CN105890857A - Marine riser vortex-induced vibration control lever restraint system - Google Patents
Marine riser vortex-induced vibration control lever restraint system Download PDFInfo
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- CN105890857A CN105890857A CN201610283437.XA CN201610283437A CN105890857A CN 105890857 A CN105890857 A CN 105890857A CN 201610283437 A CN201610283437 A CN 201610283437A CN 105890857 A CN105890857 A CN 105890857A
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- marine riser
- support means
- bar
- vortex
- induced vibration
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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
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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Abstract
The invention discloses a marine riser vortex-induced vibration control lever restraint system, and the system comprises a marine riser model, a first end supporting device, and a second end supporting device, wherein the first and second end supporting devices are used for supporting two ends of the marine riser model. The tops of the first and second end supporting devices are respectively connected with two ends of a lateral testing support. The outer side of the second end supporting device is provided with a tension sensor connected with an end part of the lateral testing support, and a tensioner which is connected with the tension sensor. The tension sensor is connected with a steel wire rope winding around a pulley. The marine riser model is provided with the control lever restraint system which consists of a control lever and a supporting device. The control lever is fixed in a groove of the external diameter of the control lever supporting device. The system is advantageous in that the system solves a problem of force application of the control lever in a vortex-induced vibration restraint test with the control lever under the condition of vertical uniform incoming flow, reduces the interference from a convection field to maximum degree, and is more suitable for engineering application.
Description
Technical field
The present invention relates to the experimental provision of a kind of field of ocean engineering, it is more particularly related to one
Plant vortex-induced vibration of marine riser and control bar suppression system.
Background technology
The deficientest with landing field petroleum resources, the exploitation of Marine oil and gas resource has obtained fast development.Ocean
Standpipe is to connect seabed oil-out and the important component of marine oil storage platform.When seawater flows through marine riser, pipeline
Trailing edge, by producing vortex shedding alternately, is lured pipe vibration into, and structural vibration can be reacted on flow field, this
Plant typical fluid-wall interaction phenomenon and be referred to as " vortex-induced vibration ".When vortex shedding frequency is close with the pipeline natural frequency of vibration
Time, the vibration of pipeline will force vortex shedding frequency to be fixed near the pipeline natural frequency of vibration, thus " locking " will occur
Phenomenon.The vortex-induced vibration of pipeline and " locking " phenomenon are the principal elements causing pipeline gas engineering and fatigue rupture.
In order to effectively suppress riser vortex excited vibration, scholars has carried out numerous studies and has proposed multiple suppression and arrange
Executing, common vortex-induced vibration braking measure has actively control and passively controls two classes:
Active suppression, by monitoring flow field and structure stress situation, uses computer autocontrol technique, introduces suitable
When disturbance change flow field.But active suppression operation complexity, relatively costly, technical difficulty is big, actual in engineering
In application be very limited.Passive suppression directly changes body structure surface shape or installs attachment device, changes
The flow field of structure periphery, this mode is widely used in Practical Project.
Passive control measure are divided three classes: (1) surface highlights structure, such as spiral floor, projection etc.；(2) tail
Flow control device, such as radome fairing, demarcation strip etc.；(3) covered structure, such as axial lath, controls bar etc..This
Three class restraining devices are respectively arranged with quality: spiral strake can effectively suppress vortex-induced vibration, but dragging of increasing that structure is subject to
Drag force；Radome fairing has the problems such as dynamic instability, and the inhibitory action of vortex-induced vibration is confined to by demarcation strip
The single flow direction, and control bar suppression system and can not only reduce structure Fluctuating Lift and drag, to the adaptation flowed
Property also strong, and can effectively suppress vortex-induced vibration.
Model experiment is the most effective means studying vortex-induced vibration of marine riser inhibition at present.Tried by model
Test, than more comprehensively observation with the riser vortex excited vibration phenomenon of control bar suppression system, and control can be studied
The inhibition of lever system, for effect, the theoretical and precision of numerical model, accumulates experience for engineering is actual.
Paper " On the formation in phase nineteen ninety the 1st " Journal of Fluid Mechanics " magazine
And suppression of vortex'shedding'at low reynolds numbers " (under low reynolds number, whirlpool takes off
The formation fallen and suppression) disclose with diameter less control the flow visual experiment that bar is carried out.
