CN114486169B - Controllable parameter emission experimental device for underwater vehicle - Google Patents
Controllable parameter emission experimental device for underwater vehicle Download PDFInfo
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- CN114486169B CN114486169B CN202111640330.3A CN202111640330A CN114486169B CN 114486169 B CN114486169 B CN 114486169B CN 202111640330 A CN202111640330 A CN 202111640330A CN 114486169 B CN114486169 B CN 114486169B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/147—Details about the mounting of the sensor to support or covering means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Multimedia (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention belongs to the technical field of ships and ocean engineering, and particularly relates to an underwater vehicle controllable parameter emission experimental device. The invention can control parameters such as different transverse distances, longitudinal distances, emission angles and the like of single-shot and multi-shot underwater navigation bodies, can realize research on cavitation flow development morphological characteristics of double-shot or multi-shot navigation bodies in the water outlet process under different working conditions by combining a high-speed photographic technology and a sensor system, can conveniently research cavitation, supercavitation generation, development, fusion and collapse processes formed on the surfaces of the navigation bodies in the emission process, and can measure collapse loads born by the surfaces of the navigation bodies.
Description
Technical Field
The invention belongs to the technical field of ships and ocean engineering, and particularly relates to an underwater vehicle controllable parameter emission experimental device.
Background
In the process of water outflow of the navigation body, a large amount of gas nuclei originally dissolved in water rapidly expand to form cavitation bubbles due to high temperature and high pressure and rapid change of surrounding flow fields. The plurality of cavitation bubbles are either free around the vehicle or attached to the surface of the vehicle. And along with the water outlet of the navigation body, the water continuously generates, grows, merges and collapses. The collapse pressure can have great influence on the water outlet posture, the structural strength and the like of the navigation body. It is therefore necessary to study the progress of cavitation flow.
A large number of scientific researchers study the method, and systematic scientific researches on the development process of cavitation bubbles, the change characteristics of a flow field and collapse pressure of a single-shot navigation body when the single-shot navigation body is discharged are carried out, and some conclusions are drawn. For the research of double-engine and even multiple engine craft, the foreign data is very popular in recent years, and the research is limited by the equipment, namely, the double engine craft is launched in sequence, and the research focus is also focused on the influence of the flow field change caused by the first engine craft on the navigation posture of the second engine craft. However, there is a very strong sense of hearing in the case of water being discharged from both double and multiple vehicles. Therefore, a structural device with reasonable design is needed to study the development process of cavitation and the change of a flow field when double-shot and even multiple-shot vehicles emit water simultaneously. Has very important significance for engineering practical application and scientific research.
Disclosure of Invention
The invention aims to provide an underwater vehicle controllable parameter emission experimental device.
An underwater vehicle controllable parameter launching experimental device comprises a decompression tank 1, a camera 3 and an underwater vehicle launching experimental device; the underwater vehicle launching experimental device comprises a back plate 6, an attaching wing plate 7, a limit sliding block 8 and a vehicle 9; the backboard 6 is connected with the moving slide rail 5 in the decompression tank 1, and a backboard sliding groove 62 with a certain radian is formed in the surface of the backboard 6; the surface of the attachment wing plate 7 is provided with a parallel wing plate chute 72, and the attachment wing plate 7 is integrally connected in the backboard chute 62; the limit slide block 8 is arranged in a wing plate chute 72 of the attachment wing plate 7; the navigation body 9 is connected with the limit sliding block 8, and a pressure sensor is arranged on the surface of the navigation body 9;
by adjusting the position of the attachment wing plate 7 in the backboard chute 62, the angle of the attachment wing plate 7 and the movement slide rail 5 is adjusted, so that the launching of the navigation body 9 under water at different attack angles is realized; the plurality of groups of navigation bodies 9 can be simultaneously launched underwater by arranging the plurality of groups of limit sliding blocks 8 in the wing plate sliding grooves 72, and the horizontal and longitudinal distances among the plurality of groups of navigation bodies 9 are adjusted by adjusting the positions of different limit sliding blocks in the wing plate sliding grooves 72, so that the plurality of groups of navigation bodies 9 with different time sequences and different horizontal distances can jet water simultaneously; the head of the navigation body 9 can be replaced by different head-shaped gyrorotors, and the gyrorotors are used for analyzing the hydrodynamic performance of the underwater navigation bodies 9 with different head shapes; the vehicle 9 is replaceable with an actively ventilated vehicle for analysis of the surrounding flow field when the vehicle 9 is firing in the presence of ventilated cavitation bubbles.
