WO2016204349A1 - Système de cavitation de véhicule sous-marin supercavitant mettant en œuvre un réservoir d'air comprimé - Google Patents

Système de cavitation de véhicule sous-marin supercavitant mettant en œuvre un réservoir d'air comprimé Download PDF

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Publication number
WO2016204349A1
WO2016204349A1 PCT/KR2015/010973 KR2015010973W WO2016204349A1 WO 2016204349 A1 WO2016204349 A1 WO 2016204349A1 KR 2015010973 W KR2015010973 W KR 2015010973W WO 2016204349 A1 WO2016204349 A1 WO 2016204349A1
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WO
WIPO (PCT)
Prior art keywords
compressed air
cavitation
underwater vehicle
air tank
transcendental
Prior art date
Application number
PCT/KR2015/010973
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English (en)
Korean (ko)
Inventor
안병권
Original Assignee
충남대학교산학협력단
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Publication of WO2016204349A1 publication Critical patent/WO2016204349A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B19/00—Marine torpedoes, e.g. launched by surface vessels or submarines; Sea mines having self-propulsion means
    • F42B19/005—Nose caps for torpedoes; Coupling torpedo-case parts together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/34—Tubular projectiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/38—Range-increasing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B19/00—Marine torpedoes, e.g. launched by surface vessels or submarines; Sea mines having self-propulsion means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Definitions

  • the present invention relates to a cavitation system of an underwater moving body moving at high speed in the water using the transcendental cavity phenomenon.
  • the drag varies greatly depending on the frontal head shape of the underwater vehicle, and most of the drag acting on the underwater vehicle after the transcendental cavity is concentrated in the cavities.
  • the shapes of the cavities developed so far are conical and disc types.
  • the conical shape is advantageous in terms of resistance and linear stability (vibration force), but is limited by the shape of the body of the aquatic body located behind the cavator because of the smaller transverse cavity shape that occurs compared to the disc type.
  • the disk type is disadvantageous in terms of resistance and straightness stability, but is less limited in the shape of the body of the underwater vehicle because of its larger transverse cavity shape than the cone type.
  • the present invention has been proposed to solve the above problems, to provide a cavitation system of the transcendental joint underwater vehicle to form an artificial transcendental cavity by discharging the compressed air inside the compressed air tank to the front head during the launch of the underwater vehicle. To do that.
  • a conversion type cavitation device installed in the front head of the underwater vehicle and changed from a cone shape to a disk shape when the underwater vehicle is launched;
  • a compressed air tank is connected to the rear of the converting cavitation, a compressed air moving pipe is connected to an outlet of the compressed air tank, a compressed air discharge port is connected to an end of the compressed air moving pipe, and the compressed air discharge port is a front end of the underwater moving object.
  • the compressed air tank discharges the compressed air stored therein to the compressed air moving tube when the underwater moving object reaches a certain speed
  • the compressed air moving tube supplies compressed air to the compressed air discharge port
  • the compressed air discharge port discharges the compressed air to the outside of the underwater moving body to form an artificial transcendental cavity.
  • a 'cavator' system of motor vehicles Provides a 'cavator' system of motor vehicles.
  • the converting cavities are provided with two or more cavitation elements, each of the cavitation element is layered in the front and rear direction at the beginning of the launch of the underwater vehicle to form a conical shape, the speed of the underwater vehicle increases Then, the front cavitation element is sequentially inserted into the rear cavitation element to sink and finally form a disc shape.
  • the compressed air tank supplies internal compressed air to the compressed air outlet according to the change of the shape of the converting cavity, and the point of changing the shape of the converting cavity is adjusted according to the air pressure inside the compressed air tank.
  • the present invention may further include a pressure sensor for measuring the air pressure inside the compressed air tank, but opens the compressed air valve when the measured air pressure exceeds the set value.
  • the compressed air tank supplies the compressed air to the compressed air outlet according to the operation of the pressure sensor and the compressed air valve, and the compressed air discharge point of the compressed air outlet is set by the pressure sensor.
  • the convertible cavator includes a low U cavator element, a second cavator element and a third cavator element, wherein the first cavator element, the second cavator element and The third cavitation element is layered in order from the front to the rear to form a conical shape.
