CN105547622B - Double direction shear flows down the movable tension leg vortex-induced vibration test device in end - Google Patents
Double direction shear flows down the movable tension leg vortex-induced vibration test device in end Download PDFInfo
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- CN105547622B CN105547622B CN201510920144.3A CN201510920144A CN105547622B CN 105547622 B CN105547622 B CN 105547622B CN 201510920144 A CN201510920144 A CN 201510920144A CN 105547622 B CN105547622 B CN 105547622B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
Abstract
The present invention provides a kind of double direction shear of field of ocean engineering to flow down the movable tension leg vortex-induced vibration test device in end, including：Tension leg model mechanism, measurement analysis module, drive module, cantilever module, bottom supporting module, baffle module, sliding slot module and oscillation module.Tension leg model mechanism is fixed in cantilever module by fixing end, bottom supporting module, drive module, cantilever module vertical connection.Oscillation module is fixed in cantilever module, and baffle module is fixed by the bracket in cantilever module, and bottom supporting module is fixed on pond steel by high-strength bolt and lifts on bottom, and sliding slot module is bolted in the supporting module of bottom.Cantilever-rotating is driven by drive module.Each measuring instrument dispersed placement of analysis module is measured among pipe fitting model, cantilever module and oscillation module.The present invention is easy to disassemble, and complexity is low, and flexibility is high, can simulate real scale tension leg, table top movement, Shearing Flow.
Description
Technical field
The present invention relates to a kind of device of field of ocean engineering, is specifically soft in a kind of ocean engineering swimmer's pool
The movable tension leg vortex-induced vibration test device in property pipe fitting model end under double direction shear stream.
Background technology
Ocean interior estimates are a kind of typical severe sea conditions of the generally existing in the ocean of density stratification, it, which has, shakes
The features such as width is big, the duration is long, non-linear.For tension leg platform (TLP), the interior ripple of frequent activities not only can be to tension leg
Huge shock loading is produced, also it can be made to bear the effect of double direction shear stream and vortex-induced vibration occurs.So-called vortex-induced vibration, is
Refer to the column structure thing being in certain speed incoming, its both sides can occur alternately to rush down whirlpool, and cylinder can be generated be subject to whirlpool
The transverse direction and the fluctuation pressure of flow direction being associated with bleed off, Pulsating Flow muscle power can trigger the vibration of cylinder, the anti-mistake of vibration of cylinder
That again its wake structure can be changed.The problem of this fluidic structures thing interacts referred to as vortex-induced vibration.The whirlpool exciting of tension leg
Dynamic phenomenon can be reduced seriously its fatigue life, therefore there is an urgent need to be furtherd investigate for the problem, develop reliable tension force
Leg vortex-induced vibration forecasting procedure, help is provided for the engineering design of tension leg.
At present, domestic and international academia and engineering circles are less for the research of tension leg vortex-induced vibration phenomenon in interior wave current field,
Totally it is divided into model test and numerical simulation two ways, there are more problems, current experience for direct Numerical vortex-induced vibration
, there is the defects of low such as efficiency, low precision in model prediction software such as SHEAR7 etc., its forecast obtained result usually with experiment
As a result there is certain gap, this gap is even as high as one or several orders of magnitude, it is necessary to be assessed and corrected.By experiment side
Method can preferably study the vortex-induced vibration phenomenon of tension leg, be made some progress in the past period, but total
Say and still suffer from following shortcoming：1st, the vortex-induced vibration of small scale pipe fitting can only generally be simulated, it is difficult to effective to carry out real Reynolds
Vortex-induced vibration test under several.2nd, the vortex-induced vibration of tension leg in uniform flow field can only generally be simulated, it is impossible to simulate Shearing Flow
The vortex-induced vibration of middle tension leg.3rd, tension leg platform (TLP) top movements cannot be generally simulated, test data has certain limitation.4、
Device is complex, heavy, installation it is inconvenient, it is necessary to power of motor it is very big.
The content of the invention
The present invention is directed to deficiencies of the prior art, there is provided a kind of double direction shear flows down the movable tension force in end
Leg vortex-induced vibration test device, can simulate large-scale actual size tension leg, double direction shear stream and ocean platform top movements, tool
Have the advantages that easy to disassemble, complexity is low and flexibility is high.
The present invention is achieved by the following technical solutions.
