CN110792658B - Marine magnetic suspension vortex-induced vibration suppression device - Google Patents
Marine magnetic suspension vortex-induced vibration suppression device Download PDFInfo
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- CN110792658B CN110792658B CN201911039476.5A CN201911039476A CN110792658B CN 110792658 B CN110792658 B CN 110792658B CN 201911039476 A CN201911039476 A CN 201911039476A CN 110792658 B CN110792658 B CN 110792658B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
The middle part of an upright post is surrounded by a magnetic ring, an annular shell is fixed on the periphery of the magnetic ring, the shell is of a sealing structure, and the annular plate can rotate along with the rotation of blades while the shell is sealed by the sealing structure. The vortex blade that a plurality of outsourcing are evenly fixed to the annular slab lower extreme along the circumferencial direction, a plurality of magnetic drum are evenly fixed along the circumferencial direction in the upper end of annular slab, still fixed battery in the shell, the vortex blade includes connecting axle and blade, connecting axle one end and blade are connected, and the other end agrees with in the draw-in groove of stand, and the upper and lower portion has ball bearing, and the ball is at its track inslot motion of injecing certainly in the ball bearing, the draw-in groove be the ring channel. The invention aims at the situation that the vortex-induced vibration can still restrain the vortex-induced vibration and provide electric energy under the condition of extremely low incoming flow speed, and provides certain electric power supply for the ocean with difficult electric power transmission.
Description
Technical Field
The invention belongs to the field of vortex-induced vibration, and relates to a device for restraining vortex-induced vibration by ocean magnetic suspension.
Background
The progress and development of the times promote the exploration and development of the ocean by human beings. The mineral reserves such as coal and oil stored on land have been gradually exhausted with the rise of industry. The development capital can be owned in the new era pace, and the premise of the high stand and development of a country is provided. Therefore, countries are looking at the vast ocean with abundant resources, and various challenges are faced in various exploration and ocean engineering establishment, and the upright post structure and the vortex-induced vibration damage generated along with the upright post structure exist in various ocean engineering.
From the fluid analysis, any non-streamlined body, under a certain constant flow rate, will generate vortices alternately on both sides of the body, which are separated from the surface of the structure, and the body will generate periodic vibration, and this interaction between the fluid and the structure is called vortex-induced vibration. Researchers and engineers consider vortex-induced vibration to be a harmful phenomenon, and when the vortex-leakage frequency of a fluid flowing through a structure to form a flow field is close to the natural frequency of the structure, resonance is caused, and when the amplitude is large to a certain frequency, the structure is damaged. Measures to suppress vortex-induced vibrations are common: spiral stripes, perforated pipe sleeves, axial battens, control rods, ribbons, partition plates, guide wings, fairing covers and short spoilers.
The Sirele effect is that magnets which are specially magnetized are arranged according to a certain circumference, when a certain magnet positioned around the circumference receives initial thrust and rotates around a middle magnetic ring, other magnets on the circumference can spontaneously accelerate to move to form a magnetic roller. The flying rotation of the magnetic drum generates a gyroscopic effect, and the devices magnetized by each component generate high voltage due to the concentration of energy. There is no air around the device and there is a vacuum in the portion of the magnetic field between the outer rim and the magnetic field. The magnetic field captures photons to make the device emit light, meanwhile, rare earth element neodymium is adopted in the magnet to generate detectable electrons, the detectable electrons can be quickly recovered and regenerated, and peripheral negative ions can be detected. The magnetic roller and the magnetic field ring have independent magnetic fields, the two magnetic fields are perfectly combined, so that the magnetic roller can continuously run on the magnetic field ring, and the changed magnetic field enables surrounding coils to generate SIN type alternating current.
Magnetic levitation, i.e. a technique for levitating an object by using magnetic force to overcome gravity. The magnetic suspension technical system consists of a rotor, a sensor, a controller and an actuator. The rotor is deviated from its reference position by a downward disturbance, the sensor detects the displacement of the rotor from the reference position, the microprocessor as a controller converts the detected displacement into a control signal, and then the power amplifier converts the control signal into a control current, which generates a magnetic force in the actuator magnet, thereby driving the rotor to return to the original equilibrium position. In the operation process, the device has the advantages of extremely small friction, stable operation, no noise and the like.
Disclosure of Invention
1. The technical problem to be solved is as follows:
vortex-induced vibration is a harmful phenomenon in which when the vortex-leakage frequency of a fluid flowing through a structure to form a flow field is close to the natural frequency of the structure, resonance is caused, and when the amplitude is large to a certain frequency, the structure is damaged.