Paper " Optimum in 2nd phase in 1994 " Journal of fluids engineering " magazine
Suppression of fluid forces acting on a circular cylinder " (the fluid force on cylinder
Optimal inhibition) disclose control pole pair cylinder fluid force impact research.
Paper " three attached control pole pair marine riser vortexes in 3rd phase " ocean engineering " magazine in 2009
Excited vibration inhibitory action experimental study " have studied the impact with three attached control pole pair main cylinder vortex-induced vibrations.
Paper " the Experimental of the 30th phase in 2012 " Journal of Fluids and Structures " magazine
investigation on the suppression of vortex-induced vibration of long flexible riser
By multiple control rod " have studied the inhibition of vortex-induced vibration controlling pole pair marine riser.
Through the investigation of multiple prior art literature is found, both at home and abroad for flexible vertical under the conditions of many control bars
The research of pipe vortex-induced vibration Inhibition test is the most very limited, and main cause is a lack of the experimental provision of necessity and lacks real
The arrangement method of the most control bars.
Summary of the invention
The purpose of the present invention is aiming at the deficiencies in the prior art, it is provided that a kind of vortex-induced vibration of marine riser controls bar
Suppression system, controls the inhibition of lever system, and provides reference and reference for engineering is actual with research.
The technical scheme is that
A kind of vortex-induced vibration of marine riser controls bar suppression system, props up including marine riser model, first end
Support arrangement, the second end support means, transverse test support, trailer, control bar suppression system and should
Become Acquisition Instrument and computer；Described marine riser model is by the first, second end support means at its two ends
Supported, the top of described first, second end support means respectively with described transverse test support
Two ends are connected, and the outside of described the second end support means is provided with the described transverse test of connection and supports frame end
The pulling force sensor in portion and connect the pulling force stretcher of described pulling force sensor, described pulling force stretcher is even
Connect tension spring and connected the steel wire rope of its lower end winding pulley, described steel wire by described tension spring
The axis of rope and described marine riser model is in the same plane；Be provided with on described marine riser model with
Controlling bar and the control bar suppression system of support means composition, described support means is along described marine riser mould
The length direction of type is equidistant to be arranged on described marine riser model, and described control bar is fixed on described
In the groove of support means external diameter.
In aforementioned setting:
Described marine riser model is naked pipe structure, its constitute include external diameter be 8mm, wall thickness be 1mm's
Thin-wall copper pipe, if the outer surface of described thin-wall copper pipe is disposed with the dried layer thermoplastic of close contact from inside to outside
Pipe and one layer of silicone tube, be provided with between outer surface and the described thermoplastic tube of described thin-wall copper pipe multi-disc for
Gathering the resistance strain gage of strain, the resistance strain gage described in multi-disc is respectively by binding post and a plurality of wire
Being connected, every wire and one end of described thin-wall copper pipe or respectively two ends with described thin-wall copper pipe fix；Institute
The one end stating thin-wall copper pipe connects first column joint fixing with pin, and the other end of described thin-wall copper pipe connects
Its diameter the second column joint more than the first column joint is fixed with pin.
Described transverse test support includes subject beam, and described subject beam is rectangular steel by cross section
Pipe and some cross sections are that square steel pipe is constituted, its internally installed thin-walled wood having for placing cuboid keg float
Case, its top is provided with to support the channel-section steel of trailer, and described transverse test support is secured by bolts in
The bottom of described trailer, described trailer is made up of dynamical system, brake system, control system etc..
