CN109932150A - A kind of towering suspension detection structure micro-vibration control device - Google Patents
A kind of towering suspension detection structure micro-vibration control device Download PDFInfo
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Abstract
The present invention provides a kind of towering suspension detection structure micro-vibration control devices, comprising: steel rigidity T stage (1) is levelling bench, is detected equipment for placing radar, is braced frame counterweight, keeps its balance；Position limitator, including I class limiter (2) and II class limiter (4), for preventing impact vibration and burst load from steel rigidity T stage (1) being made to be detached from support device, improving stability, I class limiter (2) is used to limit the relative position of air spring in steel rigidity T stage (1) and air-flotation system (3), and II class limiter (4) is used to limit the relative position that rigidity of support erects air spring in column (5) and air-flotation system (3)；Air-floating apparatus (3) configures 6 air springs, it is ensured that the table-surface level of steel rigidity T stage (1) is stablized；Building structure basis terrace (10) plays the role of antivibration for bearing the whole load of building and passing it to ground.
Description
Technical field
The present invention relates to detection structure micro-vibration control fields, more particularly to a kind of towering suspension detection structure micro-vibration
Control device.
Background technique
It is only for space independent detection environment, such as radar and the detection of homogeneous e component electromagnetic shielding performance, space
It needs to provide high-performance micro-vibration environment, the thunder in closed electromagnetic wave darkroom in closed electromagnetic wave darkroom under vertical detection environment
Up to when the detection of component electromagnetic shielding performance, by it is normal when randomly pulsations affect, it is desirable to provide micron order or Subnano-class vibration
Environment-guarantee.
Currently, radar electron-like component controls electromagnetic shielding chamber micro-vibration when carrying out Calibration test experience,
It is mainly using big section steel truss and by steel truss structure in conjunction with substrate setting air supporting vibration isolation system.Both technologies are in work
During work, all it is difficult to meet Vibration Absorption Designing requirement, following defect is individually present:
(1) vibration isolation can not be subtracted, it can only antivibration.Steel truss structure is used merely, is assembled into multilayer by main material of fashioned iron
Frame form, structural system and micro-vibration ambient vibration load have local resonance range overlap joint, Yi Fasheng covibration；And truss
Rigidity is high, can only antivibration, vibration isolation can not be subtracted；Big quality support system, substrate integral vibration isolation effect are poor；Form of construction work is according to one
Secondary property pours forming, and time and effort consuming, according to assembled, structural compliance is big, and anti-vibration performance is poor.
(2) resonance is generated easily on low frequency, damping efficiency is low and foundation pit is non-reusable.Using air supporting vibration isolation system
Under be placed in the scheme of braced frame, need to divide into melt pit in screened room, place air supporting vibration isolation system, cement pours forming, engineering
Period is long, and melt pit maintenance cost is high, after discarding can not secondary use, welding；Air floating platform intrinsic frequency is lower, easily
Resonance is generated on low frequency, it is limited to micro-vibration control effect；Tall and slender structure is set in air supporting vibration isolation system, load capacity is big, needs
Want the quantity of air spring more, it is at high cost, and the rigidity of frame structure is greatly reduced, place top radar electric equipment
The vibration isolating effect in region does not reach requirement, and sexual valence is relatively low.
Summary of the invention
The present invention is directed under space independent detection environment, the radar component electromagnetic shielding performance in closed electromagnetic wave darkroom
When detection, by it is normal when randomly pulsations affect, it is desirable to provide the problem of micron order or Subnano-class vibration environment ensure provides
A kind of towering suspension detection structure micro-vibration control device is filled by using towering formula rigid support system, air bearing suspension vibration isolation
It sets, T-type rigid platfor integrated vibration control technology, makes radar component electromagnetic shielding performance under the independent detection environment of space
When detection, micro-vibration environment is effectively controlled in closed electromagnetic wave darkroom, reaches the requirement of micron order or Subnano-class vibration.