Further, two backboard sliding grooves 62 with a certain radian and symmetrically distributed are formed in the surface of the backboard 6; two sliding sheets 73 are arranged on the side surface of the attachment wing plate 7, and the two sliding sheets 73 are respectively installed in the two backboard sliding grooves 62, so that the attachment wing plate 7 is restrained by the backboard sliding grooves 62 and the angle between the two is adjustable.
Further, a plurality of groups of parallel equal-length wing plate sliding grooves 72 are formed in the surface of the attachment wing plate 7; the top of the limiting slide block 8 is provided with a large threaded hole 82 for installing the navigation body 9, the bottom of the limiting slide block 8 is provided with a vent hole 83, and the front of the limiting slide block 8 is provided with two small threaded holes 81; the limit slide 8 is bolted in two adjacent wing runners 72 of the attachment wing 7 by means of two small threaded holes 81.
Further, the pressure sensor is installed in the T-shaped buckle 94, the T-shaped buckle 94 is connected with the navigation body 9 through a circular hole formed in the surface of the navigation body 9, and a transmission line of the pressure sensor passes through an air ventilation chamber inside the navigation body 9 and the air ventilation hole 83 of the limit sliding block 8 to be connected to the outside.
The invention has the beneficial effects that:
the invention provides a launching test device capable of controlling parameters such as different transverse distances, longitudinal distances, launching angles and the like of a single-shot and multiple-shot underwater vehicle, which can realize research on cavitation flow development morphological characteristics of the double-shot or multiple-shot vehicle in the water outlet process under different working conditions by combining a high-speed photographic technology with a sensor system, can conveniently research cavitation, supercavitation generation, development, fusion and collapse processes formed on the surface of the vehicle in the launching process, and can measure the collapse load born by the surface of the vehicle.
Drawings
Fig. 1 is a general schematic diagram of an experimental device for launching controllable parameters of an underwater vehicle in the present invention.
Fig. 2 is a schematic diagram of a motion system according to the present invention.
FIG. 3 is a schematic diagram of an underwater vehicle launching experimental apparatus of the present invention.
FIG. 4 is a schematic view of a back plate according to the present invention.
Fig. 5 is a schematic view of an attachment flap of the present invention.
Fig. 6 is a schematic structural diagram of the present invention.
Fig. 7 is a schematic diagram of the assembly of the limit slider, the navigation body and the T-shaped buckle in the invention.
Fig. 8 is a schematic view of a different head rotor.
Fig. 9 is a schematic structural view of an actively ventilated vehicle.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention relates to an underwater vehicle controllable parameter emission experimental device, in particular to an emission experimental device capable of controlling parameters such as different transverse distances, longitudinal distances, emission angles and the like of single-shot and multiple-shot underwater vehicles, capable of conveniently researching cavitation, supercavitation generation, development, fusion and collapse processes formed on the surfaces of the vehicles in the emission process of the vehicles and measuring collapse loads and the like on the surfaces of the vehicles, and belongs to the technical field of ships and ocean engineering.
As shown in fig. 1-2, an underwater vehicle launching experimental device with controllable parameters comprises a decompression tank 1, a control cabinet 2, a camera 3, a camera synchronous controller 4 and the underwater vehicle launching experimental device. The underwater navigation body launching experimental device is placed in a decompression tank 1, launching speed is changed through a control cabinet 2 to launch underwater, then image information is collected by a camera 3 and a camera synchronous controller 4, and pressure information is collected by a sensor.
The decompression tank comprises a tank body and a tank cover, wherein a moving slide rail is arranged on the inner wall of the decompression tank and is used for installing an underwater navigation body emission experimental device, the decompression tank is integrally hollow cylinder, the outer diameter is cm, the inner diameter is 86.5cm, the tank body height is 235cm, the tank cover height is 35cm, and the total height is 270cm.
As shown in fig. 3, in the parameter-controllable underwater vehicle launching experimental device, the backboard 6 is connected with the moving slide rail 5 in the decompression tank, the launching angle can be changed by connecting the attachment wing plate 7 with the backboard 6, the limiting slide block 8 is connected with the vehicle 9 and the attachment wing plate 7, and the transverse distance and the longitudinal distance between the vehicles can be changed by changing the connection position of the limiting slide block 8 on the attachment wing plate 7.
As shown in fig. 4, the back plate 6 comprises 4 threaded holes 61 which are used for fixing and are symmetrically arranged, and 2 sliding grooves 62 which are provided with a certain radian and are symmetrically distributed, the back plate 6 is fixed on a moving sliding rail of the decompression tank through the 4 threaded holes 61, the sliding grooves 62 are connected with the attachment wing plates, the angles of the sliding grooves and the moving sliding rail are limited, and the underwater launching of the navigation body with different attack angles is realized.