First, second described end support means includes a stay tube of vertical direction, two described supports respectively
The upper end of pipe connects the two ends of described transverse test support subject beam respectively, the bottom of a stay tube described in two
Connecting the gripper shoe made by steel plate respectively, the inner side of described gripper shoe is connected and it by deflector fixed screw
Parallel plastic material deflector, described deflector connects the hog frame of sheet iron bar with bolt, described
The connection end of transverse test support and described first, second end support means is respectively mounted has reinforcement effect
Down tube；
The deflector bottom of described first end support means side has through hole and is provided with universal joint shaft in through hole
Joint, one end of described universal coupling is fixed in the gripper shoe of this side by universal coupling screw, and described ten thousand
The first column joint to the other end of shaft coupling with the described marine riser model being positioned at this side is connected；
The deflector bottom of described the second end support means side has Pipe installing through hole, outside the gripper shoe of this side
Side is provided with pulley, and the lower section of described pulley has steel wire rope via, in the main body of this side transverse test support
Crossbeam is provided with pulling force sensor, the other end of described pulling force sensor with the connection end of the second end support means
It is connected with pulling force stretcher and tension spring in turn；Described tension spring connects from the second described column joint
In gripper shoe described in this side, after steel wire rope via, walk around the steel wire rope of described pulley, described steel wire rope with
The axis of described marine riser model is in the same plane vertical with carrying out flow path direction.
Described controls several control bar support meanss and the described sea that bar suppression system equidistantly distributes with it
Ocean riser model is connected, and the described bar support means that controls is made up of half ring flat-plate that a pair edge is aerofoil profile, and
It is screwed on described marine riser model；On the external diameter of described control bar support means uniform some
Individual for installing the groove controlling bar.
First, second described end support means uses square iron pipe to be welded respectively.
Described wire is 7 core wires.
The described plastic production controlling bar support means employing lighter in weight, a diameter of 16mm of its inner circle, its
Number of recesses uniform on external diameter is 3 to 5.
The described bar that controls uses the rubber strip less than marine riser rigidity of model to make, and its quantity is with described
Control that the groove in bar support means is corresponding 3 to 5.
Compared with prior art, it provides the benefit that the present invention:
(1) solve under Vertical Uniform inlet flow conditions with controlling control bar in the suppression test of bar vortex-induced vibration
Applying problem, deft design is simple, it is simple to processes, install and disassembles, practical.
(2) the bar support means a pair half ring flat-plates with edge as aerofoil profile that control described in are constituted and are passed through screw admittedly
It is scheduled on marine riser model, reduces the interference of stream field to greatest extent.
(3) uniform several in bar support means that control described in are used for the fixing groove controlling bar, can pass through it
Rotation can change the relative angle between described control bar and marine riser, it is achieved different relative positions, from
And it is actual more to accord with engineering.
Accompanying drawing explanation
Fig. 1 is that Vertical Uniform inlet flow conditions of the present invention has control bar vortex vibration testing device structural representation；
Fig. 2 is that in the present invention, marine riser model is the structural representation of naked pipe；
Fig. 3 is the top view of transverse test support shown in Fig. 1；
Fig. 4 is the right view of transverse test support shown in Fig. 3；
Fig. 5 is the structural representation of gripper shoe shown in Fig. 1；
Fig. 6 is the structural representation of deflector shown in Fig. 1；
Fig. 7 is first, second end support means shown in Fig. 1 and marine riser model coupling part schematic diagram；
Fig. 8 is control bar support means front view shown in Fig. 1；
Fig. 9 is to control bar support means side view shown in Fig. 8；
Figure 10 is marine riser model and the connection diagram controlling bar suppression system in the present invention；
Figure 11 is the side view that the marine riser model shown in Figure 10 is connected with control bar suppression system；
Figure 12 is transverse test support and the top view of trailer position in the present invention；
Figure 13 is the right view of transverse test support shown in Figure 12 and trailer position；
Figure marks: 1-marine riser model；2-first end support means；2 '-the second end support means；
3-transverse test support；4-controls bar suppression system；5-the first column joint；6-the second column joint；
7-pin；8-thin-wall copper pipe；9-down tube；10-universal coupling；11-deflector；12-hog frame；
13-props up stay tube；14-gripper shoe；5-universal coupling screw；6-pulley；7-steel wire rope；18-deflector
Fixed screw；19-tension spring；20-trailer；21-controls bar；22-support means；23-pulling force stretcher；
24-steel wire rope attaching nut.
Detailed description of the invention
It is understood to make advantages and features of the invention be easier to, below in conjunction with the accompanying drawings with embodiment to it
Technical scheme is described in detail.
The vortex-induced vibration of marine riser of the present invention controls bar suppression system, including marine riser model the 1, first end
Portion's support means 2, the second end support means 2 ', transverse test support 3, trailer 20, control bar suppression
System 4 and strain acquirement instrument and computer.
