CN104502058B - Elongated standpipe dynamic response device is measured under a kind of shear flow - Google Patents
Elongated standpipe dynamic response device is measured under a kind of shear flow Download PDFInfo
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- CN104502058B CN104502058B CN201410723134.6A CN201410723134A CN104502058B CN 104502058 B CN104502058 B CN 104502058B CN 201410723134 A CN201410723134 A CN 201410723134A CN 104502058 B CN104502058 B CN 104502058B
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Abstract
The present invention, which is disclosed, measures elongated standpipe dynamic response device under a kind of shear flow, including deep sea vertical pipe module, top boundary module, bottom boundary module, stuck-module, top slide module, and bottom stuck-module measures analysis and Control module, wherein：Deep sea vertical pipe module two ends are connected with top boundary module and bottom boundary module respectively, stuck-module is connected with top boundary module and top slide module, top slide module is connected with trailer bottom fixing end, bottom stuck-module is connected with the small false bottom of bottom boundary module and pond, deep sea vertical pipe module respectively with stuck-module, top slide module and bottom stuck-module are in approximately the same plane, measure analysis and Control module respectively with deep sea vertical pipe module, top boundary module, bottom boundary module, stuck-module, top slide module, bottom stuck-module is connected.Apparatus of the present invention, it is intended to analyze overall vortex-induced vibration response characteristic of the slender flexible standpipe under shear flow effect.
Description
Technical field
The present invention relates to ocean engineering field, more particularly to elongated standpipe dynamic response is measured under a kind of shear flow, together
When monitoring vortex-induced vibration (VIV) experimental provision.
Background technology
In the presence of stormy waves stream, marine floating type works will drive catenary riser to make periodic reverse fortune in water
Dynamic, so as to produce Relative Oscillation in the standpipe direction of motion to flow, " interval is occurred for excitation standpipe pendency section by this vibration to flow
The vortex-induced vibration of property ".In recent years, start largely to use catenary riser with the exploitation of deep-sea oil system, in engineering.It is deep
Standpipe in water environment can be considered elongated flexible structure, and now small deformation is theoretical is no longer applicable, and this causes the vortex-induced vibration of standpipe
Problem is more protruded, therefore is for the analysis of the overall vortex-induced vibration response characteristic under the effect of slender flexible standpipe top platform
Can it be applied to the key point of engineering practice.
In the past forecast slender marine structures vortex-induced vibration harm most common method be numerical computations SHEAR7,
VIVA, VIVANA, this method that load and response are predicted by theoretical formula still have very big uncertainty so far.Mesh
Before untill, be exactly model test method to one of most important method of research of flexible pipe vortex-induced vibration phenomenon.In model test
It was observed that phenomenon closer to nature truth.By the retrieval to prior art, riser model experiment typically exists
Pull in ocean engineering swimmer's pool and carry out, what is had is carried out in annular water tank, what is had carries out vortex-induced vibration with towboat dragging standpipe
Test.It is published in paper " the Experiments with a during " Applied Ocean Research (2013) " 43 is printed
(the slender flexible standpipe model in towing basin is real by steel catenary riser model in a towing tank "
Test), the steady flow condition around standpipe is simulated by running the compartment being connected with standpipe in towing basin, is pacified on standpipe
Fill the state that miniature acceleration measuring instrument monitors standpipe.Analyze such a measuring technology, find its not foot point be：1st, in view of dragging
The depth in pond is draged, the vortex-induced vibration of small yardstick pipe fitting can only be typically simulated, it is difficult to swashed in the whirlpool effectively carried out under real Reynolds number
Vibration-testing；2nd, the monitoring device under water arranged around standpipe is not easy to, can not be adjusted when carrying out the test of sloping wave type riser model
Save the shape of standpipe；3rd, the forced oscillation experiment under certain flow rate can not be carried out；The 4th, standpipe process is installed in an experiment more complicated；
5th, the motion of ocean platform can not effectively be simulated.
The content of the invention
For technical problem present in above-mentioned prior art, the present invention proposes that elongated standpipe is measured under a kind of shear flow to be moved
Force-responsive, while monitoring VIV device, it is intended to analyze overall vortex-induced vibration response of the slender flexible standpipe under shear flow effect
Characteristic.