2. The technical scheme is as follows:
in order to solve the above problems, the invention provides an ocean magnetic suspension vortex-induced vibration suppression device, which comprises an upright post, wherein the middle part of the upright post is surrounded by a magnetic ring, the periphery of the magnetic ring is fixedly provided with an annular shell, the shell is a sealing structure, the bottom surface of the shell is an annular plate, the outer side of the inner circle and the outer side of the outer circle of the shell also comprise shell extension areas, each shell extension area comprises a first extension area, a second extension area, a third extension area and a fourth extension area, the first extension area is connected with the bottom of the outer side of the shell and extends outwards perpendicular to the side surface of the shell, one end of the first extension area outside the shell is vertically connected with the second extension area, the second extension area is vertically upward, the upper part of the second extension area is vertically connected with the third extension area, the third extension area is inward in direction and is not connected with the outer side of the shell, and the fourth extension area comprises a vertical part and a horizontal part, the vertical portion and the horizontal part constitute down "T" shape, vertical portion with the third extension district is connected perpendicularly, the vertical direction is downward, the both ends of annular slab also include annular slab extension district, annular slab extension district is located the shell extension district outside to in wrapping up the fourth extension district in shell extension district, fill polytetrafluoroethylene between shell extension district and the annular slab extension district, it has polytetrafluoroethylene also to fill between the outside of the fourth extension district of annular slab extension district parcel shell and the shell outside, a plurality of outside vortex blades of stretching out are evenly fixed along the circumferencial direction to the annular slab lower extreme, a plurality of magnetic drum are evenly fixed along the circumferencial direction in the shell to the upper end of annular slab, still fix a battery in the shell, the vortex blade includes connecting axle and blade, connecting axle one end and blade are connected, the other end is matched in a clamping groove of the upright post, the upper part and the lower part are provided with ball bearings, the ball in the ball bearing moves in a self-limited track groove, and the clamping groove is an annular groove.
A plurality of second superconductor electromagnets are uniformly fixed in an upper end shell of the annular plate along the circumferential direction, and each second superconductor electromagnet corresponds to one first superconductor electromagnet at the upper end in the shell.
The magnetic ring is four layers, and the magnetic ring sequentially comprises the following components from outside to inside: copper conductor, first neodymium iron boron permanent magnet, polytetrafluoroethylene, second neodymium iron boron permanent magnet.
The blades of the turbulence blades are curved surface type blades.
Six turbulence blades, six magnetic rollers, six first superconductor electromagnets and six second superconductor electromagnets are arranged.
The first superconductor electromagnet is a superconductor electromagnet.
3. Has the advantages that:
the invention provides a device for restraining vortex-induced vibration by utilizing a magnetic suspension technology, aiming at the vortex-induced vibration. Compared with a common passive vortex-induced vibration suppression mode, the device can still suppress vortex-induced vibration under the condition of extremely low incoming flow speed. The electric energy is provided for the realization of the magnetic suspension technology through the Sierra effect, and meanwhile, a certain electric power supply is provided for the ocean with difficult electric power transmission.
Drawings
FIG. 1 is a view showing the overall constitution of the apparatus.
Fig. 2 is a schematic view of a sealing structure of the housing.
FIG. 3 is a connecting structure diagram of a spoiler blade and a pillar.
Fig. 4 is a schematic view of the structure of the magnetic ring and the position of the magnetic ring and the column.
FIG. 5 is a schematic view of the positions of the spoiler blade and the annular plate.
1-1 magnetic ring; 1-2 magnetic roller; 1-3 of a shell; 1-4 superconductor electromagnets; 1-5 superconductor electromagnets; 1-6 turbulence blades; 1-7 leaves; 1-8 upright posts; 1-9 storage batteries; 1-10 annular plates; 2-1 copper conductors; 2-3 a first neodymium iron boron permanent magnet; 1-11 polytetrafluoroethylene; 2-5 second Nd-Fe-B permanent magnet; 6-1 card slot; 6-2 ball bearings; 6-3 connecting the shafts.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
An ocean magnetic suspension vortex-induced vibration suppression device comprises upright columns 1-8, wherein the middle parts of the upright columns 1-8 are surrounded by magnetic rings 1-1, annular shells 1-3 are fixed on the peripheries of the magnetic rings 1-1, the shells 1-3 are of sealing structures, as shown in figure 2, the bottom surfaces of the shells 1-3 are annular plates 1-10, the outer sides of the inner circles and the outer circles of the shells 1-3 also comprise shell extension areas, each shell extension area comprises a first extension area 1-3-1, a second extension area 1-3-2, a third extension area 1-3-3 and a fourth extension area 1-3-4, the first extension area 1-3-1 is connected with the bottom of the outer sides of the shells 1-3 and extends outwards perpendicular to the side surfaces of the shells 1-3, the outer end of the first extension area 1-3-1 is vertically connected with the second extension area 1-3-2, the second extension area 1-3-2 is vertically upward, the upper part of the second extension area 1-3-2 is vertically connected with the third extension area 1-3-3, the direction of the third extension area 1-3-3 is inward and is not connected with the outer side of the shell 1-3, the fourth extension area 1-3-4 comprises a vertical part and a horizontal part, the vertical part and the horizontal part form an inverted T shape, the vertical part is vertically connected with the third extension area 1-3-3 and is downward, the two ends of the annular plates 1-10 also comprise annular plate extension areas, and the annular plates extend out of the shell area, and a fourth extension area of the shell extension area is wrapped, polytetrafluoroethylene 1-11 is filled between the shell extension area and the annular plate extension area, and polytetrafluoroethylene 1-11 is also filled between the outer side of the annular plate extension area wrapping the fourth extension area 1-3-4 of the shell and the outer side of the shell. The lower end of the annular plate 1-10 is uniformly fixed with a plurality of turbulence blades 1-6 extending outwards along the circumferential direction, and the upper end of the annular plate 1-10 and the shell 1-3 are uniformly fixed with a plurality of magnetic rollers 1-2 along the circumferential direction.