With reference to Fig. 1 and combine Fig. 7, described marine riser model 1 is by the first end support means 2 at its two ends
Supported with the second end support means 2 ', described first end support means 2 and the second end support means
Two ends with described transverse test support 3 respectively, the top of 2 ' are connected, described the second end support means 2 '
Outside be provided with connect described transverse test support 3 end pulling force sensor 24 and connect described in draw
The pulling force stretcher 23 of force snesor 24, described pulling force stretcher 23 connects tension spring 19 and passes through institute
The tension spring 19 stated connects its lower end and is wound around the steel wire rope 17 of pulley 16, described steel wire rope 17 and described
The axis of marine riser model 1 is in the same plane；Described first end support means 2 and the second end support
Device 2 ' uses square iron pipe to be welded respectively；It is provided with to control bar 21 on described marine riser model 1
The control bar suppression system 4 constituted with support means 22, described support means 22 is along described marine riser mould
The length direction of type 1 is equidistant to be arranged on described described marine riser model 1, described control bar 21
It is fixed in the groove of described support means 22 external diameter.
With reference to Fig. 2, the described naked pipe structure that marine riser model 1 is diameter 16mm, outside its composition includes
The thin-wall copper pipe 8 that footpath is 8mm, wall thickness is 1mm, the outer surface of described thin-wall copper pipe 8 sets the most successively
If being equipped with the dried layer thermoplastic tube of close contact and one layer of silicone tube, the outer surface of described thin-wall copper pipe 8 is with described
The multi-disc resistance strain gage difference for gathering the resistance strain gage of strain, described in multi-disc it is provided with between thermoplastic tube
Be connected with a plurality of 7 core wires by binding post, one end of every wire and described thin-wall copper pipe 8 or respectively with
The two ends of described thin-wall copper pipe 8 fix；One end of described thin-wall copper pipe 8 connects the first circle so that pin 7 is fixing
Column joint 5, the other end of described thin-wall copper pipe 8 is more than the first column joint 5 with fixing its diameter that connects of pin 7
The second column joint 6.
Seeing Fig. 3, Fig. 4 and combine Figure 12, Figure 13, described transverse test support 3 includes that main body is horizontal
Beam, the steel pipe that described subject beam is rectangular steel pipe by cross section and some cross sections are square is constituted, in it
Portion is provided with the thin-walled wooden case for placing cuboid keg float, and its top is provided with to support the groove of trailer 20
Steel, described transverse test support 3 is secured by bolts in the bottom of described trailer 20, described trailer
20 are made up of dynamical system, brake system, control system etc., and it is described transverse test support 3 and part
The carrier of measuring and analysis system.
With reference to Fig. 5, Fig. 6, Fig. 7 and combine Fig. 1, described first end support means 2 and the second end
Support means 2 ' includes a stay tube 13 of vertical direction respectively, and described in two, the upper end of a stay tube 13 connects respectively
Connecing the two ends of described transverse test support 3 subject beam, described in two, the bottom of a stay tube 13 connects respectively
The gripper shoe 14 made by steel plate, the inner side of described gripper shoe 14 by deflector fixed screw 18 connect with
Its parallel plastic material deflector 11, on described deflector 11, bolt connects the hog frame of sheet iron bar
12, described transverse test support 3 and described first end support means 2, the second end support means
The end that connects of 2 ' is respectively mounted the down tube 9 with reinforcement effect.
Deflector 11 bottom of described first end support means 2 side has through hole and is provided with universal in through hole
Shaft coupling 10, one end of described universal coupling 10 is fixed on the support of this side by universal coupling screw 15
On plate 14, the other end of described universal coupling 10 and the first of the described marine riser model 1 being positioned at this side
Column joint 5 connects；
Deflector 11 bottom of described the second end support means 2 ' side has Pipe installing through hole, propping up of this side
Being provided with pulley 16 outside fagging 14, the lower section of described pulley 16 has steel wire rope via, laterally tries in this side
The connection end of the subject beam and the second end support means 2 ' of testing support 3 is provided with pulling force sensor 24, institute
The other end stating pulling force sensor 24 is connected with pulling force stretcher 23 and tension spring 19 in turn；Described pulling force
Spring 19 connect from described second column joint 6 through after steel wire rope via in gripper shoe 14 described in this side around
Cross the steel wire rope 17 of described pulley 16, described steel wire rope 17 and the axis of described marine riser model 1
It is in the same plane vertical with carrying out flow path direction.
