Rolling moment measurement device and method for underwater high speed vehicles

Abstract

The application provides a roll torque measuring device and method for a high-speed underwater vehicle, comprising a head slip ring fixing structure, a bearing cabin section structure and a pool cover plate, the head slip ring fixing structure is arranged on the head of a measured prototype, the bearing cabin section structure is arranged between adjacent cabin sections of the measured prototype, and the head slip ring fixing structure and the bearing cabin section structure are fixedly connected with the pool cover plate; the head slip ring fixing structure comprises an optical slip ring, a rotor of the optical slip ring is fixedly connected with the measured prototype, and a stator of the optical slip ring is fixedly connected with the pool cover plate; the bearing cabin section structure is internally provided with a bearing, an inner ring of the bearing is sleeved on the outside of the measured prototype, and an outer ring of the bearing is fixedly connected with the bearing cabin section structure body. The application can simulate the high-speed self-propelled motion process of the vehicle in water, simulate the roll motion response in the high-speed navigation process at a low cost and risk, and accurately measure the roll torque generated by the vehicle body and different differential rudder angles at different navigation speeds.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water power measurement, in particular to a roll moment measurement device and method for underwater high-speed vehicles. BACKGROUND

[0002] Underwater high-speed weapon equipment has a wide range of applications in the military field, and the roll stability control of underwater high-speed vehicles during navigation plays a crucial role in its use efficiency. In this process, water dynamic modeling of high-speed vehicles is one of the important links.

[0003] The water dynamic parameter acquisition of the roll freedom degree of underwater high-speed vehicles mainly includes fluid calculation method and experimental measurement method. The fluid calculation method is used for early design demonstration, and the water pool test is needed for strict measurement of the prototype in the later stage. There are various ways of water pool test, such as rapidity towing test, wind tunnel model test, propeller open water test, etc. Although these methods have formed a standard process in domestic water pool laboratories, the experimental equipment and instruments still have higher requirements, and the test categories are more and the process is more complex, so it is difficult to measure multiple water dynamic parameters through a single test, and the restoration degree of real self-propelled working conditions is uneven. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the present application is to provide a roll moment measurement device and method for underwater high-speed vehicles.

[0005] The roll moment measurement device for underwater high-speed vehicles provided by the present application comprises a head slip ring fixing structure, a bearing cabin section structure and a water pool cover plate, the head slip ring fixing structure is arranged at the head of the measured prototype, the bearing cabin section structure is arranged between adjacent cabins of the measured prototype, and the head slip ring fixing structure and the bearing cabin section structure are both fixedly connected with the water pool cover plate.

[0006] The head slip ring fixing structure comprises an optical slip ring and a head cabin section, the head cabin section is installed at the head of the measured prototype, the rotor of the optical slip ring is installed in the head cabin section and is fixedly connected with the measured prototype, and the stator of the optical slip ring is fixedly connected with the water pool cover plate.

[0007] The bearing cabin section structure is internally provided with a bearing, the inner ring of the bearing is sleeved on the outside of the measured prototype, and the outer ring of the bearing is fixedly connected with the bearing cabin section structure body.

[0008] Preferably, the head slip ring fixing structure comprises an optical slip ring, a head cabin section, an optical water-tight cable cover and an optical slip ring cover.

[0009] The stator of the photoelectric slip ring is fixedly installed inside a photoelectric slip ring cover, the top of the photoelectric slip ring cover is fixedly connected with the bottom of the photoelectric water-tight cable cover, and the top of the photoelectric water-tight cable cover is fixedly connected with the pool cover plate.

[0010] The rotor of the photoelectric slip ring is connected with the cable in the measured sample cabin through the out-cable joint in the photoelectric slip ring cabin, the stator of the photoelectric slip ring is provided with an out-cable position outside the photoelectric slip ring cabin, used for leading out the photoelectric water-tight cable, and the photoelectric water-tight cable is led out to the outside through the cable passing hole in the middle of the photoelectric water-tight cable cover.

[0011] Preferably, the inner side of the head cabin section is provided with a photoelectric slip ring docking structure for being fixedly connected with the rotor of the photoelectric slip ring, and the photoelectric slip ring docking structure and the rotor of the photoelectric slip ring are sealed through a sealing ring.