The purpose of the present invention is to provide a kind of towering suspension detection structure micro-vibration control devices, comprising:
Steel rigidity T stage (1), the steel rigidity T stage (1) are levelling bench, are detected equipment for placing radar,
It is simultaneously braced frame counterweight, keeps its balance；
Position limitator, including I class limiter (2) and II class limiter (4), for preventing impact vibration and burst lotus
Load makes steel rigidity T stage (1) be detached from support device, and improving stability, the I class limiter (2) is for limiting the steel
The relative position of air spring in rigid T stage (1) and air-flotation system (3), the II class limiter (4) are rigid for limiting support
Property erect the relative position of air spring in column (5) and air-flotation system (3)；
Air-floating apparatus (3), the air-floating apparatus (3) configure 6 air springs, and air spring intrinsic frequency is low, is resonating
When damping it is high, and then damped in high frequency small, can effectively avoid resonance, absorb the vibration that ground is transmitted, passive energy dissipation, it is ensured that institute
The table-surface level for stating steel rigidity T stage (1) is stablized；
Building structure basis terrace (10), for bearing the whole load of building, and passes it on ground, plays
The effect of antivibration.
Preferably, the braced frame includes that rigidity of support erects column (5), and rigidity of support frame binding beam (7) and support are rigid
Property frame ground binding beam (8), rigidity of support frame binding beam (7) the connection rigidity of support erects column (5) and is simultaneously connected to become an entirety, add
The rigidity and stability of strong support construction, the rigidity of support frame binding beam (8) be used to adjust may generation differential settlement,
The globality for reinforcing basis, makes subgrade reaction more evenly, and promotion ground is connect firm with rigidity of support erection column (5)
Property.
Preferably, the rigidity of support erects column (5) and is arranged on building structure basis terrace (10), mounts
Six roots of sensation circular section concrete material column, the column are distributed in regular hexagon, guarantee the rigidity and monolithic stability of braced frame
Property, to support air-floating apparatus (3) and steel rigidity T stage (1), equipment is detected for radar, suitable placing height is provided.
It preferably, further include electromagnetic signal reflecting plate (6), the electromagnetic signal reflecting plate (6) is steel plate, is placed on described
Entire control device is simultaneously run through in the middle part of braced frame, for shielding electromagnetic signal, blocks electromagnetic radiation to enter and leave, is test experience
Electromagnetic wave enclosed environment is provided.
Preferably, further include antistatic return air floor (9), achieve the purpose that antistatic for Charge dissipation, play simultaneously
Wind action is led to lower part building structure basis terrace (10).
Preferably, the steel rigidity T stage (1) has certain mass, and designs for symmetrical structure, to be promoted whole
A structural rigidity is promoted, and optimizes modal distribution.
Preferably, it is required according to micron order or Subnano-class vibration, it is thick to steel rigidity T stage (1) mesa supports
Degree and T-type section thickness are designed.
Beneficial effects of the present invention:
Using rigid support frame, combines the stabilising system for being assembled into likeness in form hexagon, have total towering
And stable characteristic；Air bearing suspension isolation mounting is disposed at the top of support system, effectively improves vibration isolation efficiency；To T-type rigidity
Platform optimizes, and installs multiple limiters in platform periphery, keeps structure entirety counterweight uniform, stability enhancing.
This detection structure micro-vibration control technology, the influence of random earth pulsation when effectively excluding normal make radar component electromagnetically
When can detect, it is capable of providing micron order or Subnano-class vibration environment.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.Target and feature of the invention will be apparent from view of following description taken together with the accompanying drawings,
In attached drawing:
Attached drawing 1 is the equipment constructing structure schematic diagram according to the floated micro-vibration of dominant type of the embodiment of the present invention.
Specific embodiment
Referring to Fig. 1, which is applied to the calibration test experience detection of radar electron-like component electromagnetic shielding performance
Structure micro-vibration control field.The present embodiment provides high-performance micro-vibration environment for test experience, by rigid support frame with
Air bearing control system is mutually arranged in pairs or groups, and while providing detection space, effectively controls micro-vibration.