To reach above-mentioned purpose, the technical solution adopted in the present invention is as follows：
Elongated standpipe dynamic response device, including deep sea vertical pipe module, top boundary module, bottom are measured under a kind of shear flow
Portion's boundary module, stuck-module, top slide module, bottom stuck-module measures analysis and Control module, wherein：Deep sea vertical pipe
Module two ends are connected with top boundary module and bottom boundary module respectively, and stuck-module is slided with top boundary module and top
Dynamic model block is connected, and top slide module is connected with trailer bottom fixing end, bottom stuck-module and bottom boundary module and
The small false bottom in pond is connected, wherein, deep sea vertical pipe module exists with stuck-module, top slide module and bottom stuck-module respectively
In approximately the same plane, measurement analysis and Control module respectively with deep sea vertical pipe module, top boundary module, bottom boundary module, Gu
Cover half block, top slide module, bottom stuck-module is connected.
The deep sea vertical pipe module includes：Deep sea vertical pipe model, wherein fibre optical sensor, fibre optical sensor are arranged in deep-sea
On standpipe, the top of standpipe is connected with top boundary module, and the bottom of standpipe is connected with bottom boundary module.
Described top boundary module includes：Top clamp outer rim, top clamp bottom plate, the first backing plate, the first universal joint
Fixed plate, the first universal joint tumbler, the second universal joint fixed plate, the one or three component instrument fixed plate, the one or three component instrument,
One adjustment component, the first voussoir, wherein top clamp outer rim are connected with deep sea vertical pipe model, and both push up in the same plane
Portion's clamp bottom board and top clamp outer rim are affixed, and are connected with the first backing plate, the first universal joint fixed plate and the first backing plate and
First universal joint tumbler is connected, and the first universal joint tumbler is fixed with the first universal joint fixed plate and the second universal joint
Plate is affixed, the second universal joint fixed plate and the one or three component instrument fixed plate side connection, the one or three component instrument fixed plate it is another
Side and the connection of the one or three component instrument, the end of the one or three component instrument are connected with the first adjustment component, and first adjusts the another of component
Side is fixed on the first voussoir, and the side of the first voussoir is fixed on stuck-module.
Described bottom boundary module includes：Bottom jig outer rim, bottom jig bottom plate, the second backing plate, the 3rd universal joint
Fixed plate, the second universal joint tumbler, the 4th universal joint fixed plate, the two or three component instrument fixed plate, the two or three component instrument, bottom
Portion's fixed plate, wherein bottom jig outer rim are connected with deep sea vertical pipe model, both in the same plane, bottom jig bottom plate with
Bottom jig outer rim is affixed, and affixed with the second backing plate, and the 3rd universal joint fixed plate is rotated with the second backing plate and the second universal joint
Device is connected, and the second universal joint tumbler and the 3rd universal joint fixed plate and the 4th universal joint fixed plate are affixed, and the 40000th
To section fixed plate and the connection of the two or three component instrument fixed plate side, the opposite side and the two or three component of the two or three component instrument fixed plate
Instrument is connected, and the end of the two or three component instrument is connected with bottom fixed board, and bottom fixed board is welded on the stuck-module of bottom.
Described stuck-module includes：Radome fairing, vertical fixing plate and vertical fixed block, described vertical fixing plate are installed
On the first sliding block of top slide module, vertical fixed block is slidably fitted with thereon, both sides are separately installed with radome fairing, described
Vertical fixed block and top boundary module Joint.
Described top slide module includes：First Power Component, first flange device, the first sliding block, the first guide chain, the
One sliding rail, the first support frame, wherein the first Power Component is connected by first flange device with the first sliding rail, its
Rotary shaft is connected on the first sliding block by the first guide chain, and the first sliding block is slidably supported on the first sliding rail, and with consolidating
Cover half block is connected.
Described bottom stuck-module includes：Small false bottom panel, panel benefit plate, panel contiguous block, the second Power Component, the
Two flange apparatus, the second contiguous block, the second guide chain, bottom trapped orbit, the second support frame, the bottom of its medium and small false bottom panel connects
It is connected in bottom boundary module, panel contiguous block is welded on the underface of small false bottom panel, and plate is mended with two pieces of panels and is connected,
Panel mends plate weld on the second contiguous block, and the second Power Component is connected by second flange device with bottom trapped orbit,
Its rotary shaft is connected on the second contiguous block by the second guide chain, and the second contiguous block is slidably supported on the trapped orbit of bottom.
Described measurement analysis and Control module includes：Data collection processor, motion controller and display, wherein：Number
According to the input and the Fibre Optical Sensor of the top boundary module, bottom boundary module and deep sea vertical pipe module of Acquisition Processor
Device is connected, and its output end is connected with display；Motion controller includes motion control output window and image display port,
Motion control output window is connected with the top slide module, bottom stuck-module, image display port and display phase
Connection.
