CN107916899A - A kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate in change aperture - Google Patents
A kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate in change aperture Download PDFInfo
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- CN107916899A CN107916899A CN201711195676.0A CN201711195676A CN107916899A CN 107916899 A CN107916899 A CN 107916899A CN 201711195676 A CN201711195676 A CN 201711195676A CN 107916899 A CN107916899 A CN 107916899A
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- 238000000034 method Methods 0.000 title claims abstract description 9
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- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000002401 inhibitory effect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/002—Influencing flow of fluids by influencing the boundary layer
- F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention relates to a kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate in change aperture, device is made of two rotating supports and four pieces of wavy orifice plates, two rotating supports are fixed on standing tube outer wall by the height suit of the wavy orifice plate in one piece of interval, and four pieces of wavy orifice plates are circumferentially equidistantly fixed on rotating support along standpipe.Ocean current impacts wavy orifice plate and drives whole device to be rotated around standpipe, rotating wavy orifice plate constantly cuts the Flow Field around standpipe, and ocean current is induced to produce the vertical and flow adjustment of radial direction along wavy orifice surface, and ocean current further disturbs the Flow Field of standpipe by foring local jet during flow-disturbing hole.Adjusted, under the collective effect of local jet in circumgyration incision, spatial flow, destroy the structure of vortex, realize the suppression of vortex-induced vibration.
Description
Technical field
The invention belongs to marine riser facility laying technology field, and in particular to a kind of rotatable wavy orifice plate in change aperture
Vortex-induced vibration suppression device and method.
Background technology
Marine oil and gas rich reserves, its exploration and development extend to deep-sea from shallow sea, the marine environment severe in face of deep-sea,
The equipment of drilling operation receives stern challenge.Marine riser stands in the breach, the crucial fluid as connection seabed and sea
Passage, its importance and security are self-evident.The long-term marine riser being exposed in deep water subjects the impact of ocean current, seawater
The harm of the physical chemistry such as corrosion.Especially, for ocean current flow velocity in a certain range, the vortex released from standpipe both sides can make standpipe
Vibration frequency is locked in intrinsic frequency, and excitation is significantly vibrated, so as to lure that fatigue fracture occurs for standpipe into, triggers immeasurable calamity
Difficult sexual behavior event.In order to reduce influence of the vibration triggered by vortex to marine riser, it is common practice to installed on standpipe attached
The equipment for inhibiting of vibration of category.
Common restraining device is broadly divided into two kinds：Active control and passive control.Active control is by consuming external energy
Measure active interference Flow Field, such as pivoting lever.Active control needs to consume external energy, and installation is inconvenient and cost is higher,
Seldom adopt in Practical Project.Passive control mainly changes by varying the device outside the surface configuration or plus of standpipe
Section is streamed, so that the generation and development of vortex are influenced, such as separator disk, radome fairing, spiral strake.However, they are to incoming
Direction and flow velocity are more sensitive, often can only limitation flow velocity and flow to play under operating mode and suppress effect.
The content of the invention
Problem to be solved by this invention is for insufficient existing for existing vortex-induced vibration of marine riser restraining device, there is provided
The rotatable change aperture that a kind of simple in structure, dependable performance, in-site installation are convenient, can adapt to any direction incoming automatically is wavy
The vortex-induced vibration suppression device and method of orifice plate.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of vortex-induced vibration suppression device of the rotatable wavy orifice plate in change aperture, by two rotating supports and four pieces of wavy orifice plates
Composition.Rotating support is the nested bearing of inside and outside circle, and respectively bearing inner race, cylindrical roller and roller are kept from the inside to the outside
Frame, bearing outer ring, cylindrical roller is spacing by roller cage, and is embedded between bearing inner race and bearing outer ring；Rotation support
The internal diameter of frame bearing inner race is equal to standpipe outside diameter, the outer surface of bearing outer ring circumferentially four pieces of support plates of equidistantly distributed, every piece
Two vertical inner bolt holes through support plate are provided with support plate, the axis of inner bolt hole is parallel with the axis of rotating support；Two
A rotating support is fixed on standing tube outer wall by the height suit of the wavy orifice plate in one piece of interval.
Wavy orifice plate is the perforated plate of a vertical linear wavy fluctuating in section, and wavy orifice plate is vertical upper and lower etc.
