CN106289718B - A kind of attenuating shock wave system that adjustable slope is high and application method - Google Patents
A kind of attenuating shock wave system that adjustable slope is high and application method Download PDFInfo
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- CN106289718B CN106289718B CN201610607148.0A CN201610607148A CN106289718B CN 106289718 B CN106289718 B CN 106289718B CN 201610607148 A CN201610607148 A CN 201610607148A CN 106289718 B CN106289718 B CN 106289718B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of attenuating shock wave systems and application method that adjustable slope is high, including wave absorber, the wave absorber includes bedframe, the bedframe both sides are all connected with Telescopic arc frame, it is connected with paraboloid between Telescopic arc frame and tilts strainer, described arc-shaped frame one end is rotatablely connected with bedframe, and the arc-shaped frame other end coordinates with lifting gear；Water-storing device is arranged in the strainer lower part, and water-storing device is connect with return pipe.The arc setting of wave absorber and gradient adjustability and high density reinforcing bar strainer are directed to the exchange of different waves, can increase wave absorption distance, expand the applicability to wave size and energy, improve wave absorption efficiency, meet economy principle.High density reinforcing bar strainer can ensure all to fall on water reserve after wave rushes to wave absorber completely and do not generate return water, and anti-non-return water impacts former wave, and experimental data is caused to go wrong.
Description
Technical field
The present invention relates to a kind of attenuating shock wave system and application method that adjustable slope is high, it is mainly used for eliminating examination in model test
Experiment device is to back wave caused by the blocking of wave.
Background technology
Model test is to reproduce a kind of rationally effective technology of complex engineering problems in the lab.Ocean, river etc.
Since area is larger, the destructive process of bottom side slope is not easy to observe water storage geological form, however sometimes for understanding in engineering
Its failure mechanism of bottom side slope under hydraulic action.Therefore, in order to reproduce this failure mode, can be arranged in the lab
Rational boundary condition, the process that it is destroyed using simplified modeling.The water storages geological form such as ocean is relative to list
A wave area is vast, and the unlimited body of half-plane can be reduced to waters, and wave is in surface free movement, however in the lab,
The movement of wave will necessarily be influenced by experimental provision boundary, be imitated to reduce experimental provision size caused by wave motion
It answers, it is necessary to take it rational measure, be influenced caused by reducing the non-empirical factors such as wave.
According to the viewpoint in hydrodynamics, as waveform is propagated forward, water surrounds flat under wave action as particle
Position after weighing apparatus moves in a circle, and the amplitude peak that wave generates in the horizontal plane is its radius, but its moving radius generates
Influence with depth increase and be gradually reduced, until influence eliminate.The boundary of experimental provision generates reflex to wave, instead
Ejected wave wave can do counter-movement in experimental provision, disturb the form and wave amplitude of former wave, cause complicated random wave, cause experiment up to not
To expected imagination.Above-mentioned unrest wave seldom exists in reality, and influence can be ignored, but real in the model of size limitation
In experiment device, influence cannot be ignored, it is therefore necessary to install wave absorber in experimental provision, reduce or even eliminate the shadow of random wave
It rings, improves experimental precision.
According to investigation, following three classes, the first kind can be divided into using universal wave absorber on the market：Simple setting
It is ramp-like, the simple wave absorber for being similar to the gravity type such as sandy beach, river shoal is formed, its advantage is that having both functional and economical
Property, the disadvantage is that using gravity wave absorption, if excessively high its return water speed that easily leads to of gradient setting is excessive, cause the shadow to effective wave
It rings, it is too low to cause wave absorber extension longer, model test size is caused to waste；Second class：It is laid on first kind slope
The coarse products such as nylon are as choke apparatus, its advantage is that wave absorbing function further strengthens, the disadvantage is that it is difficult to be laid with coarse material
Spend larger, block water to material, seepage of water it is more demanding；Third class is arranged square hole in a matrix fashion in slope surface, and wave absorbing function exists
Practical coastline and bank line are practical, and in the model test for having size to limit, wave absorbing function needs to be further increased.
