CN117682022A - Hydrodynamic model for wake test of underwater vehicle - Google Patents

Hydrodynamic model for wake test of underwater vehicle Download PDF

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Publication number
CN117682022A
CN117682022A CN202311867381.9A CN202311867381A CN117682022A CN 117682022 A CN117682022 A CN 117682022A CN 202311867381 A CN202311867381 A CN 202311867381A CN 117682022 A CN117682022 A CN 117682022A
Authority
CN
China
Prior art keywords
hydrodynamic model
underwater vehicle
sword
tail
plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311867381.9A
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Chinese (zh)
Inventor
史圣哲
高现娇
王丽丽
江婷
王凡
范建军
全士能
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China Special Vehicle Research Institute
Original Assignee
China Special Vehicle Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Special Vehicle Research Institute filed Critical China Special Vehicle Research Institute
Priority to CN202311867381.9A priority Critical patent/CN117682022A/en
Publication of CN117682022A publication Critical patent/CN117682022A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • B63B71/20—Designing vessels; Predicting their performance using towing tanks or model basins for designing
    • 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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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The invention provides a hydrodynamic model for an underwater vehicle wake test, which comprises the following components: a hull shell (11), a steel skeleton (6) and a hydrodynamic model tail (2); 2 sword base mounting butt plates (64), an inner ring (65) and a corner device (8) are arranged on the steel skeleton (6); the double sword passes through the hull shell (11) and is connected with 2 sword seat mounting butt plates (64); the steel skeleton (6) is detachably connected with the tail part (2) of the hydrodynamic model through sleeved inner and outer rings; the corner device (8) is connected with a motor and used for converting angular movement into horizontal movement. The hydrodynamic model does not contain any motor equipment, does not need to meet watertight requirements, and is high in reliability.

