CN117104439A - Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state - Google Patents

Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state Download PDF

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Publication number
CN117104439A
CN117104439A CN202310986644.1A CN202310986644A CN117104439A CN 117104439 A CN117104439 A CN 117104439A CN 202310986644 A CN202310986644 A CN 202310986644A CN 117104439 A CN117104439 A CN 117104439A
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China
Prior art keywords
ice
self
test
flow field
state
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CN202310986644.1A
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Inventor
徐佩
陈吉祥
李龙辉
陈保霖
郭迎春
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Jiangsu Ocean University
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Jiangsu Ocean University
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Priority to CN202310986644.1A priority Critical patent/CN117104439A/en
Publication of CN117104439A publication Critical patent/CN117104439A/en
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    • 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
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • 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)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The invention discloses a device for testing a load and a flow field during a self-propulsion state of a submersible vehicle in a near-ice navigation state, which comprises a test pool, a simulated ice layer material, a simulated ice layer laying and recycling device, a simulated submersible vehicle self-propulsion state device and a test device; the test pool comprises a trailer and a track; the simulated ice layer material is composed of polypropylene plates; the simulated ice layer laying and recycling device consists of an operating rod, a rotating shaft, a bearing, a first bolt, a second bolt, a hollow steel plate, an L-shaped steel plate, a telescopic steel rod, a pressing fixing device, a spring and a clamp; the invention can meet the test of the load and the flow field of the submersible vehicle in the self-propulsion state of the near-ice navigation state, solves the difficult problems of the load and the flow field test of the submersible vehicle in the self-propulsion state of the near-ice navigation state of the polar region, verifies and perfects the numerical model of the hydrodynamic performance of the submersible vehicle, and provides references for the maneuverability, the safety and the stability of the navigation of the polar region underwater vehicle in the ice region, and the design of the propeller and the overall design of the polar region underwater vehicle.

Description

Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state
Technical Field
The invention relates to the technical field of ship and ocean engineering tests in ice areas, in particular to a device for testing load and flow field of a submersible vehicle in a self-propulsion state under a near-ice-surface navigation state.
Background
The twenty-first century is the century of ocean, and along with the aggravation of greenhouse effect, the polar ice and snow melt and accelerate, and the large-scale ice and snow melts and brings a series of polar ecological environment problems, and simultaneously brings opportunities and challenges for human exploration polar regions. As a new region of Xinjiang that affects sustainable development of the world and human survival, the two-pole region becomes a new strategic high point between the major countries around the competition for interests and impact. The deep sea and the polar region are used as new deployment for implementing the ocean strong national strategy comprehensively, and have long-term benefit relation with the development and the safety of the country. The polar region diving device is one of important technical means and equipment for supporting polar region ocean exploration, resource development, ocean science research and ocean engineering operation, can assist the formation of polar region deep sea exploration and operation capability in China, and is an important example for maintaining the national polar region rights and implementing the national polar region strategy.