The common disadvantage of above-mentioned material be only there is elimination effect to certain ranges or specific wave band, and for different wave bands its
Wave absorption ability is obviously insufficient.
Invention content
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of attenuating shock wave system that adjustable slope is high and
Application method, size and energy for wave can change the gradient of wave absorber, improve wave absorption efficiency, expand and are applicable in model
It encloses.
To achieve the above object, the present invention uses following technical proposals：
A kind of attenuating shock wave system that adjustable slope is high, including wave absorber, the wave absorber include bedframe, the bottom
Seat frame both sides are all connected with Telescopic arc frame, and paraboloid is connected between Telescopic arc frame and tilts strainer, the arc
Shape frame one end is rotatablely connected with bedframe, and the arc-shaped frame other end coordinates with lifting gear, and arc is driven by lifting gear
The gradient of the flexible adjustment wave absorber of frame；Water-storing device is arranged in the strainer lower part, and water-storing device is connect with return pipe.It will filter
Net is arranged on Telescopic arc frame, and strainer is skewed in paraboloid, and Telescopic arc frame can coordinate with lifting gear
The gradient of wave absorber is adjusted, wave absorption distance is increased, expands the applicability to wave size and energy, improves wave absorption efficiency.
The bedframe is L-type structure, and L-type structure bottom edge end is rotatablely connected with interlocking bar, the interlocking bar both ends
It is connect with arc-shaped frame one end；Bedframe is arranged to L-type structure, when bedframe both ends are connect with arc-shaped frame,
It can guarantee that arc-shaped frame and strainer are in certain radian, preferably ensure wave dissipation effect.
L-type structure vertical edge end is slidably connected with connecting rod, the connecting rod both ends with the arc-shaped frame other end
Connection；It when needing to adjust the height of arc-shaped frame, is slided on bedframe by connecting rod, arc-shaped frame movement is driven to adjust
It is whole.
The connecting rod lower part is connect with lifting gear, and lifting gear is set on bedframe；Lifting gear is arranged
It is slidably connected in connecting rod lower part, then by connecting rod and pedestal frame, connecting rod can be driven to slide and then drive by lifting gear
Arc-shaped frame adjustment height.
The arc-shaped frame includes the first tubular structure and the second tubular structure for being socketed on inside the first tubular structure, the
Two tubular structures can be slided along the first tubular structure inner wall；On first tubular structure and the second tubular structure side wall there are
With the straight joint of strainer secure fit；Two tubular structures to socket-connect, the tubulose knot that internal tubular structure can be externally are set
Structure slides, and then can be adjusted the gradient of wave absorber after coordinating with lifting gear, simple in structure, easy to adjust；Straight joint is set,
Keep the connection of strainer and arc-shaped frame more simple and reliable, and is also easier to when replacing strainer.
Preferably, the outer diameter of second tubular structure and the internal diameter of the first tubular structure are identical；Make the first tubular structure
And second do not have more gaps between tubular structure, keeps cooperation between the two more reliable, and can be rushed to avoid wave
Inside is entered by gap between the two when wave absorber, causes the difficulty of cleaning.
The water-storing device is the reverse pyramid structure being made of multiple inclined sides, and reverse pyramid structure bottom is returned
Water pipe connects；Water-storing device is arranged to reverse pyramid structure efficiency highest in the case where model test size limits, together
When in water-storing device bottom connect return pipe, the profundal zone of return water bottom of the tube and experimental rig connects, and water is flowed back into time examination
In experiment device, keep water quantity holding certain.
The lifting gear is connect with controller；Lifting gear is controlled by controller, i.e., wave absorber the gradient adjust by
Controller control, can prevent human factor in an experiment caused by influence, improve the accuracy of result.
Multiple speed reduction screens are set inside the return pipe；It prevents from flow from returning experimental provision bottom speed per hour to spend greatly, to bottom
The fluidised form of water has an impact.
Preferably, the grid direction of adjacent speed reduction screen is arranged in a crossed manner in 30~60 °；It can utmostly ensure subtracting for speed reduction screen
Effect reduces the kinetic energy that water generates under the effect of gravity.
