CN108729569B - A kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber - Google Patents
A kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber Download PDFInfo
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- CN108729569B CN108729569B CN201810667853.9A CN201810667853A CN108729569B CN 108729569 B CN108729569 B CN 108729569B CN 201810667853 A CN201810667853 A CN 201810667853A CN 108729569 B CN108729569 B CN 108729569B
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- spring
- vibration absorber
- mass block
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- combined type
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
Abstract
The invention discloses a kind of multidimensional whirlpool springs and helical spring combined type to tune vibration absorber; including a protection cylinder; several spring cases are equipped with inside the protection cylinder, spring case is fixedly placed on the frid of support bar top, and the support rod bottom is bolted inside protection tube end plate.The spring case inner disc is wound with scroll spring, and scroll spring one end is fixed on the axis in spring case, and the other end, which stretches out spring case and passes through bearing, to be connected on universal spherical joint, and the universal spherical joint is placed in the groove for being reserved in mass block side.Spring fastening is relatively fixedly installed in the protection cylinder inner wall and mass block above and below, and the spring fastening covers at the both ends of Vertical Spring.
Description
Technical field
The present invention relates to the vibration control fields of civil structure, and in particular to a kind of multidimensional whirlpool spring and the tuning of helical spring combined type
Vibration absorber.
Background technique
Under wind load or geological process, building structure is generated high vibration by the load that outside is transmitted, for work
For journey structure itself, this vibration is very harmful.Under this reciprocating motion, structural elements is easy to happen continuity mistake
Effect, leads to large-scale collapse.Structural vibration control is the effective ways for solving building structure and failing under dynamic excitation.
Vibration control method is combined the subjective initiative of people with naturally uncertain, and the vibration of building structure can effectively be inhibited to ring
It answers, it is ensured that the safety of structure and durability.
The damping mode that can be used in carrying out civil structure vibration control at present has very much, and wherein tuning quality damps
Device becomes one of most widely used damping mode in practical projects since simple structure, effectiveness in vibration suppression are significant.Tuning quality
Damper is generally made of mass block, elastic damping element and damping system.Wherein, elastic damping element generallys use cylinder spiral shell
Spring is revolved, the spring structure is simple, and easily manufactured, weight is small and the position that takes up space is few.When structure is vibrated, quality is driven
Block movement causes helical spring to deform, and the kinetic energy of mass block is converted to the potential energy of helical spring, to inhibit structure
Vibratory response.But helical spring can generate biggish deformation when mass block Oscillation Amplitude is larger, it is limited in design space
In the case of, it is difficult to reach ideal effectiveness in vibration suppression.
Summary of the invention
To overcome the above drawback, it is an object of the present invention to provide a kind of multidimensional whirlpool springs and helical spring combined type to tune vibration absorber,
It is intended to reduce vibratory response of the building structure under wind load and geological process, achievees the purpose that passive energy dissipation.The present invention uses
Plane scroll spring proposes a kind of multidimensional whirlpool spring and helical spring combined type tuning vibration absorber as elastic damping element.When applying
After adding external force, scroll spring can generate elasticity of flexure deformation in winding, cause to generate biggish deformation angle, in a limited space
More energy can be stored in volume.When main structure occurs significantly to vibrate, vibration absorber can satisfy stable work
Make performance, achievees the purpose that effectively to inhibit structural vibration.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber, including a protection cylinder, in the protection cylinder
The heart is equipped with a mass block, and the top and bottom of the protection cylinder pass through top and bottom phase of the Vertical Spring with mass block respectively
Even；Several spring cases are surrounded by mass block, spring case is fixedly placed on the frid of support bar top, the support rod
Bottom is connected on protection tube end plate；The spring case inner disc is wound with scroll spring, and scroll spring one end is fixed on spring case
On interior axis, the other end, which stretches out spring case and passes through bearing, to be connected on universal spherical joint, and the universal spherical joint is placed in pre-
It stays in the groove of mass block side.
Further technical solution are as follows: the vibration absorber is mounted on the position that main structure is easy to happen vibratory response
It sets.