  • the first cavitation element is first inserted into the second cavitation element and recessed.
  • the first and second cavitation elements are then inserted together into the low 13 cavitation elements and recessed to form a disc shape.
  • the first cavitation element is conical in shape.
  • the second cavator element is a shape in which the upper end of the cone is cut off, and the first U-cavator element inserted into the first accommodation space and the first accommodation space capable of accommodating the low U-cavity element and the second accommodation cavity A first stopper is provided to hold the cavities out of the cavities.
  • the third cavator element is a shape in which the top end of the cone is cut out and a second accommodation space capable of accommodating the second cavitation element and the second cavitation element inserted into the second accommodation space are inserted into the third accommodation space.
  • a second stopper is provided to hold it out of the cavity element.
  • the height of the first cavator element is less than or equal to the height of the second cavator element and the height of the second cavator element is less than or equal to the height of the third cavator element.
  • a piston shaft facing rearward is connected to the first cavator element, and a piston is installed at an end of the piston shaft, and a cylinder facing rearward is connected to the three-cavity element, and the piston shaft is connected to the second cavitation element. And extends into the cylinder through the third cavator element, wherein the piston is moved in accordance with the movement of the piston shaft when the first cavator element or the second cavator element is recessed rearward. Ride the wall and move backwards.
  • a first sliding element is installed at a rear end of the system 2 cavator element, and the first sliding element is pushed backward by the second cavitation element to enter the cylinder.
  • the shape change timing of the conversion type cavator is adjusted according to the frictional force between the first sliding element and the cylinder wall surface.
  • the compressed air tank is connected to a rear end of the cylinder, and a second sliding element is installed at an inner front end of the compressed air tank, and the second sliding element is pushed by the piston to move to the rear of the compressed air tank.
  • a compressed air moving tube is connected to the outlet of the compressed air tank, and a compressed air valve is installed at the connection point between the compressed air tank and the compressed air moving tube, and the outlet of the compressed air tank is the initial launch of the underwater vehicle.
  • the compressed air valve It is blocked by the compressed air valve and is opened by being pushed to the valve moving tube behind the compressed air valve rearward when the piston or the second sliding element is moved backward.
  • a spring is installed at an end of the compressed air valve in the valve moving tube, and the spring operates to maintain the compressed air valve blocking the outlet of the compressed air tank at the beginning of the launch of the underwater vehicle.
  • the outlet of the compressed air tank is the compressed air at the beginning of the launch of the underwater vehicle It is closed by an air valve and opens as the pressure sensor operates while the speed of the underwater body gradually increases.
  • the position and the number of the compressed air outlets are designed to be symmetrical in the up and down and left and right sides of the underwater vehicle. When the compressed air outlets are two or more, each of the compressed air outlets is configured to be selectively opened and closed.
  • a sub-compressed air moving tube connected to the inner space of the cylinder and the compressed air moving tube in the form of a bypass tube with respect to the compressed air moving tube;
  • a sub-compressed air valve installed in the sub-compressed air moving pipe, the sub-compressed air moving pipe opening and closing the sub-compressed air moving pipe according to the operation of the sub-pressure sensor;
  • a sub pressure sensor configured to move to the compressed air moving tube
  • the configuration of the ventilation system for this becomes very simple, and the characteristics of the temperature, pressure, and component of the compressed air This uniformity makes it possible to form stable transcendental cavities over time.
  • the cavator maintains a conical shape at the beginning of the launch of the underwater vehicle, reducing resistance and vibration force, and as the speed increases, the cavator sequentially changes into a disk shape, and the transcendental cavity that occurs accordingly increases. Are less restricted by the shape of the body.
  • 1 is a water vapor vehicle covered with a transcendental cavity.
  • Figure 3 is a shape of the transcendental joint underwater moving body according to the present invention.
  • FIG. 4 is a configuration of a conversion type cavator according to a first embodiment of the present invention.
  • FIG. 5 is a configuration of a conversion type cavator according to a second embodiment of the present invention.
  • Figure 6 is a step-by-step operation of the conversion type cavator according to the first embodiment of the present invention.
  • FIG. 7 is a step-by-step operation method of the convertible cavator according to the second embodiment of the present invention.