A kind of application method for the attenuating shock wave system that adjustable slope is high, includes the following steps：
According to the wave size and energy of test requirements document, the strainer of proper density is selected；
Attenuating shock wave system is assembled, and adjusts the gradient of wave absorber using lifting gear according to wave size；
It is tested, when wave rushes to wave absorber, enters water-storing device via strainer, return water is carried out by return pipe.
The operation principle of the present invention is that：
Telescopic arc frame is set on bedframe, strainer is set between arc-shaped frame, scalable frame one end can
It can be achieved to adjust wave absorber according to wave situations around with the rotation of the junction of bedframe, the other end and lifting gear cooperation
The gradient increases wave absorption distance, improves wave absorption efficiency；And the setting of strainer can flow into water storage dress when wave rushes to wave absorber
It sets, not will produce return water, avoid influence of the return water to former wave, ensure that the accuracy of experiment.
Beneficial effects of the present invention are：
(1) the arc setting of wave absorber and gradient adjustability and high density reinforcing bar strainer are directed to the tune of different waves
It changes, wave absorption distance can be increased, expand the applicability to wave size and energy, improve wave absorption efficiency, meet economy original
Reason.
(2) the composable dismounting property of all types of devices, such as：Wave absorber, water recovery apparatus, lifting gear etc. can improve
The service life of experimental provision.
(3) high density reinforcing bar strainer can ensure all to fall on water reserve after wave rushes to wave absorber completely and do not produce
Raw return water, anti-non-return water impact former wave, and experimental data is caused to go wrong.
(4) adjusting of wave absorber height is controlled by computer, can establish the positive correlation of wave and wave absorber height
Relationship, particularly with large complicated wave simulation experiment can prevent human factor in an experiment caused by influence, improve knot
The accuracy of fruit.
(5) setting of water recovery apparatus can ensure the constant of water in model test apparatus to the greatest extent, avoid water
Variation to experimental result bring to obtain influence；And setting intersects multi-stage speed-reducing net in return pipe, can reduce high speed return water
Influence to deep flow-shape avoids interference of the non-experimental variable to experiment.
Description of the drawings
Fig. 1 attenuating shock wave system overall schematics of the present invention；
Fig. 2 Telescopic arc frame schematic diagrames of the present invention；
Multiple speed reduction screen schematic diagrames in Fig. 3 return pipes of the present invention；
In figure, 1 bedframe, 2 strainers, 3 Telescopic arc frames, 4 water-storing devices, 5 bearings, 6 interlocking bar, 7 lifting dresses
It sets, 8 controllers, 9 return pipes, 10 speed reduction screens, 11 connecting lines, 12 butt welds, 13 straight joints, 14 connecting rods.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
It is mainly made of wave absorber, water recovery apparatus, lifting gear as shown in Figure 1, the high attenuating shock wave system in slope is adjusted.
Wave absorber is made of bedframe 1, strainer 2, Telescopic arc frame 3, and bedframe 1 uses monoblock steel plate
It is punched, resistance to compression and bending stiffness can be improved to a certain extent, enough bolts hole are set on bedframe 1, for pacifying
Telescopic arc frame 3, lifting gear and water recovery apparatus are filled, 1 front part sides bolt fixing bearing 5 of bedframe carries joggle
The interlocking bar 6 of shrinkage pool passes through bearing 5, can be rotated with bearing 5, and the two forms tumbler；Strainer 2 is fixed on by interior frame can
In the straight joint 13 of flexible arc-shaped frame 3,3 front end of Telescopic arc frame can be connected to one with the joggle shrinkage pool in interlocking bar 6
It rises, with tumbler, the lifting gear coordinated movement of various economic factors.