A kind of double direction shear of field of ocean engineering flows down the movable tension leg vortex-induced vibration test device in end,
Including：Tension leg model mechanism, measurement analysis module, drive module, cantilever module, bottom supporting module, baffle module, sliding slot
Module and oscillation module；Wherein, the tension leg model mechanism is fixed in cantilever module, and the bottom supporting module is with driving
Dynamic model block vertical connection, the drive module and cantilever module vertical connection；The oscillation module is fixed in cantilever module, institute
State baffle module to be fixed in cantilever module, the sliding slot module is fixed in the supporting module of bottom, and the cantilever module passes through
Drive module drives rotation, and the measurement analysis module is arranged among tension leg model mechanism and cantilever module.
The double direction shear flows down the movable tension leg vortex-induced vibration test device in end and is integrally vertically arranged Yu Haiyang
In engineering swimmer's pool, the bottom supporting module that double direction shear flows down the movable tension leg vortex-induced vibration test device in end passes through
High-strength bolt is fixed on the steel lifting bottom of ocean engineering swimmer's pool, and the present invention is easy to disassemble, and complexity is low, flexibility
Height, can simulate real scale tension leg double direction shear flow field and ocean platform top movements.
Preferably, the tension leg model mechanism includes：Tension leg model and it is arranged at consolidating for tension leg model both ends
Fixed end, each of which fixing end include：First universal joint, three component instrument sensors, sliding axle, connecting plate, tension leg are solid
Determine connector, linear bearing, buffer spring and tension leg fixed seat, wherein：The both ends of tension leg anchor tip respectively with tension leg
One end of model and the first universal joint is connected, and the other end of the first universal joint is fixedly installed on three component instrument sensors, straight line
Three component instrument sensors are fixed in bearing one end, and are connected respectively with sliding axle and buffer spring, and linear bearing is arranged at tension leg
In fixed seat, tension leg fixed seat is fixed on the end of cantilever module by connecting plate.
Preferably, the mass ratio that the linear mass of the tension leg model arranges water with its unit length is 1: 1.
Preferably, the measurement analysis module includes：Measuring unit, underwater video record unit, computing unit and it is wirelessly transferred
Unit, wherein：Computing unit is arranged in the trailer computer room of ocean engineering swimmer's pool and is connected with wireless transmission unit, to pass
Video record unit and the wireless measurement signal of measuring unit output under water delivery, computing unit dock received wireless measurement letter in real time
Number stored and processed.
Preferably, the drive module includes：Change gear box, motor, drive shaft and drive gear, wherein：Gear teeth
Roller box both ends are connected with motor and drive shaft respectively, and drive shaft is connected with drive gear, and drive gear drives cantilever module
Rotate.
Preferably, motor, change gear box, drive gear, drive shaft are fixedly installed on the Cylindorical rod of bottom supporting module
It is internal.
Preferably, the speed reducing ratio of the change gear box is 40: 1.
Preferably, the cantilever module includes：Cantilever, steady brace, the first diagonal brace and the second diagonal brace, wherein：It is described outstanding
Arm is divided into horizontal boom section and vertical cantilever segment, and vertical cantilever segment passes through the first diagonal brace proof strength, the end of vertical cantilever segment
It is connected with the fixing end in tension leg model mechanism, the center of horizontal boom section passes through fixation with the Cylindorical rod of bottom supporting module
Device connects, and is connected between the bottom of cantilever and the bottom of fixing device by the second diagonal brace and steady brace, steady brace
Lower end on the face of sliding slot module contact with being respectively disposed with steel ball.
Preferably, the lower end of steady brace is respectively arranged on three faces that the annular concave sliding slot with sliding slot module contacts
There is steel ball, facilitate steady brace to rotate in circular track.Steady brace plays motion stabilization, prevents cantilever from rotating
During occur significantly to rock.Diagonal brace can improve structural strength.
Preferably, the cantilever uses hollow, rectangular block structure, internal height 94mm, external height 100mm, and width is
0.6m, horizontal span 5m.
Preferably, the horizontal boom section and vertical cantilever segment weld together.
Preferably, the baffle module includes：Bottom flow-stopping plate and side flow-stopping plate；Wherein, bottom flow-stopping plate passes through branch
Frame is fixed in horizontal boom section, and side flow-stopping plate is fixed on vertical cantilever segment.