Further technical solution are as follows: the protection cylinder is made of stainless steel material, prevents it in the external worlds such as wind and rain
Environment issues erosion of getting rusty.
Further technical solution are as follows: pass through spring fastening phase between the Vertical Spring and mass block and protection cylinder
Even；Described spring fastening one end has viscoelastic material, occurs acutely when avoiding mass block Oscillation Amplitude larger with protection cylinder
Collision.
Further technical solution are as follows: be coated with lubricating oil in the gap on the universal spherical joint surface and groove.
Further technical solution are as follows: the scroll spring is non-contact type plane scroll spring, and selected materials can be adopted
Use elastic material.
Further technical solution are as follows: the protection tube end plate is equipped with multiple bolts hole on two axis directions, makes
Support rod bottom is connected on protection tube end plate with bolt.Quality can be changed according to using the bolt hole of different location simultaneously
The axial line distance of block and spring case.
Further technical solution are as follows: the bearing is fixed on protection tube end plate by rigid rod.
Further technical solution are as follows: in the initial state, the bearing two sides scroll spring keeps horizontal linear.
Further technical solution are as follows: the scroll spring between the spring case and bearing remains that straight line, bearing are another
The movement of any direction can occur with the motion state of mass block for the scroll spring of side.
Further technical solution are as follows: the horizontal rigidity of the vibration absorber is mainly provided by scroll spring, Ke Yitong
The rotary inertia for moving horizontally the position change mass block of spring case to axis is crossed, and then adjusts the horizontal vibration of the vibration absorber
Frequency.Meanwhile when horizontal vibration occurs for mass block, Vertical Spring generation is shear-deformable to further suppress vibratory response.
The horizontal vibration frequency of the vibration absorber can be calculated by following formula:
In formula, KθFor the global stiffness of scroll spring, I is mass block to the rotary inertia of axis, can be determined by following formula:
I=mL2
In formula, m is the quality of mass block, and L is distance of the mass block center of gravity to axis.
Further technical solution are as follows: the vertical rigidity of the vibration absorber is mainly provided by Vertical Spring, can be adjusted
The vertical motion frequency for saving the vibration absorber is mutually tuned with structure.Meanwhile when vertical motion occurs for mass block, scrollwork bullet is driven
Spring planar twists, and effectively inhibits the vibratory response of structure with Vertical Spring synergy.
The vertical motion frequency of the vibration absorber can be calculated by following formula:
In formula, KsFor Vertical Spring stiffness at the end summation, foptFor optimal frequency ratios, can be determined by following formula:
In formula, μ is the mass ratio of mass block and main structure first-order modal.
The beneficial effects of the present invention are:
(1) vibration absorber utilizes the mating reaction of plane scroll spring and Vertical Spring, effectively reduces structure in wind lotus
It carries or geological process is lauched gentle vertical motion response, the uncertain brought hidden danger in direction when load occurs can be made up.
(2) vibration absorber fully considers the low drawback of cylindrically coiled spring space utilization rate, using in smaller size smaller
The plane scroll spring of more energy can be stored as required elastic damping element, in the situation that damping space is limited
Under, realize good effectiveness in vibration suppression.
It (3) can be by changing the rigidity of Vertical Spring, mass block to the rotary inertia of in spring case axis, to the vibration damping
Vertical, the horizontal vibration frequency of device are adjusted, and are had a wide range of application.
(4) working principle of the vibration absorber belongs to passive control, and simple structure is easy to maintain, inputs without the energy, can
Suitable for the building structure that towering, figure are complicated and safety requirements is high, guarantee that structure meets required safety and durability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is the front view that a kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber；
Fig. 2 is the top view that a kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber；
Fig. 3 is the horizontal vibration schematic diagram that a kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber；
In figure: 1 protection cylinder, 2 spring cases, 3 axis, 4 scroll springs, 5 bearings, 6 universal spherical joints, 7 mass blocks, 8 spring branch
Seat, 9 viscoelastic materials, 10 Vertical Springs, 11 support rods, 12 frids, 13 rigid rods, 14 bolts, 15 bolts hole.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination；
In order to facilitate narration, if there is "upper", "lower", " left side " " right side " printed words in the present invention, only expression and attached drawing itself
Upper and lower, left and right direction it is consistent, not to structure rise restriction effect, it is only for convenient for description the present invention and simplification retouch
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, and be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
As background technique is introduced, can be used in carrying out civil structure vibration control at present in the prior art
Damping mode has very much, wherein tuned mass damper due to simple structure, effectiveness in vibration suppression it is significant, become and answer in practical projects
With one of widest damping mode.Tuned mass damper is generally made of mass block, elastic damping element and damping system.
