CN106545301B - A kind of rotatable synchronous device and method for realizing piezo-electric generating and vibration suppression - Google Patents
A kind of rotatable synchronous device and method for realizing piezo-electric generating and vibration suppression Download PDFInfo
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- CN106545301B CN106545301B CN201610945601.9A CN201610945601A CN106545301B CN 106545301 B CN106545301 B CN 106545301B CN 201610945601 A CN201610945601 A CN 201610945601A CN 106545301 B CN106545301 B CN 106545301B
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- 230000001629 suppression Effects 0.000 title claims abstract description 19
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000005764 inhibitory process Effects 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
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- 239000013535 sea water Substances 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract 1
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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
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- 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
- F15D1/10—Influencing flow of fluids around bodies of solid material
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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Abstract
The present invention relates to a kind of rotatable synchronous device and method for realizing piezo-electric generating and vibration suppression, device is made of rotary components, piezoelectric element and guiding subassembly.Rotary components are responsible for realizing the spinfunction of whole device, and piezoelectric element and guiding subassembly are asymmetric setting, and piezoelectric element realizes power generation by the deformation of piezoelectric patches, and guiding subassembly then generates the torque needed for rotation by the asymmetric orifice plate of different trepanning density.When seawater passes through the cylinder attached column of piezoelectric patches end, the piece vibration of meeting induced piezoelectric makes piezoelectric patches continuous deformation, generates endlessly electric current.And rotate deflector and piezoelectric patches destroy marine riser surface around laminar boundary layer, affect the formation for streaming vortex, realize the inhibition of vibration.The present apparatus, which depends on marine riser and synchronizes, realizes piezo-electric generating and vibration suppression.
Description
Technical field
The invention belongs to new energy developments to utilize and vortex-induced vibration suppression technology field, and in particular to a kind of rotatable synchronization
Realize piezo-electric generating and the device and method of vibration suppression.
Background technology
With deepening continuously for socio-economic development, energy demand sustainable growth, imbalance between supply and demand also drastically highlights.It is existing
Verify the reduction of resource, the fieriness of problem of environmental pollution, be facing mankind pressing problem.How new energy is developed and utilized
And renewable resource is the breach of human social, the energy conversion form of diversification is increasingly by people's
Concern.Ocean energy is as a kind of inexhaustible, nexhaustible clean energy resource, including wind energy on the sea, tide energy, wave energy, sea
Stream can wait, and significantly be characterized in that there are the flowings of large-scale fluid.It is effectively to convert the kinetic energy of fluid using ocean energy
The energy utilized is good at for mankind such as mechanical energy, electric energy.Traditional fluid dynamic energy conversion depends on wheel rotation, after impeller rotation
Its mechanical energy is converted into electric energy, there is certain loss in energy conversion process.And piezoelectric material be it is a kind of under external force
The material of charge is deformed and generated, is placed it in flowing water body, can be deformed under water impact, so as to generate electricity
Lotus avoids the multiple conversion of form of energy, can effectively reduce energy loss.In addition, the continuous depth with offshore and gas development
Enter, marine riser is placed oneself in the midst of in complicated marine environment, is influenced by the vortex-induced vibration that wave and ocean current induce, is easily formed
Fatigue damage shortens the working life or even causes serious accident.It, will if piezoelectric material is depended on marine riser
The kinetic energy of ocean wave current is converted into electric energy, and can play the role of vortex-induced vibration inhibition, i.e., synchronous to realize piezo-electric generating and vibration
Inhibit, the effect that generation is got twice the result with half the effort.
Invention content
Problem to be solved by this invention inhibits the vortex-induced vibration of marine riser while being and reduce ocean energy conversion energy consumption,
It is proposed a kind of device and method for depending on the rotatable synchronous realization piezo-electric generating of marine riser and vibration suppression.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of rotatable synchronous realization piezo-electric generating and the device of vibration suppression are by rotary components, piezoelectric element and water conservancy diversion group
Part three parts are formed.Rotary components are made of upper and lower two bearings and four wire sockets, and bearing is respectively bearing from inside to outside
Inner ring, retainer and bearing outer ring embedded with cylindrical roller.Bearing inner race card embraces Yu Haiyang standing tube outer wall, bearing outer ring and ocean
It is circumferentially uniformly opened on the vertical side end wall of standpipe pipe axis there are four rectangular hole slot, square hole groove depth is bearing outer ring height
Half, wherein there is a pair of axisymmetric rectangular hole slot to be communicated with threaded hole of the wall surface for internal thread, screw thread hole depth is also axis
The half of bearing outer-ring height.Upper and lower two bearings are installed on marine riser outer wall, and make upper bearing (metal) by the height of a piezoelectric patches
The square hole channel opening of outer ring is downward, and the square hole channel opening of lower axle bearing outer-ring is upward.Wire socket is provided with male thread for one end
Cylinder tubular structure, the end male thread of wire socket with the internal thread of bearing outer ring threaded hole is engaged, makes upper and lower bearing
A pair of symmetrical wire socket is respectively installed on outer ring.