The polar scientific investigation has special requirements on comprehensive performances such as communication, navigation, energy supply, hydrodynamic characteristics and the like of the submersible due to severe environments such as high latitude, extremely low temperature, large-area sea ice coverage and the like. The polar submarine often faces a large-scale ice covering during operation, and needs to be sailed under near ice for a long time. Considering that the existence of the ice layer further aggravates the unevenness of the flow field around the submersible, and seriously influences the sailing stability and the structural safety of the submersible. It is necessary to study the variation mechanism of the propeller hydrodynamic load, ice load and bypass field of the polar submarine when sailing in continuous ice layer and floating ice area. It is necessary to build a load and flow field testing device for the submersible vehicle in a self-propulsion state under a near-ice-surface navigation state. However, at present, when a resistance test and a self-propulsion test of the submersible are carried out in a water pool, a dragging device of the submersible mainly adopts a supporting rod in the vertical direction to drag, and when a load and a flow field test of the submersible in a self-propulsion state of the submersible are tested in a near-ice navigation state, the existing dragging device cannot be adopted due to the obstruction of a simulated ice layer. Meanwhile, in order to accurately test the coupling effect of the flow fields between the ice layer and the boat body and between the ice layer and the propeller, the interference of the support rod on the three flow fields is also a factor to be considered; therefore, the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state in the near-ice navigation state is provided.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a device for testing the load and the flow field of a submersible vehicle in a self-propulsion state in a near-ice navigation state so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state in the near-ice-surface navigation state comprises a test pool, a simulated ice layer material, a simulated ice layer laying and recycling device, a simulated submersible vehicle self-propulsion state device and a test testing device, wherein the test pool comprises a trailer and a track;
the simulated ice layer material is composed of a polypropylene plate;
the simulated ice layer laying and recycling device consists of a hollow steel plate, a first bolt, an L-shaped steel plate, a second bolt, a bearing, a rotating shaft, a telescopic steel rod, a pressing and fixing device, a semicircular hole protruding body, a hole connecting bearing, a clamp, a spring, an operating rod and a traction rope;
the simulated ice layer laying and recycling device is fixed on the side wall of the test pool through a first bolt;
the device for simulating the self-propulsion state of the submersible vehicle consists of a submersible vehicle model, a propeller model, a navigabor, a supporting rod, a telescopic shaft, a motor, a shafting and a speed regulating box;
the test device consists of a vehicle-mounted PIV measuring system, a self-propelled meter and a six-component waterproof force-measuring balance.
As a preferable technical scheme of the invention, the hollow steel plate is fixed on the side wall of the test pool by a first bolt, and the L-shaped steel plate is connected with the hollow steel plate by a second bolt.
As a preferable technical scheme of the invention, the bearing is fixed in a middle groove of the L-shaped steel plate, the bearing is provided with a rotating shaft, the middle part of the rotating shaft is provided with a telescopic steel rod, the upper end of the rotating shaft is fixed with a control rod, the telescopic steel rod is provided with a circular hole groove, the front end of the telescopic steel rod is welded with a semicircular protruding attachment with a hole, and the middle part of the semicircular protruding attachment with a hole is connected with a hole connecting bearing.
As a preferable technical scheme of the invention, the clamp is connected with the telescopic steel rod through the hole connecting bearing, the rear end of the clamp is connected with the spring, the protruding hole attachment is welded above the clamp, and the traction rope is connected with the protruding hole attachment above the clamp.
As a preferable technical scheme of the invention, the propeller model is arranged at the rear end of the submersible model, the submersible model is connected with the seaworthiness instrument through the supporting rod, the supporting rod is internally provided with the telescopic shaft, the six-component waterproof force balance is fixed at the front end of the joint of the submersible model and the supporting rod, and the seaworthiness instrument is connected with the fixed die carrier on the trailer side bridge.
As a preferable technical scheme of the invention, holes are drilled on the edges of the polypropylene plates, a plurality of polypropylene plates are arranged, and the polypropylene plates are mutually connected through U-shaped connecting plates and fixed edge holes.
As a preferable technical scheme of the invention, the PIV vehicle-mounted measuring system, the autopilot and the six-component waterproof force measuring average are connected with the data acquisition system.
The beneficial effects of the invention are as follows: according to the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state under the near-ice-surface navigation state, the density of the polypropylene plate and the friction coefficient between the submersible vehicle models are similar to the material properties of ice of the frozen models, so that the polypropylene plate is paved to replace the traditional frozen ice models to simulate the continuous ice layer test environment; the polypropylene plate is convenient to store, the material has certain corrosion resistance, no special storage environment is needed, the polypropylene plate can be repeatedly utilized, the material is saved, the wall effect of the continuous ice layer can be completely displayed, and the timeliness and convenience of the test are greatly improved. The whole ice layer is fixedly connected by a plurality of polypropylene plates through the U-shaped connecting plates, and meanwhile, the clamp is loosened for preventing the influence of a flow field during a self-navigation experiment, so that the stability of the simulated ice layer material is influenced, and the simulation ice layer material is dragged and fixed by being matched with a nylon rope. The whole simulated ice layer material has the advantages of convenience in installation and disassembly, good stability, high operation efficiency and the like.
