Underwater floating body icebreaking test device

Abstract

The invention discloses an underwater floating body icebreaking test device, which comprises an ice water pool and an icebreaking device, and is characterized in that the ice water pool is used for preparing an ice layer; the ice breaking device comprises a platform and a plurality of floating bodies, the platform is arranged at the bottom of the ice water pool, the floating bodies are arranged in an array mode, the floating bodies are connected to the platform through locking mechanisms, and the locking mechanisms can lock or loosen the floating bodies. According to the invention, the release of the floating bodies in specified positions, quantity and sequence can be realized, the mechanism of one-time icebreaking of free floating of one or more floating bodies can be researched, and the icebreaking load characteristics, the floating body structure deformation rule, the ice layer damage mode and the icebreaking mechanism of the floating bodies under the influence of variables such as impact speeds, shapes and impact angles of different floating bodies can be researched.

Description

Technical Field

[0001] The invention relates to the technical field of underwater icebreaking test devices, and in particular to an underwater floating body icebreaking test device. Background Art

[0002] With the growing demand for resource exploration and scientific investigation under the polar ice, researchers can release underwater robots by drilling holes on the surface of the ice, thereby exploring and discovering the subglacial ecological environment, topography and oil energy. However, due to the influence of complex environments such as waves and currents in the subglacial waters, polar underwater robots often have the problem of being unable to return to the initial drilling location. Therefore, it is necessary to find new ways to break ice for underwater robots trapped in the polar ice.

[0003] Patent CN117890074A discloses a device for constraining the floating icebreaking model of underwater objects at the scale of an ice water pool, comprising a pair of cross-brackets, a fixed pulley is provided on the top of the cross-bracket, a motor is provided on the outside of the cross-bracket, the motor is connected to a lifting rope, the lifting rope passes around the fixed pulley and is connected to a slider, the slider is located on a linear rail on the cross-bracket, the slider is connected to a lifting vertical hanger, the two lifting vertical hangers are respectively connected to one end of a lifting truss, an underwater object model is fixedly installed on the lifting truss, and a heating rod is inserted into the lifting vertical hanger.

[0004] The above-mentioned prior art is unable to study the mechanism of one or more floating bodies freely floating up and breaking ice at one time. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose an underwater floating body icebreaking test device to solve the technical problem that the prior art cannot study the mechanism of free floating of a single or multiple floating bodies and breaking ice at one time.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides an underwater floating body icebreaking test device, comprising: Ice water tanks for preparing ice layers; and The ice-breaking device comprises a platform and a plurality of floats, wherein the platform is arranged at the bottom of the ice water pool, the plurality of floats are arranged in an array, the floats are connected to the platform through a locking mechanism, and the locking mechanism can lock or loosen the floats.

[0007] In some embodiments, the locking mechanism includes an electromagnet and an adsorption member, the electromagnet is disposed on the platform, the adsorption member is disposed on the float, and the electromagnet and the adsorption member cooperate magnetically to fix the float to the float.

[0008] In some embodiments, the platform is movably arranged in a vertical direction so that the distance between the floating body and the ice layer can be adjusted.

[0009] In some embodiments, the ice breaking device also includes a first seat body and a lifting assembly, the first seat body is arranged at the bottom of the ice water pool, a platform is movably installed on the first seat body along the vertical direction, and the lifting assembly is connected to the platform to drive the platform to move along the vertical direction.

[0010] In some embodiments, the lifting assembly has a lifting part movably arranged in a vertical direction, and the platform is rotatably mounted on the lifting part along an axis in a horizontal direction; The ice breaking device further comprises a first driving assembly, wherein the first driving assembly is connected to the platform to drive the platform to rotate.

[0011] In some embodiments, the lifting assembly is rotatably mounted on the first base along an axis in a vertical direction.

[0012] In some embodiments, the first seat is movably arranged along a first direction so that the position of the platform in the ice water pool is adjustable in the first direction.

[0013] In some embodiments, the ice-breaking device further includes a plurality of recovery components, the plurality of recovery components correspond one-to-one to the plurality of floating bodies, the recovery components are disposed on the platform, the recovery components are connected to the floating bodies, and the recovery components recover the floating bodies.