Preferably, the sliding slot module includes：Chute supported base and sliding slot locking device, chute supported base pass through spiral shell
Bolt is fixed in the supporting module of bottom, and sliding slot locking device is bolted with chute supported base so as to form annular concave
Sliding slot, the steady brace of cantilever module are slided by steel ball in annular concave sliding slot.
Preferably, the bottom supporting module includes：Cylindorical rod and bottom base；Wherein：The inside of Cylindorical rod, which is placed, drives
Dynamic model block, the lower weld of Cylindorical rod is in bottom base；Sliding slot module is secured by bolts in bottom base upper end, bottom base
Seat is fixedly installed on the lifting bottom of ocean engineering swimmer's pool by high-strength bolt, and then makes double direction shear flow down end can to transport
Dynamic tension leg vortex-induced vibration test device is arranged in ocean engineering swimmer's pool.
Preferably, the oscillation module includes：Horizontal oscillations track, horizontal oscillations sliding block, the second universal joint and vibration electricity
Machine, wherein, the tension leg model mechanism is connected with horizontal oscillations sliding block by the second universal joint, and the horizontal oscillations sliding block connects
It is connected on the horizontal oscillations track, and can moves reciprocatingly on the horizontal oscillations track, the horizontal oscillations track
It is welded on the vertical cantilever segment of cantilever module, the vibration motor is installed on horizontal oscillations track, is existed for control slide block
Moving on rails.
Compared with prior art, advantages of the present invention includes：
1st, rotating device testing time of the present invention length, the stability of experimental data is good, accuracy is high；
2nd, the present invention can simulate more real marine environment, including double direction shear stream and ocean platform top movements,
And in true marine environment the characteristics of actual size pipe fitting large Reynold number, test method has significant progress than ever for this；
3rd, flexibility of the present invention is high, and the whirlpool exciting of tension leg under different platform forms of motion can be simulated by oscillation module
It is dynamic；
4th, apparatus of the present invention complexity is low, light weight, modularization and easy to loading and unloading, it is desirable to which power of motor is relatively low, in property
There can be rapid progress with the vortex-induced vibration test device of more conventional tension leg in terms of efficiency.
Brief description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is measurement analysis module schematic diagram.
Fig. 3 is the structure front view of drive module.
Fig. 4 is the structure diagram of cantilever module and baffle module.
Fig. 5 is the structure diagram of bottom supporting module.
Fig. 6 is the schematic diagram of sliding slot module.
Fig. 7 is the side view of fixing end in tension leg model mechanism.
Fig. 8 is the bottom view of fixing end in tension leg model mechanism.
Fig. 9 is oscillation module schematic diagram.
In figure：1 is tension leg model mechanism, and 2 be measurement analysis module, and 3 be drive module, and 4 be cantilever module, and 5 be gear
Flow module, 6 be bottom supporting module, and 7 be sliding slot module, and 8 be oscillation module, and 9 be measuring unit, and 10 be underwater video record unit,
11 be computing unit, and 12 be wireless transmission unit, and 13 be change gear box, and 14 be motor, and 15 be drive shaft, and 16 be sliding tooth
Wheel, 17 be steady brace, and 18 be cantilever, and 19 be diagonal brace, and 20 be bottom surface flow-stopping plate, and 21 be side flow-stopping plate, and 22 be Cylindorical rod, 23
It is chute supported base for bottom base, 24,25 sliding slot locking devices, 26 be tension leg model, and 27 be the first universal joint, and 28 are
Three component instrument sensors, 29 be sliding axle, and 30 be connecting plate, and 31 be tension leg anchor tip, and 32 be linear bearing, and 33 be buffering
Spring, 34 be horizontal oscillations track, and 35 be horizontal oscillations sliding block, and 36 be the second universal joint, and 37 be vibration motor.
Embodiment
Elaborate below to the embodiment of the present invention：The present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process.It should be pointed out that to those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Embodiment
Present embodiments provide a kind of double direction shear and flow down the movable tension leg vortex-induced vibration test device in end, wrap
Include：Tension leg model mechanism, measurement analysis module, drive module, cantilever module, bottom supporting module, baffle module, sliding slot mould
Block and oscillation module.Wherein, tension leg model mechanism is fixed in cantilever module by the fixing end of special designing, bottom branch
Hold mode block and drive module vertical connection, drive module and cantilever module vertical connection.Oscillation module is fixed in cantilever module,
Baffle module is fixed by the bracket in cantilever module.Sliding slot module is bolted in the supporting module of bottom.Bottom branch
Hold mode block is fixed on pond steel by high-strength bolt and lifts on bottom, drives cantilever module to rotate by drive module, measurement
Each measuring instrument dispersed placement of analysis module is among tension leg model mechanism and cantilever module and oscillation module.