According to the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state under the near-ice navigation state, the simulated ice layer laying and recycling device is fixed on the side wall of the test pool through the vacuum chuck under the first bolt, so that the test pool is not damaged, the whole device is convenient to disassemble and assemble, and the device can be disassembled and stored after the test is finished; the L-shaped steel plate is connected with the hollow steel plate through a second bolt, and the upper and lower positions of the L-shaped steel plate are adjusted through the second bolt and sliding grooves on two sides of the hollow steel plate, so that the upper and lower positions of the rotating shaft are adjusted, and the effect of controlling the upper and lower positions of the clamp is achieved; the bearing is fixed in the middle groove of the L-shaped steel plate and connected with the rotating shaft, so that the flexibility of the rotating shaft is improved; the telescopic steel rod is fixed in the middle of the rotating shaft, and the length of the telescopic steel rod can be adjusted according to the requirement; the length of the telescopic steel rod can be better fixed by pressing the fixing device; the clamp is connected with the telescopic steel rod through the hole connecting bearing at the front end of the telescopic steel rod, the rear end of the clamp is connected with the spring, the clamp is in a closed state under the condition of not receiving other external forces through the action of the spring, and the contact surface of the clamp is clamped into a saw-tooth shape, so that the simulated ice layer material can be better fixed; the opening of the clamp is adjusted through a traction rope connected with the protruding hole at the upper end of the clamp, so that polypropylene plates with different thicknesses can be clamped conveniently; the control rod is fixed at the upper end of the rotating shaft, and the clamp can be controlled to rotate freely by controlling the rotating shaft, so that the flexibility and operability of the simulated ice layer paving and recycling device are improved.
According to the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state under the near-ice-surface navigation state, the size and the quality of the submersible vehicle model and the propeller model are converted according to the test submersible vehicle and the propeller; the L-shaped side wall type airworthiness instrument is adopted, and the modularized adjustment can be carried out according to the navigation working condition, so that the interference of the airworthiness instrument on the flow field between the submarine model and the ice layer is greatly reduced; the submersible model is connected with the airworthiness instrument through the supporting rod, and a waterproof adhesive tape is stuck at the joint of the supporting rod and the front end of the submersible model, so that the influence of water inflow of the submersible model on a test result in the test process is prevented; the telescopic shaft arranged in the support rod can better support the submersible model, so that the stability of the test process is improved; the airworthiness instrument is formed by connecting L-shaped airfoil plates, and meanwhile, the front end of the submersible model is connected with the airworthiness instrument through a cylinder, so that the influence of a flow field generated by a support rod and the airworthiness instrument on test data in the test process is reduced; the six-component waterproof force balance is fixed at the front end of the joint of the submersible model and the support rod to measure the response force and the blocked force of the submersible model, so that the influence of a flow field generated at the front ends of the submersible model and the support rod on test data can be reduced as much as possible; the load measurement precision of the testing device is subjected to static calibration and dynamic calibration of the sensor through standard force, so that the measurement precision of the load is ensured; the airworthiness instrument and the PIV measuring system are both fixed on a fixed die frame of a trailer side bridge to move along with the trailer, and the speed of the submarine model is controlled by controlling the running speed of the trailer; the motor, the shafting, the autopilot and the propeller model are arranged in the submersible model, the tail part of the propeller model is connected with the shafting, and the rotating speed of the propeller is controlled through a speed regulating box in the trailer; and finally uploading test data of the autopilot, the six-component waterproof force measuring level and the on-vehicle PIV measuring system to a data acquisition system in the trailer.
Drawings
FIG. 1 is a schematic view of the overall structure of the device of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1B according to the present invention;
FIG. 3 is a diagram of the overall effect of a simulated ice layer material of the apparatus of the present invention;
FIG. 4 is a side view of the device of the present invention;
FIG. 5 is an overall effect diagram of the simulated ice layer paving and recycling apparatus of the present invention;
FIG. 6 is a bearing diagram of a simulated ice layer paving recovery device of the present invention;
FIG. 7 is an overall effect diagram of the device of the invention simulating the state of a submarine autopilot;
fig. 8 is a partial enlarged view of a in fig. 5.