[0014] In some embodiments, the recovery assembly includes a reel, a rope and a motor. The reel is rotatably mounted on the platform, one end of the rope is connected to the float, and the other end of the rope is wound around the reel. The motor is connected to the reel to drive the reel to rotate forward or reverse.

[0015] In some embodiments, a data acquisition device is disposed in the float, and the data acquisition device includes at least one of an acceleration sensor, a force sensor, a displacement sensor, a strain sensor, and a gyroscope.

[0016] Compared with the prior art, the underwater floating body icebreaking test device provided by the present invention has a platform arranged at the bottom of the ice water pool, and a plurality of locking mechanisms arranged in an array are provided on the upper side of the platform, and the floating body is installed on the locking mechanism. When in use, the platform is first placed at a set position at the bottom of the ice water pool, and then the floating body is installed on the locking mechanism, and then water is poured into the ice water pool until the set height, and then the ice layer is prepared in the ice water pool using the outdoor natural environment temperature or indoor equipment. After the ice layer reaches the expected ice thickness, the floating body icebreaking test can be carried out, and then the locking mechanism loosens the floating body, so that one or more of the floating bodies float up under the action of their own buoyancy, and the ice layer is destroyed by the floating body to complete the icebreaking experiment. The present application can realize the release of floating bodies at a specified position, quantity and sequence, and then the mechanism of free floating and one-time icebreaking of a single or multiple floating bodies can be studied, and at the same time, the floating body icebreaking load characteristics, floating body structure deformation law, ice layer damage mode and icebreaking mechanism under the influence of different floating body impact speeds, shapes, impact angles and other variables can be explored.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows with reference to the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of an underwater floating body icebreaking test device provided by the present invention; Figure 2 yes Figure 1 Front view of the middle icebreaker; Figure 3 yes Figure 1 A top view of the middle icebreaker; Figure 4 yes Figure 1 Cross-sectional view of the mid-platform and the floating body; Figure 5 yes Figure 4 Partial cross-sectional view of the mid-platform and buoy.

[0019] Description of reference numerals: 1-ice water pool, 11-ice layer, 12-guide rail, 2-ice breaking device, 21-platform, 22-floating body, 23-electromagnet, 24-first seat body, 25-lifting assembly, 251-lifting part, 26-first drive assembly, 27-second seat body, 28-second drive assembly, 281-driving gear, 282-driven gear, 283-second drive motor, 29-recovery assembly, 291-reel, 292-rope, 293-motor, 3-data acquisition device. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In order to solve the technical problem that the prior art cannot study the mechanism of one or more floats freely floating and breaking ice at one time, the present invention provides an underwater float icebreaking test device, which can realize the release of floats at specified positions, quantities and sequences, and further study the mechanism of one or more floats freely floating and breaking ice at one time, and at the same time, explore the float icebreaking load characteristics, float structure deformation law, ice layer damage mode and icebreaking mechanism under the influence of variables such as different float impact speeds, shapes and impact angles.

[0022] See also Figure 1 , Figure 1 It is a schematic structural diagram of an underwater floating body icebreaking test device in one embodiment of the present invention.

[0023] The present invention provides an underwater floating body 22 icebreaking test device, comprising an ice water pool 1 and an ice breaking device 2, wherein the ice water pool 1 is used to prepare an ice layer 11; and the ice breaking device 2 comprises a platform 21 and a plurality of floating bodies 22, wherein the platform 21 is arranged at the bottom of the ice water pool 1, and the plurality of floating bodies 22 are arranged in an array, and the floating bodies 22 are connected to the platform 21 via a locking mechanism, and the locking mechanism can lock or loosen the floating bodies 22.