With reference to Fig. 8, Fig. 9, Figure 10, Figure 11 and combine Fig. 1, described control bar suppression system 4 is with it
Several control bar support meanss 22 equidistantly distributed are connected with described marine riser model 1, described
Control bar support means 22 be made up of a pair half ring flat-plates that edge is aerofoil profile, it use lighter in weight plastics
Make, a diameter of 16mm of its inner circle, can be screwed on described marine riser model 1, described
Control uniform 3 to 5 grooves being used for installing described control bar 21 on the external diameter of bar support means 22, described
Control bar 21 be 3 to 5 corresponding with aforementioned grooves piece, it use relative to marine riser model 1 rigidity
Less rubber strip makes；Described controls bar support means 22 phase in the motion process of marine riser model 1
Position for marine riser model 1 keeps constant and can circumferentially rotate along described marine riser model 1, makes
The described locus controlling bar 21 and described marine riser changes.
The described bar 21 that controls can be described by rotating with the relative angle change of described marine riser model 1
Control bar support means 22 realize.Owing to described controls bar support means 22 along the shape carrying out flow path direction
For aerofoil profile, therefore the flow-disturbing effect controlling bar support means 22 can be substantially reduced.
Measuring and analysis system in the present invention includes from leading that the side of described marine riser model 1 is all drawn
Line, described wire connects resistance strain gage and strain acquirement instrument by binding post respectively, and by described
Strain acquirement instrument connects pulling force sensor 25 and computer.Described wire is from the one of described marine riser model 1
The purpose that side is all drawn is the strain acquirement instrument described in convenient connection.
When making the present invention, should be first according to yardstick, the speed of trailer 20 and the operating condition of test of towing basin
Concrete condition and the economy of test, it is thus achieved that the concrete yardstick of marine riser model 1；Standing according to described ocean
Tube model 1 and the yardstick of trailer 20 and the concrete condition of operating condition of test and economy, determine transverse test support
Frame 3, first end support means 2, the second end support means 2 ' and control bar suppression system 4 material and
Yardstick；Make described marine riser model 1 the most successively, first end support means 2, the second end support
Device 2 ' and control bar suppression system 4；Measuring and analysis system can use commercially available instrument or equipment.
Below as a example by the marine riser model 1 with described control bar suppression system 4, illustrate that it manufactures and makes
By method:
(1) first mark up and down along its axis direction on the thin-wall copper pipe 8 making described marine riser model 1
Four parallel lines the most relative with left and right, determine the paste position of resistance strain gage；
(2) the first column joint 5 and the second cylinder is loaded onto with pin 7 respectively in the two ends of described thin-wall copper pipe 8
Joint 6, removes adhering resistance strain sheets after the copper pipe surface oxide layer of described resistance strain gage paste position,
Seeking the resistance strain gage of right position the most in a pair, the resistance strain gage of upper-lower position the most in a pair, and is adopted respectively
Use half-bridge connection, connect wire by binding post, even with thin adhesive tape by resistance strain gage with binding post simultaneously
The filament connect separates to realize insulation with the copper pipe surface of thin-wall copper pipe 8；
(3) at the silicon rubber that the coating of resistance strain gage location for paste is appropriate, to reach protection and waterproof purpose；
(4) draw the wire of each position to one end of described thin-wall copper pipe 8, and with thin adhesive tape by wire along described
The axis direction of thin-wall copper pipe 8 is fixed, if then dried layer thermoplastic tube on the outer sheath of thin-wall copper pipe 8, then
Described thermoplastic tube outer sheath last layer inner surface is in close contact the silicone tube of described thermoplastic tube, thus completes described
The making of marine riser model 1；
(5) two ends of described transverse test support 3 are fixed on described first end support means 2 and
Two of two end support meanss 2 ' stay tube 13 upper end；
(6) control bar support means 22 described in equidistant installation on described marine riser model 1, and
Control bar 21 described in installing in the groove of described control bar support means 22 external diameter；
(7) wire drawn the side of described marine riser model 1 is along first end support means 2 or the second
End support means 2 ' extends along described first end support means 2 or the second end support means 2 ' respectively
To the one or both ends of transverse test support 3, whole experimental rig is placed in bottom trailer 20, uses trailer
Experimental rig is sling and is arranged on trailer 20 by the loop wheel machine on 20 tops, and regulation is connected to described transverse test and props up
Hold the pulling force stretcher 23 of frame 3 end so that it is end pulling force reaches the value required for operating condition of test；
(8) described pulling force sensor 24 and wire is made to be connected with described strain acquirement instrument, then by described
Strain acquirement instrument connects computer, and described computer-internal is provided with corresponding data collection and analysis software.
