Content of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of simulating ocean environment lower tubular column fluid structurecoupling power
Experimental provision, its Stability Analysis of Structures, test data are convenient accurately, low cost.
For achieving the above object, this utility model takes technical scheme below:A kind of simulating ocean environment lower tubular column stream is solid
Coupling dynamic experiment device is it is characterised in that it includes a water tank, centrifugal pump, jerk pump, the first flexible pipe, ball pivot, experiment tube
Post, No. two water tanks, miniature vibrator, dynamic strain piece, pressure pulsation sensor, raft, the second flexible pipe, tensioner,
Power set, dynamic strain indicator, dynamic pressure acquisition instrument and host computer;A described water tank bottom pass through pipeline respectively with described
Centrifugal pump connects with one end of described jerk pump, the other end of described centrifugal pump and described jerk pump all with described first flexible pipe one
End connection, the described first flexible pipe other end is connected with described experiment tubing string through described ball pivot, and described experiment tubing string bottom is through passing through
The connecting rod of described No. two water tank side walls is connected with described miniature vibrator, and described experiment tubing string is provided with described dynamic strain
Piece and described pressure pulsation sensor, the top of described experiment tubing string pass through described raft respectively with described second flexible pipe one
End connects with described tensioner, and the other end of described second flexible pipe is connected with a described water tank;Described No. two water tank tops
Side be provided with described power set, described dynamic strain piece is electrically connected with described dynamic strain indicator, and described pressure fluctuation passes
Sensor is electrically connected with described dynamic pressure acquisition instrument, and described dynamic strain indicator and described dynamic pressure acquisition instrument are all upper with described
Mechatronics.
Preferably, described power set are made up of flabellum, motor and power controller, described flabellum and described motor
Connect, described motor is electrically connected with described power controller.
Preferably, the bottom of described experiment tubing string is provided with first pressure fluctuation sensor, and described experiment tubing string is away from bottom
It is provided with second pressure fluctuation sensor, the top of described experiment tubing string is provided with the 3rd pressure fluctuation and passes at 1/3rd height
Sensor;Three described pressure pulsation sensor both pass through described experiment tubing string side wall, and described pressure pulsation sensor one end is passed through
Signal is received line and is electrically connected with described dynamic pressure acquisition instrument, and the described pressure pulsation sensor other end is arranged on described experiment tube
In post, the outside adhesive waterproof tape of described pressure transducer wraps up.
Preferably, described experiment tubing string is provided with five described dynamic strain pieces, five described dynamic strain pieces are uniform
It is arranged on described experiment tubing string;Five described dynamic strain pieces are all affixed on outside described experiment tubing string, and five described dynamic
Also it is pasted with adhesive waterproof tape outside state foil gauge.
Preferably, described ball pivot is by ball pivot occludator, bottom ball pivot, the 3rd flexible pipe, tubing string supporting plate and pipe jointer structure
Become;Described ball pivot occludator is fixedly installed on described No. two water tank bottoms, and described bottom ball pivot embeds in described ball pivot occludator,
Described 3rd flexible pipe runs through described ball pivot occludator, described bottom ball pivot and described tubing string supporting plate, and described 3rd flexible pipe upper end leads to
Cross rubber blanket to connect with described experiment tubing string one end, it is soft with described first that described pipe jointer is passed through in described 3rd flexible pipe lower end
Pipe one end connects.
Preferably, described tensioner is made up of support, spring, auger stem and rotating disk;Described support is set to U-shaped
Structure, the two ends of described support are connected with described raft, and described experiment tubing string passes through described raft and described spring
Connect one end, the other end of described spring is connected with described auger stem one end, the described auger stem other end passes through described
Frame is fixedly connected with described rotating disk, and described rotating disk is provided with scale.
Preferably, described first flexible pipe is disposed with choke valve and effusion meter.
Preferably, described raft adopts I-shaped structure;Described experiment tubing string is set to curve shape.
Preferably, described second flexible pipe between described experiment tubing string and a described water tank is provided with electric-hydraulic proportion
Valve.
Due to taking above technical scheme, it has advantages below to this utility model:1st, this utility model adopt to reality
Test the connected mode at tubing string two ends, can achieve and complicated pipe conveying fluid post dynamic trait is tested.2nd, experiment of the present utility model
Tubing string adopts warp architecture it is contemplated that testing curvature effect under the effect of ocean wave current power for the tubing string.3rd, this utility model adopts
Simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device, Stability Analysis of Structures is it is easy to dismounting, cheap.4th, this practicality is new
Type adopts simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment device, can meet dynamic under tubing string various operating modes in ocean
Power is tested.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is described in detail.