[0012] Preferably, the connection position of the pool cover plate and the top of the photoelectric water-tight cable cover is provided with a photoelectric water-tight cable out-cable hole, and the photoelectric water-tight cable is led out through the photoelectric water-tight cable out-cable hole.

[0013] The top of the photoelectric water-tight cable cover and the pool cover plate are connected through bolts, and the bolts are water-tight through the bolt water-tight cover and the sealing ring.

[0014] Preferably, the bearing cabin section structure includes a first bearing outer diameter clamp, a second bearing outer diameter clamp and a bearing.

[0015] The first bearing outer diameter clamp and the second bearing outer diameter clamp are respectively sleeved between different cabin sections of the measured sample, and the first bearing outer diameter clamp and the second bearing outer diameter clamp are respectively connected with the pool cover plate through the front support and the rear support.

[0016] The top of the pool cover plate is provided with a first force measuring instrument and a second force measuring instrument, the first force measuring instrument is connected with the first bearing cabin section structure, the second force measuring instrument is connected with the second bearing cabin section structure, and the first force measuring instrument and the second force measuring instrument are used for measuring the roll moment of the corresponding bearing cabin section structure.

[0017] Preferably, the bearing cabin section structure includes a first bearing outer diameter clamp, a second bearing outer diameter clamp and a bearing.

[0018] The first bearing outer diameter clamp, the second bearing outer diameter clamp and the bearing are all installed between the first bearing matching cabin section and the second bearing matching cabin section of the measured sample.

[0019] The first bearing matching cabin section and the second bearing matching cabin section are fixedly connected, the inner ring of the bearing is fixedly clamped between the first bearing matching cabin section and the second bearing matching cabin section, and the outer ring of the bearing is fixedly clamped between the first bearing outer diameter clamp and the second bearing outer diameter clamp.

[0020] The first bearing outer diameter clamp, the second bearing outer diameter clamp and the support body are fixedly connected, and gaps are provided between the first bearing outer diameter clamp and the first bearing matching cabin section and between the second bearing outer diameter clamp and the second bearing matching cabin section.

[0021] Preferably, a bearing matching cabin sealing surface is arranged between the first bearing matching cabin section and the second bearing matching cabin section, and a sealing ring is arranged in the bearing matching cabin sealing surface.

[0022] The connecting portions of the first bearing matching cabin section and the second bearing matching cabin section are provided with bearing clamping portions protruding in the radial direction, and the bearing inner ring is clamped between the bearing clamping portions of the first bearing matching cabin section and the second bearing matching cabin section.

[0023] Preferably, an axial bearing matching cabin bolt hole is arranged on the connecting surface between the first bearing matching cabin section and the second bearing matching cabin section.

[0024] The first bearing matching cabin section and the second bearing matching cabin section are fixedly connected in a manner that the bearing matching cabin bolt holes are matched by bolts.

[0025] The top of the second bearing outer diameter clamp is provided with a bearing outer diameter clamp matching support bolt hole, and the bottom of the support body is fixedly connected with the bearing outer diameter clamp matching support bolt hole in a manner that the bearing outer diameter clamp matching support bolt hole is matched by a bolt.

[0026] The top of the support body is provided with a support and cover plate connecting threaded hole, and the pool cover plate is fixedly connected with the support and cover plate connecting threaded hole in a manner that the support and cover plate connecting threaded hole is matched by a bolt.

[0027] Preferably, a bearing outer diameter clamp limiting block is arranged on the side of the second bearing outer diameter clamp close to the second bearing matching cabin section, and a bearing outer diameter clamp limiting device corresponding to the bearing outer diameter clamp limiting block is arranged on the side of the second bearing matching cabin section close to the second bearing outer diameter clamp.

[0028] The bearing outer diameter clamp limiting block and the bearing outer diameter clamp limiting device are used to constrain the maximum roll angle of the measured prototype.

[0029] The method for measuring the roll torque of the underwater high-speed vehicle provided by the application is used in the roll torque measuring device for the underwater high-speed vehicle, and includes the following steps.