Piezoelectric element is made of piezoelectric patches, attached column and insulated conductor.Piezoelectric patches is the outer rectangular patch for applying waterproof insulating layer
Structure, including one piece of wide piezoelectric patches and one piece of narrow piezoelectric patches, the width of wide piezoelectric patches is more than the width of narrow piezoelectric patches.Every piece of piezoelectricity
The side side wall upper/lower terminal that piece closes on marine riser is equipped with rectangle banking stop corresponding with rectangular hole slot, and insulated conductor is from square
It draws shape banking stop end.Two pieces of piezoelectric patches are inserted into upper and lower bearing outer ring and threaded hole phase by the rectangle banking stop at its both ends
Logical rectangular hole slot is fixed, and the insulated conductor for drawing rectangle banking stop end penetrates wire socket.Every piece of piezoelectric patches is remote
Side side wall from marine riser is laid with a cylinder attached column, and attached column height is equal to piezoelectric patches height, and attached column both ends clamp
There is fastening steel ring, the auricle stretched out by fastening steel ring is anchored on piezoelectric patches side wall by bolt.Wide piezoelectric patches and narrow piezoelectric patches position
It is arranged in same plane, and about marine riser pipe axial symmetry.
Guiding subassembly is made of two pieces of deflectors, respectively close hole deflector and thin hole deflector, the height of deflector etc.
In the height of piezoelectric patches.The rectangle orifice plate and one block of Filled Rectangle plate that every piece of deflector is provided with round deflector hole by one piece are in be less than
90 ° of angle is connected, and cross section is in oblique T shape.The rectangle orifice plate lateral wall of two pieces of deflectors is connected tilting solid
Rectangular slab is mutually parallel.Trepanning density on close hole deflector is more than the trepanning density dredged on the deflector of hole.Every piece of deflector faces
The side side wall upper/lower terminal of nearly marine riser is equipped with rectangle banking stop corresponding with rectangular hole slot, and two pieces of deflectors pass through it
The rectangle banking stop at both ends is inserted into the rectangular hole slot that upper and lower bearing outer ring is not communicated with threaded hole to fix.Close hole deflector
Rectangle orifice plate and the rectangle orifice plate of thin hole deflector are generally aligned in the same plane, and are arranged about marine riser pipe axial symmetry.
It can be provided using the device of the rotatable synchronous realization piezo-electric generating and vibration suppression a kind of rotatable same
The method that step realizes piezo-electric generating and vibration suppression.Sea washes are when on deflector, due to close hole deflector and thin hole water conservancy diversion
The trepanning density of plate is different, and the conveyance capacity of two pieces of deflectors is different, so as to cause asymmetrical hydro-flow thrust, the water
Stream thrust produces the torque rotated around marine riser so that whole device is rotated around marine riser.Deflector it is tilting solid
Rectangular slab subjects the ocean current impact force with rectangle orifice plate different directions, can provide auxiliary torque for the rotation of device, also keep away
The rotation dead angle of whole device is exempted from, whole device is made continual can be rotated under sea washes.In addition, sea washes
When on piezoelectric patches, since wide piezoelectric patches and narrow piezoelectric patches are of different size, asymmetrical impact force is also produced, is whole device
Rotation power-assisted.The deflector and piezoelectric patches of rotation destroy marine riser surface around laminar boundary layer, affect and stream vortex
Formation, it is achieved thereby that vibration inhibition.Meanwhile piezoelectric patches deforms after by water impact, can generate charge, charge from
Insulated conductor is drawn.In addition, after device rotation, two pieces of piezoelectric patches can also deform under turning effort, generate charge.Flow
When flowing through the attached column of piezoelectric patches end, since attached column is cylindrical structure so that the generation of streaming of piezoelectric patches end periodically takes off
The vortex fallen, induction of piezoelectric patches vibration repeatedly, make the continual deformation of piezoelectric patches, generate endlessly electric current.Cause
And synchronizing realizes piezo-electric generating and vibration suppression.