Wherein, elastic damping element generallys use cylindrically coiled spring, and the spring structure is simple, easily manufactured, and weight is small and takes up space
Position is few.When structure is vibrated, drives mass block movement that helical spring is caused to deform, the kinetic energy of mass block is converted
For the potential energy of helical spring, to inhibit the vibratory response of structure.But the helical spring meeting when mass block Oscillation Amplitude is larger
Biggish deformation is generated, in the limited situation in design space, it is difficult to reach ideal effectiveness in vibration suppression, in order to solve skill as above
Art problem, present applicant proposes a kind of multidimensional whirlpool springs and helical spring combined type to tune vibration absorber, it is intended to reduce building structure in wind
Vibratory response under load and geological process, achievees the purpose that passive energy dissipation.The present invention is using plane scroll spring as elasticity
Damping element proposes a kind of multidimensional whirlpool spring and helical spring combined type tuning vibration absorber.After applying external force, scroll spring is being rolled up
Around when can generate elasticity of flexure deformation, cause to generate biggish deformation angle, can be stored in volume in a limited space more
Energy.When main structure occurs significantly to vibrate, vibration absorber can satisfy stable working performance, reach effective inhibition
The purpose of structural vibration.
In a kind of typical embodiment of the application, as shown in Figure 1, a kind of multidimensional whirlpool spring and the tuning of helical spring combined type subtract
Vibrating device, including a protection cylinder 1, several spring cases 2 and mass block 7, several spring cases 2 are arranged in 7 surrounding of mass block and consolidate
Due on the frid 12 at 11 top of support rod, 11 bottom of support rod is connect by bolt 14 with protection 1 bottom plate of cylinder.In spring case 2
Coiling has scroll spring 4, and one end of scroll spring 4 is fixed on the axis 3 of spring case 2, and the other end stretches out spring case 2 and passes through
Bearing 5 is connect with universal spherical joint 6, and universal spherical joint 6 is placed in the groove for being reserved in 7 side wall of mass block.Bearing 5 is by being fixed on
The rigid rod 13 on 1 bottom plate of cylinder is protected to support.The above and below of protection 1 inner wall of cylinder and mass block 7 is relatively fixed with spring branch
Seat 8, and it is respectively fitted over the both ends of Vertical Spring 10.
In fig. 1, mass block is square, wherein spring case 2 include four, be distributed in mass block 7 it is forward and backward, left,
On right four direction；Certainly, spring case 2 can also be arranged 8 or 16 etc..When mass block is cylindrical or other
When shape, it can be set according to actual needs multiple spring cases 2.
In fig. 1, about 10 spring is respectively arranged two groups, when practical application, can be configured according to actual needs.
Lubricating oil is coated in 6 surface of universal spherical joint and the gap of groove；Guarantee that universal spherical joint 6 can freely turn in groove
It is dynamic.
8 one end of spring fastening has viscoelastic material 9, and play occurs with protection cylinder 1 when avoiding 7 Oscillation Amplitude of mass block larger
Strong collision.
Scroll spring 4 is non-contact type plane scroll spring, and elastic material, such as shape memory can be used in selected materials
Alloy.
Protection 1 bottom plate of cylinder is equipped with multiple bolts hole 15 in the axial direction, is connected 11 bottom of support rod using bolt 14
On protection 1 bottom plate of cylinder.It simultaneously can be according to the axial line distance for changing mass block 7 and spring case 2 using different bolts hole 15；
And then change mass block 7 to the rotary inertia of axis 3 in spring case 2.
Scroll spring 4 between spring case 2 and bearing 5 remains straight line, and the scroll spring 4 of 5 other side of bearing can be with matter
The movement of any direction occurs for the motion state of gauge block 7.