[0030] Step 1: measuring the mass m, the moment of inertia I, the center of gravity position [x, y, z] of the measured prototype. xx g g g ​​​​

[0031] Step 2: Assemble the necessary cabin sections of the measured prototype to the bearing cabin section structure, replace the measured prototype head with the head cabin section, keep the same lines of the two, assemble the optical slip ring to the inside of the head cabin section, complete the connection of the optical slip ring with the power supply and signal cable of the measured prototype;

[0032] Assemble the optical watertight cable cover and the optical slip ring cover to the optical slip ring, assemble the support and the corresponding bearing cabin section structure, and form the measured prototype to be tested;

[0033] Step 3: Assemble the measured prototype to be tested to the pool cover plate, install the dynamometer on the pool cover plate, and assemble the measured prototype to be tested and the pool cover plate to the cavitation water cylinder or the measured area of the circulating water tank as a whole, and complete the test assembly of the whole machine;

[0034] Step 4: According to the operating speed of the vehicle, the pool forms a uniform flow field in the measured area, the measured prototype propulsion system works, and the thrust resistance balance is realized according to the feedback of the dynamometer, so as to simulate the self-propelled working condition at the speed point;

[0035] Step 5: Real-time read the data of the internal attitude measuring device of the measured prototype through the optical slip ring, and obtain the roll angle of the measured prototype Then the roll moment generated by the measured prototype at this speed is

[0036] Step 6: Control the differential rudder angle δ d Due to the fluid action, the measured prototype will produce roll, and the roll angle becomes Then the roll moment generated by the differential rudder angle of the measured prototype at this speed is

[0037] Compared with the prior art, the present application has the following beneficial effects:

[0038] 1. The present application relies on the cavitation water cylinder / circulating water tank to carry out pool test, to simulate the high-speed self-propelled motion process of the vehicle underwater, and can simulate the roll motion response at high speed with less cost and risk in a limited test environment, and can accurately measure the roll moment generated by the vehicle body at different speeds and different differential rudder angles.

[0039] 2. The structure designed in the present application has little effect on the roll motion of the vehicle itself, and can truly restore the roll response of the vehicle under the self-propelled working condition; the design of the optical slip ring can provide external energy and real-time information interaction for the vehicle, improving the overall test efficiency; at the same time, the risk of roll loss of control is considered, and the maximum allowable roll angle is limited.

[0040] 3. The roll torque measuring device for the underwater high-speed vehicle has universality, can be designed according to different measured prototypes and test requirements, and meets various use requirements. BRIEF DESCRIPTION OF DRAWINGS

[0041] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, read in conjunction with the accompanying drawings:

[0042] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0043] Figure 2 It is a schematic diagram of the head slip ring fixing structure in the present application;

[0044] Figure 3 It is a schematic diagram of the head slip ring fixing structure in the present application;

[0045] Figure 4 It is a schematic diagram of the bearing cabin section structure in the present application;

[0046] Figure 5 It is a schematic diagram of the bearing cabin section structure in the present application;

[0047] Figure 6 It is a schematic diagram of the bearing cabin section structure in the present application;

[0048] Figure 7 It is a schematic diagram of the bearing cabin section structure in the present application;

[0049] In the drawings, it is shown that:

[0050] Bolt watertight cover 1 Photoelectric composite cable passing cable waist hole 21

[0051] Photoelectric watertight cable out-of-cable hole 2 Photoelectric slip ring out-of-cable outside 23

[0052] Photoelectric watertight cable cover 3 Photoelectric slip ring rotating surface 25

[0053] Photoelectric slip ring cover 4 Photoelectric slip ring butt joint structure 26

[0054] Photoelectric slip ring 5 Photoelectric slip ring in-cabin out-of-cable joint 27

[0055] Head cabin section 6 Support member and cover plate connecting screw thread hole 29

[0056] First force gauge watertight cover 7 Support member body 30

[0057] First force gauge fixing bolt watertight cover 8 First bearing matching cabin section 31

[0058] First force gauge out-of-cable hole 9 First bearing outer diameter clamp 32

[0059] Front support 10 Second bearing outer diameter clamp 33

[0060] First bearing compartment structure 11 Bearing outer diameter clamp fitting support bolt hole 34

[0061] Second bearing fitting compartment 35 of measured prototype necessary compartment 12