Description

Hydrodynamic model for wake test of underwater vehicle
Technical Field
The invention belongs to the technical field of towing tank hydrodynamic tests, and particularly relates to a hydrodynamic model for an underwater vehicle accompanying flow test.
Background
The wake test of the underwater vehicle is a test for measuring the wake score at the position of the propeller, and can effectively improve the propulsion efficiency of the underwater vehicle.
The data of carrying out the wake test of the underwater vehicle in the towing tank are less, and the design structural scheme for a specific test model is lacking.
Disclosure of Invention
The invention provides a hydrodynamic model for an underwater vehicle accompanying test, which can finish the underwater vehicle accompanying test in a towing tank, does not contain any motor equipment in the underwater vehicle accompanying test, and does not need to meet watertight requirements.
The invention provides a hydrodynamic model for an underwater vehicle wake test, which comprises the following components: hydrodynamic model hull 1, hydrodynamic model tail 2;
the hydrodynamic model hull 1 includes: the steel skeleton 6 is arranged inside the hull shell 11;
2 sword seat mounting butt plates 64 are arranged on the upper surface of the steel skeleton 6, an inner ring 65 is arranged on the end face of the tail part, and a corner device 8 is arranged inside the tail part;
the double sword passes through the boat body shell 11 and is connected with 2 sword seat mounting butt plates 64;
an outer ring 7 is embedded in the tail part 2 of the hydrodynamic model, and the outer ring 7 is sleeved on the inner ring 65 and connected through screws;
the corner device 8 includes: a vertical axis 81 and a horizontal axis 82;
the vertical shaft 81 is connected with a motor and is used for converting angular movement into horizontal movement of the horizontal shaft 82, and an extension section of the horizontal shaft 82 extends out of the central axis of the tail 2 of the hydrodynamic model.
Optionally, the steel skeleton 6 further includes: 4 annular plates 61, 4 angle irons 62 and 2 square annular plates 63;
two ends of the 4 angle irons 62 are connected with 2 square annular plates 63 to form a rectangular frame;
two of the 4 annular plates 61 are respectively sleeved outside the square annular plate 63, and the remaining two annular plates are sleeved outside the 4 angle irons 62;
the 2 sword base mounting butt plates 64 are arranged on the upper surface of the rectangular frame, and the center distance between the 2 sword base mounting butt plates 64 is the distance between the centers of double swords;
the outer contour of the annular plate 61 is mutually attached to the inner wall of the hull shell 11, four 90-degree angle openings 612 are formed in the inner contour of the annular plate 61, and the angle openings 612 are mutually welded with 4 angle irons 62;
the inner ring 65 is welded to the end face of the annular plate 61 near the hydrodynamic model tail 2, and is welded inside the inner ring 65;
the inner wall of the outer ring 7 is in clearance fit with the outer wall of the inner ring 65, the inner ring 65 is uniformly provided with 8 threaded holes along the periphery, the outer ring 7 is uniformly provided with 8 through holes along the periphery, and the inner ring and the outer ring are connected by flat head screws.
Optionally, the annular plate 61 has relief holes 611;
the base mounting butt plate 64 is a square iron plate with a thickness of 10mm, and has two screw holes 641, and screws pass through the screw holes 641 to connect the double-sword and the base mounting butt plate 64.
Optionally, five hatch covers 5 are arranged above the hull casing 11, and the five hatch covers 5 comprise a first hatch cover 51, two second hatch covers 52 and three third hatch covers 53;
the top projection of the five hatch covers 5 is square or rectangular;
the first hatch 51 is located directly above the corner 8, provided with a hatch hole 511 for passing through the extension axis of the vertical shaft 81;
the two second hatch covers 52 are respectively positioned right above the two rapier seat mounting butt plates 64, each second hatch cover 52 is divided into two symmetrical left and right blocks, and a hatch cover opening 521 for passing a rapier is arranged in the middle of the two second hatch covers after the two second hatch covers are combined;
