CN209703743U - A kind of multidimensional vibration reduction damper based on Stewart mechanism - Google Patents
A kind of multidimensional vibration reduction damper based on Stewart mechanism Download PDFInfo
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- CN209703743U CN209703743U CN201822104917.2U CN201822104917U CN209703743U CN 209703743 U CN209703743 U CN 209703743U CN 201822104917 U CN201822104917 U CN 201822104917U CN 209703743 U CN209703743 U CN 209703743U
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- ring flange
- connection otic
- damping element
- vibration reduction
- universal shaft
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Abstract
The utility model discloses a kind of multidimensional vibration reduction dampers based on Stewart mechanism, including ring flange, connection otic placode and damping element, ring flange is provided with two panels, and there are three connection otic placodes for arrangement setting triangular in shape on every ring flange, and connection otic placode is equidistant away from the axial line of ring flange；Wherein each connection otic placode on a piece of ring flange is connect by two damping elements with two connection otic placodes on other a piece of ring flange, damping element is from left to right successively made of the first crossed universal shaft, first connecting rod, piston rod, damping element cylinder body, the second connecting rod and the second crossed universal shaft, piston rod is telescopic to be movably connected on damping element cylinder body, and the first crossed universal shaft and the second crossed universal shaft pass through bearing and connect with connection otic placode.The utility model realizes multidimensional vibration reduction using less damping element, makes it that can also bear the multidimensional internal force of Complicated Loads generation while providing high additional damping, achievees the effect that carry out multidimensional vibration reduction to large-span space structure.
Description
Technical field
The utility model belongs to antivibration area, and in particular to a kind of high-performance multidimensional based on Stewart mechanism subtracts
Shake damper, can be applied to the control of large-span space structure vibration damping.
Background technique
With the raising increasingly of science and technology maked rapid progress and the people need good life, people are to building span
More stringent requirements are proposed；In this context, large-span space structure is able to fast development, and becomes the heat of structural engineering field
Point.Large-span space structure the earthquake, wind shake the effects of under structural dynamic response it is strong.The power for how reducing structure is rung
It answers, improve the antidetonation of structure, wind loading rating and combats a natural disaster performance, become current urgent problem to be solved.The side of traditional antidetonation
Method is to improve structural behaviour, and wind shake, rain vibration, ambient vibration and geological process etc. are absorbed by the energy dissipation capacity of structure itself
Generated energy；This method will affect space and the requirement of building, and lack capacity of self-regulation, in medium and small shake
And the non-lower effect that can also play the role of certain reduction structural dynamic response of high wind effect, but under macroseism or high wind,
It will necessarily cause the damage or destruction of structure division component.It therefore, is the defect for overcoming traditional anti-shock methods, structural vibration control
Technology is gradually risen, and damper is widely used in the structural vibration reduction field of civil engineering.Resistance on the market at present
The tension and compression that Buddhist nun's device vibration absorber is mostly only capable of resisting one-dimensional square act on, the vibration damping of supporting member suitable for structure, and main
Applied to executive information systems；It is different from high-rise, in super-high building structure supporting member, large-span space structure its
Structural response has apparent multidimensional characteristic；For the large span spatial structure of single layer mesh form, structure structure
Part is usually by " moment of flexure-axle power " multidimensional internal force compound action；I.e. under wind shake, rain vibration, ambient vibration and geological process, single layer
Its rod piece of the large span spatial structure of grid configuration is not only acted on by axle power, also suffers from Moment；Only have and resists one-dimensional square
The damper acted on to tension and compression will can not achieve oscillation damping and energy dissipating of the component under complicated applied force state, not be suitable for long-span space knot
Structure.Current existing damper vibration damping device is difficult to meet the vibration control requirement of large-span space structure.
Utility model content
The purpose of this utility model is to overcome deficiency in the prior art, provide a kind of based on Stewart mechanism
Multidimensional vibration reduction damper, the utility model realize multidimensional vibration reduction using less damping element, it is made to provide high additional damping
It is also able to bear multidimensional internal force caused by Complicated Loads simultaneously, reaches the effect for carrying out multidimensional vibration reduction to large-span space structure
Fruit.
The purpose of this utility model is achieved through the following technical solutions:
A kind of multidimensional vibration reduction damper based on Stewart mechanism, including ring flange, connection otic placode and damping element, institute
It states ring flange and is provided with two panels, arrangement setting triangular in shape is there are three the connection otic placode on every ring flange, and connection otic placode
Axial line away from ring flange is equidistant；Wherein each connection otic placode on a piece of ring flange by two damping elements with
In addition on a piece of ring flange two connection otic placodes connection, the damping element from left to right successively by the first crossed universal shaft,
First connecting rod, piston rod, damping element cylinder body, the second connecting rod and the second crossed universal shaft composition, the piston rod can be stretched
Contracting is movably connected on the damping element cylinder body, first crossed universal shaft and the second crossed universal shaft pass through bearing with
Connection otic placode connection.