The horizontal rigidity of the vibration absorber is mainly provided by scroll spring 4, can be by moving horizontally the position of spring case 2
Change mass block 7 to the rotary inertia of axis 3 in spring case 2, and then adjusts the frequency of the vibration absorber.When the vibration of mass block 7
It is dynamic when with horizontal direction being main, pull scroll spring 4 to generate elasticity of flexure deformation in spring case 2, storage major part is by quality
The energy that block 7 transmits.Meanwhile the horizontal movement of mass block 7 also will drive Vertical Spring 10 and occur shear-deformable, further suppress
The horizontal vibration of structure responds.
The horizontal vibration frequency following formula of the vibration absorber calculates:
In formula, KθFor the global stiffness of scroll spring, I is mass block to the rotary inertia of axis, can be determined by following formula:
I=mL2
In formula, m is the quality of mass block, and L is distance of the mass block center of gravity to axis.
The vertical rigidity of the vibration absorber is mainly provided by Vertical Spring 10, can pass through the rigidity of change Vertical Spring 10
And number, the frequency of the vibration absorber is adjusted.When the vibration of mass block 7 is to be vertically main, Vertical Spring 10 is produced
Change shape, converts the kinetic energy of mass block 7 to the potential energy of Vertical Spring 10.Meanwhile the vertical motion of mass block 7 also will drive whirlpool
Coil spring 4 planar generates torque, and the energy that storage a part is transmitted by mass block 7 further suppresses the vertical vibration of structure
Dynamic response.
The vertical motion frequency of the vibration absorber can be calculated by following formula:
In formula, K is Vertical Spring stiffness at the end summation, foptFor optimal frequency ratios, can be determined by following formula:
In formula, μ is the mass ratio of mass block and main structure first-order modal.
The vibration absorber considers the uncertainty in external loads direction, is made by scroll spring 4 and the joint of Vertical Spring 10
With effective response to multi-axis vibration for inhibiting main structure.Superlastic after vibration, after being deformed using scroll spring 4
Property characteristic, vibration absorber is presented into back initial conditions, guarantees working performance when application next time.
The vibration absorber is particularly suitable for the structure sensitive to dynamic excitation situation, such as skyscraper or tall and slender structure.
When high vibration occurs for structure, mass block 7 is driven to generate the biggish movement of amplitude, compared with cylindrically coiled spring, scrollwork bullet
Spring 4 can generate biggish deformation angle in spring case 2, and in the case where damping space is limited, vibration absorber still has stable
Working performance reaches good effectiveness in vibration suppression.
The vibration absorber is mounted on the position that main structure is easy to happen vibratory response, and working principle belongs to passive control
System, simple structure is easy to process, is applicable not only to the vibration damping of new building structure, is also applied for the vibration damping of existing structures
Control.
The embodiment above of this patent is not limiting the scope of the present invention, and the embodiment of this patent is unlimited
In this, all this kind is not being departed from according to the above content of this patent according to the ordinary technical knowledge and customary means of this field
Under the premise of the above-mentioned basic fundamental thought of this patent, the modifications of other diversified forms that this patent above structure is made, replacement or
Change, should all fall within the protection scope of this patent.
Claims (8)
1. a kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber, which is characterized in that including a protection cylinder, in the guarantor
The center of casing is equipped with a mass block, and the top and bottom of the protection cylinder pass through the top surface of Vertical Spring and mass block respectively
It is connected with bottom surface；Several spring cases are surrounded by mass block, spring case is fixedly placed on the frid of support bar top, institute
Support rod bottom is stated to be connected on protection tube end plate；The spring case inner disc is wound with scroll spring, and scroll spring one end is fixed
On axis in spring case, the other end, which stretches out spring case and passes through bearing, to be connected on universal spherical joint, the universal spherical joint
It is placed in the groove for being reserved in mass block side；
The protection tube end plate is equipped with multiple bolts hole in the axial direction, and support rod bottom is connected to protection using bolt
On tube end plate；Simultaneously according to the axial line distance for changing mass block and spring case using different bolts hole；
Scroll spring remains straight line between the spring case and bearing, and the scroll spring of the bearing other side can be with mass block
The movement of motion state generation any direction.
2. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
Cylinder is protected to be made of stainless steel material.
3. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
It is connected between Vertical Spring and mass block and protection cylinder by spring fastening；Has viscoplasticity material in described spring fastening one end
Material.
4. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
Lubricating oil is coated in universal spherical joint surface and the gap of groove.
5. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
Scroll spring is non-contact type plane scroll spring, and selected materials use elastic material.
6. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
Bearing is fixed on protection tube end plate by rigid rod.
7. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
The horizontal rigidity of vibration absorber is adjusted by moving horizontally rotary inertia of the position change mass block to axis of spring case
The horizontal vibration frequency of the vibration absorber.
8. a kind of multidimensional whirlpool spring as described in claim 1 and helical spring combined type tune vibration absorber, which is characterized in that described
The vertical rigidity of vibration absorber is mainly provided by Vertical Spring, thus it is possible to vary frequency of the rigidity of Vertical Spring to the vibration absorber
It is adjusted.
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| CN201810667853.9A CN108729569B (en) | 2018-06-26 | 2018-06-26 | A kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber |
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| CN201810667853.9A CN108729569B (en) | 2018-06-26 | 2018-06-26 | A kind of multidimensional whirlpool spring and helical spring combined type tune vibration absorber |
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| CN108729569B true CN108729569B (en) | 2019-03-29 |
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| CN113136787A (en) * | 2020-01-17 | 2021-07-20 | 北京奇太振控科技发展有限公司 | Novel lever TMD device with amplification mass effect and spring stiffness |
| CN111473085B (en) * | 2020-05-09 | 2021-02-09 | 江苏方天电力技术有限公司 | Damping vibration absorber with adjustable frequency |
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| JPH11351315A (en) * | 1998-06-10 | 1999-12-24 | Asahi Chem Ind Co Ltd | Pendulum-type vibration control device for building |
| JP2005061211A (en) * | 2004-09-30 | 2005-03-10 | Ohbayashi Corp | Seismic isolator |
| CN201502113U (en) * | 2009-09-25 | 2010-06-09 | 北京工业大学 | Drum-type omnibearing tuning shock absorbing mass damper |
| CN101672074B (en) * | 2009-09-25 | 2011-05-18 | 北京工业大学 | Drum-type omni-directional turned mass damper |
| CN101812879B (en) * | 2010-03-26 | 2012-07-25 | 北京工业大学 | Tuned mass damper for controlling tri-dimensional translation and horizontal torsion of building structure and manufacturing method thereof |
| CN103306394B (en) * | 2013-06-28 | 2015-12-02 | 山东大学 | A kind of mixed type two-way adjustable shock absorber |
| CN203334467U (en) * | 2013-07-12 | 2013-12-11 | 山东大学 | Multidimensional adjustable vibration damping control device |
| CN103306395A (en) * | 2013-07-12 | 2013-09-18 | 山东大学 | Multi-dimensional adjustable vibration reduction control device |
| CN204491888U (en) * | 2015-03-19 | 2015-07-22 | 河南城建学院 | A kind of three-dimensional shock-absorption quality tuned damper |
| CN104727456B (en) * | 2015-03-19 | 2017-03-01 | 河南城建学院 | A kind of three-dimensional shock-absorption quality tuned damper |
| CN105735512A (en) * | 2016-05-03 | 2016-07-06 | 柳州东方工程橡胶制品有限公司 | Vibration reduction control device of tuned mass damper |
| CN205604511U (en) * | 2016-05-03 | 2016-09-28 | 柳州东方工程橡胶制品有限公司 | Harmonious mass damper damping controlling means |
| CN106907042B (en) * | 2017-04-11 | 2023-06-23 | 山东大学 | Multistage composite energy-absorbing energy-consuming vibration reduction device, application and method |
| CN206752729U (en) * | 2017-06-05 | 2017-12-15 | 山东大学 | A kind of multidimensional resistance dissipative damping device |
| CN107268819B (en) * | 2017-06-05 | 2023-08-18 | 山东大学 | Multidimensional resistance energy consumption vibration damper |
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