In the figure: the device comprises a test pool 1, a test pool side wall 2, a track 3, a polypropylene plate 4, a U-shaped connecting plate 5, a simulated ice layer paving and recycling device 6, a hollow steel plate 7, a first bolt 8, an L-shaped steel plate 9, a second bolt 10, a bearing 11, a rotating shaft 12, a telescopic steel rod 13, a pressing and fixing device 14, a semicircular hole protruding body 15, a hole connecting bearing 16, a clamp 17, a spring 18, a control rod 19, a traction rope 20, a navigable 21, a support rod 22, a telescopic shaft 23, a submersible model 24, a propeller model 25, a vehicle-mounted PIV measuring system 26, a six-component waterproof force measuring balance 27, a nylon rope 28, a motor 29, a shafting 30 and a navigable 31.
Detailed Description
The following detailed description of the preferred embodiments of the invention is provided in order to make the advantages and features of the invention more readily understood by those skilled in the art, and to provide a more clear and concise definition of the scope of the invention.
Example 1: the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state in the near-ice-surface navigation state comprises a test water tank 1, a simulated ice layer material, a simulated ice layer laying and recycling device 6, a simulated submersible vehicle self-propulsion state device and a test device; the test pool 1 comprises a trailer and a track 3;
the simulated ice layer material is composed of a polypropylene plate 4;
the simulated ice layer paving and recycling device 6 is fixed on the side wall 2 of the test pool by a first bolt 8; the simulated ice layer laying and recycling device 6 comprises an operating rod 19, a rotating shaft 12, a bearing 11, a first bolt 8, a second bolt 10, a hollow steel plate 7, an L-shaped steel plate 9, a telescopic steel rod 13, a pressing fixing device 14, a spring 18 and a clamp 17;
the device for simulating the self-propulsion state of the submersible comprises a submersible model 24, a propeller model 25, a seaworthiness instrument 21, a supporting rod 22, a telescopic shaft 23, a motor 29, a shafting 30 and a speed regulation box;
the test device consists of a vehicle-mounted PIV measuring system 26, a self-navigator 31 and a six-component waterproof force-measuring balance 27.
The hollow steel plate 7 is fixed on the side wall 2 of the test pool by a first bolt 8, and the L-shaped steel plate 9 is connected with the hollow steel plate 7 by a second bolt 10.
The bearing 11 is fixed in the middle part recess of L shaped steel board 9, installs axis of rotation 12 on the bearing 11, and the mid-mounting flexible steel pole 13 of axis of rotation 12, the upper end of axis of rotation 12 is fixed with control lever 19, and flexible steel pole 13 has circular hole groove, and the front end welding semi-circular foraminiferous outstanding appendage 25 of flexible steel pole 13, semi-circular foraminiferous appendage 25 middle part is connected with hole connection bearing 16.
The clamp 17 is connected with the telescopic steel rod 13 through the hole connecting bearing 16, the rear end of the clamp 17 is connected with the spring 18, the protruding hole attachment is welded above the clamp 17, and the traction rope 20 is connected with the protruding hole attachment above the clamp 17.
The propeller model 25 is arranged at the rear end of the submersible model 24, the submersible model 24 is connected with the airworthiness instrument 21 through a supporting rod 22, a telescopic shaft 23 is arranged in the supporting rod 22, a six-component waterproof force-measuring balance 27 is fixed at the front end of the joint of the submersible model 24 and the supporting rod 22, and the airworthiness instrument 21 is connected with a fixed die carrier on a trailer side bridge.
Holes are drilled on the edges of the polypropylene plates 4, and the polypropylene plates 4 are connected through the holes on the fixed edges of the U-shaped connecting plates 5.
The PIV on-vehicle measurement system 5, the autopilot 31 and the six-component waterproof force balance 27 are all connected with a data acquisition system.
