CN106353067B - Simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device and application method - Google Patents
Simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device and application method Download PDFInfo
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- CN106353067B CN106353067B CN201610710598.2A CN201610710598A CN106353067B CN 106353067 B CN106353067 B CN 106353067B CN 201610710598 A CN201610710598 A CN 201610710598A CN 106353067 B CN106353067 B CN 106353067B
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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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The present invention relates to a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device and application methods, it includes No.1 water tank, centrifugal pump, jerk pump, experiment tubing string, No. two water tanks, miniature vibrator, dynamic strain piece, pressure pulsation sensor, tensioning apparatus, power plant, dynamic strain indicator, dynamic pressure acquisition instrument and host computer.No.1 water tank bottom is connected to one end of centrifugal pump and jerk pump respectively by pipeline, the other end of centrifugal pump and jerk pump is connected to through the first hose and flexural pivot with experiment tubing string, experiment tubing string bottom end is connect through connecting rod with miniature vibrator, it is provided with dynamic strain piece and pressure pulsation sensor on experiment tubing string, the top of experiment tubing string is connected to second hose one end and tensioning apparatus respectively across raft, and the second hose other end is connected to No.1 water tank.The side on No. two water tank tops is provided with power plant, and dynamic strain piece and pressure pulsation sensor are respectively through dynamic strain indicator and dynamic pressure acquisition instrument and upper mechatronics.
Description
Technical field
The present invention relates to a kind of experimental provision and application methods, especially with regard to a kind of simulation used in marine field
Marine environment lower tubular column fluid structurecoupling dynamic experiment device and application method.
Background technology
Currently, to the experimental provision of ocean tubing string fluid structurecoupling dynamic test also in the preliminary research stage, there has been no compared with
For the tube fluid and tubing string fluid structurecoupling dynamic characteristics under universal equipment simulating marine environment.Existing tubing string fluid structurecoupling
It is upright straight tube that experimental provision, which uses the driving force that centrifugal pump and jerk pump are flowed as tube fluid, experiment design of string pipe,
Both ends are connected with hose, and valve end is located at hose segment.This kind of tubing string fluid structurecoupling experimental provision does not consider tubing string in ocean wave
The curvature effect under force effect is flowed, while also not accounting for the connection type for experiment tubing string both ends, it can not be to marine environment
Lower fluid structurecoupling dynamic characteristics is tested.Therefore it provides a kind of stable structure, simulation is accurate, the convenient device of test data
It is simulation deep water tubing string fluid structurecoupling dynamic test urgent problem to be solved.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiments
Device and application method, it is accurate, at low cost that stable structure, test data facilitate.
To achieve the above object, the present invention takes following technical scheme：A kind of simulating ocean environment lower tubular column fluid structurecoupling
Dynamic experiment device, it is characterised in that it includes No.1 water tank, centrifugal pump, jerk pump, the first hose, flexural pivot, experiment tubing string, two
Number water tank, miniature vibrator, dynamic strain piece, pressure pulsation sensor, raft, the second hose, tensioning apparatus, power dress
It sets, dynamic strain indicator, dynamic pressure acquisition instrument and host computer；The No.1 water tank bottom by pipeline respectively with the centrifugal pump
It is connected to one end of the jerk pump, the other end of the centrifugal pump and the jerk pump connects with first hose one end
Logical, the first hose other end is connected to through the flexural pivot with the experiment tubing string, and the experiment tubing string bottom end is passed through across described
The connecting rod of No. two water tank side walls is connect with the miniature vibrator, be provided on the experiment tubing string dynamic strain piece and
The pressure pulsation sensor, it is described experiment tubing string top pass through the raft respectively with second hose one end and
The tensioning apparatus connection, the other end of second hose are connected to the No.1 water tank；The one of No. two water tank tops
Side is provided with the power plant, and the dynamic strain piece is electrically connected with the dynamic strain indicator, the pressure pulsation sensor
Be electrically connected with the dynamic pressure acquisition instrument, the dynamic strain indicator and the dynamic pressure acquisition instrument with the upper electromechanics
Connection.
Preferably, the power plant is made of flabellum, motor and power controller, the flabellum and the motor
Connection, the motor are electrically connected with the power controller.