the third hatch 53 is open for adjusting the ballast of the hydrodynamic model hull 1 such that the center of gravity of the hydrodynamic model is located between the 2 sword mount abutment plates 64.
Optionally, the hull shell 11 is an equal-thickness shell processed by glass fiber reinforced plastics, and the thickness is 5-10 mm.
Optionally, a water overflow hole with the diameter of 20mm is arranged below the water overflow hole.
Optionally, the angle turning device 8 is fixed at the tail part of the steel skeleton 6 through the angle turning device base 9, and the horizontal shaft 82 is positioned on the central axis of the hydrodynamic model boat body 1 and the hydrodynamic model tail part 2 by the height of the angle turning device 8.
Optionally, the hydrodynamic model tail 2 includes: a stern rudder 3;
the stern rudder 3 is a cross rudder 31 or an X-rudder 32.
Optionally, when the stern rudder 3 is a cross rudder 31, the hydrodynamic model tail 2 further includes: the catheter 4 of the propeller.
Optionally, a stern shaft hole 21 is provided at the central axis of the stern rudder 3 for the extension shaft of the horizontal shaft 82 to pass through.
The invention provides a hydrodynamic model for an underwater vehicle wake test, which does not contain any motor equipment in the hydrodynamic model, does not need to meet watertight requirements and has high reliability. The stern of the hydrodynamic model is replaceable, so that the comparison of wake flow tests of different stern rudder layouts and propulsion modes can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a hydrodynamic model of an underwater vehicle wake test;
FIG. 2 is a schematic view of a hydrodynamic model boat body;
FIG. 3 is a schematic view of a steel skeleton structure;
FIG. 4 is a schematic view of a steel skeleton middle angle iron component frame;
FIG. 5 is a schematic view of an annular plate;
FIG. 6 is a schematic view of a sword mount interface plate;
FIG. 7 is a schematic illustration of the inner and outer rings;
FIG. 8 is a schematic view of a corner fitting and a schematic view of a corner fitting installation;
FIG. 9 is a schematic view of three forms of hatch cover;
FIG. 10 is a schematic diagram of the tail of a hydrodynamic model of a rudder plus conduit;
FIG. 11 is a schematic view of the hydrodynamic model tail of the rudder;
FIG. 12 is a schematic view of the hydrodynamic model tail of an X-rudder;
reference numerals illustrate:
the marine engine comprises a hydrodynamic model boat body 1, a hydrodynamic model tail 2, a stern rudder 3, a guide pipe 4 of a propeller, a hatch cover 5, a steel skeleton 6, an outer ring 7, a corner device 8 and a corner device base 9;
a hull shell 11, a stern shaft hole 21, a cross rudder 31 and an X-shaped rudder 32;
first hatch cover 51, second hatch cover 52, third hatch cover 53, hatch cover hole 511, hatch cover opening 521;
the annular plate 61, the angle iron 62, the square annular plate 63, the sword base mounting butt plate 64 and the inner ring 65;
lightening hole 611, angle opening 612, threaded hole 641;
a vertical axis 81 and a horizontal axis 82.
Detailed Description
The hydrodynamic model of the wake test of the underwater vehicle provided by the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-12, the present invention provides a hydrodynamic model of an underwater vehicle wake test, comprising: a hydrodynamic model boat body 1 and a hydrodynamic model tail 2.
As shown in fig. 1, the hydrodynamic model for the wake test of the underwater vehicle in this embodiment is composed of a hydrodynamic model hull 1 and a hydrodynamic model tail 2, the hydrodynamic model tail 2 includes a stern rudder 3, a conduit 4 of a propeller, and the like, five hatch covers 5 are provided above the model hull 1, and an overflow hole with a diameter of 20mm is provided below.
As shown in fig. 2, the hydrodynamic model hull 1 of the embodiment is composed of a hull shell 11, a hatch cover 5 and a steel skeleton 6, wherein the hull shell 11 is processed into a shell with equal thickness by adopting glass fiber reinforced plastics, and the thickness is 5-10 mm.
As shown in fig. 3, the steel skeleton 6 of the present embodiment is formed by welding 4 annular plates 61, 4 angle irons 62, 2 square annular plates 63, 2 sword base mounting butt plates 64, and an inner ring 65. The 4 annular plates 61 are welded on the 4 angle irons 62 in a uniformly distributed manner as much as possible, the center distance between the 2 rapier base mounting and abutting plates 64 is the distance between the centers of double rapiers, and the center distance between the 2 rapier base mounting and abutting plates 64 in the embodiment is 1.48m.