As shown in fig. 5, the attachment wing plate 7 comprises 2 threaded holes 71, 2 sliding sheets 73 and 4 parallel sliding grooves 72 with equal length, the back plate 6 is connected with the attachment wing plate 7 through the threaded holes 71 and the sliding grooves 62 by using bolts, so that the angle between the attachment wing plate 7 and the attachment wing plate is restrained by the sliding grooves 62 to be variable, and 2 adjacent parallel sliding grooves 72 are selected to be connected with the limit sliding blocks 8 through bolts.
As shown in fig. 6, the limit slider 8 includes 2 small screw holes 81, 1 large screw hole 82, and a bottom vent hole 83. The limit slide 8 is bolted to the parallel runner 72 on the attachment wing 7 by means of 2 small threaded holes 81, the large threaded holes 82 being used for connection to the craft.
As shown in fig. 7, the navigation body fixing device includes a limit slider 8, a navigation body 9, a T-shaped buckle 94, and a conical rotation body head 95, wherein the navigation body cylindrical cavity can fix the navigation body 9 and the limit slider 8 together through the bottom protruding thread 92 and the threaded hole 82 of the limit slider 8, the conical rotation body head 95 can be installed through the top protruding thread 91, the pressure sensor is installed in the T-shaped buckle 94, and the transmission line is connected to the outside through the inside of the navigation body and the ventilation hole 83.
As shown in fig. 8, the different head-type gyros 95, 96 and 97 can be replaced, so that the water can be ejected from the different head-type gyros by the different head-type gyros, and the hydrodynamic performance of the different head-type underwater vehicle can be analyzed.
As shown in fig. 9, the active ventilation type navigation body 10 can be connected with the limit sliding block 8, so as to realize the water outlet experimental process of the active ventilation type navigation body, and the active ventilation type navigation body is used for analyzing the change of the flow field around the emission of the ventilation cavitation underwater navigation body.
The invention has compact structure and compact arrangement: compared with the traditional underwater vehicle launching device, the underwater vehicle launching device can realize the simultaneous water launching of multiple vehicles, and can effectively realize the double launching and multiple vehicle water launching processes under different parameters by adjusting corresponding structural members. Through the cooperation of device, decompression jar, switch board and motion slide rail each other, can change internal environment pressure, firing rate, firing angle, navigation body head formula, the horizontal distance and the longitudinal distance between the navigation body, the kind of cavitation bubbles attached on the navigation body, combine high-speed photographic technique, realize the research to the cavitation bubble flow development morphological characteristics of two or multiple navigation body water outlet in-process under different operating modes.
Example 1, multiple vessels of different vertical distance shoot water:
(1) The back plate 6 is mounted on the decompression tank moving slide rail 5 through the threaded holes 61 and the attachment wing plates 7 are fixed so as to be immovable in the slide groove 62 by connecting the 2 attachment wing plates 7 with the back plate 6 through the threaded holes 71 and the slide groove 62;
(2) The revolving body 97 is installed through the top protruding thread 91, the navigation body 9 is installed and fixed on the limit sliding block 8 through the bottom protruding thread 92 and the large threaded hole 82, and a plurality of identical combination bodies of the navigation body 9 and the limit sliding block 8 can be assembled in the same way;
(3) The combination of a plurality of identical navigation bodies 9 and limit sliding blocks 8 can be symmetrically arranged in the sliding grooves of the attachment wing plates 7 in the same horizontal direction through the small threaded holes 81;
(4) The water-jet process of multiple sailing bodies at different distances in the vertical direction can be realized by changing the installation position of the limiting slide block 8.
(5) The present invention contemplates a T-shaped button 94 that allows for internal installation of multiple pressure sensors without threads and without rotation. The monitoring surface of the pressure sensor needs to be in direct contact with the flow field, so 4 circular holes are designed on the surface of the navigation body 9;
(6) The T-shaped buckle 94 provided with the pressure sensor is clung to the surface of the navigation body due to the action of the round hole and the transmission line, and the transmission line transmits signals to the outside through the ventilation chamber and the ventilation holes 83;
(7) The pressure of the navigation body in the water outlet process can be measured by processing the signals output by the pressure sensor arranged in the navigation body.