The present invention has the advantage that as follows with good effect：
1st, the present invention can realize vortex-induced vibration test of the standpipe under shear flow effect；
2nd, the present invention can make full use of the large-scale crucial safety coefficient installed of the lifting bottom increase of ocean engineering swimmer's pool；
3rd, the present invention can make full use of the real Reynolds number whirlpool exciting of the Simulation of depth large-size pipe of ocean engineering swimmer's pool
It is dynamic；
4th, the present invention can make full use of the width of ocean engineering swimmer's pool to be monitored in real time in large-size pipe periphery arrangement and set
It is standby, need to be adjusted the shape of model according to different；
5th, the present invention uses modularized design, and advantage is to be easily installed, and is easy to upgrading and change, and meet different work(
It can require；
6th, the present invention can simulate motion of the standpipe under shear flow effect, carry out more real vortex-induced vibration test.
Brief description of the drawings
Fig. 1 is the structural representation for the experimental provision that the present invention is provided；
Fig. 2 is the top structure figure for the experimental provision that the present invention is provided；
Fig. 3 is the chart at the bottom of for the experimental provision that the present invention is provided；
Fig. 4 is the structural representation for the deep sea vertical pipe module that the present invention is provided；
Fig. 5 is the structural representation for the top boundary module that the present invention is provided；
Fig. 6 is the structural representation for the bottom boundary module that the present invention is provided；
Fig. 7 is the side view for the stuck-module that the present invention is provided；
Fig. 8 is the structural representation for the top slide module that the present invention is provided；
Fig. 9 is the side view for the top slide module that the present invention is provided；
Figure 10 is the structural representation for the bottom stuck-module that the present invention is provided；
Figure 11 is the partial schematic diagram for the bottom stuck-module that the present invention is provided.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the present invention
Protection domain.
As shown in Figure 1, Figure 2 and Figure 3, the experimental provision that the present invention is provided includes：Deep sea vertical pipe module 1, top sides
Boundary's module 2, bottom boundary module 3, stuck-module 4, top slide module 5, bottom stuck-module 6 measures analysis and Control module
7, wherein：The top of the neutral tube of deep sea vertical pipe module 1 is connected with top boundary module 2, the bottom of standpipe and bottom boundary mould
Block 3 is connected, and wherein the fixture outer rim in top boundary module 2 is connected by screw with deep sea vertical pipe module 1, top boundary
Module 2 is fixed on stuck-module 4, and the fixture outer rim in bottom boundary module 3 is connected by screw with deep sea vertical pipe module 1
Connect, bottom fixed board is welded on bottom stuck-module 6, one end in stuck-module 4 is arranged in top slide module 5, hang down
Straight fixed block and the fast Joint of first wedge in top boundary module, top slide module are connected with one end of trailer, bottom
The bottom of stuck-module 6 is connected in bottom boundary module 3, and measurement analysis and Control module 7 is placed on trailer.
As shown in figure 4, deep sea vertical pipe module, which includes 1, includes deep sea vertical pipe model 9, wherein fibre optical sensor 8, Fibre Optical Sensor
Device 8 is arranged on deep sea vertical pipe model 9, and the top of deep sea vertical pipe model 9 is connected with top boundary module 2, deep sea vertical pipe mould
The bottom of type 9 is connected with bottom boundary module 3.
As shown in figure 5, top boundary module 2 includes：Top clamp outer rim 10, screw 11, top clamp bottom plate 12, first
Backing plate 13, the first universal joint fixed plate 14, the first universal joint tumbler 15, the component of the second universal joint fixed plate the 16, the 1st
The component instrument 18 of instrument fixed plate the 17, the 1st, the first adjustment component 19, first wedge fast 20, wherein top clamp outer rim 10 pass through spiral shell
Silk 11 is connected with deep sea vertical pipe model 9, both in the same plane, top clamp bottom plate 12 is consolidated with top clamp outer rim 11
Connect, be connected with the first backing plate 13 with screw 11, the first universal joint fixed plate 14 and the first backing plate 13 and the first universal joint are rotated
Device 15 is connected, and the first universal joint tumbler 15 and the first universal joint fixed plate 14 and the second universal joint fixed plate are affixed
16, the second universal joint fixed plate 16 and the side of three component instrument fixed plate 17 are connected, the opposite side and three of three component instrument fixed plates 17
Component instrument 18 is connected, and the end of three component instrument 18 is connected with the first adjustment component 19, and the opposite side of the first adjustment component 19 is consolidated
It is connected in first wedge fast 20, the side of first wedge fast 20 is fixed on the vertical fixed block 33 in stuck-module 4.