The present invention has the following advantages due to taking above scheme：
1st, the deflector of apparatus of the present invention and attached column are formed using plastic processing, have not only saved cost, but also corrosion-resistant, also for
Whole device provides certain buoyancy.
2nd, the unsymmetric structure of apparatus of the present invention can continuously rotate under flow action, so fully absorb and
Water flow dynamic energy is converted, while is constantly destroyed around laminar boundary layer, inhibits the vibration of marine riser.
Description of the drawings
Fig. 1 is the dimensional structure diagram of apparatus of the present invention
Fig. 2 is bearing arrangement schematic diagram of the present invention
Fig. 3 is bearing outer ring structure diagram of the present invention
Fig. 4 is half bearing outer ring A-A sectional views of the present invention
Fig. 5 is the close hole deflector schematic diagram of the present invention
Fig. 6 is the thin hole deflector schematic diagram of the present invention
Fig. 7 is piezoelectric patches of the present invention and attached column structure diagram
Wherein：1. marine riser；2. wire socket；3. bearing outer ring；4. wide piezoelectric patches；5. narrow piezoelectric patches；6. close hole is led
Flowing plate；7. dredge hole deflector；8. attached column；9. bearing inner race；10. retainer；11. cylindrical roller；12. rectangular hole slot；13. screw thread
Hole；14. rectangle banking stop；15. deflector hole；16. fasten steel ring；17. insulated conductor.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of rotatable synchronous realization piezo-electric generating and the device of vibration suppression are by rotary components, piezoelectricity group
Part and guiding subassembly three parts are formed.Rotary components are made of upper and lower two bearings and four wire sockets 2, bearing by interior and
Outer respectively bearing inner race 9, the retainer 10 embedded with cylindrical roller 11 and bearing outer ring 3, as shown in Figure 2.The card of bearing inner race 9 is embraced
1 outer wall of Yu Haiyang standpipe, circumferentially uniformly opens that there are four sides on the side end wall vertical with 1 pipe axis of marine riser of bearing outer ring 3
Shape hole slot 12, as shown in figure 3,12 depth of rectangular hole slot is the half of 3 height of bearing outer ring, wherein having a pair of axisymmetric rectangular
Hole slot 12 is communicated with threaded hole 13 of the wall surface for internal thread, and 13 depth of threaded hole is also the half of 3 height of bearing outer ring, such as Fig. 4
It is shown.Upper and lower two bearings are installed on 1 outer wall of marine riser, and make the rectangular of upper bearing (metal) outer ring 3 by the height of a piezoelectric patches
Open Side Down for hole slot 12,12 opening upwards of rectangular hole slot of lower axle bearing outer-ring 3.Wire socket 2 is provided with the circle of male thread for one end
Cylinder tubular structure, the end male thread of wire socket 2 with the internal thread of 3 threaded hole 13 of bearing outer ring is engaged, makes upper and lower bearing
A pair of symmetrical wire socket 2 is respectively installed on outer ring 3.
Piezoelectric element is made of piezoelectric patches, attached column 8 and insulated conductor 17.Piezoelectric patches is the outer rectangular sheet for applying waterproof insulating layer
Shape structure, including one piece wide piezoelectric patches 4 and one piece narrow piezoelectric patches 5, the width of wide piezoelectric patches 4 is more than the width of narrow piezoelectric patches 5, such as
Shown in Fig. 7.The side side wall upper/lower terminal that every piece of piezoelectric patches closes on marine riser 1 is equipped with and rectangular 12 corresponding rectangle of hole slot
Banking stop 14, insulated conductor 17 are drawn from 14 end of rectangle banking stop.The rectangle banking stop 14 that two pieces of piezoelectric patches pass through its both ends
The rectangular hole slot 12 that upper and lower bearing outer ring 3 communicates with threaded hole 13 is inserted into fix, and makes what 14 end of rectangle banking stop was drawn
Insulated conductor 17 penetrates wire socket 2.Side side wall of the every piece of piezoelectric patches far from marine riser 1 is laid with a cylinder attached column
8,8 height of attached column is equal to piezoelectric patches height, and 8 both ends of attached column are installed with fastening steel ring 16, the auricle stretched out by fastening steel ring 16
Piezoelectric patches side wall is anchored on by bolt.Wide piezoelectric patches 4 is generally aligned in the same plane with narrow piezoelectric patches 5, and about 1 pipe axis pair of marine riser
Claim arrangement.