Working principle: the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state of the submersible vehicle in the near-ice-surface navigation state comprises a test water tank 1, a simulated ice layer material, a simulated ice layer laying and recycling device 6, a simulated submersible vehicle self-propulsion state device and a test device.
In connection with figures 1-8, a simulated ice layer material is first built up in the build-up process. Every two polypropylene plates 4 are fixedly connected through a U-shaped connecting plate 5 at the pool head of the test pool 1 so as to achieve the required simulated continuous ice layer length; the edges of the two plates at the forefront and the rearmost ends of the built simulated ice layer material simulated continuous ice layer are perforated with holes and are penetrated with nylon ropes 28, and the connected polypropylene plates 4 are placed into a test pool. The test personnel can drag the simulated ice layer material in the water along the pool wall by the nylon rope 28, and after the simulated ice layer material is dragged to the approximate test position, the nylon rope 28 is fixed below the track 3 on one side of the pool wall. Then building a simulated ice layer paving and recycling device 6; the hollow steel plate 7 is fixed on the side wall 2 of the test pool, the L-shaped steel plate 9 is nested in the hollow steel plate 7 and is fixed through the second bolt 10, the bearing 11 is fixed in the middle groove of the L-shaped steel plate 9, and then the rotating shaft 12 is fixed on the bearing 11, so that the flexibility of the rotating shaft 12 is ensured. The telescopic steel rod 13 is fixed in the middle of the bearing 11, the operating rod 19 is fixed on the upper portion of the rotating shaft 12, the semicircular perforated protruding attachment 15 is welded at the front end of the telescopic steel rod 13, the perforated connecting bearing 16 is fixed in the perforated, the clamp 17 is connected with the telescopic steel rod 13 through the perforated connecting bearing 16, the rear end of the clamp 17 is connected with the spring 18 through the two protruding attachment connecting springs 18, the clamp 17 is in a closed state under the condition of not being subjected to other external forces through the action of the spring 18, the protruding perforated attachment is welded at the upper end of the clamp 17, the traction rope 20 is penetrated, and the opening size of the clamp 17 is controlled through pulling the traction rope 20. The up-down position of the clamp 17 can be controlled by adjusting the up-down position of the L-shaped steel plate 9;
thirdly, a device for simulating the self-propulsion state of the submersible vehicle is built, a motor 29, a shafting 30, a self-propulsion tester 31 and other self-propulsion test devices are installed in the submersible vehicle model 24, and after the installation is completed, the propeller model 25 is fixed at the rear end of the submersible vehicle model 24 and connected with the shafting 30. The length of the telescopic shaft 23 arranged in the support rod 22 is adjusted, the submersible model 24 is connected with the support rod 22, after the submersible model 24 is connected with the support rod 22, the length of the telescopic shaft 23 is controlled, the telescopic shaft 23 is contacted with the inner wall surface of the submarine model 6, and the stability of the submersible model 24 in the test process is improved. Attaching waterproof adhesive tape to the joint of the submersible model 24 and the support rod 22; a six-component waterproof load cell 27 is secured to the front end of the submersible model 24 at the junction with the support pole 22. The support bar 22 is fixed to the airworthiness instrument 21. The airworthiness instrument 21 and the PIV measuring system 5 are both fixed on a fixed die carrier of a trailer side bridge to move along with the trailer, the speed of the submersible model 24 is controlled by controlling the running speed of the trailer, and the rotating speed of the propeller is controlled by a speed regulating box in the trailer. The test data of the autopilot 31, the six-component waterproof force balance 27 and the on-board PIV measurement system 26 are finally uploaded to a data acquisition system in the trailer;