Width, the upper surface and lower face of wavy orifice plate have the support plate inner bolt hole with upper rotating support and lower rotating support
Four pieces of wavy orifice plates, are circumferentially equidistantly fixed on rotating support by corresponding threaded hole by bolt along standpipe.Wavy hole
Plate surface is provided with three row flow-disturbing holes, and wavy orifice plate is run through in flow-disturbing hole, and the flow-disturbing bore dia in same row is identical, the flow-disturbing of different lines
Bore dia is different, and along standpipe, radially aperture is gradually reduced flow-disturbing bore dia from the inside to the outside, i.e., maximum close to the flow-disturbing hole of standpipe, far
It is minimum from the flow-disturbing bore dia of standpipe.
A kind of rotatable change can be provided using the vortex-induced vibration suppression device of the rotatable wavy orifice plate in change aperture
The vortex-induced vibration inhibiting method of the wavy orifice plate in aperture.No matter ocean current flows through standpipe from which direction, all at least two pieces of wavy holes
Plate forms the angle of attack with ocean current, and wavy orifice plate forms moment of torsion under the impact of ocean current, so as to drive whole device to be rotated around standpipe.Rotation
The wavy orifice plate turned constantly cuts the Flow Field around standpipe, the very disruptive separation in boundary layer and the shape for streaming vortex
Into.Meanwhile there are vertical and radial direction flow adjustment in wavy orifice surface for ocean current, on the one hand, since wavy orifice plate is vertical
Corrugate rises and falls, and along wavy orifice surface catenary motion occurs for part ocean current so that the ocean current of different depth occurs spatially
Transfer, weaken ocean current in the plane around the energy of flow, change the three-dimensional spiral structure that original standpipe streams；The opposing party
Face, radially diameter differs in the flow-disturbing hole on wavy orifice plate so that part ocean current is transferred on the outside of standpipe on the inside of standpipe
The flow-disturbing hole of large aperture is by generating flow adjustment radially, and more ocean current is from large aperture flow-disturbing hole on the inside of standpipe
By when, be filled with momentum around laminar boundary layer to standpipe, separation of the standpipe around laminar boundary layer delayed, so as to reduce wake flow
Width, reduces the pressure drag before and after standpipe.In addition, ocean current is by foring local penetrate during the flow-disturbing hole of rotating wavy orifice plate
Stream, further disturbs the Flow Field of standpipe, and the local jet velocity magnitude formed at the flow-disturbing hole of different pore size differs,
Add the turbulent fluctuation degree of Flow Field.Therefore, the flow field cutting of wavy orifice plate, ocean current be vertical and the spatial flow of radial direction rotating
It is dynamic to adjust, under the collective effect of flow-disturbing hole local jet, standpipe plane is reduced around the energy of flow, Flow Field is subject to depth to do
Disturb, the formation of afterbody vortex and three-dimensional spiral structure are destroyed, so as to fulfill the suppression of vortex-induced vibration.
The present invention has the following advantages due to taking above technical scheme：
1st, under the impact of ocean current in any direction of the wavy orifice plate of apparatus of the present invention, rotating support can be driven to be revolved around standpipe
Turn, adaptation flows to marine environment complicated and changeable；
2nd, the wavy orifice plate of apparatus of the present invention is disposably process by light material, and install convenient is corrosion-resistant.
Brief description of the drawings
Fig. 1 is present apparatus overall structure diagram；
Fig. 2 is the fractionation schematic diagram of the single wavy orifice plate of the present apparatus and rotating support；
Fig. 3 is present apparatus rotating support structure diagram；
Fig. 4 is standpipe before and after the installation present apparatus around flow diagram；
Wherein：1st, standpipe；2nd, wavy orifice plate；3rd, flow-disturbing hole；4th, rotating support；5th, bearing inner race；6th, bearing outer ring；7th, cylinder
Roller；8th, roller cage；9th, support plate.
Embodiment
The specific implementation to the present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of vortex-induced vibration suppression device of the rotatable wavy orifice plate in change aperture, by two rotation branch
Support 4 and four pieces of wavy orifice plates 2 form.Rotating support 4 is the nested bearing of inside and outside circle, from the inside to the outside respectively in bearing
Circle 5, cylindrical roller 7 and roller cage 8, bearing outer ring 6, cylindrical roller 7 is spacing by roller cage 8, and is embedded in bearing
Between inner ring 5 and bearing outer ring 6；The internal diameter of 4 bearing inner race 5 of rotating support is equal to 1 outside diameter of standpipe, the appearance of bearing outer ring 6
Face circumferentially four pieces of support plates 9 of equidistantly distributed, are provided with the two vertical inner bolt hole through support plate 9 in every piece of support plate 9, interior
The axis of screw hole is parallel with the axis of rotating support 4；Two rotating supports 4 are by the height set for being spaced one piece of wavy orifice plate 2
Dress is fixed on 1 outer wall of standpipe.