Polytetrafluoroethylene is used because of the lowest coefficient of friction among solid materials.
The annular plate 1-10 serves as a seal for the bottom of the housing 1-3, and polytetrafluoroethylene is used in the housing extension and the annular plate extension because of the lowest coefficient of friction in the solid material. The sealing structure can achieve the effect of sealing the shell, and can enable the annular plate 1-10 to rotate along with the rotation of the spoiler blade 1-6 at a lower flow velocity, so that the vortex-induced vibration suppression is ensured when the incoming flow velocity is lower, the structure is not damaged in a complex sea condition, and the magnetic roller 1-2 is driven to rotate around the magnetic ring 1-1, so that current is generated.
A storage battery 1-9 is also fixed in the shell 1-3, and the generated current is stored in the storage battery 1-9.
As shown in fig. 3, the spoiler blade 1-6 comprises a connecting shaft 6-3 and a blade 1-7, one end of the connecting shaft 6-3 is connected with the blade 1-7, the other end of the connecting shaft is fitted in a clamping groove 6-1 of the upright post 1-8, the upper part and the lower part of the connecting shaft are provided with ball bearings 6-2, balls in the ball bearings 6-2 move in self-defined track grooves, and the clamping groove 6-1 is an annular groove.
When the incoming flow passes, the rotation of the blades 1-7 of the spoiler blades 1-6 enables the surrounding ocean current not to directly act on the upright posts 1-8, and a new motion track is formed along with the action of the blades 1-7 to drive the blades 1-7 to rotate.
For better effect, the blades 1-7 of the spoiler blades 1-6 are curved surface type blades with high structural strength. When the incoming flow passes through, the rotation of the turbulence blades enables the ocean current around the turbulence blades not to directly act on the upright posts, and a new motion track is formed along with the action of the turbulence blades to drive the blades to rotate.
For better effect, as shown in fig. 1, a plurality of second superconductor electromagnets 1 to 5 are uniformly fixed in the circumferential direction in the upper end casing 1 to 3 of the ring-shaped plate 1 to 10, and one first superconductor electromagnet 1 to 4 is corresponding to each of the second superconductor electromagnets 1 to 5 in the upper end of the casing 1 to 3. In the structure, the second superconductor electromagnets 1-5 rotate along with the annular plates 1-10, and the first superconductor electromagnets 1-4 are fixed, so that the spoiler blades 1-6 are in a suspension state, no mechanical mutual friction exists, and only interaction exists between the spoiler blades and ocean current.
For better effect, the first superconductor electromagnet 1-4 and the second superconductor electromagnet 1-5 are superconductor electromagnets, that is, coils made of superconducting materials, and the wound iron core can generate high-intensity magnetism through high-intensity current. The first superconductor electromagnet 1-4 and the second superconductor electromagnet 1-5 are from current generated by the rotation of the magnetic drum 1-2 around the magnetic ring 1-1.
In order to enable the blades 1 to 7 to rotate continuously, as shown in fig. 4, the magnetic ring 1-1 has four layers, which are sequentially from outside to inside: 2-2 parts of a copper conductor, 2-3 parts of a first neodymium iron boron permanent magnet, 1-11 parts of polytetrafluoroethylene and 2-5 parts of a second neodymium iron boron permanent magnet. Such a structure makes the power generation a siere effect power generation.