[0062] Rear support 13 Bearing outer ring 36

[0063] Second load cell water-tight cover 14 Bearing inner ring 37

[0064] Second load cell fixing bolt water-tight cover 15 Bearing roller 38

[0065] Second load cell cable outlet hole 16 Bearing fitting compartment sealing surface 39

[0066] Second bearing compartment structure 17 Bearing fitting compartment bolt hole 40

[0067] Bearing outer diameter clamp limiting block 41 of measured prototype propulsion section 18

[0068] Pool cover plate 19 Bearing outer diameter clamp limiting device 42 DETAILED DESCRIPTION

[0069] The application will be described in detail below with specific embodiments. The following embodiments will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the concept of the application. These all belong to the protection scope of the application.

[0070] The application provides a roll moment measurement method and device for underwater high-speed vehicles, wherein the method assembles part of the structure of the tested prototype to the designed roll moment measurement device for underwater high-speed vehicles, and relies on the air bubble water cylinder / circulating water tank to carry out pool test, so as to simulate the high-speed self-propelled movement process of the vehicle under water, and simulate the roll motion response in high-speed navigation with less cost and risk in limited test environment, and accurately measure the roll moment generated by the vehicle body and different differential rudder angles at different navigation speeds.

[0071] According to the roll moment measurement device for underwater high-speed vehicles provided by the application, as shown in Figure 1 The main body includes an optical slip ring 5, a first bearing compartment structure 11, a second bearing compartment structure 17, a head compartment 6, a measured prototype necessary compartment 12, a measured prototype propulsion section 18, and a pool cover plate 19.

[0072] AsFigure 1 As shown, the present application will be necessary for the measured machine cabin section and the structure designed in the present application are assembled into one, through the support structure is assembled to the pool cover plate 19, relying on the cavity water cylinder / circulating water tank to carry out the subsequent experiment. The head cabin section 6 keeps the same with the head line of the measured machine, realizes the maximum reduction of the real model navigation working condition, the head cabin section 6 is connected with the optical slip ring 5, the optical slip ring cover 4 restricts the rotation of the stator of the optical slip ring 5, the optical slip ring cover 4 is connected with the optical water-tight cable cover 3, the optical water-tight cable cover 3 is connected with the pool cover plate 19, the connecting bolt is water-tight by the bolt water-tight cover 1 through the O-ring, the pool cover plate 19 opens the optical water-tight cable outlet hole 2. The first bearing cabin section structure 11 and the second bearing cabin section structure 17 are connected with the measured machine, and can be placed in any measured machine cabin section according to the test convenience, safety and other conditions, the first bearing cabin section structure 11 and the second bearing cabin section structure 17 ensure the measured machine to rotate around the longitudinal central axis without constraint, the first bearing cabin section structure 11 and the second bearing cabin section structure 17 are connected with the front support 10 and the rear support 13 respectively, the support is connected with the pool cover plate 19, the bearing cabin section structure restricts the movement of the measured machine in the longitudinal, transverse, vertical, pitch and yaw directions, and has no constraint on the roll movement of the measured machine. The first dynamometer water-tight cover 7, the first dynamometer fixed bolt water-tight cover 8 and the first dynamometer outlet hole 9 form the first dynamometer assembly, which is installed at the first bearing cabin section structure 11, the second dynamometer water-tight cover 14, the second dynamometer fixed bolt water-tight cover 15 and the second dynamometer outlet hole 16 form the second dynamometer assembly, which is installed at the second bearing cabin section structure 17, and the thrust and resistance balance is realized according to the feedback of the dynamometer.

[0073] As shown in Figure 1 , 3 , the head cabin section 6 has a head cabin docking smooth ring structure 26, so that the measured machine is fixed with the rotor of the optical slip ring 5, the connection is water-tight by O-ring, the left side of the optical slip ring 5 is the stator, and the right side is the rotor, the stator and the rotor can rotate freely around the optical slip ring rotation surface 25. The optical slip ring cabin outlet connector 27 is connected with the power cable and signal cable in the cabin of the measured machine, realizing the external real-time power supply and data interaction to the measured machine. The optical water-tight cable is connected to the outside of the pool from the optical slip ring cabin outside outlet 23, passes through the optical composite cable through the cable waist hole 21, and is connected to the outside of the pool from the optical water-tight cable pool cover plate outlet hole 2, and is connected with the shore equipment.