[0024] In this example, see Figure 1 and Figure 3 The platform 21 is arranged at the bottom of the ice water pool 1. A plurality of locking mechanisms arranged in an array are arranged on the upper side of the platform 21. The floating body 22 is installed on the locking mechanism. When in use, the platform 21 is first placed at a set position at the bottom of the ice water pool 1, and then the floating body 22 is installed on the locking mechanism. Then, water is poured into the ice water pool 1 until the set height. Then, the ice layer 11 is prepared in the ice water pool 1 using the outdoor natural environment temperature or indoor equipment. After the ice layer 11 reaches the expected ice thickness, the ice breaking test of the floating body 22 can be carried out. Subsequently, the locking mechanism loosens the float 22, allowing one or more of the floats 22 to float up under the action of their own buoyancy, and the ice layer 11 is destroyed by the float 22 to complete the icebreaking experiment. The present application can realize the release of the floats 22 at a specified position, quantity and sequence, and then study the mechanism of one-time icebreaking by the free floating of a single or multiple floats 22. At the same time, the icebreaking load characteristics of the float 22, the structural deformation law of the float 22, the ice layer 11 damage mode and the icebreaking mechanism under the influence of variables such as the impact speed, shape and impact angle of the float 22 can also be explored.

[0025] In this embodiment, the specific form of the floating body 22 is not limited, and the floating body 22 can be spherical, ellipsoidal, square, or any other shape, and can be configured according to actual conditions. For ease of description, the following description assumes that the floating body 22 is spherical.

[0026] In one embodiment, see Figure 2 and Figure 4 The locking mechanism includes an electromagnet 23 and an adsorption member. The electromagnet 23 is arranged on the platform 21, and the adsorption member is arranged on the floating body 22. The electromagnet 23 cooperates with the adsorption member by magnetic attraction to fix the floating body 22 to the floating body 22.

[0027] In this embodiment, the electromagnet 23 is installed on the upper side of the platform 21. The electromagnet 23 has a power-on state and a power-off state. The adsorption component is arranged on the lower side of the float 22 corresponding to the electromagnet 23. When in the power-on state, the electromagnet 23 is magnetic, and the electromagnet 23 can cooperate with the adsorption component by magnetic attraction, so as to achieve the purpose of fixing the float 22 on the platform 21. When an ice-breaking experiment is required, the electromagnet 23 can be controlled to be in the power-off state. At this time, the electromagnet 23 loses its magnetism, and the electromagnet 23 is released from the adsorption component. The float 22 floats up and breaks the ice under the action of its own buoyancy to complete the experiment.

[0028] It should be noted that the electromagnets 23 are independent of each other and controlled separately, so that the ice-breaking mechanism of a single float 22 or multiple floats 22 floating up simultaneously or multiple floats 22 floating up in sequence in a specific order can be studied.

[0029] Furthermore, since the float 22 is spherical, in order to increase the surface area of ​​the electromagnet 23 and the adsorption component, the upper side of the electromagnet 23 is provided with an arc-shaped groove, and the groove is adapted to the float 22. The float 22 is arranged in the groove. Such a setting can increase the contact area between the electromagnet 23 and the adsorption component and enhance the adsorption force between the two.

[0030] Furthermore, there is no limitation on the specific form of the adsorption member. The adsorption member may be arranged in an arc shape and matched with the float 22. The adsorption member is bonded to the lower side of the float 22. The material of the adsorption member is iron. The material of the float 22 may also be iron, so that the float 22 itself constitutes the adsorption member to magnetically cooperate with the electromagnet 23.

[0031] In another embodiment, a connecting ring is provided on the lower side of the float 22; the locking mechanism includes a locking ring and a driver, the locking ring is rotatably installed on the platform 21 along an axis in the horizontal direction, the locking ring is provided with a notch, the notch is connected to the internal space of the locking ring, the locking ring is passed through the notch and is arranged in the connecting ring, the driver is connected to the locking ring to drive the locking ring to rotate, and in specific use, when the locking ring is rotated to the notch facing upward, the connecting ring can be extended into the locking ring, and then the locking ring is rotated so that the notch faces the other position, at which time the locking ring is connected to the connecting ring, thereby achieving the purpose of fixing the float 22, and when the float 22 needs to be released, the locking ring is rotated so that the notch faces upward, at which time the connecting ring can be detached from the locking ring to complete the release.

[0032] In one embodiment, see Figure 2 The platform 21 is movably arranged in the vertical direction so that the distance between the floating body 22 and the ice layer 11 can be adjusted.