Example 2, double hull water out of different lateral distances and different longitudinal distances:
(1) The attachment wing plate 7 and the back plate 6 are arranged on the decompression tank moving slide rail through the threaded holes 71 and the slide grooves 62, and the attachment wing plate 7 is fixed so as not to rotate;
(2) The revolving body 97 is installed through the top protruding thread 91, the navigation body 9 is installed and fixed on the limit sliding block 8 through the bottom protruding thread 92 and the large threaded hole 82, and a plurality of identical combination bodies of the navigation body 9 and the limit sliding block 8 can be assembled in the same way;
(3) The position of the limit sliding block 8 is adjusted to be positioned on the same horizontal line, so that the double-shot navigation body can shoot water simultaneously. The positions of the limit sliding blocks 8 of the two sailing bodies are gradually close to and far away from each other, so that the transverse distance between the two sailing bodies can be adjusted;
(4) The vertical distance of the limiting slide blocks 8 of the two voyages is adjusted to ensure that the limiting slide blocks are not positioned on the same horizontal line, so that water outlet with different longitudinal distances of the multiple voyages can be realized, and the limiting slide blocks are used for simulating the sequential launching process of the voyages and researching the influence of wake flow of the first voyage on cavitation form of the second voyage.
Example 3 underwater vehicle with different angles of attack jet water:
(1) The attachment wing plate 7 and the back plate 6 are arranged on the decompression tank moving slide rail 5 through the threaded holes 71 and the slide grooves 62;
(2) The navigation body 9 is fixedly arranged on the limit sliding block 8 through the bottom protruding threads 92 and the threaded holes 82;
(3) Turning the attachment flap 7 changes its relative angle to the back plate 6 to achieve water egress from the vehicle at different angles of attack.
Example 4, multiple vehicle multiple emissions:
(1) The attachment wing plate 7 is connected with the back plate 6 through the threaded hole 71 and the sliding groove 62, the back plate 6 is arranged on the decompression tank moving slide rail through the threaded hole 61 and the attachment wing plate 7 is fixed so as not to move in the sliding groove 62;
(2) The revolving body 97 is installed through the top protruding thread 91, the navigation body 9 is installed and fixed on the limit sliding block 8 through the bottom protruding thread 92 and the large threaded hole 82, and a plurality of identical combination bodies of the navigation body 9 and the limit sliding block 8 can be assembled in the same way;
(3) According to the requirements, the length of the attachment wing plate 7 can be changed, the number of the limit sliding blocks 8 can be increased, three or more water outlet processes of the navigation body can be realized, and the longitudinal distance of the position of the limit sliding blocks 8 on the parallel sliding grooves 72 can also be changed, so that the water outlet processes of multiple navigation bodies with different sequences can be realized.
Example 5 cavitation development process of different head rotors or actively ventilated vehicles and fusion of cavitation:
(1) The attachment wing plate 7 is connected with the back plate 6 through the threaded hole 71 and the sliding groove 62, the back plate 6 is arranged on the decompression tank moving slide rail through the threaded hole 61 and the attachment wing plate 7 is fixed so as not to move in the sliding groove 62;
(2) The method comprises the steps of respectively installing different head-shaped revolving bodies 95, 96 and 97 through a top protruding thread 91, installing and fixing a navigation body 9 on a limit sliding block 8 through a bottom protruding thread 92 and a large threaded hole 82, or installing and fixing an active ventilation navigation body 10 on the limit sliding block 8 through a screw rod and the threaded hole 82, and assembling a plurality of navigation bodies 9 with different head-shaped revolving bodies or a combination of the active ventilation navigation body 10 and the limit sliding block 8 in the same way;
(3) According to the requirements, the water injection process of the navigation body 9 or the active ventilation navigation body 10 of different head-shaped gyrorotor can be realized. Different head-shaped gyrorotor or ventilation cavitation can cause different influences on the flow field when the navigation body discharges water, thereby further influencing the cavitation development process in the water discharge process of the navigation body.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An underwater navigation body controllable parameter emission experimental device is characterized in that: comprises a decompression tank (1), a camera (3) and an underwater vehicle launching experimental device; the underwater vehicle launching experimental device comprises a back plate (6), an attaching wing plate (7), a limiting slide block (8) and a vehicle (9); the backboard (6) is connected with a moving slide rail (5) in the decompression tank (1), and a backboard sliding groove (62) with a certain radian is formed in the surface of the backboard (6); the surface of the attaching wing plate (7) is provided with parallel wing plate sliding grooves (72), and the attaching wing plate (7) is integrally connected in the backboard sliding grooves (62); the limit sliding block (8) is arranged in a wing plate sliding groove (72) of the attachment wing plate (7); the navigation body (9) is connected with the limit sliding block (8), and a pressure sensor is arranged on the surface of the navigation body (9);
the angle between the attachment wing plate (7) and the moving slide rail (5) is adjusted by adjusting the position of the attachment wing plate (7) in the backboard slide groove (62), so that the underwater launching of the navigation body (9) at different attack angles is realized; the plurality of groups of navigation bodies (9) can be simultaneously launched underwater by arranging the plurality of groups of limit sliding blocks (8) in the wing plate sliding grooves (72), and the plurality of groups of navigation bodies (9) with different time sequences and different transverse distances can be simultaneously launched by adjusting the positions of the different limit sliding blocks in the wing plate sliding grooves (72) to adjust the transverse and longitudinal distances between the plurality of groups of navigation bodies (9); the head of the navigation body (9) can be replaced by different head-shaped gyrorotors, and the gyrorotor is used for analyzing the hydrodynamic performance of the underwater navigation bodies (9) with different head shapes; the vehicle (9) is replaceable with an actively ventilated vehicle for analysing the surrounding flow field when the vehicle (9) is launched in the presence of ventilated cavitation bubbles.