As shown in fig. 6, bottom boundary module 3 includes：Bottom jig outer rim 21, screw 22, bottom jig bottom plate 23, second
Backing plate 24, the 3rd universal joint fixed plate 25, the second universal joint tumbler 26, the 4th universal joint fixed plate 27, the two or three component
The component instrument 29 of instrument fixed plate the 28, the 2nd 3, bottom fixed board 30, wherein bottom jig outer rim 21 pass through screw 22 and deep sea vertical pipe
Model 9 is connected, both in the same plane, bottom jig bottom plate 23 and bottom jig outer rim 21 are affixed, with the second backing plate 24
Affixed, the 3rd universal joint fixed plate 25 is connected with the second backing plate 24 and the second universal joint tumbler 26, and the second universal joint turns
Dynamic device 26 and the 3rd universal joint fixed plate 25 and the 4th universal joint fixed plate 27 are affixed, the 4th universal joint fixed plate 27 and second
The side of three component instrument fixed plate 28 is connected, and the opposite side and three component instrument 29 of three component instrument fixed plates 28 are connected, three component instrument 29
End be connected with bottom fixed board 30, bottom fixed board 30 is welded on the small false bottom panel 40 of bottom stuck-module 6.
As shown in fig. 7, stuck-module 4 includes：Radome fairing 31, vertical fixing plate 32 and vertical fixed block 33；Described hangs down
Straight fixed plate 32 is arranged on the first sliding block 36 of top slide module 5, and vertical fixed block 33, both sides point are slidably fitted with thereon
Radome fairing 31, described vertical fixed block 33 and fast 20 Joint of first wedge in top boundary module 2 are not installed.
As shown in Figure 8, Figure 9, top slide module 5 includes：First Power Component 34, first flange device 35, first slides
Block 36, the first guide chain 37, the first sliding rail 38, the first support frame 39, wherein the first Power Component 34 is filled by first flange
Put 35 with the first sliding rail 38 to be connected, its rotary shaft is connected on the first sliding block 36 by the first guide chain 37, the first sliding block
36 are slidably supported on the first sliding rail 38, and are connected with the vertical fixing plate 32 on stuck-module 4, the first support frame
39 are fixed in measurement analysis and Control module 7, interlock it.
As shown in Figure 10, Figure 11, bottom stuck-module 6 includes：Small false bottom panel 40, panel mends plate 41, panel contiguous block
42, the second Power Component 43, second flange device 44, the second contiguous block 45, the second guide chain 46, bottom trapped orbit 47, second
Support frame 48, the bottom of its medium and small false bottom panel 40 is connected on the bottom fixed board 30 in bottom boundary module 3, panel connection
Block 42 is welded on the underface of small false bottom panel 40, and is connected with two blocks of panels benefit plates 41, and panel mends plate 1 and is welded on the second company
Connect on block 45, remaining form of bottom stuck-module 6 is similar with the form of top slide module 5, specifically, the second Power Component 43
It is connected by second flange device 44 with bottom trapped orbit 47, its rotary shaft is connected to the second connection by the second guide chain 46
On block 45, the second contiguous block 45 is slidably supported on bottom trapped orbit 47.Second support frame 48 is supported on the false bottom in pond.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. elongated standpipe dynamic response device is measured under a kind of shear flow, it is characterised in that including deep sea vertical pipe module, top sides
Boundary's module, bottom boundary module, stuck-module, top slide module, bottom stuck-module measures analysis and Control module, wherein：
Deep sea vertical pipe module two ends are connected with top boundary module and bottom boundary module respectively, stuck-module and top boundary module
It is connected with top slide module, top slide module is connected with trailer bottom fixing end, bottom stuck-module and bottom sides
Boundary's module is connected with the small false bottom in pond, wherein, deep sea vertical pipe module is consolidated with stuck-module, top slide module and bottom respectively
Cover half block in approximately the same plane, measurement analysis and Control module respectively with deep sea vertical pipe module, top boundary module, bottom boundary
Module, stuck-module, top slide module, bottom stuck-module is connected；Described top boundary module includes：Top clamp
Outer rim, top clamp bottom plate, the first backing plate, the first universal joint fixed plate, the first universal joint tumbler, the second universal joint are fixed
Plate, the one or three component instrument fixed plate, the one or three component instrument, the first adjustment component, wherein the first voussoir, top clamp outer rim and depth
Extra large standpipe module is connected, both in the same plane, top clamp bottom plate and top clamp outer rim are affixed, and with the first backing plate
It is connected, the first universal joint fixed plate is connected with the first backing plate and the first universal joint tumbler, the first universal joint rotates dress
Put affixed with the first universal joint fixed plate and the second universal joint fixed plate, the second universal joint fixed plate and the one or three component instrument are fixed
Plate side connect, the opposite side of the one or three component instrument fixed plate and the one or three component instrument connection, the end of the one or three component instrument with
First adjustment component is connected, and the opposite side of the first adjustment component is fixed on the first voussoir, and the side of the first voussoir is fixed on
On stuck-module.