Bedframe 1 is L-type structure, and L-type structure bottom edge end is rotatablely connected by bearing 5 and interlocking bar 6, interlocking bar 6
Both ends are connect with 3 one end of Telescopic arc frame, and L-type structure vertical edge end is slidably connected with connecting rod 14,14 liang of connecting rod
End is connect with 3 other end of Telescopic arc frame；Bedframe 1 is arranged to L-type structure, in 1 both ends of bedframe and arc
When shape frame 3 connects, it is ensured that arc-shaped frame 3 and strainer 2 preferably ensure wave dissipation effect in certain radian.It is needing to adjust
It when the height of arc-shaped frame 3, is slided on bedframe 1 by connecting rod 14, drives the movement adjustment of arc-shaped frame 3.Connecting rod 14
Lower part is connect with lifting gear 7, and lifting gear 7 is set on bedframe 1；Lifting gear is arranged in 14 lower part of connecting rod,
It is slidably connected again by connecting rod 14 and bedframe 1, connecting rod can be driven to slide adjustment height along bedframe 1 by lifting gear 7
Degree, and then drive arc-shaped frame 3 flexible, adjust the gradient.
Water recovery apparatus is by mounted on 2 lower section of strainer there is the water-storing device 4 at inclination angle and profound return pipe 9 to form, water storage dress
It is in inverted pyramid shape to set 4, and 4 bottom of water-storing device is connect with profound return pipe 9,9 bottom of return pipe and model test frame deep water
It is connected at position, water is flowed back into experimental provision in time, keeps water quantity holding certain, the flow after deceleration is returned to experiment system in time
In system, water variation influence caused by experimental data is prevented.
The water-storing device 4 of reverse pyramid is welded by butt weld 12 by the steel plate at four pieces of inclination angles at 45 °,
Efficiency highest in the case that model test size limits.
9 inner end arranged for interval multi-stage speed-reducing net 10 of return pipe, 10 grid of adjacent speed reduction screen intersects in 45 ° places (such as Fig. 3
It is shown), the kinetic energy that water generates under the effect of gravity can be utmostly reduced, prevents flow from returning experimental provision bottom speed per hour and spends
Greatly, the fluidised form of bottom water is had an impact.
Lifting gear is made of controller 8 and lifting gear 7, and controller 8 and lifting gear 7 are connected by connecting line 11
It connects, lifting gear 7 drives Telescopic arc frame 3 to be raised and lowered under the control of the controller 8, causes the lifting of wave absorber
The high change with slope.
The program that controller 8 has been debugged according to true wave size according to trial scale, to the size and energy of different waves
Amount adjusts the lifting of lifting gear 7 at any time, drives Telescopic arc frame 3 flexible with this, causes lifting and the slope of wave absorber
High change ensures that wave absorption efficiency reaches highest.Lifting gear 7 uses hydraulic press in the present invention program, can also use other
Such as cylinder, electric cylinders, elevator lifting gear.
In the present invention program strainer 2 use high density reinforcing bar strainer, for stainless steel establishment composition, for wave size and
Energy selects the reinforcing bar strainer of different densities；Telescopic arc steel pipe frame is that, diameter identical by radian be different and inside tube wall
It is provided with the steel pipe composition of straight joint.
As shown in Fig. 2, Telescopic arc frame 3 is identical by two radians, inside and outside aperture difference and is provided in tube wall logical
The steel pipe of seam 13 forms, and strainer 2 uses the stainless steel of different densities for different flow size and energy in the present invention program
Strainer is connect with Telescopic arc frame 3 at straight joint 13, and bearing 5 and interlocking bar 6 pass through shrinkage pool with Telescopic arc frame 3
Joggle together and is bolted on bedframe 1, and the gradient of wave absorber is adjusted with lifting gear.
Outer diameter of steel pipes is equal with outer steel pipe internal diameter in Telescopic arc frame 3, and the two is in the feelings for keeping 13 1 lines of straight joint
It links together under condition, plays telescopic action, can cooperate with lifting gear.
