rectangle, is convenient to the installation of fluid viscous damper.
Further technical scheme is: the top of described base plate is provided with casing and is covered by whole device.Casing plays a protective role to device, and avoiding device is subject to erosion and the damage of external force.
The invention has the beneficial effects as follows:
1, this device is when earthquake or wind action; along with the increase of structure stress and distortion; the energy-dissipating devices such as elastomeric element I, elastomeric element II and/or quality pendulum take the lead in producing larger damping; the energy of a large amount of consumption input structure; thus make agent structure avoid entering obvious inelastic state and the dynamic response of rapid attenuating structure, protection agent structure.
2, being provided with liquid in the mass that quality is put makes quality put formation Tuned Liquid, thus realize double damping, because liquid has mobility, when shaking, liquid flows to all directions because of the excitation with outside, the double damping that can realize in multiple directions controls, good damping result.
3, the vibration damping in multiple directions controls to share a quality, and namely the mass of quality pendulum, alleviates the burden of structure effectively.
4, by the liquid level of liquid and the quality of mass in the length of swing arm in the rigidity of spring in change elastomeric element I and elastomeric element II, quality pendulum, mass, the frequency of vibration absorber can be regulated, applied widely.
5, the principle that vibration damping controls belongs to Passive Control, is convenient to processing, without the need to energy input, easily to realize and safety is high.
6, the two-way and vertical response of structure level can be reduced, avoid resonance effects, the safety of sufficient guarantee building structure, be not only applicable to the vibration damping of new building structure, also the vibration damping being applicable to existing structures controls, be applicable to greatly across, the building structure that towering, build is complicated and safety requirements is high, good economic benefit and social benefit can be produced.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the plan structure schematic diagram of the embodiment of the present invention.
In figure: 1 base plate, 2 Vertical Springs, 3 sleeves, 4 cover plates, 5 support bars, 6 unidirectional hinges, 7 swing arms, 8 masses, 9 horizontal springs, 10 sleeve pipes, 11 connecting rods, 12 minor face rod members, 13 long side rod parts, 14 fluid viscous damper, 15 casings.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described:
As shown in Figure 1 and Figure 2.Multidimensional dual adjustable formula damping control device, comprise the base plate 1 of rectangle, base plate 1 is provided with four columniform sleeves 3, the rectangular arrangement of four columniform sleeves 3, being provided with in sleeve 3 can along the Vertical Spring 2 of short transverse distortion, be provided with the circular cover 4 that can move up and down along sleeve 3 on the top of Vertical Spring 2, cover plate 4 top connects support bar 5, and Vertical Spring 2, sleeve 3, cover plate 4 and support bar 5 form elastomeric element I.
The top of support bar 5 is provided with rectangular frame, and rectangular frame comprises two long side rod parts 13 and two minor face rod members 12, and four angles place of rectangular frame is fixedly connected with the top of four support bars 5 respectively.Described long side rod part 13 cross section is circular, and described minor face rod member 12 cross section is rectangle.
On two long side rod parts 13, movable sleeve is equipped with sleeve pipe 10 respectively, is connected with connecting rod 11 between two sleeve pipes 10, and the two ends of connecting rod 11 are connected with the centre of two sleeve pipes 10 respectively, and sleeve pipe 10 and connecting rod 11 form the movable part of " work " font.
The both sides of " work " font movable part are elastomeric element II, elastomeric element II comprises four horizontal springs 9 and two fluid viscous damper 14, the both sides being divided into movable part of horizontal spring 9 and fluid viscous damper 14 symmetry, make movable part move along long side rod part along with the distortion of horizontal spring 9 and fluid viscous damper 14.
Horizontal spring 9 is nested with on long side rod part 13, and one end of horizontal spring 9 is connected with the end of long side rod part 13, and the other end of horizontal spring 9 is connected with the end of described sleeve pipe 10; Described fluid viscous damper 14 one end is connected to the middle part of minor face rod member 12, and the other end of fluid viscous damper 14 is connected to the middle part of connecting rod 11.