As shown in Fig. 2, wavy orifice plate 2 is the perforated plate of a vertical linear wavy fluctuating in section, wavy orifice plate 2 exists
Vertical upper and lower wide, the upper surface and lower face of wavy orifice plate 2 have and upper rotating support 4 and lower rotating support 4
The corresponding threaded hole of 9 inner bolt hole of support plate, four pieces of wavy orifice plates 2 are equidistantly fixed on by rotation along standpipe 1 is circumferential by bolt
Turn on supporting rack 4.Wavy 2 surface of orifice plate is provided with three row flow-disturbing holes 3, and wavy orifice plate 2 is run through in flow-disturbing hole 3, the flow-disturbing in same row
3 diameter of hole is identical, and 3 diameter of flow-disturbing hole of different lines is different, and radially aperture is gradual from the inside to the outside along standpipe 1 for 3 diameter of flow-disturbing hole
Reduce, i.e., maximum close to the flow-disturbing hole 3 of standpipe 1,3 diameter of flow-disturbing hole away from standpipe 1 is minimum.
As shown in figure 4, one can be provided using the vortex-induced vibration suppression device of the rotatable wavy orifice plate in change aperture
The vortex-induced vibration inhibiting method of the rotatable wavy orifice plate in change aperture of kind.No matter ocean current flows through standpipe 1 from which direction, all at least
Two pieces of wavy orifice plates 2 form the angle of attack with ocean current, and wavy orifice plate 2 forms moment of torsion under the impact of ocean current, so as to drive whole device
Rotated around standpipe 1.Rotating wavy orifice plate 2 constantly cuts the Flow Field around standpipe 1, point in very disruptive boundary layer
From with the formation of streaming vortex.Meanwhile there are vertical and radial direction flow adjustment on wavy 2 surface of orifice plate for ocean current, on the one hand, by
Rise and fall in wavy orifice plate 2 in vertical corrugate, along wavy 2 surface of orifice plate catenary motion occurs for part ocean current so that different deep
Transfer spatially occurs for the ocean current of degree, weaken ocean current in the plane around the energy of flow, change original standpipe 1 streams three
Tie up spiral structure；On the other hand, radially diameter differs in the flow-disturbing hole 3 on wavy orifice plate 2 so that part ocean current is from standpipe
1 outside be transferred to the flow-disturbing hole 3 of 1 inner side large aperture of standpipe by, generate flow adjustment radially, and more ocean current from
1 inner side large aperture flow-disturbing of standpipe, 3 hole by when, be filled with momentum around laminar boundary layer to standpipe 1, delay standpipe 1 and stream side
The separation of interlayer, so as to reduce the width of wake flow, reduces the pressure drag before and after standpipe 1.In addition, ocean current pass through it is rotating wavy
Local jet is formd during the flow-disturbing hole 3 of orifice plate 2, further disturbs the Flow Field of standpipe 1, and the flow-disturbing hole of different pore size
The local jet velocity magnitude formed at 3 differs, and adds the turbulent fluctuation degree of Flow Field.Therefore, wavy orifice plate 2 is being rotated
Flow field cutting, ocean current is vertical and the spatial flow of radial direction adjusts, under the collective effect of 3 local jet of flow-disturbing hole, makes 1 plane of standpipe
Reducing around the energy of flow, Flow Field is subject to depth to disturb, and destroys the formation of afterbody vortex and three-dimensional spiral structure, so as to fulfill
The suppression of vortex-induced vibration.
Specific embodiment：
When apparatus of the present invention are installed, two rotating supports 4 are assembled first, and bearing inner race 5, cylindrical roller 7 and roller are kept
Frame 8, bearing outer ring 6 are assembled from the inside to the outside, and cylindrical roller 7 and roller cage 8 are being embedded in bearing inner race 5 and bearing
Lubricating oil is added during outer ring 6 to ensure the verticity of rotating support 4；Then, by the wavy orifice plate 2 in one piece of interval
Highly, rotationally support frame 4 by two and be set with one on the other and be fixed on 1 outer wall of standpipe, and by upper and lower two rotating supports 4
The inner bolt hole alignment of support plate 9.Between four pieces of wavy orifice plates 2 are positioned over rotating support 4, rotating support is screwed in bolt
The inner bolt hole of 4 support plates 9 and the threaded hole of wavy orifice plate 2, it is by bolt that four pieces of wavy orifice plates 2 are circumferential equidistantly along standpipe 1
It is fixed on rotating support 4.