Guiding subassembly is made of two pieces of deflectors, respectively close hole deflector 6 and thin hole deflector 7, such as Fig. 5, Fig. 6 institute
Show, the height of deflector is equal to the height of piezoelectric patches.The rectangle orifice plate and one that every piece of deflector is provided with round deflector hole by one piece
Block Filled Rectangle plate is in that the angle less than 90 ° is connected, and cross section is in oblique T shape.Outside the rectangle orifice plate of two pieces of deflectors
The tilting Filled Rectangle plate of side wall linking is mutually parallel.Trepanning density on close hole deflector 6, which is more than, dredges opening on hole deflector 7
Hole density.The side side wall upper/lower terminal that every piece of deflector closes on marine riser 1 is equipped with and rectangular 12 corresponding rectangle of hole slot limit
Bit slice 14, two pieces of deflectors are inserted into what upper and lower bearing outer ring 3 was not communicated with threaded hole 13 by the rectangle banking stop 14 at its both ends
Rectangular hole slot 12 is fixed.The rectangle orifice plate of close hole deflector 6 and the rectangle orifice plate of thin hole deflector 7 are generally aligned in the same plane, and
It is arranged about 1 pipe axial symmetry of marine riser.
It can be provided using the device of the rotatable synchronous realization piezo-electric generating and vibration suppression a kind of rotatable same
The method that step realizes piezo-electric generating and vibration suppression.Sea washes are when on deflector, due to close hole deflector 6 and thin hole water conservancy diversion
The trepanning density of plate 7 is different, and the conveyance capacity of two pieces of deflectors is different, should so as to cause asymmetrical hydro-flow thrust
Hydro-flow thrust produces the torque rotated around marine riser 1 so that whole device is rotated around marine riser 1.Deflector it is tilting
Filled Rectangle plate subjects the ocean current impact force with rectangle orifice plate different directions, can provide auxiliary torque for the rotation of device,
Also the rotation dead angle of whole device is avoided, whole device is made continual can be rotated under sea washes.In addition, seawater
Impact, since wide piezoelectric patches 4 and narrow piezoelectric patches 5 are of different size, also produces asymmetrical impact force when on piezoelectric patches, is whole
The rotation power-assisted of a device.The deflector and piezoelectric patches of rotation destroy 1 surface of marine riser around laminar boundary layer, affect around
The formation of vortex is flowed, it is achieved thereby that the inhibition of vibration.Meanwhile piezoelectric patches deforms after by water impact, can generate charge,
Charge is drawn from insulated conductor 17.In addition, after device rotation, two pieces of piezoelectric patches can also deform under turning effort, generate
Charge.When flow flows through the attached column 8 of piezoelectric patches end, due to attached column 8 be cylindrical structure so that piezoelectric patches end around miscarriage
The raw vortex periodically to come off, induction of piezoelectric patches vibration repeatedly, make the continual deformation of piezoelectric patches, generate continually
Electric current.Thus, synchronizing realizes piezo-electric generating and vibration suppression.
Embodiment：
The present apparatus when mounted, installs lower bearing in 1 outer wall of marine riser first, and the card of bearing inner race 9 is made to embrace marine riser
1, then installation is embedded with the retainer 10 of cylindrical roller 11 and bearing outer ring 3, and makes the rectangular of lower axle bearing outer-ring 3 successively from inside to outside
12 opening upwards of hole slot.Two wire sockets 2 are installed at two threaded holes 13 of lower axle bearing outer-ring 3.Then, by two pieces of piezoelectricity
The rectangular hole slot 12 that piece is communicated by the insertion lower axle of rectangle banking stop 14 bearing outer-ring 3 of its lower end with threaded hole 13, and make rectangle
The insulated conductor 17 that 14 end of banking stop is drawn penetrates wire socket 2.In side side wall of the every piece of piezoelectric patches far from marine riser 1
A piece cylinder attached column 8 is installed.After installation, wide piezoelectric patches 4 is generally aligned in the same plane with narrow piezoelectric patches 5, and is managed about marine riser 1
Axial symmetry is arranged.Equally, two pieces of deflectors are inserted into lower axle bearing outer-ring 3 and threaded hole 13 not by the rectangle banking stop 14 of its lower end
The rectangular hole slot 12 communicated.After installation, the rectangle orifice plate of the rectangle orifice plate of close hole deflector 6 and thin hole deflector 7 is positioned at same
Plane, and arranged about 1 pipe axial symmetry of marine riser.Finally, upper bearing (metal) is installed, and makes two pieces of piezoelectric patches and two pieces of deflectors
Upper end rectangle banking stop 14 is inserted into the rectangular hole slot 12 of corresponding upper bearing (metal) outer ring 3.By insulated conductor 17 from upper and lower bearing outer ring
It is pierced by 3 wire socket 2.