A quality pendulum is connected in the below of connecting rod 11, quality pendulum comprises swing arm 7 and mass 8, and the top of swing arm 7 is connected on connecting rod 11 by unidirectional hinge 6, the bottom quality of connection block 8 of swing arm 7, mass 8 is the curved pipe of closed at both ends, and the cavity of curved pipe inside is built with water.
Described sleeve 3 welds with base plate 1, its inner wall smooth.
Described Vertical Spring 2 and base plate 1 consolidation, and diameter is slightly less than sleeve 3 diameter.
Described cover plate 4 is fixedly connected with upper support bar 5 and bottom Vertical Spring 2, and diameter is slightly less than sleeve 3 diameter, can slide up and down.
Described sleeve pipe 10 inner wall smooth, farthest can slide along the direction of the long side rod part 13 of rectangular frame.
The top of described base plate 1 is provided with casing 15 and is covered by whole device.
In the rigidity of spring, the length of swing arm 7 and mass 8, the liquid level design of water ensures that the frequency of damping control device of the present invention is consistent with the vibration frequency of structure.The effect of sleeve 3 only allows support bar about 5 compression Vertical Spring 2 to move, and then realizes vertical damping effect.
The present invention is by the swing arm 7 of unidirectional hinge 6 successively rigidity and mass 8, and when there is vertical motion, mass 8 can not occur vertically to beat, and ensures that the vibration of other directions is independent of each other with vertical motion.
For ease of the understanding of the present invention, below in conjunction with its operating principle, the invention will be further described:
This device is arranged on the appropriate location of major structure of construction, when major structure of construction is subject to the load action such as earthquake or wind, vibratory response can occurs, and then drive this device to vibrate together.Due to the vibration more complicated of major structure of construction, often the vibration of multiple directions exists simultaneously, now, support bar 5 can compress Vertical Spring 2 up and down and move under effect of vibration, " work " font movable part can move left and right elasticity of compression parts II and move under the effect of vibration, quality pendulum can swing at fore-and-aft direction, drives the water in mass 8 to rock.
The inertia force that support bar 5 motion produces reacts on major structure of construction, and the vibration damping realizing above-below direction (Z-direction) controls; The inertia force that the motion of " work " font movable part produces reacts on major structure of construction, and the vibration damping realizing left and right directions (X-direction) controls; Quality pendulum swings the inertia force produced and reacts on major structure of construction, and the vibration damping realizing fore-and-aft direction (Y direction) controls.
Meanwhile, the water in mass 8 produces and rocks under the effect of vibration, and due to the flow behavior of water, water can flow to multiple directions, and the double damping that can realize in multiple directions controls, good damping result.
By the liquid level of liquid in the length of swing arm 7 in the rigidity of spring in change elastomeric element I and elastomeric element II, quality pendulum and mass 8, the frequency of vibration absorber can be regulated, applied widely.
The shape of mass of the present invention is not limited to the curved pipe described in embodiment, can adopt the hollow cavity of other shape; The liquid arranged in mass of the present invention is also not limited to the water described in embodiment, can adopt other good fluidity, nonpoisonous and tasteless liquid; Quality pendulum of the present invention is also not limited to unidirectional hinge with the connected mode of movable part, the unidirectional swing can put to realize quality by the stopping means arranging other.
The foregoing is only preferred embodiment of the present invention; be not whole embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Except technical characteristic described in manual, all the other technical characteristics are those skilled in the art's known technology, and in order to outstanding innovative characteristics of the present invention, above-mentioned technical characteristic does not repeat them here.
Claims (10)
1. multidimensional dual adjustable formula damping control device, is characterized in that, comprises base plate, elastomeric element I, elastomeric element II, movable part and quality pendulum,
Base plate is for carrying whole device;
The bottom of elastomeric element I is fixedly connected on base plate, and elastomeric element I top arranges support bar, and elastomeric element I drives support bar to move in Z-direction, to realize the vibration damping of Z-direction along Z-direction distortion;
Elastomeric element II and movable part are positioned at the top of elastomeric element I, the both sides being arranged in movable part of elastomeric element II symmetry, and movable part moves in X-direction with the distortion of elastomeric element II, to realize the vibration damping of X-direction;
Quality pendulum is arranged on the centre of movable part soffit, and described quality pendulum is unidirectional pendulum and swings, to realize the vibration damping of Y direction in Y direction.