Preferably, the bottom end of the experiment tubing string is provided with first pressure fluctuation sensor, and the experiment tubing string is away from bottom end
Second pressure fluctuation sensor is provided at one third height, the top of the experiment tubing string is provided with third pressure fluctuation biography
Sensor；Three pressure pulsation sensors both pass through the experiment tubing string side wall, and described pressure pulsation sensor one end passes through
Signal receives line and is electrically connected with the dynamic pressure acquisition instrument, and the pressure pulsation sensor other end is arranged in the experiment tube
In column, the outside of the pressure sensor is wrapped up with adhesive waterproof tape.
Preferably, there are five the dynamic strain piece, five dynamic strain pieces are uniform for setting on the experiment tubing string
It is arranged on the experiment tubing string；Five dynamic strain pieces are affixed on the outside of the experiment tubing string, and five described dynamic
It is also pasted with adhesive waterproof tape on the outside of state foil gauge.
Preferably, the flexural pivot is by flexural pivot occluder, bottom flexural pivot, third hose, tubing string supporting plate and pipe jointer structure
At；The flexural pivot occluder is fixed at No. two water tank bottoms, and the bottom flexural pivot is embedded in the flexural pivot occluder,
The third hose runs through the flexural pivot occluder, the bottom flexural pivot and the tubing string supporting plate, and third hose upper end is logical
It crosses rubber pad to be connected to described experiment tubing string one end, third hose lower end is soft by the pipe jointer and described first
Pipe one end is connected to.
Preferably, the tensioning apparatus is made of holder, spring, auger stem and rotating disk；The holder is set as U-shaped
Structure, the both ends of the holder are connect with the raft, and the experiment tubing string passes through the raft and the spring
One end is connected, the other end of the spring is connect with described auger stem one end, and the auger stem other end passes through the branch
Frame is fixedly connected with the rotating disk, and scale is provided in the rotating disk.
Preferably, throttle valve and flowmeter are disposed on first hose.
Preferably, the raft uses I-shaped structure；The experiment tubing string is set as curve shape.
Preferably, it is provided with electric-hydraulic proportion on second hose between the experiment tubing string and the No.1 water tank
Valve.
A kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device application method, it is characterised in that it include with
Lower step：1) experiment tubing string thickness length is chosen according to requirement of experiment, five dynamic strain pieces and three dynamic pressure arteries and veins is installed
Dynamic instrument connects flexural pivot and upper end drift platform；2) water of 2/3rds depth of injection experiments tubing string length is simultaneously in No. two water tanks
Whether check valve closes；3) valve is opened, rotation auger stem makes tensioning apparatus generate tensile force, opens power plant and adjusts
Save corresponding wind speed；4) throttle valve, jerk pump are adjusted, tube fluid is made to be flowed with the pulses of certain flow rate pressure, in opening
Position machine, sighting tube fluid pressure and pipe external strain variation tendency；5) miniature vibrator is adjusted, it is made to have certain exciting masterpiece
With observing tubing string fluid pressure, flow velocity and stress variation on host computer by information collection.
The invention adopts the above technical scheme, which has the following advantages：1, the present invention use to test tubing string two
The connection type at end is, it can be achieved that test complicated pipe conveying fluid column dynamic characteristics.2, experiment tubing string of the invention is using bending
Structure, it is contemplated that curvature effect of the experiment tubing string under the wave current force effect of ocean.3, the present invention uses simulating ocean environment down tube
Column fluid structurecoupling dynamic experiment device, stable structure is easy to dismount, cheap.4, the present invention is using under simulating ocean environment
Tubing string fluid structurecoupling dynamic experiment device, can meet dynamic experiment of the tubing string in ocean under various operating modes.
Description of the drawings
Fig. 1 is the entire experimental provision overlooking structure diagram of the present invention；
Fig. 2 is the right side cross-sectional view of Fig. 1；
Fig. 3 is the front side sectional view of Fig. 1；
Fig. 4 is spherical hinge structure schematic diagram in the present invention；
Fig. 5 is pressure pulsation sensor mounting structure schematic diagram in the present invention；
Fig. 6 is tensioning device structure schematic diagram in the present invention.