[0033] In this embodiment, the platform 21 can be movably arranged in the vertical direction, so that the height of the float 22 can be adjusted, and then the distance between the float 22 and the ice layer 11 can be adjusted, so that the icebreaking load characteristics of the float 22 when the float 22 is in different initial release positions, the deformation law of the float 22 structure, the ice layer 11 damage mode and the icebreaking mechanism can be studied. At the same time, when the platform 21 drives the float 22 to move vertically, different initial velocities can be given to the float 22, so that the influence of different initial velocities on icebreaking can also be studied.

[0034] In one embodiment, see Figure 2 The ice-breaking device 2 also includes a first seat body 24 and a lifting assembly 25. The first seat body 24 is arranged at the bottom of the ice water pool 1, and the platform 21 is movably installed on the first seat body 24 along the vertical direction. The lifting assembly 25 is connected to the platform 21 to drive the platform 21 to move along the vertical direction.

[0035] In this embodiment, the first seat body 24 is located at the bottom of the ice water pool 1, and the platform 21 is installed on the first seat body 24 through the lifting assembly 25, so that the platform 21 can move in the vertical direction relative to the first seat body 24, thereby adjusting the initial position of the float 22.

[0036] Furthermore, the lifting component 25 includes one of a pneumatic cylinder, a hydraulic cylinder and an electric cylinder. The following description takes the lifting component 25 as an electric cylinder as an example. The electric cylinder is installed on the first seat body 24, the push rod of the electric cylinder is arranged upward, and the platform 21 is installed on the upper end of the push rod, so that the platform 21 is driven to move in the vertical direction by the electric cylinder. Since the lifting component 25 is arranged on the first seat body 24 and is located inside the ice-water pool 1, no lifting vertical hanging parts suspended across the ice-water interface are used for control, so the prepared ice layer 11 has a more ideal fixed support boundary condition, and the boundary condition will not be changed due to the up and down reciprocating movement of the suspended lifting vertical hanging parts during the test. In addition, the flat and intact ice surface is more conducive to the installation of cameras, video recorders and motion cameras at any position above it, which can better capture the image data of the icebreaking process.

[0037] In one embodiment, see Figure 2 and Figure 4 The lifting assembly 25 has a lifting part 251 movably arranged in the vertical direction, and the platform 21 is rotatably installed on the lifting part 251 along the axis in the horizontal direction; the ice breaking device 2 also includes a first driving assembly 26, which is connected to the platform 21 to drive the platform 21 to rotate.

[0038] In this embodiment, the push rod constitutes the lifting part 251, and the bottom of the platform 21 is rotatably installed on the upper end of the push rod along the axis in the horizontal direction, so that the platform 21 can rotate relative to the platform 21, thereby adjusting the inclination angle of the platform 21 and the floating body 22 relative to the horizontal plane. In this way, the effects of different inclination angles on the icebreaking load characteristics of the floating body 22, the deformation law of the floating body 22 structure, the damage mode of the ice layer 11 and the icebreaking mechanism can be studied.

[0039] Furthermore, a mounting plate is provided at the upper end of the push rod, and two spaced mounting protrusions are convexly provided on the upper side of the mounting plate, and a mounting groove is formed between the two mounting protrusions, and a mounting hole connected to the mounting groove is penetrated by the mounting protrusion. A connecting rod is provided at the middle part of the lower side of the platform 21, and a rotating shaft extending in a horizontal direction is provided at the lower end of the connecting rod. The lower end of the connecting rod is adapted to the mounting groove, and the lower end of the connecting rod is located in the mounting groove. The rotating shaft is rotatably installed in the mounting hole, and one end of the rotating shaft extends out of the mounting hole. The first driving assembly 26 includes a first driving motor 293, and the main shaft of the first driving motor 293 is fixedly connected to one end of the rotating shaft, so that the platform 21 is driven to rotate by the first driving motor 293.

[0040] In one embodiment, see Figure 2The lifting assembly 25 is rotatably mounted on the first seat body 24 along an axis in the vertical direction.

[0041] In this embodiment, in order to enable the platform 21 to be rotatable in all directions, the ice-breaking device 2 also includes a second seat body 27 and a second drive assembly 28. The second seat body 27 is rotatably installed on the first seat body 24 along an axis in the vertical direction. The lifting assembly 25 is installed on the second seat body 27. The second drive assembly 28 is arranged on the first seat body 24. The second drive assembly 28 is connected to the second seat body 27, thereby driving the second seat body 27 and the lifting assembly 25 to rotate. By rotating the lifting assembly 25, the platform 21 can be rotated in all directions, which is conducive to exploring the influence of angle on ice breaking.