[0074] As shown in Figure 1 , 6As shown in FIG. 7, the first bearing cabin section structure 11 and the second bearing cabin section structure 17 are composed of the first bearing matching cabin section 31, the second bearing matching cabin section 35, the first bearing outer diameter clamp 32, the second bearing outer diameter clamp 33 and the double-row tapered roller bearing. The double-row tapered roller bearing includes, from inside to outside, the bearing inner ring 37, the bearing roller 38 and the bearing outer ring 36. The double-row tapered roller bearing matches the first bearing matching cabin section 31 and the second bearing matching cabin section 35 to clamp and lock the tapered roller bearing inner ring 37, so that the measured prototype can be fixedly connected with the tapered roller bearing inner ring 37. The bearing matching cabin section 31 and the bearing matching cabin section 35 are water-tightly sealed through the O-ring. The first bearing outer diameter clamp 32 and the second bearing outer diameter clamp 33 clamp and lock the tapered roller bearing outer ring 36. The second bearing outer diameter clamp 33 is fixedly connected with the support body 30 through the bolt, so that the tapered roller bearing outer ring 34, the bearing outer diameter clamp and the support body are fixedly connected and kept stationary. Thus, the bearing section can rotate around the longitudinal central axis together with the double-row tapered roller bearing inner ring without any constraint. The double-row tapered roller bearing can bear bidirectional radial force and bidirectional axial force, thereby ensuring the safety of the test. Considering that there is a large horizontal roll moment in the test process and the aircraft may lose control in the rotation around the central axis, the bearing outer diameter clamp limiting block 41 and the bearing outer diameter clamp limiting device 42 are designed at the corresponding positions of the bearing outer diameter clamp bolt hole 34 and the second bearing matching cabin section 35. The limiting device can constrain the maximum horizontal roll angle and buffer the impact.

[0075] According to the application, the horizontal roll moment measurement method for the underwater high-speed vehicle comprises the following steps.

[0076] (1) The measured prototype should include a propulsion section, an attitude measurement device and other necessary equipment, and has the functions of controlling the rotation speed of the propulsion system and the rudder angle of the control surface. Before the test, the mass, the moment of inertia and the center of gravity of the measured cabin section should be accurately measured and recorded as m, I xx , [x g , y g , z g ];

[0077] (2) The necessary cabin section 12 of the measured prototype is assembled to the bearing cabin section structure.

[0078] (3) The head of the measured prototype is replaced by the pool test head cabin section 6, and the lines of the two are kept the same.

[0079] (4) The photoelectric slip ring 5 is assembled to the pool test head cabin section 6, and the connection of the photoelectric slip ring 5 with the power supply and signal cable of the measured prototype is completed.

[0080] (5) Assemble the optical and watertight cable cover 3, the optical and slip ring cover 4, and the front and rear supporting members with the corresponding structures respectively to complete the assembly of the pool test measured prototype;

[0081] (6) Assemble the pool test measured prototype to the pool cover plate 19 of the cavitation water cylinder / circulating water tank, and install the front and rear force gauges at the same time;

[0082] (7) Assemble the pool test measured prototype to the pool cover plate 19 of the cavitation water cylinder / circulating water tank as a whole to complete the assembly of the test machine;

[0083] (8) According to the operating speed of the vehicle, the pool forms a uniform flow field in the measured area, the propulsion system of the measured prototype works, and the thrust resistance balance is realized according to the feedback of the force measuring device, so as to simulate the self-propelled working condition at the speed point;

[0084] (9) Real-time read the data of the internal attitude measuring device of the prototype through the optical and slip ring 5 to obtain the roll angle of the measured prototype Therefore, at this speed, the roll moment generated by the imbalance of the vehicle during high-speed navigation is

[0085]

[0086] (10) Control the differential rudder angle δ d Due to the fluid action, the measured prototype will produce roll, and the roll angle becomes Therefore, at this speed, the roll moment generated by the differential rudder angle of the vehicle is