Specific implementation mode
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in FIG. 1 to 3, the present invention provides a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device,
It includes No.1 water tank 1, centrifugal pump 2, jerk pump 3, the first hose 4, throttle valve 5, flowmeter 6, flexural pivot 7, experiment tubing string 8, two
Number water tank 9, connecting rod 10, miniature vibrator 11, dynamic strain piece 12, pressure pulsation sensor, raft 13, the second hose
14, tensioning apparatus 15, power plant, dynamic strain indicator 16, dynamic pressure acquisition instrument 17 and host computer 18.1 bottom of No.1 water tank
Be connected to respectively with one end of centrifugal pump 2 and jerk pump 3 by pipeline, the other end of centrifugal pump 2 and jerk pump 3 with the first hose
4 one end are connected to, and are convergeed to the fluid of two kinds of different liquid forms together by the first hose 4, are set successively on the first hose 4
It is equipped with throttle valve 5 and flowmeter 6, fluid flow and pressure are controlled by throttle valve 5, measured in the first hose 4 by flowmeter 6
The flow velocity of fluid, 4 other end of the first hose are connected to through flexural pivot 7 with experiment tubing string 8, are fixed by flexural pivot 7 by 8 bottom end of tubing string is tested
In the bottom of No. two water tanks 9, experiment tubing string 8 is set as curve shape, and 8 bottom end of experiment tubing string is passed through across No. two 9 side walls of water tank
Connecting rod 10 is connect with miniature vibrator 11, is tested and is provided with dynamic strain piece 12 and pressure pulsation sensor on tubing string 8, is used for
It measures under simulating ocean environment, dynamic response of the fluid to exciting, Pulsating Flow.The top for testing tubing string 8 passes through raft
13 are connected to 14 one end of the second hose and tensioning apparatus 15 respectively, and the other end of the second hose 14 is connected to No.1 water tank 1, realize
The fluid circulation of entire experimental provision.The side on No. two 9 tops of water tank is provided with power plant, is floated to platform for simulating wind load
It moves and marine environment, dynamic strain piece 12 is electrically connected with dynamic strain indicator 16, pressure pulsation sensor and dynamic pressure acquisition instrument
17 electrical connections, dynamic strain indicator 16 and dynamic pressure acquisition instrument 17 are electrically connected with host computer 18, the data for will be collected into
It is transmitted to host computer 18, fluid pressure flow velocity time-histories and experiment 8 strain time history of tubing string are analyzed in host computer 18, are shown
Go out the variation of the dynamic response within 1s.
In above-described embodiment, power plant is made of flabellum 19, motor 20 and power controller.Flabellum 19 and motor
20 connections, motor 20 are electrically connected with power controller, the rotating speed for controlling motor 20, and then control the wind of power plant
Speed.
In the various embodiments described above, the bottom end of experiment tubing string 8 is provided with first pressure fluctuation sensor 21, experiment tubing string 8 away from
Second pressure fluctuation sensor 22 is provided at the one third height of bottom end, the top of experiment tubing string 8 is provided with third pressure arteries and veins
Dynamic sensor 23.As shown in figure 4, three pressure pulsation sensors both pass through experiment 8 side wall of tubing string, pressure pulsation sensor one end
Line 24 is received by signal to be electrically connected with dynamic pressure acquisition instrument 17, the setting of the pressure pulsation sensor other end is in experiment tubing string 8
Interior, the outside of pressure sensor is wrapped up with adhesive waterproof tape 25.
In the various embodiments described above, testing setting on tubing string 8, there are five dynamic strain piece 12, five dynamic strain pieces 12 are uniform
Setting is on experiment tubing string 8.Five dynamic strain pieces 12 are affixed on 8 outside of experiment tubing string, and outside five dynamic strain pieces 12
Side is also pasted with adhesive waterproof tape 25.
In the various embodiments described above, as shown in figure 5, flexural pivot 7 is by flexural pivot occluder 26, bottom flexural pivot 27, third hose 28, pipe
Column bracket plate 29 and pipe jointer 30 are constituted.Flexural pivot occluder 26 is fixed at No. two 9 bottoms of water tank, and bottom flexural pivot 27 is embedded in
In flexural pivot occluder 26, third hose 28 is on flexural pivot occluder 26, bottom flexural pivot 27 and tubing string supporting plate 29, third hose 28
End is connected to by rubber pad 31 with 8 one end of experiment tubing string, and 28 lower end of third hose passes through pipe jointer 30 and the first hose 4 one
End connection.