As shown in FIG. 1 to 3, this utility model provides a kind of simulating ocean environment lower tubular column fluid structurecoupling dynamic experiment dress
Put, it include a water tank 1, centrifugal pump 2, jerk pump 3, the first flexible pipe 4, choke valve 5, effusion meter 6, ball pivot 7, experiment tubing string 8,
No. two water tanks 9, connecting rod 10, miniature vibrator 11, dynamic strain piece 12, pressure pulsation sensor, rafts 13, second are soft
Pipe 14, tensioner 15, power set, dynamic strain indicator 16, dynamic pressure acquisition instrument 17 and host computer 18.Number water tank 1 bottom
Portion is connected with one end of centrifugal pump 2 and jerk pump 3 respectively by pipeline, and the other end of centrifugal pump 2 and jerk pump 3 is all soft with first
Pipe 4 one end connects, and converges to together by the first flexible pipe 4 by the fluid of two kinds of different liquid forms, on the first flexible pipe 4 successively
It is provided with choke valve 5 and effusion meter 6, fluid flow and pressure are controlled by choke valve 5, the first flexible pipe 4 is measured by effusion meter 6
The flow velocity of interior fluid, the first flexible pipe 4 other end is connected with experiment tubing string 8 through ball pivot 7, will test tubing string 8 bottom by ball pivot 7 solid
It is scheduled on the bottom of No. two water tanks 9, experiment tubing string 8 is set to curve shape, and experiment tubing string 8 bottom is through through No. two water tank 9 side walls
Connecting rod 10 be connected with miniature vibrator 11, experiment tubing string 8 on be provided with dynamic strain piece 12 and pressure pulsation sensor, use
In measurement under simulating ocean environment, the dynamic response to exciting, pulsating flow for the fluid.The top of experiment tubing string 8 passes through floating flat
Platform 13 is connected with the second flexible pipe 14 one end and tensioner 15 respectively, and the other end of the second flexible pipe 14 is connected with a water tank 1, real
The now fluid circulation of whole experimental provision.The side on No. two water tank 9 tops is provided with power set, for simulating wind load to platform
Drift and marine environment, dynamic strain piece 12 electrically connected with dynamic strain indicator 16, pressure pulsation sensor and dynamic pressure acquisition
Instrument 17 electrically connects, and dynamic strain indicator 16 and dynamic pressure acquisition instrument 17 are all electrically connected with host computer 18, for by the number collected
According to transmitting to host computer 18, in host computer 18, fluid pressure flow velocity time-histories and experiment tubing string 8 strain time history are analyzed, and show
It is shown in the change of dynamic response within 1s.
In above-described embodiment, power set are made up of flabellum 19, motor 20 and power controller.Flabellum 19 and motor
20 connections, motor 20 is electrically connected with power controller, for controlling the rotating speed of motor 20, and then controls the wind of power set
Speed.
In the various embodiments described above, the bottom of experiment tubing string 8 is provided with first pressure fluctuation sensor 21, experiment tubing string 8 away from
It is provided with second pressure fluctuation sensor 22, the top of experiment tubing string 8 is provided with the 3rd pressure arteries and veins at the height of bottom 1/3rd
Dynamic sensor 23.As shown in figure 4, three pressure pulsation sensor both pass through experiment tubing string 8 side wall, pressure pulsation sensor one end
Receive line 24 by signal to electrically connect with dynamic pressure acquisition instrument 17, the pressure pulsation sensor other end is arranged on experiment tubing string 8
Interior, the outside adhesive waterproof tape 25 of pressure transducer wraps up.
In the various embodiments described above, experiment tubing string 8 is provided with five dynamic strain pieces 12, five dynamic strain pieces 12 are uniform
It is arranged on experiment tubing string 8.Five dynamic strain pieces 12 are all affixed on outside experiment tubing string 8, 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, ball pivot 7 is by ball pivot occludator 26, bottom ball pivot 27, the 3rd flexible pipe 28, pipe
Column bracket plate 29 and pipe jointer 30 are constituted.Ball pivot occludator 26 is fixedly installed on No. two water tank 9 bottoms, and bottom ball pivot 27 embeds
In ball pivot occludator 26, the 3rd flexible pipe 28 runs through ball pivot occludator 26, bottom ball pivot 27 and tubing string supporting plate 29, on the 3rd flexible pipe 28
End is connected with experiment tubing string 8 one end by rubber blanket 31, and pipe jointer 30 and the first flexible pipe 4 one are passed through in the 3rd flexible pipe 28 lower end
End connection.
In the various embodiments described above, as shown in fig. 6, tensioner 15 is by support 32, spring 33, auger stem 34 and rotating disk
35 compositions.Support 32 is set to U-shape structure, and the two ends of support 32 are connected with raft 13, and experiment tubing string 8 passes through raft
13 are connected one end with spring 33, and the other end of spring 33 is connected with auger stem 34 one end, and auger stem 34 other end passes through and props up
Frame 32 is fixedly connected with rotating disk 35, and rotating disk 35 is provided with scale.Rotate rotating disk 35, and then drive auger stem 34 to
Upper motion, so that spring produces lifting force upwards, makes experiment tubing string 8 be subject to tensile force.
In the various embodiments described above, miniature vibrator 11 is arranged at the position between a water tank 1 and No. two water tanks 9.
In the various embodiments described above, raft 13 adopts I-shaped structure.
In the various embodiments described above, the bottom of No. two water tanks 9 is provided with steelframe support meanss 36.
In the various embodiments described above, the second flexible pipe 14 between experiment tubing string 8 and a water tank 1 is provided with electro-hydraulic proportional valve
37.
Based on said apparatus, this utility model also provides a kind of simulating ocean environment lower tubular column admittedly to couple dynamic experiment device
Using method, it comprises the following steps that:
1) experiment tubing string 8 thickness length is chosen according to requirement of experiment, five dynamic strain pieces 12 and three dynamic pressures are installed
Power oscillometer, connects ball pivot 7 and upper end drift platform 29;
2) water of injection experimentses tubing string 8 length 2/3rds depth whether check valve closes in No. two water tanks 9;
3) open valve, rotating auger stem 34 makes tensioner 15 produce tensile force, opens power set and adjusts phase
Answer wind speed;
4) adjust choke valve 5, jerk pump 3, so that tube fluid is flowed with the pulses of certain flow rate pressure, open upper
Machine 18, sighting tube fluid pressure and pipe external strain variation tendency;
5) adjust miniature vibrator 11 so as to there be certain exciting force effect, observed on host computer 18 by information gathering
Tubing string fluid pressure, flow velocity and STRESS VARIATION.
The various embodiments described above are merely to illustrate this utility model, and the structure of each part, size, set location and shape are all
Can be varied from, on the basis of technical solutions of the utility model, all according to this utility model principle, individual part be entered
The improvement of row and equivalents, all should not exclude outside protection domain of the present utility model.