(9) all appts device after installing is debugged, after debugging, can be by operating mode and test
Technology requires to test.
Being schematically described technical scheme above by reference to drawings and Examples, this description does not has
Restricted.Those skilled in the art will be understood that in actual applications, and in the present invention, each technical characteristic is equal
It may happen that some change, and other staff are likely to make similar Design under it enlightens.Of particular note
: without departing from the design aim of the present invention, all obvious variations in detail or similar Design, all
Within being included in protection scope of the present invention.
Claims (10)
1. vortex-induced vibration of marine riser controls a bar suppression system, including marine riser model, first end
Support means, the second end support means, transverse test support, trailer, control bar suppression system and
Strain acquirement instrument and computer, it is characterised in that: described marine riser model is by the first of its two ends,
Two end support meanss are supported, the top of described first, second end support means respectively with described horizontal stroke
Being connected to the two ends of test support, the outside of described the second end support means is provided with the described horizontal stroke of connection
To testing the pulling force sensor of support end and connecting the pulling force stretcher of described pulling force sensor, described
Pulling force stretcher connect tension spring and by described tension spring connect its lower end winding pulley steel wire
Rope, the axis of described steel wire rope and described marine riser model is in the same plane；Described marine riser
It is provided with on model to control bar and the control bar suppression system of support means composition, described support means edge
The length direction of described marine riser model is equidistant to be arranged on described marine riser model, described control
Bar processed is fixed in the groove of support means external diameter.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
Described marine riser model is naked pipe structure, its constitute include external diameter be 8mm, wall thickness be the thin-walled of 1mm
Copper pipe, if the outer surface of described thin-wall copper pipe is disposed with the dried layer thermoplastic tube and of close contact from inside to outside
Layer silicone tube, is provided with multi-disc for gathering strain between outer surface and the described thermoplastic tube of described thin-wall copper pipe
Resistance strain gage, the resistance strain gage described in multi-disc is connected with a plurality of wire by binding post respectively, every
Wire and one end of described thin-wall copper pipe or respectively two ends with described thin-wall copper pipe fix；Described thin-wall copper pipe
One end connect first column joint fixing with pin, the other end of described thin-wall copper pipe connects to be fixed with pin
Its diameter is more than the second column joint of the first column joint.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
Described transverse test support includes subject beam, described subject beam by cross section be rectangular steel pipe and
Some cross sections are that square steel pipe is constituted, its internally installed thin-walled wooden case having for placing cuboid keg float, its
Top is provided with to support the channel-section steel of trailer, described transverse test support be secured by bolts in described in drag
The bottom of car, described trailer is made up of dynamical system, brake system, control system etc..