Further, the plagiohedral structure or inclined-plane is had by a pair that each connection otic placode uses the high two sides in middle part low
Convex block constitute.
Further, the first crossed universal shaft on each damping element, first connecting rod, piston rod, damping member
Part cylinder body, the second connecting rod and the second crossed universal shaft all have identical axial line.
Further, the control and weakening of multidimensional vibration reduction damper low-frequency excitation suitable for 0-20Hz.
Further, the multidimensional vibration reduction damper can any angle arrangement.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is:
The parallel connection for realizing more damping elements in smaller space is realized multidimensional vibration reduction using less damping element, is relatively passed
System damper, which is compared, can provide higher additional damping；It is internal to form one with ring flange per two adjacent damping elements
Stable geometrically stable system makes damper that a stable structural system be integrally formed, so as to bear Complicated Loads institute
The internal force of all directions of generation；Structure is simple, easy for construction, is suitable for large-span space structure.
Detailed description of the invention
Fig. 1 is the three dimensional structure diagram of the utility model；
Fig. 2 is the flat state schematic diagram of the utility model；
Fig. 3 is the damping element three dimensional structure diagram of the utility model；
Fig. 4 is the three dimensional structure diagram of the connection otic placode of the utility model
Marked in the figure: 1, ring flange；2, connection otic placode；3, crossed universal shaft；4, connecting rod；5, piston rod；6, damping member
Part cylinder body；7, bearing.
Specific embodiment
The advantages of in order to make the utility model and feature are easier to be understood, below with reference to technical solution and attached drawing pair
Embodiments thereof are described in detail.
The utility model proposes multidimensional vibration reduction damper it is as shown in Figures 1 to 4, including ring flange 1, connection otic placode 2, ten
Word universal shaft 3, connecting rod 4, piston rod 5, damping element cylinder body 6；Bearing 7；Ring flange 1 is total to two panels, and connection otic placode 2 totally six；
Three connection otic placodes 2 are arranged on every ring flange 1, the distribution triangular in shape of three connection otic placodes 2 arranged on ring flange 1, and away from
1 axial line of ring flange is equidistant；Crossed universal shaft 3, connecting rod 4, piston rod 5,6 coaxial inner conductor cloth of damping element cylinder body
It sets, collectively constitutes damping element, the sequence from left to right arranged is followed successively by crossed universal shaft 3, connecting rod 4, piston rod 5, damping
Element cylinder body 6, connecting rod 4, crossed universal shaft 3；Internally-damped element totally six, each damping element passes through connection otic placode cloth
It sets between two panels ring flange；Bearing 7 connects between damping element and connection otic placode 2 with the two.
In the present embodiment, the upper surface of connection otic placode 2 is set as the low plagiohedral structure in the high two sides in middle part, wherein a piece of method
Two inclined-planes of each connection otic placode 2 on blue disk are separately connected one end of two damping elements, the two damping elements it is another
One end is connect with two connection otic placodes on other a piece of ring flange, and so on, finally constitute the utility model as shown in Figure 1
The three dimensional structure diagram of multidimensional vibration reduction damper.
Specifically, per two adjacent internally-damped elements a stable geometry unchanged body can be formed with ring flange
System, makes damper that a stable structural system be integrally formed, so that damper is able to bear caused by Complicated Loads
Multidimensional internal force.
Specifically, damping element is connect with connection otic placode using crossed universal shaft and bearing in the present embodiment；Tradition
The connection type of Stewart platform mechanism is that side is flexural pivot link, and the other side is that flexible Hooke is hinged；The utility model with
Traditional connection is different.
Specifically, the crossed universal shaft, connecting rod, piston rod, damping element cylinder body on each damping element are with identical
Axial line.Being equivalent to each rod piece has oneself a local coordinate system, is arranged along the axial line of oneself.Due to
The both ends of internal each damping element are crossed universal shafts, so moment of flexure can discharge；So at any time, multidimensional subtracts
Each damping element of vibration damper will not bend, and each damping element of multidimensional vibration reduction damper can be along oneself
Axial line movement.Releasable horizontal direction moment of flexure and the Vertical Square as caused by external multi-dimensional complicated load of crossed universal shaft
To moment of flexure；The releasable torque as caused by external multi-dimensional complicated load of bearing.
Specifically, damping element is viscous damping element.For the large-span space structure for meeting different form, different size
Vibration damping demand, viscous damping element can also stretch material and shape memory alloy material etc. with visco-elastic element and mangneto and be made
Damping element be replaced, and preferably viscoelastic damping element be replaced.