After device installation, it is placed in marine environment.Sea washes are when on deflector, due to close hole deflector 6 and thin hole
The trepanning density of deflector 7 is different, and the conveyance capacity of two pieces of deflectors is different, is pushed away so as to cause asymmetrical flow
Power, the hydro-flow thrust produce the torque rotated around marine riser 1 so that whole device is rotated around marine riser 1.Deflector
Tilting Filled Rectangle plate subjects the ocean current impact force with rectangle orifice plate different directions, and auxiliary can be provided for the rotation of device and is turned round
Square also avoids the rotation dead angle of whole device, whole device is made continual can be rotated under sea washes.In addition,
Sea washes, since wide piezoelectric patches 4 and narrow piezoelectric patches 5 are of different size, also produce asymmetrical impact force when on piezoelectric patches,
Rotation power-assisted for whole device.The deflector and piezoelectric patches of rotation destroy 1 surface of marine riser around laminar boundary layer, influence
The formation of vortex is streamed, it is achieved thereby that the inhibition of vibration.Meanwhile piezoelectric patches deforms after by water impact, can generate
Charge, charge are drawn from insulated conductor 17.In addition, after device rotation, two pieces of piezoelectric patches can also deform under turning effort,
Generate charge.When flow flows through the attached column 8 of piezoelectric patches end, due to attached column 8 be cylindrical structure so that piezoelectric patches end around
The raw vortex periodically to come off of miscarriage, induction of piezoelectric patches vibration repeatedly, make the continual deformation of piezoelectric patches, generate in a steady stream
Continuous electric current.Thus, synchronizing realizes piezo-electric generating and vibration suppression.
Claims (2)
1. a kind of rotatable synchronous device for realizing piezo-electric generating and vibration suppression, it is characterised in that：By rotary components, piezoelectricity group
Part and guiding subassembly three parts are formed；Rotary components are by upper and lower two bearings and four wire sockets（2）Composition, bearing inner race
（9）Card embraces Yu Haiyang standpipe（1）Outer wall, bearing outer ring（3）With marine riser（1）On the vertical side end wall of pipe axis circumferentially
It is even to open there are four rectangular hole slot（12）, rectangular hole slot（12）Depth is bearing outer ring（3）The half of height, wherein there is a pair of of axis pair
The rectangular hole slot claimed（12）With the threaded hole that wall surface is internal thread（13）It communicates, threaded hole（13）Depth is also bearing outer ring（3）
The half of height；Upper and lower two bearings are installed on marine riser by the height of a piezoelectric patches（1）Outer wall, and make outside upper bearing (metal)
The rectangular hole slot of circle（12）Open Side Down, the rectangular hole slot of lower axle bearing outer-ring（12）Opening upwards；Wire socket（2）It is opened for one end
There is the cylinder tubular structure of male thread, by wire socket（2）End male thread and bearing outer ring（3）Threaded hole（13）Interior spiral shell
Line engages, and makes respectively to install a pair of symmetrical wire socket on upper and lower bearing outer ring（2）；Piezoelectric element is by piezoelectric patches, attached column（8）
And insulated conductor（17）Composition；Piezoelectric patches is the outer rectangular sheet structure for applying waterproof insulating layer, including one piece of wide piezoelectric patches（4）With
One piece of narrow piezoelectric patches（5）, wide piezoelectric patches（4）Width be more than narrow piezoelectric patches（5）Width；Every piece of piezoelectric patches closes on marine riser
（1）Side side wall upper/lower terminal be equipped with and rectangular hole slot（12）Corresponding rectangle banking stop（14）, insulated conductor（17）From square
Shape banking stop（14）It draws end；The rectangle banking stop that two pieces of piezoelectric patches pass through its both ends（14）Be inserted into upper and lower bearing outer ring with
Threaded hole（13）The rectangular hole slot communicated（12）To fix, and make rectangle banking stop（14）The insulated conductor that end is drawn（17）It wears
Enter wire socket（2）；Every piece of piezoelectric patches is far from marine riser（1）Side side wall be laid with a cylinder attached column（8）, attached column