  • 22a Total space for accommodating one 22b: First stopper
  • Sub compressed air moving tube 101 Sub compressed air valve
  • FIG. 3 shows the shape of the transcendental joint underwater vehicle 10 according to the present invention.
  • the frontal head of the transcendental joint underwater vehicle 10 according to the present invention is provided with a convertible cavitation 20 (FIG. 3).
  • Convertible cavitation 20 is in contrast to the conventional conical (Cone Type) or disk-type (Disk Type) cavator, the conical or disk-type cavator is fixed in shape but does not change the Transformation cavitation (20) It is characterized by maintaining the cone shape at the beginning of the launching of the transcendental joint underwater vehicle 10 and gradually changing to a disc shape as the speed increases.
  • the convertible cavitation 20 is provided with two or more cavitation elements for changing the shape as described above. At first, each cavitation element is layered in the front and rear directions between each other. ) Is in the shape of a cone, but gradually the front cavitation element is inserted into the rear cavitation element in sequence, and eventually the conversion type cavitation 20 is changed into a disc shape.
  • the convertible cavitation 20 includes two or more cavitation elements for changing the shape, and the number of such cavitation elements may be designed in various ways according to the size or shape of the underwater vehicle 10. It can be.
  • the embodiments of the present invention related to the configuration and operation of the convertible cavitation 20 will be described by dividing the first embodiment and the second embodiment, and in this case, the converting cavities 20 It is assumed that the cavitation element is provided.
  • First Embodiment (Passive) The first embodiment of the present invention is a case where the discharge of the compressed air through the compressed air outlet 80 is passive (natural) by the pressure rise of the compressed air tank 50. 4 shows the configuration of the conversion type cavitation 20 according to the first embodiment of the present invention.
  • the conversion-type cavator 20 includes a first cavitation element 21, a second cavitation element 22, a third cavitation element 23, and the like.
  • Three cavitation elements are layered with each other to form an overall conical shape (FIG. 6A).
  • the low U cavitation element 21, the second cavitation element 22 and the system three cavitation element 23 are arranged in order from the front of the underwater body 10 to the rear.
  • each cavitation element is sequentially inserted into the rear cavitation element to be recessed and finally the disc shape Is achieved. More specifically, firstly, the first cavitation element 21 is inserted into the rear second cavitation element 22 to be recessed (B of FIG. 6), and then the first cavitation element 21 is taken. And second cabinet The rotor element 22 is inserted and recessed together into the third cavitation element 23 (FIG. 6C). As a result, the conversion type cavity 20 which was initially a cone shape (A of FIG. 6) eventually turns into a disc shape (C of FIG. 6).
  • the first cavitation element 21 is conical.
  • the second cavitation element 22 is a shape in which the upper end of the cone is cut out, and the center of the body has a first accommodation space 22a that can accommodate the first cavitation element 21 when it is inserted and recessed. . Since the front end of the first accommodating space 22a is open, the system one cavitation element 21 can be inserted into the system one accommodating space 22a to be recessed. However, the rear end of the first accommodation space 22a is not opened and is blocked by the first stopper 22b.
  • the first stopper 22b corresponds to the bottom surface of the second cavitation element 22, in which the first cavitation element 21 is inserted into the low U accommodation space 22a. ) It serves to hold the product so that it does not exit. Thus, once the first cavitation element 21 is inserted into the second cavitation element 22 and recessed, the first cavitation element 21 and the second cavity are not the first cavitation element 21 alone.
  • the data element 22 is integrally inserted together and inserted into the third cavitation element 23 to be recessed.
  • the third cavity element 23 is shaped like the second cavity element 22 with the upper end of the cone cut out, which can accommodate the second cavity element 22 when the second cavity element 22 is inserted and recessed.
  • the second accommodation space 23a is provided.
  • the front end of the second accommodation space 23a is open As such, the second cavitation element 22 can be inserted into the system receiving space 23a to be recessed. However, the rear end of the system receiving space 23a is not opened and is blocked by the second stopper 23b.
  • the system second stopper 23W corresponds to the bottom surface of the third cavitation element 23, in which the second cavitation element 22 inserted into the second accommodation space 23a is connected to the third cavitation element 23.