Specifically, the utility model multidimensional vibration reduction damper is mainly used in building vibration damping field, it is suitable for centering low frequency
Disturb the control and weakening of (0-20Hz).
Specifically, its structure type of the utility model multidimensional vibration reduction damper is full symmetric structure, with replacing member
Mode is arranged on the rod piece position of long-span space building superstructure；Crossed universal shaft adds bearing that can be equivalent to flexural pivot, can be with
Discharge three-dimensional rotation；The vertical placement that traditional Stewart platform mechanism can only be fixed, and the utility model can be with any angle cloth
It sets.In mechanical manufacturing field or aerospace field, the Related product of the structure type is carried out in the form of shock insulation platform
Shock insulation, so can only vertically place；It and is to pass through whole device using whole device as dissipative damping device in the utility model
Movement, internal each damping element consumes energy, to reduce vibration, it is possible to the rod piece in replacing structure, according to bar
The position of part determines the position of multidimensional vibration reduction damper.
The utility model multidimensional vibration reduction damper can have certain rigidity, and rigidity size is rigid by internally-damped element
Degree determines；It is internal to form a stable geometrically stable system with ring flange per two adjacent damping elements, make multidimensional
A stable structural system is integrally formed in damper；Due to the releasable three-dimensional rotation in the both ends of damping element, so
Multidimensional vibration reduction damper itself can bear " moment of flexure-axle power " multidimensional internal force compound action, and under multidimensional internal force compound action,
The mass motion of multidimensional vibration reduction damper can decouple the axial movement for being converted into internally-damped element itself.So multidimensional vibration reduction hinders
Buddhist nun's device has the multidimensional rigidity such as axial, bending when by Static behavior, and certain load is able to bear under multidimensional Static behavior,
To reduce because replacing member is weakening caused by structure；Under power effect, it can be provided for large span spatial structure effectively more
Tie up vibration damping.
The utility model is not limited to embodiments described above.Above the description of specific embodiment is intended to describe
With illustrate the technical solution of the utility model, the above mentioned embodiment is only schematical, is not restrictive.In
In the case of not departing from the utility model aims and scope of the claimed protection, those skilled in the art are practical at this
The specific transformation of many forms can be also made under novel enlightenment, these are belonged within the protection scope of the utility model.
Claims (5)
1. a kind of multidimensional vibration reduction damper based on Stewart mechanism, which is characterized in that including ring flange, connection otic placode and resistance
Buddhist nun's element, the ring flange are provided with two panels, and there are three the connection otic placodes for arrangement setting triangular in shape on every ring flange, and
Connection otic placode is equidistant away from the axial line of ring flange；Wherein each connection otic placode on a piece of ring flange passes through two resistances
Buddhist nun's element is connect with two connection otic placodes on other a piece of ring flange, and the damping element is from left to right successively by the first cross
Universal shaft, first connecting rod, piston rod, damping element cylinder body, the second connecting rod and the second crossed universal shaft composition, the piston
Bar is telescopic to be movably connected on the damping element cylinder body, and first crossed universal shaft and the second crossed universal shaft pass through
Bearing is connect with connection otic placode.
2. a kind of multidimensional vibration reduction damper based on Stewart mechanism according to claim 1, which is characterized in that Mei Gesuo
Connection otic placode is stated to use the high low plagiohedral structure in two sides in middle part or be made of a pair with bevelled convex block.
3. a kind of multidimensional vibration reduction damper based on Stewart mechanism according to claim 1, which is characterized in that Mei Gesuo
State the first crossed universal shaft, first connecting rod, piston rod, the damping element cylinder body, the second connecting rod and second on damping element
Crossed universal shaft all has identical axial line.
4. a kind of multidimensional vibration reduction damper based on Stewart mechanism according to claim 1, which is characterized in that described more
Tie up the control and weakening of damper low-frequency excitation suitable for 0-20Hz.
5. according to claim 1 or a kind of 4 multidimensional vibration reduction dampers based on Stewart mechanism, which is characterized in that described
Multidimensional vibration reduction damper can any angle arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822104917.2U CN209703743U (en) | 2018-12-14 | 2018-12-14 | A kind of multidimensional vibration reduction damper based on Stewart mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822104917.2U CN209703743U (en) | 2018-12-14 | 2018-12-14 | A kind of multidimensional vibration reduction damper based on Stewart mechanism |
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| CN209703743U true CN209703743U (en) | 2019-11-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537757A (en) * | 2018-12-14 | 2019-03-29 | 天津大学 | A kind of multidimensional vibration reduction damper based on Stewart mechanism |
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2018
- 2018-12-14 CN CN201822104917.2U patent/CN209703743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537757A (en) * | 2018-12-14 | 2019-03-29 | 天津大学 | A kind of multidimensional vibration reduction damper based on Stewart mechanism |
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