[0042] Furthermore, the second driving assembly 28 includes a driving gear 281, a driven gear 282 and a second driving motor 283. The driving gear 281 is rotatably installed on the upper side of the first seat body 24 along the axis in the vertical direction. The driven gear 282 is sleeved on the outer periphery of the second seat body 27 and fixedly connected to the second seat body 27. The driving gear 281 and the driven gear 282 are meshed. The main shaft of the second driving motor 283 is connected to the rotating gear, so that the gears are meshed through the second driving motor 283, thereby driving the second seat body 27 to rotate.

[0043] In one embodiment, see Figure 1 and Figure 2 The first seat body 24 is movably arranged along a first direction so that the position of the platform 21 in the ice water pool 1 can be adjusted in the first direction.

[0044] In this embodiment, the first seat 24 is configured as a mobile trolley, which can move along the length direction (i.e., the first direction) of the ice water pool 1, so that the position of the float 22 in the first direction is adjustable. Since the overall length of the ice water pool 1 is relatively long, after an ice breaking test is performed at one location, only the ice layer 11 in this area is broken, while the remaining ice layers 11 can continue to be tested for ice breaking. At this time, the mobile trolley can be used to drive the float 22 to move to the area where the remaining ice layers 11 are intact for a second ice breaking test, until the entire ice water pool 1 is completely free of ice. The ice layer 11 is completely destroyed. Such a setting does not require the previous group of ice-breaking areas to be completely cleared of ice and a new ice layer 11 of a fixed thickness to be prepared, which greatly shortens the cycle of the repetitive test and reduces the test cost. At the same time, the mobile vehicle can also provide the float 22 with an initial velocity along the first direction, that is, not only can the float 22 be vertically floated and ice-broken in the designated area, but the float 22 can also be released instantly by using the trailer to achieve horizontal movement, so that the float 22 can float obliquely upward to impact and break the ice, thereby facilitating the study of the influence of different horizontal initial velocities on the ice-breaking of the float 22.

[0045] In this embodiment, two guide rails 12 are further provided at the bottom of the ice water pool 1. The guide rails 12 extend along the first direction, and the two guide rails 12 are spaced apart along the second direction. The moving trolley is arranged on the two guide rails 12, and the moving trolley can be lowered by the guide rails 12 so that it can only move along the first direction.

[0046] In one embodiment, see Figure 4 and Figure 5 The ice breaking device 2 further includes a plurality of recovery components 29 , and the plurality of recovery components 29 correspond one to one with the plurality of floating bodies 22 . The recovery components 29 are arranged on the platform 21 , and the recovery components 29 are connected to the floating bodies 22 , and the recovery components 29 recover the floating bodies 22 .

[0047] In this embodiment, since multiple ice-breaking tests can be performed in the ice water pool 1, the platform 21 is also provided with a recovery component 29, which can recover the floating body 22 and re-fix it on the electromagnet 23, thereby facilitating the next ice-breaking test.

[0048] In one embodiment, see Figure 4 and Figure 5 The recovery component 29 includes a reel 291, a rope 292 and a motor 293. The reel 291 is rotatably mounted on the platform 21. One end of the rope 292 is connected to the floating body 22. The other end of the rope 292 is wound around the reel 291. The motor 293 is connected to the reel 291 to drive the reel 291 to rotate forward or reverse.

[0049] In this embodiment, an installation cavity is provided inside the platform 21, and the platform 21 is also provided with a plurality of first through holes, and the plurality of first through holes are all connected to the installation cavity, and the plurality of first through holes are arranged in an array, and a second through hole is provided in the middle of the electromagnet 23, and the second through hole corresponds to the first through hole, and the reel 291 is rotatably installed in the installation cavity, one end of the rope 292 passes through the first through hole and the second through hole and is connected to the floating body 22, and the other end of the rope 292 is wound around the reel 291, and the motor 293 is connected to the reel 291, and when the motor 293 drives the reel 291 to rotate forward, the reel 291 can reel the rope 292, and when the When the motor 293 drives the reel 291 to rotate in the opposite direction, the reel 291 can unwind the rope 292. When an icebreaking test is required, the electromagnet 23 is powered off and the motor 293 drives the reel 291 to rotate in the opposite direction. At this time, the float 22 floats up to break the ice. After the ice is broken, the motor 293 drives the reel 291 to rotate forward, and drives the float 22 downward through the rope 292 until the float 22 contacts the electromagnet 23. At this time, the electromagnet 23 is energized, and the electromagnet 23 and the adsorption member magnetically cooperate to fix the float 22 on the platform 21. This arrangement facilitates the recovery of the float 22, is simple to operate, and is easy to use.