  • the first cavitation element 21 and the second cavitation element 22 are inserted into the total three cavitation element 23 and are recessed.
  • the shaped cavity 20 finally has a disc shape (Fig. 6C), in which the converting cavity 20 is ultimately disc shaped and thus has the advantages of a disc shaped cavity.
  • the height of the cavitation element 21 is less than or equal to the height of the second cavitation element 22 and the height of the second cavitation element 22 is less than or equal to the height of the third cavitation element 23.
  • the relationship between the heights of the first cavator element 21, the second cavator element 22, and the third cavator element 23 is the same. If the height of the second cavitation element 23 is greater than the height of the cavitation element 22 or the third cavitation element 23 or the height of the third cavitation element 23, 20) is not desirable since it will continue to maintain some conical shape.
  • the lower U-cavator element 21 is connected to the rearward piston shaft 31 and is The piston 32 is installed at the end of the piston shaft 31.
  • the piston shaft 31 extends into the cylinder 33 through the second and third cavator elements 22 and the piston 32 moves in response to the movement of the piston shaft 31. Will move backwards on the wall. In this case, the piston shaft 31 moves when the first cavitation element 21 or the second cavitation element 22 is recessed backwards (B, C of FIG. 6).
  • the first sliding element 40 is installed at the rear end of the second cavitation element 22. The first sliding element 40 has a through hole in the center of the body and the piston shaft 31 passes through the through hole.
  • the first sliding element 40 is pushed by the second cavitation element 22 into the cylinder 33 when the second cavitation element 22 is inserted into the third cavitation element 23 and recessed. (FIG. 6C).
  • the reason for having the first sliding element 40 in the present invention will be described.
  • the converting cavitation 20 receives a resistance that prevents the movement of the underwater vehicle 10 from the front, and the force of the underwater vehicle 10 is increased. It increases in proportion to the speed.
  • the first cavitation element 21 and the second cavitation element 22 are sequentially inserted and recessed backward by the force.
  • the point of depression of the second cavitation element 22, that is, the point of change of the shape of the conversion type cab 20 may be adjusted. All. If the frictional force between the sliding element 40 and the wall of the cylinder 33 is large, a large force is required to push the sliding element 40 into the cylinder 33, and if the frictional force is small, a relatively small force is required. I need strength. Accordingly, when the frictional force between the first sliding element 40 and the wall of the cylinder 33 is increased, the second cavitation element 22 is at the point where the speed of the underwater moving object 10 increases significantly, that is, the conversion cavitation 20.
  • the frictional force can be reduced so that even when the speed of the underwater vehicle 10 is not relatively high, It is possible for 22 to be recessed into the third cavitation element 23.
  • the depression of the second cavitation element 22 is closely related to the formation of artificial supercavity as the compressed air in the compressed air tank 50 is discharged to the outside as described below. According to the frictional force between the sliding element 40 and the wall of the cylinder 33, ultimately, the timing of formation of the transcendental cavity can be controlled.
  • the first sliding element 40 may be made of metal, rubber or other synthetic fiber material, and adjusts the friction force between the first sliding element 40 and the wall of the cylinder 33 according to the size or material of the first sliding element 40. It is possible to do In the case of the present invention, the shape change point of the conversion type cavitation 20 is basically a compression hole.
  • the air pressure inside the tank 50 is adjusted. That is, as shown in FIG. 6, the piston 32 can move backwards only by overcoming the air pressure in the compressed air tank 50 (this is also the case for the second sliding element 60 described later). , If the air pressure inside the compressed air tank 50 is large, the back movement time and speed of the piston 32 will be slow.
  • the shape change of the convertible cavitation 20 is also controlled by adjusting the frictional force between the first sliding element 40 and the wall of the cylinder 33 as well as the air pressure inside the compressed air tank 50 as described above. You can adjust the view point.
  • the compressed air tank 50 is connected to the rear end of the cylinder 33, and the compressed air is stored inside the compressed air tank 50.
  • a second sliding element 60 is installed at the inner front end of the compressed air tank 50. That is, the second sliding element 60 is installed at a position where the rear end of the cylinder 33 and the front end of the compressed air tank 50 abut.