[0087] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0088] The specific embodiments of the present application have been described above. It should be understood that the present application is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A device for measuring the roll torque of a high-speed underwater vehicle, characterized in that, It includes a head slip ring fixing structure, a bearing compartment structure and a water tank cover (19). The head slip ring fixing structure is set at the head of the test sample, and the bearing compartment structure is set between adjacent compartments of the test sample. The head slip ring fixing structure and the bearing compartment structure are both fixedly connected to the water tank cover (19). The head slip ring fixing structure includes a photoelectric slip ring (5) and a head compartment (6). The head compartment (6) is installed in the head of the test sample. The rotor of the photoelectric slip ring (5) is installed in the head compartment (6) and fixedly connected to the test sample. The stator of the photoelectric slip ring (5) is fixedly connected to the water tank cover plate (19). The bearing compartment structure has a bearing installed inside. The inner ring of the bearing is fitted onto the outside of the test sample, and the outer ring of the bearing is fixedly connected to the bearing compartment structure body.

2. The roll moment measuring device for underwater high-speed vehicles according to claim 1, characterized in that, The head slip ring fixing structure includes a photoelectric slip ring (5), a head compartment (6), a photoelectric watertight cable cover (3), and a photoelectric slip ring cover (4). The stator of the photoelectric slip ring (5) is fixedly installed inside the photoelectric slip ring cover (4). The top of the photoelectric slip ring cover (4) is fixedly connected to the bottom of the photoelectric watertight cable cover (3). The top of the photoelectric watertight cable cover (3) is fixedly connected to the pool cover (19). The rotor of the photoelectric slip ring (5) is connected to the cable inside the test sample chamber through the cable outlet connector (27) inside the photoelectric slip ring chamber. The stator of the photoelectric slip ring (5) is provided with a cable outlet (23) outside the photoelectric slip ring chamber for leading out the photoelectric watertight cable. The photoelectric watertight cable is led out to the outside through the cable hole in the middle of the photoelectric watertight cable cover (3).

3. The roll moment measuring device for underwater high-speed vehicles according to claim 2, characterized in that, The inner side of the head section (6) is provided with a photoelectric slip ring docking structure (26) for fixing to the rotor of the photoelectric slip ring (5). The photoelectric slip ring docking structure (26) and the rotor of the photoelectric slip ring (5) are sealed by a sealing ring.

4. The roll moment measuring device for a high-speed underwater vehicle according to claim 2, characterized in that, The connection between the water tank cover (19) and the top of the photoelectric watertight cable cover (3) is provided with a photoelectric watertight cable outlet hole (2), through which the photoelectric watertight cable is led out; The top of the photoelectric watertight cable cover (3) is connected to the water tank cover (19) by bolts, and the bolts at the connection are watertight with the sealing ring through the bolt watertight cover (1).

5. The roll moment measuring device for underwater high-speed vehicles according to claim 1, characterized in that, The bearing compartment structure consists of two parts, namely the first bearing compartment structure (11) and the second bearing compartment structure (17). The first bearing compartment structure (11) and the second bearing compartment structure (17) are respectively fitted between different compartments of the test sample. The first bearing compartment structure (11) and the second bearing compartment structure (17) are respectively connected to the pool cover plate (19) through the front support member (10) and the rear support member (13). The top of the pool cover (19) is equipped with a first force gauge and a second force gauge. The first force gauge is connected to the first bearing compartment structure (11), and the second force gauge is connected to the second bearing compartment structure (17). Both the first force gauge and the second force gauge are used to measure the rolling torque of the corresponding bearing compartment structure.

6. The roll moment measuring device for a high-speed underwater vehicle according to claim 1, characterized in that, The bearing compartment structure includes a first bearing outer diameter clamp (32), a second bearing outer diameter clamp (33), and a bearing. The bearing compartment structure is fixedly connected to the pool cover plate (19) through a support body (30). The first bearing outer diameter fixture (32), the second bearing outer diameter fixture (33), and the bearing are all installed between the first bearing mating compartment (31) and the second bearing mating compartment (35) of the test sample. The first bearing mating compartment (31) and the second bearing mating compartment (35) are fixedly connected. The bearing includes an inner bearing ring (37) and an outer bearing ring (36). The inner bearing ring (37) is fixedly clamped between the first bearing mating compartment (31) and the second bearing mating compartment (35). The outer bearing ring (36) is fixedly clamped between the first bearing outer diameter clamp (32) and the second bearing outer diameter clamp (33). The first bearing outer diameter clamp (32), the second bearing outer diameter clamp (33), and the support body (30) are fixedly connected. The first bearing outer diameter clamp (32) and the first bearing mating compartment (31) and the second bearing outer diameter clamp (33) and the second bearing mating compartment (35) are all provided with gaps.