[0050] Furthermore, the rope 292 is detachably connected to the floating body 22. During the floating process of the floating body 22, the rope 292 may generate a certain drag force on the floating body 22, thereby affecting the accuracy of the test results. Therefore, the rope 292 and the floating body 22 can be separated according to actual needs and not recovered.

[0051] In one embodiment, see Figure 4 and Figure 5 A data acquisition device 3 is provided in the floating body 22, and the data acquisition device 3 includes at least one of an acceleration sensor, a force sensor, a displacement sensor, a strain sensor and a gyroscope.

[0052] In this embodiment, photography and video equipment such as motion cameras can be placed under and on the surface of the ice layer 11 to record the entire process of the floating body 22 breaking the ice.

[0053] It is understandable that, for thicker ice layers 11, when the float 22 is unable to break the ice, explosives can be pre-loaded inside the float 22, and multiple floats 22 arranged under the ice plate can be floated and exploded simultaneously or non-simultaneously to break the ice.

[0054] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the present invention is described in detail: Before the test begins, the mobile trolley is first installed on the guide rail 12 inside the ice water pool 1 that has not been filled with water. According to the test requirements, various data acquisition devices such as acceleration sensors, force sensors, displacement sensors, strain sensors or gyroscopes are installed inside the floating body 22, and the ice-breaking device 2 is debugged to ensure that it can work normally under water-free conditions. Then, water is poured into the ice water pool 1 to the expected height, and the ice-breaking device 2 is again installed to ensure that it works normally underwater. Next, the ice layer 11 is prepared using the outdoor natural environment temperature or the indoor artificially set temperature. After the ice layer 11 reaches the expected ice thickness, the first group of floating body 22 ice-breaking tests are prepared. The platform 21 and the floating body 22 are driven to move in the vertical direction by the lifting assembly 25, and the vertical initial speed and initial water depth of the initial release of the floating body 22 are adjusted. The horizontal initial speed of the initial release of the floating body 22 is adjusted by the movement of the mobile trolley in the first direction. The initial angle of the platform 21 is adjusted by the first drive assembly 26 and the second drive assembly 28. When the floating body 22 reaches the specified position and meets the initial state After that, the electromagnet 23 is powered off, and the motor 293 drives the reel 291 to rotate in the reverse direction to realize the release of the floating bodies 22 at the designated position, designated number and sequence, so as to complete the icebreaking test of the floating bodies 22. After the icebreaking test of this group is completed, the motor 293 drives the reel 291 to rotate forward, and drives the floating bodies 22 to move downward through the rope 292 until the floating bodies 22 contact the electromagnet 23. At this time, the electromagnet 23 is powered on to realize the connection between the floating bodies 22 and the platform 21. Subsequently, the platform 21 is Restore it to the initial underwater height, and move it further forward through the mobile vehicle until it keeps a distance from the icebreaking area generated by the first set of tests, try to avoid the influence of the boundary effect of the ice layer 11 on the next set of tests, repeat the above operation, and conduct multiple sets of icebreaking tests of the floating body 22 under different working conditions, until no suitable icebreaking area can be found along the length direction of the ice water pool 1, move the platform 21 to the initial underwater position, clean up the broken ice, and repeat the preparation of a layer of ice of a specified thickness and the icebreaking test until the test of the corresponding number of groups and working conditions is completed.

[0055] Compared with the existing icebreaking method of adjusting ballast water to achieve up and down reciprocating motion of the float 22, the present application directly releases the float 22 underwater to freely float up and break ice, without the need for subsequent electric drive to adjust the ballast water, thus achieving better energy-saving and power-saving effects.