after the device for testing the load and the flow field of the submersible vehicle in the self-propulsion state in the near-ice navigation state is built, the device can be used for testing the load and the flow field of the submersible vehicle in the self-propulsion state in the near-ice navigation state. The direct voyage state of the submersible vehicle is taken as an analysis object, a test of the load and the flow field of the submersible vehicle in the self voyage state of the submersible vehicle in the near-ice voyage state is carried out, and the use process of the test device of the load and the flow field of the submersible vehicle in the self voyage state of the whole near-ice voyage state is described. Before the load and flow field test of the submersible vehicle in the self-propulsion state of the near-ice navigation state is carried out, the quality of the submersible vehicle and a propeller, a continuous ice layer scene and the self-propulsion state of the submersible vehicle are firstly researched, and a test scheme is determined. The size and mass of the submersible model 24 and the propeller model 25 are converted according to the test submersible and propeller;
checking the flexibility of the rotating shaft 12 and the clamp 17 for better control and adjustment of the position of the simulated continuous ice layer material; the up-down position of the clamp 17 can be controlled by adjusting the up-down position of the L-shaped steel plate 9, each device adjusts the clamp 17 to a proper position according to the water surface position of the polypropylene plate 4 by adjusting the up-down position of the L-shaped steel plate 9, then adjusts the opening size of the clamp 17 by adjusting the length of the telescopic steel rod 13 and the operating rod 19 and the pulling rope 20, so that the clamp 17 can fix the polypropylene plate 4, and after the fixing, the simulated ice layer material can be adjusted to a test position by the telescopic steel rod 13 and the operating rod 19 and the nylon ropes 28 at the front end and the rear end of the simulated continuous ice layer; after the length of the telescopic steel rod 13 is determined, the length of the telescopic steel rod 13 is fixed by pressing the fixing device 14, and the stability of the nylon rope 28 fixed below the track 3 at one side of the pool wall of the pool is checked again;
placing the trailer at the starting end of a test pool, and starting a load and flow field test of the submersible vehicle in a self-propulsion state under a near-ice-surface navigation state after preparation;
during the test, the self-propulsion state of the submarine model 24 is simulated by controlling the speed of the trailer and the rotating speed of the propeller, the uncertainty and convergence analysis is carried out on the data result obtained by the test to give the test precision and the reliability of the test result, the speed distribution is analyzed by processing the speed sample, the turbulence characteristic and the vortex distribution characteristic are extracted, and a numerical basis is provided for the research on the load of the submarine and the propeller under the boundary condition of the ice area, the distribution characteristic of the surrounding flow field and the flow mechanism.
And after the load and flow field test is completed in the self-sailing state of the submersible vehicle in the near-ice sailing state, copying out the data of each test device. Meanwhile, the trailer is placed at the starting end of the test pool 1 again, and after the water surface is restored to calm, the load and flow field test and research during the self-sailing state of the submersible vehicle in the next near-ice sailing state can be carried out. The test device can adjust the thickness of simulated ice layer materials according to different working conditions and the required continuous ice layer test environment, manufacture similar simulated continuous ice layer test environments, adjust the sizes and the qualities of the propeller model 25 and the propeller model 24 according to the sizes and the qualities of the submersible and the propeller required to be tested to simulate the joint debugging test of the submersible and the propeller of various models under various working conditions, and accordingly obtain more comprehensive data. The test device is not limited by seasons, and the whole test device can be fully utilized all the year round;
after the test is completed, firstly, the nylon rope 28 fixed below the track 3 on one side of the pool wall is loosened, then the clamp 17 is adjusted to a proper position by adjusting the upper and lower positions of the L-shaped steel plates 9, then the simulated ice layer material is transferred to the side wall 2 of the test pool by matching the control rod 19 and the nylon rope 28 through adjusting the length of the telescopic steel rod 13, the opening size of the clamp 17 is adjusted through the traction rope 20, the clamp 17 is released from fixing the simulated continuous ice layer material, and the recovery of the simulated continuous ice layer material is completed. And the recovered simulated ice layer material is disconnected with the U-shaped connecting plate 5 and stacked, so that the next use is facilitated.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.