（8）Highly it is equal to piezoelectric patches height, attached column（8）Both ends are installed with fastening steel ring（16）, by fastening steel ring（16）The ear of stretching
Piece is anchored on piezoelectric patches side wall by bolt；Wide piezoelectric patches（4）With narrow piezoelectric patches（5）It is generally aligned in the same plane, and about marine riser
（1）Pipe axial symmetry is arranged；Guiding subassembly is made of two pieces of deflectors, respectively close hole deflector（6）With thin hole deflector（7）,
The height of deflector is equal to the height of piezoelectric patches；The rectangle orifice plate and one piece of reality that every piece of deflector is provided with round deflector hole by one piece
Heart rectangular slab is in that the angle less than 90 ° is connected, and cross section is in oblique T shape；The rectangle orifice plate lateral wall of two pieces of deflectors
The tilting Filled Rectangle plate of linking is mutually parallel, close hole deflector（6）On trepanning density be more than dredge hole deflector（7）On open
Hole density；Every piece of deflector closes on marine riser（1）Side side wall upper/lower terminal be equipped with and rectangular hole slot（12）Corresponding square
Shape banking stop（14）, rectangle banking stop that two pieces of deflectors pass through its both ends（14）It is inserted into upper and lower bearing outer ring and threaded hole
（13）The rectangular hole slot being not communicated with（12）To fix；Close hole deflector（6）Rectangle orifice plate and thin hole deflector（7）Rectangular opening
Plate is generally aligned in the same plane, and about marine riser（1）Pipe axial symmetry is arranged.
2. a kind of rotatable synchronous method for realizing piezo-electric generating and vibration suppression, using as described in claim 1 rotatable
The synchronous device for realizing piezo-electric generating and vibration suppression, it is characterised in that：Sea washes are when on deflector, due to close hole water conservancy diversion
Plate（6）With thin hole deflector（7）Trepanning density it is different, the conveyance capacity of two pieces of deflectors is different, non-so as to cause
Symmetrical hydro-flow thrust, the hydro-flow thrust are produced around marine riser（1）The torque of rotation so that whole device is around marine riser
（1）Rotation；The tilting Filled Rectangle plate of deflector subjects the ocean current impact force with rectangle orifice plate different directions, can be device
Rotation provide auxiliary torque, also avoid the rotation dead angle of whole device, make whole device that can continue under sea washes
Continuous rotation；Sea washes are when on piezoelectric patches, due to wide piezoelectric patches（4）With narrow piezoelectric patches（5）It is of different size, also produce
Asymmetrical impact force is the rotation power-assisted of whole device；The deflector and piezoelectric patches of rotation destroy marine riser（1）Surface
Around laminar boundary layer, the formation for streaming vortex is affected, it is achieved thereby that the inhibition of vibration；Meanwhile piezoelectric patches is by water impact
After deform, charge can be generated, charge is from insulated conductor（17）It draws；After device rotation, two pieces of piezoelectric patches are in turning effort
Under can also deform, generate charge；Flow flows through the attached column of piezoelectric patches end（8）When, due to attached column（8）For cylinder knot
Structure so that streaming for piezoelectric patches end generates the vortex that periodically comes off, induction of piezoelectric patches vibration repeatedly, hold piezoelectric patches
Continuous continuous deformation, generates endlessly electric current.
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| CN201610945601.9A CN106545301B (en) | 2016-11-02 | 2016-11-02 | A kind of rotatable synchronous device and method for realizing piezo-electric generating and vibration suppression |
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| CN201610945601.9A CN106545301B (en) | 2016-11-02 | 2016-11-02 | A kind of rotatable synchronous device and method for realizing piezo-electric generating and vibration suppression |
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| CN109236014B (en) * | 2018-11-16 | 2024-04-16 | 郑州大学 | Double spin vortex breaking device for inhibiting vortex-induced vibration of steel pipe high-rise structure |
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