  • the system 2 sliding element 60 is pushed back by the piston 32 when the system 2 cavitation element 22 is inserted into the third cavitation element 23 and is recessed to ride the wall of the compressed air tank 50.
  • the rear end of the compressed air tank 50 is connected to the compressed air moving pipe (70).
  • the rear end of the compressed air tank 50 corresponds to the outlet through which the compressed air comes out, and at the initial stage (the launching point of the transversely moving underwater vehicle 10), the outlet is blocked by the compressed air valve 71. .
  • the compressed air valve 71 is installed at the connection point between the compressed air tank 50 and the compressed air moving pipe 70, and moves along the valve moving pipe 72 connected to the rear.
  • the piston 32 moves backwards (B of FIG. 6) or the second sliding element 60 moves backwards (C of FIG. 6)
  • the inside of the compressed air tank 50 (more specifically, The pressure of the two-sliding element (60) rear space is increased and the compressed air valve 71 is pushed to the rear valve moving tube (72) by the pressure.
  • the outlet of the compressed air tank 50 is opened. At this time, the compressed air exiting the outlet is moved along the compressed air moving tube 70 and finally discharged to the outside (underwater) through the compressed air outlet 80 .
  • the valve 73, the spring 73 is installed at the end of the compressed air valve (71). Therefore, at the initial stage (starting time of the transcendental joint underwater vehicle 10), the compressed air valve 71 is blocked by the action of the spring 73 to block the outlet of the compressed air tank 50. In addition, if the speed of the underwater vehicle 10 is gradually increased, the degree of push-out (distance and timing) of the compressed air valve 71 can be adjusted according to the magnitude of the elastic force of the spring 73.
  • the reason for having the compressed air outlet 80 in the present invention is artificial transcendence (Artificial To form a supercavity.
  • the compressed air discharge port 80 is installed at the front end of the transcendental cavity underwater body 10.
  • a compressed air moving tube 70 which is a passage for moving the compressed air of the compressed air tank 50 to the compressed air outlet 80 is provided. 4 and 6, the compressed air moving tube 70 is designed to start at the outlet of the compressed air tank 50 and bend its end toward the compressed air discharge port 80.
  • the position and number of the compressed air outlet 80 may be variously designed according to the size or shape of the underwater vehicle 10, but the compressed air outlet 80 when considering the resistance and the linear stability of the underwater vehicle 10
  • the position and number of the bar is to be designed to be symmetrical up and down and left and right of the underwater vehicle (10) It is good.
  • a total of four compressed air outlets 80 are installed to be symmetrical in the up, down, left, and right directions.
  • the converting cavity 20 maintains a conical shape at the beginning of the launching of the transcendental underwater vehicle 10
  • resistance and vibration force can be reduced as compared with the conventional disc shaped cavator ( 6A).
  • the conversion type cavity 20 sequentially turns into a disc shape, and thus the transverse cavity shape generated accordingly becomes larger than the conventional cone type cavity (FIG. 6C). Because of this, the body shape of the underwater body 10 is less restricted.
  • the second embodiment of the present invention is a case where the discharge of the compressed air through the compressed air discharge port 80 is made active (artificial) by the operation of the pressure sensor 90.
  • the pressure sensor 90 is further configured compared to the example (FIG. 5).
  • the function and operation of the pressure sensor 90 will be mainly described, and the same content as in the first embodiment will be omitted.
  • 5 shows a configuration of a convertible cavitation 20 according to a second embodiment of the present invention.
  • 7 is a step of the conversion type cavitation 20 according to the second embodiment of the present invention It shows how it works.
  • a compressed air tank 50 is connected to the rear end of the cylinder 33, and the compressed air is stored inside the compressed air tank 50 (Fig. 5).
  • a second sliding element 60 is installed at the inner front end of the compressed air tank 50. That is, the system 2 sliding element 60 is installed in the position where the rear end of the cylinder 33 and the front end of the compressed air tank 50 abut. The second sliding element 60 is pushed by the piston 32 to move backwards on the wall of the compressed air tank 50 when the second cavity element 22 is inserted into the third cavity element 23 and is recessed. Done (C in FIG. 7). The rear end of the compressed air tank 50 is connected to the compressed air moving pipe (70).