7. The roll moment measuring device for a high-speed underwater vehicle according to claim 6, characterized in that, The first bearing mating compartment (31) and the second bearing mating compartment (35) have a bearing mating compartment sealing surface (39), and a sealing ring is provided in the bearing mating compartment sealing surface (39); The connection between the first bearing mating section (31) and the second bearing mating section (35) is provided with a bearing clamping part that protrudes radially, and the bearing inner ring (37) is clamped between the bearing clamping parts of the first bearing mating section (31) and the second bearing mating section (35).

8. The roll moment measuring device for a high-speed underwater vehicle according to claim 6, characterized in that, The connecting surface between the first bearing mating compartment (31) and the second bearing mating compartment (35) is provided with bearing mating compartment bolt holes (40) arranged along the axial direction. The first bearing mating compartment (31) and the second bearing mating compartment (35) are fixedly connected by bolts engaging with the bolt holes (40) of the bearing mating compartment; The top of the second bearing outer diameter clamp (33) is provided with a bearing outer diameter clamp matching support bolt hole (34), and is fixedly connected to the bottom of the support body (30) by means of bolts matching the bearing outer diameter clamp matching support bolt hole (34); The top of the support body (30) is provided with a threaded hole (29) for connecting the support and the cover plate, and is fixedly connected to the pool cover plate (19) by means of bolts and threaded holes (29).

9. The roll moment measuring device for a high-speed underwater vehicle according to claim 6, characterized in that, The second bearing outer diameter clamp (33) is provided with a bearing outer diameter clamp limiting block (41) on the side near the second bearing mating compartment (35), and the second bearing mating compartment (35) is provided with a bearing outer diameter clamp limiting device (42) corresponding to the bearing outer diameter clamp limiting block (41) on the side near the second bearing outer diameter clamp (33). The bearing outer diameter clamping limit block (41) and the bearing outer diameter clamping limit device (42) are used to constrain the maximum roll angle of the test sample.

10. A method for measuring the roll moment of a high-speed underwater vehicle, characterized in that, The roll moment measuring device for underwater high-speed vehicles according to any one of claims 1-9 comprises the following steps: Step 1: Measure the mass of the sample under test. Moment of inertia Center of gravity position ; Step 2: Assemble the necessary sections of the test sample onto the bearing section structure, replace the head of the test sample with the head section (6), keep the two profiles the same, assemble the photoelectric slip ring (5) into the head section (6), and complete the connection between the photoelectric slip ring (5) and the power supply and signal cables of the test sample; The photoelectric watertight cable cover (3) and the photoelectric slip ring cover (4) are assembled onto the photoelectric slip ring (5), and the support is assembled with the corresponding bearing compartment structure to form the test prototype. Step 3: Assemble the test sample to be tested onto the water tank cover (19), and at the same time install the force measuring instrument on the water tank cover (19). Assemble the test sample and the water tank cover (19) together into the test area of ​​the cavitation water cylinder or circulating water tank to complete the assembly of the test machine. Step 4: Based on the operating speed of the aircraft, a uniform flow field is formed in the water tank in the test area, the propulsion system of the test prototype works, and the thrust-resistance balance is achieved according to the feedback of the force gauge, thereby simulating the self-propulsion condition at that speed point; Step 5: Read the data from the internal attitude measurement device of the test sample in real time through the photoelectric slip ring (5) to obtain the roll angle of the test sample. At this speed, the roll moment generated by the tested prototype is: ; Step 6: Control the differential rudder angle of the test prototype Due to the fluid action, the tested sample will experience tumble, and its tumble angle will become... At this speed, the roll moment generated by the differential rudder angle of the tested prototype is: .

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