After installing, the standpipe 1 for being provided with the device is positioned in ocean current.No matter ocean current flowed through from which direction it is vertical
Pipe 1, all at least two pieces wavy orifice plates 2 form the angle of attack with ocean current, and wavy orifice plate 2 forms moment of torsion under the impact of ocean current, so that
Whole device is driven to be rotated around standpipe 1.Rotating wavy orifice plate 2 constantly cuts the Flow Field around standpipe 1, very disruptive
The separation in boundary layer and the formation for streaming vortex.Meanwhile there are vertical and radial direction flowing tune on wavy 2 surface of orifice plate for ocean current
It is whole, on the one hand, since wavy orifice plate 2 rises and falls in vertical corrugate, along wavy 2 surface of orifice plate vertical fortune occurs for part ocean current
It is dynamic so that transfer spatially occurs for the ocean current of different depth, weaken ocean current in the plane around the energy of flow, change original
The three-dimensional spiral structure that standpipe 1 streams；On the other hand, radially diameter differs in the flow-disturbing hole 3 on wavy orifice plate 2 so that
Part ocean current from the outside of standpipe 1 be transferred to the flow-disturbing hole 3 of 1 inner side large aperture of standpipe by, generate flow adjustment radially,
And more ocean current from 1 inner side large aperture flow-disturbing of standpipe, 3 hole by when, be filled with momentum around laminar boundary layer to standpipe 1, postpone
Separation of the standpipe 1 around laminar boundary layer, so as to reduce the width of wake flow, reduces the pressure drag before and after standpipe 1.In addition, ocean current
By foring local jet during the flow-disturbing hole 3 of rotating wavy orifice plate 2, the Flow Field of standpipe 1 is further disturbed, and not
Differ with the local jet velocity magnitude formed at the flow-disturbing hole 3 in aperture, add the turbulent fluctuation degree of Flow Field.Therefore, exist
Rotate the flow field cutting of wavy orifice plate 2, ocean current is vertical and the adjustment of the spatial flow of radial direction, the common of 3 local jet of flow-disturbing hole make
Under, 1 plane of standpipe is set to reduce around the energy of flow, Flow Field is subject to depth to disturb, destroys formation and the three-dimensional of afterbody vortex
Spiral structure, so as to fulfill the suppression of vortex-induced vibration.
Claims (2)
- A kind of 1. vortex-induced vibration suppression device of the rotatable wavy orifice plate in change aperture, by two rotating supports（4）With four blocks of ripples Shape orifice plate（2）Composition；Rotating support（4）For the bearing that inside and outside circle is nested, respectively bearing inner race from the inside to the outside（5）, cylinder Roller（7）And roller cage（8）, bearing outer ring（6）, cylindrical roller（7）By roller cage（8）It is spacing, and it is embedded in axis Hold inner ring（5）And bearing outer ring（6）Between, rotating support（4）Bearing inner race（5）Internal diameter be equal to standpipe（1）Outside diameter；Pass through Bolt is by four pieces of wavy orifice plates（2）Along standpipe（1）It is circumferential to be equidistantly fixed on rotating support（4）On；It is characterized in that：It is described Rotating support（4）Bearing outer ring（6）Outer surface circumferentially four pieces of support plates of equidistantly distributed（9）, every piece of support plate（9） On be provided with and two vertical run through support plate（9）Inner bolt hole, the axis and rotating support of inner bolt hole（4）Axis it is parallel, two A rotating support（4）By the one piece of wavy orifice plate in interval（2）Height suit be fixed on standpipe（1）On outer wall；Described is wavy Orifice plate（2）For the perforated plate of a vertical linear wavy fluctuating in section, wavy orifice plate（2）It is wavy vertical upper and lower wide Orifice plate（2）Upper surface and lower face have and upper rotating support（4）With lower rotating support（4）Support plate（9） The corresponding threaded hole of inner bolt hole；Wavy orifice plate（2）Surface is provided with three row flow-disturbing holes（3）, flow-disturbing hole（3）Through wavy orifice plate（2）, Flow-disturbing hole in same row（3）Diameter is identical, the flow-disturbing hole of different lines（3）Diameter is different, flow-disturbing hole（3）Diameter is along standpipe （1）Radially aperture is gradually reduced from the inside to the outside.