This towering suspension detection structure micro-vibration control device, rigidity supporting structure and air bearing suspension Anti-vibration system are common
It constitutes and efficient subtracts vibration isolation system.It include: steel rigidity T stage 1, steel rigidity T stage 1 is levelling bench, for placing
Radar is detected equipment, while being braced frame counterweight, keeps its balance；Position limitator, including I class limiter 2 and II
Class limiter 4, for preventing impact vibration and burst load from steel rigidity T stage 1 being made to be detached from support device, improving stability, I
Class limiter 2 is used to limit the relative position of air spring in steel rigidity T stage 1 and air-flotation system 3, and II class limiter 4 is used
The relative position of air spring in column 5 and air-flotation system 3 is erected in limitation rigidity of support.T-type rigid platfor and multistage limiter
Safeguards system stability.It is required according to micron order or Subnano-class vibration, rationally to T-type rigid platfor mesa supports thickness, T-type
Section thickness optimizes, and keeps whole system mass distribution uniform, is conducive to whole machine balancing, and platform is easily assembled, after
Phase removes transformation and has convenience.Multiple limiters are arranged in platform periphery, guarantee T-type rigid platfor in impact vibration and burst lotus
Without departing from support device under load effect, guarantee overall security.Air-floating apparatus 3 configures 6 air springs, and air spring is intrinsic
Frequency is low, and in resonance, damping is high, and then damps in high frequency small, can effectively avoid resonance, absorbs the vibration of ground transmitting, consumes
Energy vibration damping, it is ensured that the table-surface level of steel rigidity T stage 1 is stablized；Building structure basis terrace 10, for bearing the complete of building
Portion's load, and pass it on ground, play the role of antivibration.
Braced frame includes that rigidity of support erects column 5, rigidity of support frame binding beam 7 and rigidity of support frame ground binding beam 8, support
Rigid mount binding beam 7 connects rigidity of support and erects column 5 and be connected to become an entirety, reinforces the rigidity and stability of support construction,
Rigidity of support frame binding beam 8 be used for adjust may generation differential settlement, reinforce basis globality, keep subgrade reaction more equal
It is even, ground, which is promoted, with rigidity of support erects the stability that column 5 is connect.Rigidity of support erects the setting of column 5 on building structure basis ground
On level ground 10, for the six roots of sensation circular section concrete material column mounted, support concrete structure that there is certain depth-width ratio, wherein in top
The collar tie beam, column, ground beam and binding beam of bottom each section collectively form likeness in form hexagon rigidity supporting structure, guarantee the rigid of braced frame
Degree and overall stability improve stability by improving overall stiffness.Air bearing is disposed to suspend at the top of entire support construction anti-
Vibrating system, the system frequency is low, and damped coefficient is big, and vibration decaying is fast, can automatically adjust vibration balancing, effectively weakens vibration
Conduction provides high performance micro-vibration environment to support air-floating apparatus 3 and steel for the detection of radar class precise electronic component
Rigid T stage 1 is detected equipment for radar and provides suitable placing height.It further include electromagnetic signal reflecting plate 6, electromagnetic signal is anti-
Penetrating plate 6 is steel plate, is placed on the middle part of braced frame and blocks electromagnetism for shielding electromagnetic signal through entire control device
Radiation enters and leaves, and provides electromagnetic wave enclosed environment for test experience.Including antistatic return air floor 9, reach anti-for Charge dissipation
The purpose of electrostatic, while playing and wind action is led to lower part building structure basis terrace 10.Steel rigidity T stage 1 has centainly
Quality, and designed for symmetrical structure, it is rigidly promoted to promote total, optimizes modal distribution.
Control effect acquired by the embodiment includes:
(1) often random earth pulsation vibration isolation efficiency is high when.Under the independent detection environment of space, radar component electromagnetic wave shielding
When can detect, by it is normal when random earth pulsation influenced, it is difficult to provide high-performance micro-vibration environment for closed electromagnetic wave darkroom.Entirely
System is combined by rigid support frame with flexible air floating platform, and braced frame quality is larger, promotes overall stiffness, and air bearing is flat
Platform has high damping characteristic, and intrinsic frequency is low, and anti-vibration performance is good, effectively removes the influence of random earth pulsation.
(2) towering and stability is good.Likeness in form hexagon support construction provides towering space for test experience, the support
Structure is the braced frame of a set of relative stiffness, and system is made to have greater stiffness, and stability is good.T-type rigid platfor is arranged with
Multiple limiting devices guarantee that whole system is not in that platform is detached from support under biggish impact vibration, burst load action
The phenomenon that system, avoids bringing larger harm, guarantees structural stability.