In the various embodiments described above, as shown in fig. 6, tensioning apparatus 15 is by holder 32, spring 33, auger stem 34 and rotating disk
35 are constituted.Holder 32 is set as U-shaped structure, and the both ends of holder 32 are connect with raft 13, and experiment tubing string 8 passes through raft
13 connect one end with spring 33, and the other end of spring 33 is connect with 34 one end of auger stem, and 34 other end of auger stem passes through branch
Frame 32 is fixedly connected with rotating disk 35, and scale is provided in rotating disk 35.Rotate rotating disk 35, and then drive auger stem 34 to
Upper movement makes experiment tubing string 8 by tensile force to make spring generate upward lifting force.
In the various embodiments described above, miniature vibrator 11 is arranged at the position between No.1 water tank 1 and No. two water tanks 9.
In the various embodiments described above, raft 13 uses I-shaped structure.
In the various embodiments described above, the bottom of No. two water tanks 9 is provided with steelframe support device 36.
In the various embodiments described above, tests and be provided with electro-hydraulic proportional valve on the second hose 14 between tubing string 8 and No.1 water tank 1
37。
Based on above-mentioned apparatus, the present invention also provides a kind of simulating ocean environment lower tubular columns to couple making for dynamic experiment device admittedly
With method, it is as follows：
1) experiment 8 thickness length of tubing string is chosen according to requirement of experiment, five dynamic strain pieces 12 is installed and three dynamics are pressed
Power oscillometer connects flexural pivot 7 and upper end drift platform 29；
2) whether the water of 8 length of injection experiments tubing string, 2/3rds depth simultaneously close by check valve in No. two water tanks 9；
3) valve is opened, rotation auger stem 34 makes tensioning apparatus 15 generate tensile force, opens power plant and adjusts phase
Answer wind speed；
4) throttle valve 5, jerk pump 3 are adjusted, tube fluid is made to be flowed with the pulses of certain flow rate pressure, is opened upper
Machine 18, sighting tube fluid pressure and pipe external strain variation tendency；
5) miniature vibrator 11 is adjusted, so that it is had certain exciting force effect, is observed on host computer 18 by information collection
Tubing string fluid pressure, flow velocity and stress variation.
The various embodiments described above are merely to illustrate the present invention, and structure and size, installation position and the shape of each component are all can be with
It is varied from, based on the technical solution of the present invention, all improvement that individual part is carried out according to the principle of the invention and waits
With transformation, should not exclude except protection scope of the present invention.
Claims (9)
1. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device, it is characterised in that：It include No.1 water tank, from
Heart pump, jerk pump, the first hose, flexural pivot, experiment tubing string, No. two water tanks, miniature vibrator, dynamic strain piece, pressure fluctuation pass
Sensor, raft, the second hose, tensioning apparatus, power plant, dynamic strain indicator, dynamic pressure acquisition instrument and host computer；Institute
It states No.1 water tank bottom to be connected to one end of the centrifugal pump and the jerk pump respectively by pipeline, the centrifugal pump and described
The other end of jerk pump is connected to first hose one end, and the first hose other end is through the flexural pivot and the experiment
Tubing string is connected to, and the experiment tubing string bottom end is connect through the connecting rod across No. two water tank side walls with the miniature vibrator,
The dynamic strain piece and the pressure pulsation sensor are provided on the experiment tubing string, the top of the experiment tubing string passes through
The raft is connected to second hose one end and the tensioning apparatus respectively, the other end of second hose and institute
State the connection of No.1 water tank；The side on No. two water tank tops is provided with the power plant, the dynamic strain piece with it is described
Dynamic strain indicator is electrically connected, and the pressure pulsation sensor is electrically connected with the dynamic pressure acquisition instrument, the dynamic strain indicator
With the dynamic pressure acquisition instrument with the upper mechatronics；It is disposed with throttle valve and flow on first hose
Meter.
2. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as described in claim 1, it is characterised in that：
The power plant is made of flabellum, motor and power controller, and the flabellum is connect with the motor, the motor
It is electrically connected with the power controller.
3. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as described in claim 1, it is characterised in that：
The bottom end of the experiment tubing string is provided with the first pressure pulsation sensor, and the experiment tubing string is away from bottom end one third height
Place is provided with the second pressure pulsation sensor, and the top of the experiment tubing string is provided with pressure fluctuation described in third and senses
Device；Three pressure pulsation sensors both pass through the experiment tubing string side wall, and described pressure pulsation sensor one end passes through letter
Number receive line is electrically connected with the dynamic pressure acquisition instrument, and pressure pulsation sensor other end setting is in the experiment tubing string
Interior, the outside of the pressure sensor is wrapped up with adhesive waterproof tape.
4. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as claimed in claim 3, it is characterised in that：
There are five the dynamic strain pieces, five dynamic strain pieces to be uniformly arranged on the experiment tube for setting on the experiment tubing string
On column；Five dynamic strain pieces are affixed on the outside of the experiment tubing string, and are also glued on the outside of five dynamic strain pieces
Post adhesive waterproof tape.
5. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as described in claim 1, it is characterised in that：
The flexural pivot is made of flexural pivot occluder, bottom flexural pivot, third hose, tubing string supporting plate and pipe jointer；The flexural pivot occlusion
Device is fixed at No. two water tank bottoms, and the bottom flexural pivot is embedded in the flexural pivot occluder, and the third hose passes through
Wear the flexural pivot occluder, the bottom flexural pivot and the tubing string supporting plate, third hose upper end by rubber pad with it is described
The connection of tubing string one end is tested, third hose lower end is connected to by the pipe jointer with first hose one end.
6. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as described in claim 1, it is characterised in that：
The tensioning apparatus is made of holder, spring, auger stem and rotating disk；The holder is set as U-shaped structure, the holder
Both ends are connect with the raft, and the experiment tubing string connect one end, the bullet with the spring across the raft
The other end of spring is connect with described auger stem one end, and the auger stem other end passes through the holder solid with the rotating disk
It is fixed to connect, it is provided with scale in the rotating disk.
7. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as described in claim 1 or 6, feature exist
In：The raft uses I-shaped structure；The experiment tubing string is set as curve shape.
8. a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as described in claim 1, it is characterised in that：
It is provided with electro-hydraulic proportional valve on second hose between the experiment tubing string and the No.1 water tank.
9. a kind of application method of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device as claimed in claim 4,
It is characterized in that：It includes the following steps：
1) experiment tubing string thickness length is chosen according to requirement of experiment, five dynamic strain pieces and three dynamic pressure ripples is installed
Instrument connects flexural pivot and upper end drift platform；
2) whether the water of 2/3rds depth of injection experiments tubing string length simultaneously close by check valve in No. two water tanks；
3) valve is opened, rotation auger stem makes tensioning apparatus generate tensile force, opens power plant and adjusts corresponding wind speed；
4) throttle valve, jerk pump are adjusted, tube fluid is made to be flowed with the pulses of certain flow rate pressure, opens host computer, is seen
Test tube fluid pressure and pipe external strain variation tendency；
5) miniature vibrator is adjusted, so that it is had certain exciting force effect, is observed in tubing string and being flowed on host computer by information collection
Body pressure, flow velocity and stress variation.
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| Application Number | Priority Date | Filing Date | Title |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610710598.2A CN106353067B (en) | 2016-08-23 | 2016-08-23 | Simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device and application method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152271B (en) * | 2017-06-26 | 2020-05-01 | 西南石油大学 | Test method and device for simulating vibration and dynamic stress of production drill column |
| CN111982461B (en) * | 2019-05-23 | 2022-02-08 | 中国石油大学(华东) | Ocean oil gas tubular column rigid body fluid-solid coupling semi-physical simulation test device |
| CN110231142A (en) * | 2019-06-24 | 2019-09-13 | 苏州东菱科技有限公司 | A kind of pressure simulation experimental rig |
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| CN102607802A (en) * | 2011-12-26 | 2012-07-25 | 北京航空航天大学 | High-speed rotating test device with motor driving structure for verifying fluid-solid coupling algorithms |
| CN102607803A (en) * | 2011-12-26 | 2012-07-25 | 北京航空航天大学 | High-speed rotation testing device with supercharging device for fluid driving structure |
| CN102607787A (en) * | 2012-03-23 | 2012-07-25 | 中国海洋大学 | Method for testing influences of internal flow to dynamic property of marine risers |
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