As shown in fig. 4, angle iron 62 and square ring plate 63 in steel skeleton 6 of this embodiment form a frame.
As shown in fig. 5, the outer contour of the annular plate 61 of the present embodiment is attached to the inner wall of the hull 11, the annular plate 61 has a lightening hole 611, four 90-degree angle openings 612 are formed in the inner contour of the annular plate 61, and the angle openings 612 are welded to the angle irons 62 in the frame, so as to increase the welding area and strength.
As shown in fig. 6, the holder mounting abutment plate 64 of the present embodiment is a square iron plate having a thickness of 10mm, and has two screw holes 641 for connection with a holder, which is a part of an underwater test device of an underwater vehicle.
As shown in fig. 7, the inner ring 65 of the present embodiment is welded to the annular plate 61 of the steel skeleton 6 near the hydrodynamic model tail 2, and the welding is only on the inner side of the inner ring 65 to prevent the outer ring 7 from being unable to bottom out when the inner ring 65 is nested. The inner wall of the outer ring 7 is in clearance fit with the outer wall of the inner ring 65 for connecting the hydrodynamic model hull 1 and the hydrodynamic model tail 2. The outer ring 7 is pre-buried in the inside of the shell of the hydrodynamic model tail 2. The inner ring 65 is uniformly provided with 8 threaded holes along the periphery, the outer ring 7 is uniformly provided with 8 through holes along the periphery, and the two are connected by flat head screws. When the hydrodynamic model tail 2 is replaced, the screw is loosened, and the hydrodynamic model tail 2 and the outer ring 7 are taken down together for replacement.
As shown in fig. 8, the corner device 8 of this embodiment has two shafts, one is a vertical shaft 81 and the other is a horizontal shaft 82, a stepping motor is arranged on the trailer and extends to one shaft under water, the vertical shaft 81 is connected, the corner device 8 converts the angular motion into the horizontal direction, namely the horizontal shaft 82, the horizontal shaft 82 is lengthened and extended, and the horizontal shaft extends from the central axis of the tail 2 of the hydrodynamic model to be used for connecting and fixing the five-hole pitot rake. The five-hole pitot rake is part of a measuring wake instrument. The purpose of the diverter base 9 is to adjust the height of the diverter 8 to ensure that the horizontal axis 82 is located on the central axis of the hydrodynamic model hull 1 and the hydrodynamic model tail 2.
As shown in fig. 9, the three forms of the hatch cover of the present embodiment have a square or rectangular top view.
The first hatch 51 has a hatch opening 511 for passing through the extension axis of the vertical shaft 81, and the first hatch 51 is located directly above the corner device 8.
The second hatch cover 52 is divided into two symmetrical left and right blocks, a hatch cover opening 521 for passing a sword is arranged in the middle of the two blocks after the two blocks are combined, and the second hatch cover 52 is positioned right above the sword base mounting butt plate 64.
The third hatch cover 53 is a hatch cover without any opening, and the ballast of the hydrodynamic model hull 1 can be adjusted by the third hatch cover 53 so that the center of gravity of the hydrodynamic model is located between the 2 rapier mounting abutment plates 64. The hatch covers in three forms are in natural transition with the shape of the hydrodynamic model boat body 1, play a role in shape retention, and are part of the shape of the hydrodynamic model boat body 1.
As shown in fig. 10, 11 and 12, the three replaceable hydrodynamic model tails of the present embodiment are the hydrodynamic model tail of the rudder 31 and the conduit 4, the hydrodynamic model tail of the rudder 31, and the hydrodynamic model tail of the rudder 32. The tail parts of the three replaceable hydrodynamic models are provided with stern shaft holes 21 at the central axis of the stern part, through which the extension shafts of the horizontal shafts 82 can pass.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.