  • the rear end of the compressed air tank 50 corresponds to the outlet through which the compressed air comes out, and at the initial stage (the launching point of the transversely moving underwater body 10), the outlet is closed by the compressed air valve 71. .
  • the compressed air valve 71 is installed at the connection point between the compressed air tank 50 and the compressed air moving tube 70. After the launch of the transcendental underwater moving body 10, a predetermined time passes to the operation of the pressure sensor 90. Open accordingly. That is, when the piston 32 moves backward (B of FIG. 7) or the second sliding element 60 moves backward (C of FIG. 7) as described above, the cylinder 33 or the compressed air tank 50 The internal pressure is increased, and the compressed air valve 71 is opened during the operation of the pressure sensor 90 according to the increase of the pressure.
  • the outlet of the compressed air tank 50 is opened and the outlet Compressed air moves along the compressed air transfer pipe (70) and is finally discharged to the outside (underwater) through the compressed air outlet (80).
  • the compressed air discharge timing of the compressed air discharge port 80 is actively controlled by the set value of the pressure sensor (90).
  • the pressure sensor 90 measures the air pressure in the compressed air tank 50 and is electrically connected to the compressed air valve 71 (FIG. 5).
  • the pressure sensor 90 opens the compressed air valve 71 when the measured air pressure exceeds a set value so that the compressed air inside the compressed air tank 50 is discharged to the outside.
  • the compressed air discharge point will be slow, but if the set value of the pressure sensor 90 is small, the compressed air discharge point is also faster.
  • the larger the set value of the pressure sensor 90 the slower the compressed air discharge point of the compressed air outlet 80 is, and the smaller the set value of the pressure sensor 90 is, the more the compressed air outlet 80 is compressed. The time to release the air is faster.
  • the compressed air outlet 80 is installed at the front end of the transcendental cavity underwater body 10. And a compressed air moving tube 70 which is a passage for moving to the compressed air virtual air compressed air outlet 80 of the compressed air tank 50 is installed.
  • the compressed air moving tube 70 is designed to start at the outlet of the compressed air tank 50 and bend toward the compressed air discharge port 80.
  • the position and number of the compressed air outlet 80 may vary depending on the size or shape of the underwater vehicle 10. Although it may be designed, the position and number of the compressed air outlet 80 is preferably designed to be symmetrical up and down and left and right of the underwater vehicle 10 when considering the resistance and the linear stability side of the underwater vehicle 10.
  • a total of four compressed air outlets 80 are installed to be symmetrical up and down and left and right, and each of the compressed air discharge ports 80 is divided into four divided compressed air moving tubes ( One-to-one connection with the end of 70).
  • each compressed air outlet 80 when there are two or more compressed air outlets 80, it is highly desirable to configure each compressed air outlet 80 to be selectively opened and closed in terms of positively affecting the stable operation of the underwater vehicle 10. Do.
  • the compressed air outlet 80 when the compressed air outlet 80 is installed one each on the upper and lower sides and the left and right sides of the underwater vehicle 10 as in the second embodiment of the present invention, the lower one according to the operating speed of the underwater vehicle 10 Compressed air is discharged through the compressed air outlet (80) first, and then compressed air is discharged in the order of two compressed air outlets (80) at the left and right, and one compressed air outlet (80) at the top (of course, finally Compressed air will be discharged through all four compressed air outlets 80).
  • the second embodiment of the present invention is provided with a sub-compressed air moving tube 100 in front of the compressed air tank 50 (Fig. 5).
  • the sub-compressed air moving tube 100 is a tube connecting the internal space of the cylinder 33 and the compressed air moving tube 70.
  • the sub-compressed air moving tube 100 is It is connected to the compressed air pipe (70) in the form of a bypass (by-pass) pipe.
  • the sub-compressed air moving tube 100 is provided with a sub-compressed air valve 101 for opening and closing the sub-compressed air moving tube 100, the sub-compressed air valve 101 is to the operation of the sub-pressure sensor (110). It is opened and closed accordingly.
  • the sub-compressed air valve (10) operates according to the operation of the sub-pressure sensor 110 according to the increase of the pressure. 101 is opened. Then, the compressed air in the cylinder 33 is moved to the compressed air moving tube 70 along the sub-compressed air moving tube 100 and finally discharged to the outside (water) through the compressed air discharge outlet 80.