2. multidimensional dual adjustable formula damping control device according to claim 1, is characterized in that, described quality pendulum comprises swing arm and mass, and the top of swing arm is hingedly connected on movable part by unidirectional, the bottom quality of connection block of swing arm; Being provided with liquid in described mass makes quality put formation Tuned Liquid, thus realizes double damping.
3. multidimensional dual adjustable formula damping control device according to claim 2, it is characterized in that, described mass is the curved pipe of closed at both ends, and the cavity of curved pipe inside is built with water.
4. multidimensional dual adjustable formula damping control device according to claim 1, it is characterized in that, described elastomeric element I comprises four Vertical Springs, four rectangular arrangements of Vertical Spring, and the outside of four Vertical Springs is equipped with sleeve respectively and is vertically out of shape to make it; The bottom of Vertical Spring and sleeve is all fixedly connected on base plate, and the top of Vertical Spring connects a cover plate, and cover plate moves in sleeve with the distortion of Vertical Spring, and described support bar is longitudinal rod and is connected to the top of cover plate.
5. multidimensional dual adjustable formula damping control device according to claim 4, it is characterized in that, described elastomeric element II and movable part are arranged on a rectangular frame, rectangular frame is arranged on the top of described support bar, rectangular frame comprises two long side rod parts and two minor face rod members, and four angles place of rectangular frame is fixedly connected with the top of four support bars respectively.
6. multidimensional dual adjustable formula damping control device according to claim 5, it is characterized in that, described movable part comprises two sleeve pipes and a connecting rod, and two sleeve pipes respectively activity are nested with on two long side rod parts, and the two ends of connecting rod are connected with the centre of two sleeve pipes respectively.
7. multidimensional dual adjustable formula damping control device according to claim 6, it is characterized in that, described elastomeric element II comprises four horizontal springs and two fluid viscous damper, the both sides being divided into movable part of horizontal spring and fluid viscous damper symmetry, make movable part move along long side rod part along with the distortion of horizontal spring and fluid viscous damper.
8. multidimensional dual adjustable formula damping control device according to claim 7, it is characterized in that, described horizontal spring is nested with on long side rod part, and one end of horizontal spring is connected with the end of long side rod part, and the other end of horizontal spring is connected with the end of described sleeve pipe; Described fluid viscous damper one end is connected to the middle part of minor face rod member, and the other end of fluid viscous damper is connected to the middle part of connecting rod.
9. multidimensional dual adjustable formula damping control device according to claim 5, is characterized in that, described long limit bar cross section is circular, and described minor face bar cross section is rectangle.
10. multidimensional dual adjustable formula damping control device according to claim 1, is characterized in that, the top of described base plate is provided with casing and is covered by whole device.
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| CN106320558A (en) * | 2016-10-26 | 2017-01-11 | 山东大学 | Mixed type multi-dimensional and multi-level energy dissipation device |
| CN107268822A (en) * | 2017-06-19 | 2017-10-20 | 同济大学 | A kind of current vortex liquid condenser |
| CN107355022A (en) * | 2017-07-18 | 2017-11-17 | 大连理工大学 | A kind of two-way suspension-mass pendulum vibration insulating system |
| CN108657412A (en) * | 2017-03-31 | 2018-10-16 | 成都天府新区光启未来技术研究院 | Damping unit and aerostatics for aerostatics |
| CN110725557A (en) * | 2019-09-19 | 2020-01-24 | 西安工程大学 | SMA (shape memory alloy) composite suspended pendulum damping device for historical buildings |
| CN111028668A (en) * | 2019-12-31 | 2020-04-17 | 重庆城市管理职业学院 | Tourist attraction is with propaganda device |
| CN113494204A (en) * | 2020-10-26 | 2021-10-12 | 长江师范学院 | Building shock attenuation wall body |
| CN114370109A (en) * | 2022-01-17 | 2022-04-19 | 武汉轻工大学 | Lateral force resisting structure for building |
| CN115467196A (en) * | 2022-03-21 | 2022-12-13 | 北京九州一轨环境科技股份有限公司 | Multiple tuned mass damping device suitable for vibration damping track |
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