(3) it is easily assembled.Towering suspension structure is passed through using the beam and column of concrete material according to certain depth-width ratio
Assembled forms frame structure system.Certain depth-width ratio makes that system lower beam, column section be smaller, lighter weight.Beam and column dress
It is good with performance, it convenient for construction, shortens the construction period, while offering convenience to remove transformation.
(4) cost performance is high.It compared with traditional approach, is constructed using assembling, is not necessarily to cast in situs, construction process is few,
Period is short, at low cost, saves a large amount of manpower and material resources, and rigid support frame is combined with air floating platform, effectively controls micro- vibration
The dynamic influence to test experience.
Although the present invention is described by reference to specific illustrative embodiments, these embodiments are not will receive
Restriction and only limited by accessory claim.It should be understood by those skilled in the art that can be without departing from of the invention
Change and modification are able to carry out to the embodiment of the present invention in the case where protection scope and spirit.
Claims (7)
1. a kind of towering suspension detection structure micro-vibration control device, characterized by comprising:
Steel rigidity T stage (1), the steel rigidity T stage (1) are levelling bench, are detected equipment for placing radar, simultaneously
For braced frame counterweight, its balance is kept；
Position limitator, including I class limiter (2) and II class limiter (4), for preventing impact vibration from making with burst load
Steel rigidity T stage (1) is detached from support device, and improving stability, the I class limiter (2) is for limiting the steel rigidity T
The relative position of air spring in type platform (1) and air-flotation system (3), the II class limiter (4) is for limiting rigidity of support frame
The relative position of air spring in column (5) and air-flotation system (3)；
Air-floating apparatus (3), the air-floating apparatus (3) configure 6 air springs；
Building structure basis terrace (10), for bearing the whole load of building, and passes it on ground, plays antivibration
Effect.
2. a kind of towering suspension detection structure micro-vibration control device according to claim 1, it is characterised in that: the branch
Support frame frame includes that rigidity of support erects column (5), rigidity of support frame binding beam (7) and rigidity of support frame ground binding beam (8), the support
Rigid mount binding beam (7) connection rigidity of support erects column (5) and is connected to become an entirety, reinforces the rigidity and stabilization of support construction
Property, the rigidity of support frame binding beam (8) be used for adjust may generation differential settlement, reinforce basis globality, make ground
Base counter-force more evenly, promotes ground with the rigidity of support and erects the stability that column (5) are connect.
3. a kind of towering suspension detection structure micro-vibration control device according to claim 2, it is characterised in that: the branch
It supports rigid mount column (5) to be arranged on building structure basis terrace (10), for the six roots of sensation circular section concrete material mounted
Column, the column are distributed in regular hexagon, guarantee the rigidity and overall stability of braced frame, to support air-floating apparatus
(3) and steel rigidity T stage (1) equipment, is detected for radar, and suitable placing height is provided.
4. a kind of towering suspension detection structure micro-vibration control device according to claim 1, it is characterised in that: further include
Electromagnetic signal reflecting plate (6), the electromagnetic signal reflecting plate (6) are steel plate, are placed on the middle part of the braced frame and run through
Entire control device blocks electromagnetic radiation to enter and leave, provides electromagnetic wave enclosed environment for test experience for shielding electromagnetic signal.
5. a kind of towering suspension detection structure micro-vibration control device according to claim 4, it is characterised in that: further include
Antistatic return air floor (9) achievees the purpose that antistatic for Charge dissipation, while playing to lower part building structure basis terrace
(10) lead to wind action.
6. a kind of towering suspension detection structure micro-vibration control device according to claim 5, it is characterised in that: the steel
Matter rigidity T stage (1) has certain mass, and designs for symmetrical structure, is rigidly promoted to promote total, optimizes mould
State distribution.
7. a kind of towering suspension detection structure micro-vibration control device according to claim 6, it is characterised in that: according to micro-
Meter level or Subnano-class vibration require, and carry out to steel rigidity T stage (1) the mesa supports thickness and T-type section thickness
Design.
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| CN110807228A (en) * | 2019-10-30 | 2020-02-18 | 中国中元国际工程有限公司 | Air floatation platform performance design method based on influence of aspect ratio factor |
| CN113846666A (en) * | 2021-12-01 | 2021-12-28 | 中国铁路设计集团有限公司 | Micro-vibration multiple control foundation and control method thereof |
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