2. elongated standpipe dynamic response device is measured under shear flow according to claim 1, it is characterised in that the deep-sea
Standpipe module includes：Deep sea vertical pipe model, wherein fibre optical sensor, fibre optical sensor are arranged on deep sea vertical pipe model, deep-sea
The top of riser model is connected with top boundary module, and the bottom of deep sea vertical pipe model is connected with bottom boundary module.
3. elongated standpipe dynamic response device is measured under shear flow according to claim 1, it is characterised in that described bottom
Portion's boundary module includes：Bottom jig outer rim, bottom jig bottom plate, the second backing plate, the 3rd universal joint fixed plate, the second universal joint
Tumbler, the 4th universal joint fixed plate, the two or three component instrument fixed plate, the two or three component instrument, wherein bottom fixed board, bottom
Fixture outer rim is connected with deep sea vertical pipe module, both in the same plane, bottom jig bottom plate and bottom jig outer rim are affixed,
And it is affixed with the second backing plate, the 3rd universal joint fixed plate is connected with the second backing plate and the second universal joint tumbler, and the 20000th
Affixed, the 4th universal joint fixed plate and the two or three to section tumbler and the 3rd universal joint fixed plate and the 4th universal joint fixed plate
Component instrument fixed plate side is connected, the opposite side of the two or three component instrument fixed plate and the connection of the two or three component instrument, the two or three component
The end of instrument is connected with bottom fixed board, and bottom fixed board is welded on the stuck-module of bottom.
4. elongated standpipe dynamic response device is measured under shear flow according to claim 1, it is characterised in that described consolidates
Cover half block includes：Radome fairing, vertical fixing plate and vertical fixed block, described vertical fixing plate are arranged on top slide module
On first sliding block, vertical fixed block is slidably fitted with thereon, and both sides are separately installed with radome fairing, described vertical fixed block and top
Portion's boundary module Joint.
5. elongated standpipe dynamic response device is measured under shear flow according to claim 1, it is characterised in that described top
Portion's sliding block includes：First Power Component, first flange device, the first sliding block, the first guide chain, the first sliding rail, first
Support frame, wherein the first Power Component is connected by first flange device with the first sliding rail, its rotary shaft passes through first
Guide chain is connected on the first sliding block, and the first sliding block is slidably supported on the first sliding rail, and is connected with stuck-module.
6. elongated standpipe dynamic response device is measured under shear flow according to claim 1, it is characterised in that described bottom
Portion's stuck-module includes：Small false bottom panel, panel mends plate, panel contiguous block, the second Power Component, second flange device, second
Contiguous block, the second guide chain, bottom trapped orbit, the second support frame, the bottom of its medium and small false bottom panel is connected to bottom boundary mould
On block, panel contiguous block is welded on the underface of small false bottom panel, and is connected with two blocks of panels benefit plates, and panel is mended plate weld and existed
On second contiguous block, the second Power Component is connected by second flange device with bottom trapped orbit, and its rotary shaft passes through
Two guide chains are connected on the second contiguous block, and the second contiguous block is slidably supported on the trapped orbit of bottom.
7. elongated standpipe dynamic response device is measured under shear flow according to claim 1, it is characterised in that described survey
Amount analysis and Control module includes：Data collection processor, motion controller and display, wherein：Data collection processor it is defeated
Enter end with the top boundary module, bottom boundary module and deep sea vertical pipe module to be connected, its output end and display phase
Connection；Motion controller includes motion control output window and image display port, motion control output window and the top
Sliding block, bottom stuck-module are connected, and image display port is connected with display.
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105547623B (en) * | 2015-12-10 | 2018-05-04 | 上海交通大学 | Tension leg vortex-induced vibration test device under double direction shear stream and two-way ladder shear flow |
| CN114112305B (en) * | 2021-12-06 | 2024-02-06 | 西南石油大学 | Device and method for testing fluid-solid coupling effect of flexible riser by internal and external flow clamping |
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