Further, the tension leg model mechanism includes：Tension leg model and it is arranged at tension leg model both ends
Fixing end, each of which fixing end include the first universal joint, three component instrument sensors, sliding axle, connecting plate, tension leg
Anchor tip, linear bearing, buffer spring and tension leg fixed seat, wherein：The both ends of tension leg anchor tip respectively with tension force
One end of leg model and the first universal joint is connected, and the other end of the first universal joint is fixedly installed on three component instrument sensors, directly
Spool holds one end and fixes three component instrument sensors, and is connected respectively with sliding axle and buffer spring, and linear bearing is arranged at tension force
In leg fixed seat, tension leg fixed seat is fixed on the vertical cantilever segment end of cantilever module by connecting plate.
Further, the mass ratio that the linear mass of the tension leg model arranges water with its unit length is
1∶1。
Further, the measurement analysis module includes：Measuring unit, underwater video record unit, computing unit and wireless
Transmission unit, wherein：Computing unit is arranged in the trailer computer room of ocean engineering swimmer's pool and is connected with wireless transmission unit
To transmit the wireless measurement signal of underwater video record unit and measuring unit output, computing unit docks received wireless survey in real time
Amount signal is stored and processed.
Further, the drive module includes：Change gear box, motor, drive shaft, drive gear, wherein：Speed change
Gear-box both ends are connected with motor and drive shaft respectively, and drive shaft is connected with drive gear, and drive gear drives cantilever mould
Block rotates, and motor, change gear box, drive gear, drive shaft are fixedly installed in the Cylindorical rod of bottom supporting module
Portion.
Further, the speed reducing ratio of the change gear box is 40: 1.
Further, the cantilever module includes：Cantilever, steady brace, the first diagonal brace and the second diagonal brace, wherein：Institute
The cantilever stated uses hollow, rectangular block structure, and the internal height of hollow, rectangular block structure is 94mm, external height 100mm, wide
For 0.6m, horizontal span 5m；Cantilever is divided into horizontal boom section and vertical cantilever segment, and vertical cantilever segment is ensured using the first diagonal brace
Intensity, the end of vertical cantilever segment are connected with the fixing end in tension leg model mechanism, each section of cantilever (horizontal boom section and vertical
Cantilever segment) weld together.Cantilever center (center of horizontal boom section) is connected with Cylindorical rod by fixing device, jib foot
(bottom of horizontal boom section) and fixing device bottom are connected using the second diagonal brace and steady brace, the lower end of steady brace with
Steel ball is disposed with three faces of the annular concave sliding slot contact of sliding slot module, facilitates steady brace to be done in circular track and rotates
Movement.Steady brace plays motion stabilization, prevents from occurring significantly to rock in cantilever rotation process.It is strong that diagonal brace can improve structure
Degree.
Further, the baffle module includes：Bottom flow-stopping plate and side flow-stopping plate.Wherein bottom flow-stopping plate passes through
Stent is fixed in horizontal boom section, and side flow-stopping plate is fixed on vertical cantilever segment, available for mechanism below eliminating to top
The influence in flow field, builds good experiment flow fields environment.
Further, the bottom supporting module includes：Cylindorical rod and bottom base.Wherein：Put the inside of Cylindorical rod
Drive module is put, the lower weld of Cylindorical rod is in bottom base.Sliding slot module is secured by bolts in bottom base upper end, bottom
Portion's pedestal is fixedly installed on the lifting bottom of ocean engineering swimmer's pool by high-strength bolt.
Further, the sliding slot module includes：Chute supported base and sliding slot locking device, chute supported base lead to
Cross bolt to be fixed in the supporting module of bottom, sliding slot locking device is bolted with chute supported base so as to form ring-type
Spill sliding slot, the steady brace of cantilever module are slided by steel ball in annular concave sliding slot.
Further, the oscillation module includes：Horizontal oscillations track, horizontal oscillations sliding block, the second universal joint and shake
Motor is swung, wherein, the tension leg model mechanism is connected by the second universal joint with horizontal oscillations sliding block, and the horizontal oscillations are slided
Block is connected on the horizontal oscillations track, can be moved reciprocatingly on the horizontal oscillations track, the horizontal oscillations rail
Road is welded on the vertical cantilever segment of cantilever module, and the vibration motor is installed on horizontal oscillations track, for control slide block
Movement in orbit.