  • the opening and closing time of the sub-compressed air valve 101 is actively controlled by the setting value of the sub-pressure sensor 110.
  • the sub pressure sensor 110 measures the air pressure inside the cylinder 33 and is electrically connected to the sub compressed air valve 101 (FIG. 5).
  • the sub pressure sensor 110 opens the sub compressed air valve 101 to allow the compressed air inside the cylinder 33 to move to the compressed air moving tube 70. Therefore, if the setting value of the sub-pressure sensor 110 is large, the movement time of the compressed air will be slow, but if the setting value of the sub-pressure sensor 110 is small, the movement time of the compressed air is also faster. In summary, the larger the set value of the sub pressure sensor 110, the slower the compressed air discharge point of the compressed air outlet 80, and the smaller the set value of the sub pressure sensor 110, the smaller the pressure. The compressed air discharge point of the axial air outlet 80 is faster.
  • the compressed air discharge port 80 is installed one each on the upper and lower sides and the left and right sides of the underwater moving object 10, the compressed air moving pipe 70 is divided into four branches, the end of the compressed air discharge port One-to-one connection to 80.
  • the sub-compressed air moving pipe 100 is provided with a total of four, each of the sub-compressed air moving pipe 100 is connected in the form of a bypass pipe for the four branches of the compressed air moving pipe (70).
  • Each of the four sub-compressed air moving pipes 100 is provided with a sub-compressed air valve 101, and each sub-compressed air valve 101 is connected to the sub-pressure sensor 110 separately.
  • the present invention can not only easily implement the transcendental phenomena of the water vapor movement body, but also simplify the system configuration for this, and at the same time can reduce the resistance and vibration force of the water movement body, the present invention in the field of shipbuilding and marine industry It is a technology that can be widely used to realize its practical and economic value.

Abstract

La présente invention concerne un système de cavitation d'un véhicule sous-marin supercavitant mettant en œuvre un réservoir d'air comprimé. Selon la présente invention, la cavitation est obtenue non pas au moyen des gaz d'échappement d'un véhicule sous-marin mais au moyen de l'air comprimé à l'intérieur d'un réservoir d'air comprimé et, de ce fait, la configuration d'un système de ventilation pour celui-ci est considérablement simplifiée et, de plus, les propriétés de l'air comprimé telles que la température, la pression, la substance, etc. sont homogènes, ce qui permet d'assurer la formation stable d'une supercavitation en fonction du temps. En outre, lors de la période précoce d'un lancement du véhicule sous-marin, un dispositif de cavitation du type à conversion maintient une forme conique, permettant ainsi la réduction des forces de résistance et d'excitation, et le dispositif de cavitation du type à conversion adopte consécutivement une forme de disque circulaire à mesure que la vitesse augmente, et la forme d'une supercavitation résultant de celui-ci s'agrandit également, ce qui permet de réduire les restrictions s'appliquant à la forme du corps du véhicule sous-marin.
PCT/KR2015/010973 2015-06-19 2015-10-16 Système de cavitation de véhicule sous-marin supercavitant mettant en œuvre un réservoir d'air comprimé WO2016204349A1 (fr)

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KR1020150087657A KR101570323B1 (ko) 2015-06-19 2015-06-19 압축공기탱크를 이용한 초월공동 수중운동체의 캐비테이터 시스템
KR10-2015-0087657 2015-06-19

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CN110274750A (zh) * 2019-07-25 2019-09-24 哈尔滨工业大学 一种带有弹性尾缘的超空泡航行体试验模型
US10486773B2 (en) * 2018-04-20 2019-11-26 Agency For Defense Development Cavitator system for suppressing cavity buoyancy effect and method thereof
CN112550553A (zh) * 2020-12-07 2021-03-26 河北汉光重工有限责任公司 一种外形可调空化器

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KR101903269B1 (ko) 2017-01-12 2018-10-01 국방과학연구소 초공동 수중 운동체의 캐비테이터 구동 시스템
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CN113091531B (zh) * 2021-03-03 2023-03-17 上海机电工程研究所 一种超空泡航行运载器
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