Claims (10)

1. A hydrodynamic model for an underwater vehicle wake test, comprising: a hydrodynamic model boat body (1) and a hydrodynamic model tail (2);
the hydrodynamic model boat body (1) comprises: the ship comprises a ship body shell (11) and a steel skeleton (6), wherein the steel skeleton (6) is arranged inside the ship body shell (11);
2 sword base mounting butt plates (64) are arranged on the upper surface of the steel skeleton (6), an inner ring (65) is arranged on the end face of the tail, and a corner device (8) is arranged in the tail;
the double sword passes through the hull shell (11) and is connected with 2 sword seat mounting butt plates (64);
an outer ring (7) is embedded in the tail part (2) of the hydrodynamic model, and the outer ring (7) is sleeved on the inner ring (65) and connected through screws;
the corner device (8) comprises: a vertical axis (81) and a horizontal axis (82);
the vertical shaft (81) is connected with a motor and used for converting angular movement into horizontal movement of the horizontal shaft (82), and an extension section of the horizontal shaft (82) extends out of the central axis of the tail part (2) of the hydrodynamic model.
2. Hydrodynamic model of an underwater vehicle wake test according to claim 1, characterized in that said steel skeleton (6) further comprises: 4 annular plates (61), 4 angle irons (62) and 2 square annular plates (63);
two ends of the 4 angle irons (62) are connected with 2 square annular plates (63) to form a rectangular frame;
two of the 4 annular plates (61) are respectively sleeved outside the square annular plates (63), and the remaining two annular plates are sleeved outside the 4 angle irons (62);
the 2 sword base mounting butt plates (64) are arranged on the upper surface of the rectangular frame, and the center distance between the 2 sword base mounting butt plates (64) is the distance between the centers of double swords;
the outer contour of the annular plate (61) is mutually attached to the inner wall of the hull shell (11), four 90-degree angle openings (612) are formed in the inner contour of the annular plate (61), and the angle openings (612) are mutually welded with 4 angle irons (62);
the inner ring (65) is welded to the end face of the annular plate (61) close to the tail part (2) of the hydrodynamic model, and the inner side of the inner ring (65) is welded;
the inner wall of the outer ring (7) is in clearance fit with the outer wall of the inner ring (65), the inner ring (65) is uniformly provided with 8 threaded holes along the periphery, the outer ring (7) is uniformly provided with 8 through holes along the periphery, and the two through holes are connected by flat head screws.
3. Hydrodynamic model of an underwater vehicle wake test according to claim 2, characterized in that the annular plate (61) is provided with lightening holes (611);
the sword seat installation butt plate (64) is a square iron plate with the thickness of 10mm, and is provided with two threaded holes (641), and a screw penetrates through the threaded holes (641) to connect the double sword and the sword seat installation butt plate (64).
4. Hydrodynamic model of an underwater vehicle wake test according to claim 1, characterized in that five hatch covers (5) are arranged above the hull casing (11), the five hatch covers (5) comprising one first hatch cover (51), two second hatch covers (52) and three third hatch covers (53);
the top projection of the five hatch covers (5) is square or rectangular;
the first hatch cover (51) is arranged right above the corner device (8) and is provided with a hatch cover hole (511) for passing through the extension shaft of the vertical shaft (81);
the two second hatch covers (52) are respectively positioned right above the two sword base mounting butt plates (64), each second hatch cover (52) is divided into two symmetrical left and right blocks, and a hatch cover opening (521) for a sword to pass through is formed in the middle of the two second hatch covers after the two second hatch covers are combined;
the third hatch cover (53) is not opened and is used for adjusting the ballast of the hydrodynamic model boat body (1) so that the gravity center of the hydrodynamic model is positioned between the 2 sword base mounting butt plates (64).
5. Hydrodynamic model of an underwater vehicle wake test according to claim 1, characterized in that the hull shell (11) is an equal thickness shell made of glass fibre reinforced plastic and has a thickness of 5-10 mm.
6. Hydrodynamic model of an underwater vehicle wake test according to claim 1, characterized in that there is a 20mm diameter overflow hole below.
7. Hydrodynamic model for an underwater vehicle wake test according to claim 1, characterized in that the adjustment diverter (8) is fixed at the tail of the steel skeleton (6) by means of a diverter base (9), with the height of the diverter (8) such that the horizontal axis (82) is located on the central axis of the hydrodynamic model hull (1) and the hydrodynamic model tail (2).
8. Hydrodynamic model of an underwater vehicle wake test according to claim 1, characterized in that the hydrodynamic model tail (2) comprises: a stern rudder (3);
the stern rudder (3) is a cross rudder (31) or an X-shaped rudder (32).
9. Hydrodynamic model of an underwater vehicle wake test according to claim 8, characterized in that the hydrodynamic model tail (2) further comprises, when the rudder (3) is a rudder cross (31): a conduit (4) of the propeller.
10. Hydrodynamic model of an underwater vehicle wake test according to claim 8, characterized in that a stern shaft hole (21) is provided at the central axis of the stern rudder (3) for the passage of the extension shaft of the horizontal shaft (82).
CN202311867381.9A 2023-12-29 2023-12-29 Hydrodynamic model for wake test of underwater vehicle Pending CN117682022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311867381.9A CN117682022A (en) 2023-12-29 2023-12-29 Hydrodynamic model for wake test of underwater vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311867381.9A CN117682022A (en) 2023-12-29 2023-12-29 Hydrodynamic model for wake test of underwater vehicle

Publications (1)

Publication Number Publication Date
CN117682022A true CN117682022A (en) 2024-03-12

Family

ID=90132049

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311867381.9A Pending CN117682022A (en) 2023-12-29 2023-12-29 Hydrodynamic model for wake test of underwater vehicle

Country Status (1)

Country Link
CN (1) CN117682022A (en)

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