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
First, second described end support means includes a stay tube of vertical direction respectively, a stay tube described in two
Upper end connect the two ends of described transverse test support subject beam respectively, the bottom of a stay tube described in two
Connect the gripper shoe made by steel plate respectively, the inner side of described gripper shoe by deflector fixed screw connect with
Its parallel plastic material deflector, described deflector connects the hog frame of sheet iron bar, institute with bolt
The connection end of the transverse test support stated and described first, second end support means is respectively mounted to have and adds
Gu the down tube of effect.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
The deflector bottom of described first end support means side has through hole and is provided with universal joint shaft in through hole
Joint, one end of described universal coupling is fixed in the gripper shoe of this side by universal coupling screw, and described ten thousand
The first column joint to the other end of shaft coupling with the described marine riser model being positioned at this side is connected.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
The deflector bottom of described the second end support means side has Pipe installing through hole, pacifies outside the gripper shoe of this side
Equipped with pulley, the lower section of described pulley has steel wire rope via, at the subject beam of this side transverse test support
Being provided with pulling force sensor with the connection end of the second end support means, the other end of described pulling force sensor is successively
Connect and have pulling force stretcher and tension spring；Described tension spring connection passes from the second described column joint
Walking around the steel wire rope of described pulley in gripper shoe described in this side after steel wire rope via, described steel wire rope is with described
The axis of marine riser model is in the same plane vertical with carrying out flow path direction.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
The described bar suppression system that controls is stood with described ocean with its several control bar support meanss equidistantly distributed
Tube model is connected, and the described bar support means that controls is made up of half ring flat-plate that a pair edge is aerofoil profile, and passes through
Screw is fixed on described marine riser model；On the external diameter of described control bar support means, uniform several are used
In installing the groove controlling bar.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
First, second described end support means uses square iron pipe to be welded respectively.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, it is characterised in that:
The described bar support means that controls uses the plastic production of lighter in weight, a diameter of 16mm of its inner circle, its external diameter
Upper uniform number of recesses is 3 to 5.
Vortex-induced vibration of marine riser the most according to claim 1 controls bar suppression system, and its feature exists
In: the described bar that controls uses the rubber strip less than marine riser rigidity of model to make, and its quantity is with described
Control that the groove in bar support means is corresponding 3 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610283437.XA CN105890857A (en) | 2016-04-28 | 2016-04-28 | Marine riser vortex-induced vibration control lever restraint system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610283437.XA CN105890857A (en) | 2016-04-28 | 2016-04-28 | Marine riser vortex-induced vibration control lever restraint system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919710A (en) * | 2018-07-11 | 2018-11-30 | 湘潭大学 | Rotational shell active control system based on the application of ocean energy collection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6019549A (en) * | 1996-06-11 | 2000-02-01 | Corrosion Control International Llc | Vortex shedding strake wraps for submerged pilings and pipes |
| US20020168232A1 (en) * | 2001-03-14 | 2002-11-14 | Qi Xu | Vortex-induced vibration reduction device for fluid immersed cylinders |
| CN101418675A (en) * | 2008-11-07 | 2009-04-29 | 中国海洋石油总公司 | Method and device for restraining vortex-induced vibration by underwater pipeline |
| CN101725593A (en) * | 2009-11-18 | 2010-06-09 | 中国海洋石油总公司 | Passive flow control device for inhibiting vortex induced vibration of slender flexible standpipe |
| CN102226380A (en) * | 2011-06-20 | 2011-10-26 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| CN105181281A (en) * | 2015-07-09 | 2015-12-23 | 天津大学 | Inclination angle uniform current condition deep-sea tensioned single riser vortex-induced vibration test device |
-
2016
- 2016-04-28 CN CN201610283437.XA patent/CN105890857A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6019549A (en) * | 1996-06-11 | 2000-02-01 | Corrosion Control International Llc | Vortex shedding strake wraps for submerged pilings and pipes |
| US20020168232A1 (en) * | 2001-03-14 | 2002-11-14 | Qi Xu | Vortex-induced vibration reduction device for fluid immersed cylinders |
| CN101418675A (en) * | 2008-11-07 | 2009-04-29 | 中国海洋石油总公司 | Method and device for restraining vortex-induced vibration by underwater pipeline |
| CN101725593A (en) * | 2009-11-18 | 2010-06-09 | 中国海洋石油总公司 | Passive flow control device for inhibiting vortex induced vibration of slender flexible standpipe |
| CN102226380A (en) * | 2011-06-20 | 2011-10-26 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| CN105181281A (en) * | 2015-07-09 | 2015-12-23 | 天津大学 | Inclination angle uniform current condition deep-sea tensioned single riser vortex-induced vibration test device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919710A (en) * | 2018-07-11 | 2018-11-30 | 湘潭大学 | Rotational shell active control system based on the application of ocean energy collection device |
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