- A kind of 2. vortex-induced vibration inhibiting method of the rotatable wavy orifice plate in change aperture, using as claimed in claim 1 rotatable Become the vortex-induced vibration suppression device of the wavy orifice plate in aperture, it is characterised in that：No matter ocean current flows through standpipe from which direction（1）, all At least two pieces of wavy orifice plates（2）The angle of attack, wavy orifice plate are formed with ocean current（2）Moment of torsion is formed under the impact of ocean current, so that band Dynamic whole device is around standpipe（1）Rotation；Rotating wavy orifice plate（2）To standpipe（1）The Flow Field of surrounding is constantly cut, seriously Upset the separation in boundary layer and stream the formation of vortex；Meanwhile ocean current is in wavy orifice plate（2）There are vertical and radial direction on surface Flow adjustment, on the one hand, due to wavy orifice plate（2）Rise and fall in vertical corrugate, part ocean current is along wavy orifice plate（2）Send out on surface Raw catenary motion so that transfer spatially occurs for the ocean current of different depth, weaken ocean current in the plane around the energy of flow, change Original standpipe is become（1）The three-dimensional spiral structure streamed；On the other hand, wavy orifice plate（2）On flow-disturbing hole（3）Radially diameter It is not of uniform size so that part ocean current is from standpipe（1）Outside is transferred to standpipe（1）The flow-disturbing hole of inner side large aperture（3）By producing Flow adjustment radially, and more ocean current is from standpipe（1）Inner side large aperture flow-disturbing（3）Hole by when, to standpipe（1）'s Momentum is filled with around laminar boundary layer, delays standpipe（1）Around the separation of laminar boundary layer, so as to reduce the width of wake flow, reduce vertical Pipe（1）Front and rear pressure drag；In addition, ocean current passes through rotating wavy orifice plate（2）Flow-disturbing hole（3）When form local penetrate Stream, further disturbs standpipe（1）Flow Field, and the flow-disturbing hole of different pore size（3）The local jet speed for locating to be formed is big It is small to differ, add the turbulent fluctuation degree of Flow Field；Therefore, wavy orifice plate is being rotated（2）Flow field cutting, ocean current is vertical and footpath To spatial flow adjustment, flow-disturbing hole（3）Under the collective effect of local jet, make standpipe（1）Plane reduces around the energy of flow, streams Flow field is subject to depth to disturb, and the formation of afterbody vortex and three-dimensional spiral structure is destroyed, so as to fulfill the suppression of vortex-induced vibration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711195676.0A CN107916899B (en) | 2017-11-24 | 2017-11-24 | A kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate of variable orifice diameter |
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| CN201711195676.0A CN107916899B (en) | 2017-11-24 | 2017-11-24 | A kind of vortex-induced vibration suppression device and method of the rotatable wavy orifice plate of variable orifice diameter |
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| CN107916899B CN107916899B (en) | 2019-03-22 |
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| CN109267668A (en) * | 2018-11-16 | 2019-01-25 | 郑州大学 | A kind of broken whirlpool device of the spin inhibiting steel pipe tall and slender structure vortex-induced vibration |
| CN110296855A (en) * | 2019-07-05 | 2019-10-01 | 上海中认尚科新能源技术有限公司 | Swash the detection method of performance in a kind of high soft anti-whirlpool of pylon of assessment wind power generating set |
| CN111271216A (en) * | 2020-02-02 | 2020-06-12 | 西南石油大学 | Device and method for generating power and suppressing vibration by swinging arc wing plate with rough surface |
| CN113789817A (en) * | 2021-11-16 | 2021-12-14 | 中国海洋大学 | Vortex-type maritime work foundation comprehensive scouring protection device based on multistage vortex breaking device |
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| CN108679357A (en) * | 2018-05-13 | 2018-10-19 | 西南石油大学 | A kind of magnetic force swing is shaken restraining device and method with the whirlpool that water conservancy diversion rotation is combined |
| CN108679357B (en) * | 2018-05-13 | 2019-10-01 | 西南石油大学 | A kind of whirlpool vibration inhibition device and method that magnetic force swing is combined with water conservancy diversion rotation |
| CN109267668A (en) * | 2018-11-16 | 2019-01-25 | 郑州大学 | A kind of broken whirlpool device of the spin inhibiting steel pipe tall and slender structure vortex-induced vibration |
| CN110296855A (en) * | 2019-07-05 | 2019-10-01 | 上海中认尚科新能源技术有限公司 | Swash the detection method of performance in a kind of high soft anti-whirlpool of pylon of assessment wind power generating set |
| CN110296855B (en) * | 2019-07-05 | 2020-11-24 | 上海中认尚科新能源技术有限公司 | Detection method for evaluating vortex-induced-shock resistance of high-flexibility tower of wind generating set |
| CN111271216A (en) * | 2020-02-02 | 2020-06-12 | 西南石油大学 | Device and method for generating power and suppressing vibration by swinging arc wing plate with rough surface |
| CN113789817A (en) * | 2021-11-16 | 2021-12-14 | 中国海洋大学 | Vortex-type maritime work foundation comprehensive scouring protection device based on multistage vortex breaking device |
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