Claims (7)

1. The utility model provides a load and flow field testing arrangement when submarine self-propulsion state under nearly ice surface navigation state, includes test pond (1), simulation ice layer material, simulation ice layer lays recovery unit (6), simulation submarine self-propulsion state device, test testing arrangement, its characterized in that: the test pool (1) comprises a trailer and a track (3);
the simulated ice layer material is composed of a polypropylene plate (4);
the simulated ice layer laying and recycling device (6) is composed of a hollow steel plate (7), a first bolt (8), an L-shaped steel plate (9), a second bolt (10), a bearing (11), a rotating shaft (12), a telescopic steel rod (13), a pressing and fixing device (14), a semicircular hole protruding body (15), a hole connecting bearing (16), a clamp (17), a spring (18), an operating lever (19) and a traction rope (20);
the simulated ice layer laying and recycling device (6) is fixed on the side wall (2) of the test pool by a first bolt (8);
the device for simulating the self-propulsion state of the submersible comprises a submersible model (24), a propeller model (25), a seaworthiness instrument (21), a supporting rod (22), a telescopic shaft (23), a motor (29), a shafting (30) and a speed regulation box;
the test device is composed of a vehicle-mounted PIV measuring system (26), a self-navigator (31) and a six-component waterproof force-measuring balance (27).
2. The device for testing the load and flow field of the submersible vehicle in the self-propulsion state in the ice-near sailing state according to claim 1, wherein the device comprises: the hollow steel plate (7) is fixed on the side wall (2) of the test pool through a first bolt (8), and the L-shaped steel plate (9) is connected with the hollow steel plate (7) through a second bolt (10).
3. The device for testing the load and flow field of the submersible vehicle in the self-propulsion state in the ice-near sailing state according to claim 1, wherein the device comprises: the bearing (11) is fixed in the middle part recess of L shaped steel board (9), install axis of rotation (12) on bearing (11), the mid-mounting flexible steel pole (13) of axis of rotation (12), the upper end of axis of rotation (12) is fixed with control lever (19), flexible steel pole (13) have circular hole groove, the protruding appendage (25) of semi-circular foraminiferous of front end welding of flexible steel pole (13), the protruding appendage (25) middle part of semi-circular foraminiferous is connected with hole connecting bearing (16).
4. The device for testing the load and flow field of the submersible vehicle in the self-propulsion state in the ice-near sailing state according to claim 1, wherein the device comprises: the clamp (17) is connected with the telescopic steel rod (13) through the hole connecting bearing (16), a spring (18) is connected to the rear end of the clamp (17), a protruding hole attachment is welded above the clamp (17), and the traction rope (20) is connected with the protruding hole attachment above the clamp (17).
5. The device for testing the load and flow field of the submersible vehicle in the self-propulsion state in the ice-near sailing state according to claim 1, wherein the device comprises: the screw model (25) is installed at the rear end of the submarine model (24), the submarine model (24) is connected with the seaworthiness instrument (21) through the supporting rod (22), the supporting rod (22) is internally provided with the telescopic shaft (23), the six-component waterproof force balance (27) is fixed at the front end of the junction of the submarine model (24) and the supporting rod (22), and the seaworthiness instrument (21) is connected with the die fixing frame on the trailer side bridge.
6. The device for testing the load and flow field of the submersible vehicle in the self-propulsion state in the ice-near sailing state according to claim 1, wherein the device comprises: the edges of the polypropylene plates (4) are provided with holes, the polypropylene plates (4) are provided with a plurality of holes, and the polypropylene plates (4) are connected with each other through the holes at the fixed edges of the U-shaped connecting plates (5).
7. The device for testing the load and flow field of the submersible vehicle in the self-propulsion state in the ice-near sailing state according to claim 1, wherein the device comprises: the PIV vehicle-mounted measuring system (5), the autopilot (31) and the six-component waterproof force-measuring balance (27) are connected with the data acquisition system. .
CN202310986644.1A 2023-08-07 2023-08-07 Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state Pending CN117104439A (en)

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CN202310986644.1A CN117104439A (en) 2023-08-07 2023-08-07 Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state

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Application Number Priority Date Filing Date Title
CN202310986644.1A CN117104439A (en) 2023-08-07 2023-08-07 Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state

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CN117104439A true CN117104439A (en) 2023-11-24

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CN202310986644.1A Pending CN117104439A (en) 2023-08-07 2023-08-07 Device for testing load and flow field of submersible vehicle in self-propulsion state under near-ice-surface navigation state

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