The application method of the adjustable high attenuating shock wave system in slope, includes the following steps：
According to the wave size and energy of test requirements document, the strainer 2 of proper density is selected；
Attenuating shock wave system is assembled, and adjusts the gradient of wave absorber using lifting gear according to wave size；
It is tested, when wave rushes to wave absorber, enters water-storing device 4 via strainer 2, return water is carried out by return pipe 9.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (9)
1. a kind of attenuating shock wave system that adjustable slope is high, characterized in that including wave absorber, the wave absorber includes base frames
Frame, the bedframe both sides are all connected with Telescopic arc frame, and paraboloid is connected between Telescopic arc frame and tilts filter
Net, described arc-shaped frame one end are rotatablely connected with bedframe, and the arc-shaped frame other end coordinates with lifting gear；Under the strainer
Water-storing device is arranged in portion, and water-storing device is connect with return pipe；
The bedframe is L-type structure, and L-type structure bottom edge end and interlocking bar are rotatablely connected, the interlocking bar both ends with
Arc-shaped frame one end connects.
2. attenuating shock wave system as described in claim 1, characterized in that L-type structure vertical edge end is slidably connected with connecting rod,
The connecting rod both ends are connect with the arc-shaped frame other end.
3. attenuating shock wave system as claimed in claim 2, characterized in that the connecting rod lower part is connect with lifting gear, lifting dress
It installs and is placed on bedframe.
4. attenuating shock wave system as described in claim 1, characterized in that the arc-shaped frame includes the first tubular structure and is socketed on
The second tubular structure inside first tubular structure, the second tubular structure can be slided along the first tubular structure inner wall.
5. attenuating shock wave system as claimed in claim 4, characterized in that on first tubular structure and the second tubular structure side wall
There are the straight joints with strainer secure fit；The outer diameter of second tubular structure and the internal diameter of the first tubular structure are identical.
6. attenuating shock wave system as described in claim 1, characterized in that the water-storing device is to be fallen by what multiple inclined sides formed
Pyramid structure, reverse pyramid structure bottom are connect with return pipe.
7. attenuating shock wave system as described in claim 1, characterized in that the lifting gear is connect with controller.
8. attenuating shock wave system as described in claim 1, characterized in that multiple speed reduction screens are arranged inside the return pipe；It is adjacent to subtract
The grid direction of speed net is arranged in a crossed manner in 30~60 °.
9. the application method of attenuating shock wave system as described in claim 1, characterized in that include the following steps：
According to the wave size and energy of test requirements document, the strainer of proper density is selected；
Attenuating shock wave system is assembled, and adjusts the gradient of wave absorber using lifting gear according to wave size；
It is tested, when wave rushes to wave absorber, enters water-storing device via strainer, return water is carried out by return pipe.
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| CN201610607148.0A CN106289718B (en) | 2016-07-28 | 2016-07-28 | A kind of attenuating shock wave system that adjustable slope is high and application method |
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| CN106289718B true CN106289718B (en) | 2018-11-09 |
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| CN107727348A (en) * | 2017-11-16 | 2018-02-23 | 云南省交通规划设计研究院 | It is related to the Large-scale Shaking Table Test wave absorber and its test method of storehouse water effect |
| CN108731911B (en) * | 2018-05-23 | 2019-10-29 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of pool edge Liftable type wave absorber |
| CN109322274A (en) * | 2018-11-14 | 2019-02-12 | 山东科技大学 | A kind of ramp type wave absorber and method |
| CN109813512B (en) * | 2018-12-19 | 2020-11-20 | 国网江苏省电力有限公司经济技术研究院 | Wave absorbing device for centrifuge model box |
| CN109506890A (en) * | 2019-01-07 | 2019-03-22 | 上海交通大学 | A kind of wave absorber for wave flume test |
| CN110683015B (en) * | 2019-10-22 | 2021-08-20 | 哈尔滨工程大学 | Lifting wave-absorbing device for reducing side wall effect of ship towing tank |
| CN111442904B (en) * | 2020-04-01 | 2024-10-15 | 天津大学 | Simulation island reef flat wave energy dissipation hydrodynamic force experimental device |
| CN115506299B (en) * | 2022-10-27 | 2024-08-20 | 河海大学 | Wave eliminating device and wave eliminating method of variable water level landslide surge physical model |
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