2. An underwater vehicle controllable parameter launch experiment device as claimed in claim 1, wherein: two backboard sliding grooves (62) which have a certain radian and are symmetrically distributed are formed in the surface of the backboard (6); two sliding sheets (73) are arranged on the side surfaces of the attachment wing plates (7), the two sliding sheets (73) are respectively installed in the two backboard sliding grooves (62), and the attachment wing plates (7) are constrained by the backboard sliding grooves (62) and the angle between the two sliding sheets is adjustable.
3. An underwater vehicle controllable parameter launch experiment device as claimed in claim 2, wherein: a plurality of groups of parallel equal-length wing plate sliding grooves (72) are formed in the surface of the attaching wing plate (7); the top of the limiting slide block (8) is provided with a large threaded hole (82) for installing a navigation body (9), the bottom of the limiting slide block is provided with a vent hole (83), and the front of the limiting slide block (8) is provided with two small threaded holes (81); the limit slide block (8) is connected in two adjacent wing plate sliding grooves (72) of the attachment wing plate (7) through two small threaded holes (81) by using bolts.
4. An underwater vehicle controllable parameter launch experiment device as claimed in claim 3, wherein: the pressure sensor is arranged in the T-shaped buckle (94), the T-shaped buckle (94) is connected with the navigation body (9) through a round hole formed in the surface of the navigation body (9), and a transmission line of the pressure sensor penetrates through an air ventilation chamber in the navigation body (9) and an air vent (83) of the limiting sliding block (8) to be connected to the outside.
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| CN202111640330.3A CN114486169B (en) | 2021-12-29 | 2021-12-29 | Controllable parameter emission experimental device for underwater vehicle |
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| CN202111640330.3A CN114486169B (en) | 2021-12-29 | 2021-12-29 | Controllable parameter emission experimental device for underwater vehicle |
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| CN114486169A CN114486169A (en) | 2022-05-13 |
| CN114486169B true CN114486169B (en) | 2023-08-01 |
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| CN115420153B (en) * | 2022-08-31 | 2023-09-19 | 东北大学 | Supercavitation bullet cross-medium test device |
Citations (3)
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|---|---|---|---|---|
| US5205162A (en) * | 1992-10-05 | 1993-04-27 | The United States Of America As Represented By The Secretary Of The Navy | Underwater vehicle launch performance test facility |
| CN104296961A (en) * | 2014-10-15 | 2015-01-21 | 哈尔滨工程大学 | Device and method for large-scale bubble experiment in reduced pressure environment |
| CN108956087A (en) * | 2018-04-13 | 2018-12-07 | 哈尔滨工程大学 | High speed water outlet sail body bubbling crystallzation multiphase flow feature measurement experimental provision and method |
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2021
- 2021-12-29 CN CN202111640330.3A patent/CN114486169B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205162A (en) * | 1992-10-05 | 1993-04-27 | The United States Of America As Represented By The Secretary Of The Navy | Underwater vehicle launch performance test facility |
| CN104296961A (en) * | 2014-10-15 | 2015-01-21 | 哈尔滨工程大学 | Device and method for large-scale bubble experiment in reduced pressure environment |
| CN108956087A (en) * | 2018-04-13 | 2018-12-07 | 哈尔滨工程大学 | High speed water outlet sail body bubbling crystallzation multiphase flow feature measurement experimental provision and method |
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| Numerical investigation of underwater natural supercavitating projectiles operating with the empennages;Zhang, Mu等;《Ji suan li xue xue bao》;全文 * |
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