The present embodiment is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the present embodiment includes：Tension leg model mechanism 1, measurement analysis module 2, drive module 3, cantilever mould
Block 4, baffle module 5, bottom supporting module 6, sliding slot module 7 and oscillation module 8, wherein：Tension leg model mechanism 1 passes through spy
The fixing end very designed is fixed in cantilever module 4, then by being vertically arranged in the Cylindorical rod in ocean engineering swimmer's pool by bottom
Supporting module 6, drive module 3,4 vertical connection of cantilever module.Baffle module 5 is fixed by the bracket in cantilever module, bottom
Supporting module 6 is fixed on pond steel by high-strength bolt and lifts on bottom, drives cantilever beam to rotate by drive module 3.It is outstanding
The steady brace of arm module 4 is acted on by having slided motion stabilization in the sliding slot of sliding slot module 7.Measure each of analysis module 2
Measuring instrument dispersed placement is among pipe fitting model, cantilever module 4.Whole device is vertically arranged in ocean engineering swimmer's pool.
As shown in Fig. 2, the measurement analysis module 2 includes：Measuring unit 9, underwater video record unit 10, computing unit 11
With wireless transmission unit 12, wherein：Computing unit 11 is arranged in the computer room of the trailer of ocean engineering swimmer's pool and is passed with wireless
Defeated unit 12 is connected to transmit the wireless measurement signal of underwater video record unit 10 and the output of measuring unit 9, and computing unit 11 is real
When dock received wireless measurement signal and stored and processed.
As shown in figure 3, the drive module 3 includes：Change gear box 13, motor 14, drive shaft 15, drive gear
16, wherein：13 both ends of change gear box are connected with motor 14 and drive shaft 15 respectively, and drive shaft 15 is connected with drive gear 16
Connect, motor 14, change gear box 13, drive gear 16, drive shaft 15 are fixedly installed on inside Cylindorical rod.
The speed reducing ratio of the change gear box 13 is 40: 1.
As shown in figure 4, the cantilever module 4 includes：Steady brace 17, cantilever 18, diagonal brace 19, wherein：In cantilever 18
The heart and Cylindorical rod vertical connection, jib foot are connected using diagonal brace 19 and steady brace 17, steady brace 17 with annular concave
Steel ball is disposed with three faces of sliding slot contact, is rotated in sliding slot.The end of cantilever will be with tension leg model mechanism
In fixing device connection.The baffle module 5 includes segmentation and is fixed on the bottom surface flow-stopping plate 20 of horizontal boom section and fixes
In the side flow-stopping plate 21 of vertical cantilever segment.
As shown in figure 5, the bottom supporting module 6 includes：Cylindorical rod 22, bottom base 23.Wherein：Cylindorical rod 22
Lower part is connected by bolt with bottom base 23, and bottom base is fixedly installed on ocean engineering swimmer's pool by high-strength bolt
Lift on bottom.Drive module 3, which is fixed on, to be set inside Cylindorical rod 22.
As shown in fig. 6, the sliding slot module 7 includes chute supported base 24 and sliding slot locking device 25.Chute supported
Base 24 is fixed in bottom supporting module 6 by high-strength bolt, and sliding slot locking device 25 uses spiral shell with chute supported base 24
Tether and connect to form sliding slot.The steady brace 17 of cantilever module rotates in sliding slot.
As shown in Figure 7,8, the tension leg model mechanism includes：Tension leg model 26, the first universal joint 27, three component
Sensor 28, sliding axle 29, connecting plate 30, tension leg anchor tip 31, linear bearing 32, buffer spring 33, wherein：Tension leg
The one end of the both ends of anchor tip 31 respectively with 26 and first universal joint 27 of tension leg model is connected, the first universal joint 27 it is another
End is fixedly installed on three component instrument sensors 28, and three component instrument sensors 28 are fixed in 32 one end of linear bearing, and respectively with cunning
Moving axis 29 is connected with buffer spring 33.Overall tension leg fixing device is fixed on vertical cantilever segment end by connecting plate 30.