[0056] The present application utilizes the on and off of power of the electromagnet 23 to realize the high-precision free release of the plurality of floating bodies 22, and utilizes the recovery assembly 29 to realize the rapid return and recovery of the plurality of floating bodies 22 after the icebreaking test.

[0057] The present application can adjust the position, speed, angle, quantity and sequence of the initial release of the float 22, and then explore the icebreaking load characteristics of the float 22, the deformation law of the float 22 structure, the damage mode of the ice layer 11 and the icebreaking mechanism under the influence of different variables.

[0058] The present application does not require repeated adjustment of ballast water and mechanical rotation, has a simple structure and low cost.

[0059] The icebreaking of the floating body 22 of the present application is controlled by a mobile trolley at the bottom of the ice water pool 1. After a group of tests is completed, it can quickly move to the bottom of the next group of floating icebreaking positions along the length direction of the ice water pool 1. There is no need to completely clear the ice in the previous group of icebreaking areas and re-prepare an ice layer 11 of fixed thickness, which greatly shortens the cycle of repetitive tests and reduces test costs.

[0060] In the present application, since the movement of the platform 21 is not controlled by the lifting vertical pendant suspended across the ice-water interface, the prepared ice layer 11 has a more ideal fixed boundary condition, and the boundary condition will not be changed during the test due to the up and down reciprocating movement of the suspended lifting vertical pendant. In addition, the flat and intact ice surface is more conducive to the installation of cameras, video recorders and motion cameras at any position above it, which can better capture the image data of the icebreaking process of the float 22.

[0061] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An underwater floating body icebreaking test device, characterized in that: It includes: Ice water pool, used to prepare ice layer; as well as An ice-breaking device, comprising a platform and a plurality of floats, wherein the platform is arranged at the bottom of the ice-water pool, the plurality of floats are arranged in an array, the floats are connected to the platform via a locking mechanism, and the locking mechanism can lock or loosen the floats; Wherein, the platform is movably arranged in the vertical direction so that the distance between the floating body and the ice layer can be adjusted; The ice breaking device also includes a first seat body and a lifting assembly, wherein the first seat body is arranged at the bottom of the ice water pool, a platform is movably installed on the first seat body along a vertical direction, and the lifting assembly is connected to the platform to drive the platform to move along a vertical direction.

2. The underwater floating body icebreaking test device according to claim 1, characterized in that: The locking mechanism comprises an electromagnet and an adsorption member, wherein the electromagnet is arranged on the platform, and the adsorption member is arranged on the floating body. The electromagnet cooperates with the adsorption member by magnetic attraction to fix the floating body on the floating body.

3. The underwater floating body icebreaking test device according to claim 1, characterized in that: The lifting assembly comprises a lifting part movably arranged in a vertical direction, and the platform is rotatably mounted on the lifting part along an axis in a horizontal direction; The ice breaking device further comprises a first driving assembly, wherein the first driving assembly is connected to the platform to drive the platform to rotate.

4. The underwater floating body icebreaking test device according to claim 1, characterized in that: The lifting assembly is rotatably mounted on the first seat body along an axis in a vertical direction.

5. The underwater floating body icebreaking test device according to claim 1, characterized in that: The first seat is movably arranged along a first direction, so that the position of the platform in the ice water pool is adjustable in the first direction.

6. The underwater floating body icebreaking test device according to claim 1, characterized in that: The ice-breaking device further comprises a plurality of recovery components, the plurality of recovery components correspond to the plurality of floating bodies one by one, the recovery components are arranged on the platform, the recovery components are connected to the floating bodies, and the recovery components recover the floating bodies.

7. The underwater floating body icebreaking test device according to claim 6, characterized in that: The recovery assembly includes a reel, a rope and a motor. The reel is rotatably mounted on the platform, one end of the rope is connected to the float, and the other end of the rope is wound around the reel. The motor is connected to the reel to drive the reel to rotate forward or reverse.

8. The underwater floating body icebreaking test device according to claim 1, characterized in that: A data acquisition device is arranged in the floating body, and the data acquisition device includes at least one of an acceleration sensor, a force sensor, a displacement sensor, a strain sensor and a gyroscope.

Images