When a certain magnet around the circumference is subjected to the initial thrust of the rotation of the annular plate 1-10 and rotates around the middle magnetic ring 1-1, other magnets on the circumference can spontaneously accelerate to form a magnetic roller 1-2. The flying rotation of the magnetic drum 1-2 generates a gyroscopic effect, and the devices magnetized by each component generate high voltage due to the concentration of energy. The magnetic roller 1-2 and the magnetic ring 1-1 have independent magnetic fields, the two magnetic fields are perfectly combined, so that the magnetic roller 1-2 can continuously run on the magnetic ring 1-1, and the changed magnetic field enables surrounding coils to generate SIN type alternating current.
The siere effect has: the anti-attraction effect, namely will break away from the earth's attraction when reaching certain speed, and the relative position between magnetic ring 1-1 and magnetic cylinder 1-2 does not change, and the resistance effect that this apparatus is located in the ocean and receives the ocean current, will not produce the excessive speed; the air around the device is ionized, and the ionized air provides electrons and negative ions for the device; the ambient temperature of the device is reduced, and certain environmental advantages are provided for the superconductivity of magnetic suspension; the radio signals around the device are failed, the radar cannot detect the radio signals, and the device is invisible and provides certain confidentiality; has the advantages of therapeutic effect on human body, etc.
The number of the spoiler blades 1-6, the magnetic roller 1-2, the first superconductor electromagnets 1-4 and the second superconductor electromagnets 1-5 is six.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The utility model provides an ocean magnetic suspension restraines vortex induced vibration device which characterized in that: the magnetic ring type magnetic pole comprises an upright post (1-8), the middle part of the upright post (1-8) is surrounded by a magnetic ring (1-1), an annular shell (1-3) is fixed on the periphery of the magnetic ring (1-1), the shell (1-3) is a sealing structure, the bottom surface of the shell (1-3) is an annular plate (1-10), the outer side of the inner circle and the outer side of the outer circle of the shell (1-3) both comprise shell extension areas, each shell extension area comprises a first extension area (1-3-1), a second extension area (1-3-2), a third extension area (1-3-3) and a fourth extension area (1-3-4), and the first extension area (1-3-1) is connected with the bottom of the outer side of the shell (1-3), and extends outwards perpendicular to the side surface of the shell (1-3), one end of the first extension area (1-3-1) outside is vertically connected with the second extension area (1-3-2), the second extension area (1-3-2) is vertically upward, the upper part of the second extension area (1-3-2) is vertically connected with the third extension area (1-3-3), the third extension area (1-3-3) is inward and is not connected with the outer side of the shell (1-3), the fourth extension area (1-3-4) comprises a vertical part and a horizontal part, the vertical part and the horizontal part form an inverted T shape, the vertical part is vertically connected with the third extension area (1-3-3) and is downward, the both ends of annular slab (1-10) also include annular slab extension district, annular slab extension district is located the shell extension district outside to in the fourth extension district parcel with shell extension district, pack polytetrafluoroethylene (1-11) between shell extension district and the annular slab extension district, annular slab extension district parcel shell also packs polytetrafluoroethylene (1-11) between the outside of fourth extension district (1-3-4) and the shell outside, annular slab (1-10) lower extreme evenly fixes a plurality of outside vortex blade (1-6) that stretch out along the circumferencial direction, evenly fix a plurality of magnetic drum (1-2) along the circumferencial direction in shell (1-3) of the upper end of annular slab (1-10), still fix a battery (1-9) in shell (1-3), the spoiler blade (1-6) comprises a connecting shaft (6-3) and blades (1-7), one end of the connecting shaft (6-3) is connected with the blades (1-7), the other end of the connecting shaft is fitted in a clamping groove (6-1) of the upright post (1-8), ball bearings (6-2) are arranged at the upper and lower parts of the connecting shaft, balls in the ball bearings (6-2) move in a self-defined track groove of the ball bearings, the clamping groove (6-1) is an annular groove, a plurality of second superconductor electromagnets (1-5) are uniformly fixed in a shell (1-3) at the upper end of the annular plate (1-10) along the circumferential direction, and each second superconductor electromagnet (1-5) at the upper end in the shell (1-3) corresponds to one first superconductor electromagnet (1-4), the magnetic ring (1-1) is provided with four layers which are sequentially from outside to inside: copper conductor (2-2), first neodymium iron boron permanent magnet (2-3), polytetrafluoroethylene (1-11), second neodymium iron boron permanent magnet (2-5).
2. The marine magnetic levitation vortex-induced vibration suppression device as recited in claim 1, wherein: the blades (1-7) of the turbulence blades (1-6) are curved-surface blades.
3. The marine magnetic levitation vortex-induced vibration suppression device as recited in claim 2, wherein: six turbulence blades (1-6), magnetic rollers (1-2), first superconductor electromagnets (1-4) and second superconductor electromagnets (1-5) are provided.
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| CN201911039476.5A CN110792658B (en) | 2019-10-29 | 2019-10-29 | Marine magnetic suspension vortex-induced vibration suppression device |
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