As shown in figure 9, the oscillation module 8 includes：Horizontal oscillations track 34, horizontal oscillations sliding block 35, second are universal
Section 36 and vibration motor 37, wherein, tension leg model mechanism 1 is connected by the second universal joint 36 with horizontal oscillations sliding block 35, institute
State horizontal oscillations sliding block 35 to be connected on the horizontal oscillations track 34, reciprocal fortune can be done on the horizontal oscillations track 34
It is dynamic.Horizontal oscillations track 34 is welded on vertical cantilever segment, and vibration motor 37 is installed on horizontal oscillations track, for controlling cunning
Block moves in orbit.
The making of the present embodiment and installation process are as follows：
Before testing, first according to the size, the actual size of pipe fitting, the concrete condition of measurement condition of ocean engineering swimmer's pool
With the suitable model scale ratio of economic Sexual behavior mode and measurement condition of test.According to whole test device strength control requirement with
And vibration control requirement determines the specific size and material of modules.It is as follows that each module gets out rear specific installation process.
On ground, assembling bottom supporting module 6 raises the lifting bottom of ocean engineering swimmer's pool after being completed, by bottom branch
The base of hold mode block 6 is fixed by bolts on lifting bottom.Then it is appropriate to reduce lifting bottom installation bottom cantilever arms module 4.Then will
On the bottom supporting module 6 of built-in drive module 3 is bolted on lifting platform bottom, then the sliding slot branch by sliding slot module 7
Support base 24 is bolted in bottom supporting module 6, then installs cantilever module 4, will first should be shaken when installing cantilever module 4
Swing module 8 to be fixed thereon, then steel ball is arranged on three faces that steady brace 17 is contacted with sliding slot, then place cantilever 18, make
It is connected in its Cylindorical rod 22 with bottom supporting module with the drive shaft 15 of motor, then places sliding slot locking device 25, sliding slot
Fixed between locking device 25 and chute supported base 24 with bolt, then baffle module 5 is fixed on cantilever 18.Installing
While stating module, the assembling tension leg model mechanism 1 on ground, and tension leg model mechanism 1 is fixed on cantilever 18 and vibration
In module 8.Finally installation measurement analysis module 2, the data cable in Cylindorical rod 22 is connected in measurement analysis module 2.
Computer real-time analysis software and image processing software are installed on the computer in measuring analysis module 2, so
The data cable come from the export of test pipe fitting both ends is connected on computer afterwards.At the same time the measuring instrument in test device is exported to come
Power cord connect with the mains.
Debugging apparatus after the completion of integral installation.It can be started after the completion of debugging according to specific operating mode and test specification
Test device is tested.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (9)
1. a kind of double direction shear flows down the movable tension leg vortex-induced vibration test device in end, it is characterised in that including：Tension force
Leg model mechanism, measurement analysis module, drive module, cantilever module, bottom supporting module, baffle module, sliding slot module and
Oscillation module；Wherein, the tension leg model mechanism is fixed in cantilever module, and the bottom supporting module is hung down with drive module
It is direct-connected to connect, the drive module and cantilever module vertical connection；The oscillation module is fixed in cantilever module, the baffle mould
Block is fixed in cantilever module, and the sliding slot module is fixed in the supporting module of bottom, and the cantilever module passes through drive module
Rotation is driven, the measurement analysis module is arranged among tension leg model mechanism and cantilever module；
The cantilever module includes：Cantilever, steady brace, the first diagonal brace and the second diagonal brace, wherein：The cantilever is divided into horizontal outstanding
Arm section and vertical cantilever segment, the vertical cantilever segment is by the first diagonal brace proof strength, and the end of the vertical cantilever segment is with opening
Li Tui models mechanism connects, and the center of the horizontal boom section is connected with bottom supporting module by fixing device, horizontal boom
Connected between the bottom of section and the bottom of fixing device by the second diagonal brace and steady brace, the lower end of the steady brace with
Steel ball is disposed with the face that sliding slot module is in contact.
2. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the tension leg model mechanism includes：Tension leg model and the fixing end for being arranged at tension leg model both ends, wherein often
One fixing end includes：First universal joint, three component instrument sensors, sliding axle, connecting plate, tension leg anchor tip, straight line
Bearing, buffer spring and tension leg fixed seat, wherein：The both ends of the tension leg anchor tip respectively with tension leg model and
One end of one universal joint is connected, and the other end of first universal joint is fixedly installed on three component instrument sensors, the straight line
Three component instrument sensors are fixed in one end of bearing, and are connected respectively with sliding axle and buffer spring, and the linear bearing is arranged at
In tension leg fixed seat, the tension leg fixed seat is fixed on the end of cantilever module by connecting plate.
3. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the measurement analysis module includes：Measuring unit, underwater video record unit, computing unit and wireless transmission unit, wherein：
The computing unit is connected with wireless transmission unit, is believed with transmitting the wireless measurement of underwater video record unit and measuring unit output
Number, the computing unit docks received wireless measurement signal and is stored and processed in real time.
4. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the drive module includes：Change gear box, motor, drive shaft and drive gear, wherein：The change gear box two
End is connected with motor and drive shaft respectively, and the drive shaft is connected with drive gear, and the drive gear drives cantilever mould
Block rotates.
5. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the cantilever uses hollow, rectangular block structure, and the internal height of the hollow, rectangular block structure is 94mm, and external height is
100mm, width 0.6m, horizontal span 5m；And/or
The horizontal boom section and vertical cantilever segment weld together.
6. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the baffle module includes：Bottom flow-stopping plate and side flow-stopping plate；Wherein, bottom flow-stopping plate is fixed by the bracket in water
On flat cantilever segment, side flow-stopping plate is fixed on vertical cantilever segment.
7. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the sliding slot module includes：Chute supported base and sliding slot locking device, the chute supported base are fixed on bottom branch
On hold mode block, the sliding slot locking device is connected with chute supported base so as to form annular concave sliding slot, cantilever module it is steady
Determine pillar to slide in annular concave sliding slot by steel ball.
8. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the bottom supporting module includes：Cylindorical rod and bottom base；Wherein：Drive module is placed in the inside of the Cylindorical rod,
The lower weld of the Cylindorical rod is in bottom base；The sliding slot module is fixed on the upper end of bottom base, and bottom base is solid
Surely it is arranged on the lifting bottom of ocean engineering swimmer's pool, and then double direction shear is flowed down the movable tension leg vortex-induced vibration in end
Test device is wholy set in ocean engineering swimmer's pool.
9. double direction shear according to claim 1 flows down the movable tension leg vortex-induced vibration test device in end, it is special
Sign is that the oscillation module includes：Horizontal oscillations track, horizontal oscillations sliding block, the second universal joint and vibration motor, wherein, institute
State tension leg model mechanism to be connected by the second universal joint with horizontal oscillations sliding block, the horizontal oscillations sliding block is connected to the water
On flat oscillating track, and it can move reciprocatingly on the horizontal oscillations track, the horizontal oscillations track welding is in cantilever
In module, the vibration motor is installed on horizontal oscillations track, is moved in orbit for control slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920144.3A CN105547622B (en) | 2015-12-10 | 2015-12-10 | Double direction shear flows down the movable tension leg vortex-induced vibration test device in end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920144.3A CN105547622B (en) | 2015-12-10 | 2015-12-10 | Double direction shear flows down the movable tension leg vortex-induced vibration test device in end |
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| CN102288376A (en) * | 2011-08-02 | 2011-12-21 | 上海交通大学 | Top-movable vortex-induced vibration rotating device for vertically-arranged vertical pipe under uniform flow and step flow |
| CN102410919A (en) * | 2011-08-02 | 2012-04-11 | 上海交通大学 | Rotating testing device for vortex-induced vibration of movable inclined riser at lower top of shear flow |
| CN102410920A (en) * | 2011-08-05 | 2012-04-11 | 上海交通大学 | Vortex induced vibration rotation testing device of inclined vertical pipe with movable top part under step shear flow |
| CN102967429A (en) * | 2012-11-06 | 2013-03-13 | 上海交通大学 | Device for simulating bidirectional self-oscillation under mutual interference of two stand column models under uniform flow |
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| CN102288376A (en) * | 2011-08-02 | 2011-12-21 | 上海交通大学 | Top-movable vortex-induced vibration rotating device for vertically-arranged vertical pipe under uniform flow and step flow |
| CN102410919A (en) * | 2011-08-02 | 2012-04-11 | 上海交通大学 | Rotating testing device for vortex-induced vibration of movable inclined riser at lower top of shear flow |
| CN102410920A (en) * | 2011-08-05 | 2012-04-11 | 上海交通大学 | Vortex induced vibration rotation testing device of inclined vertical pipe with movable top part under step shear flow |
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