CN114199508A - Test device and method for researching multi-posture maneuvering ice breaking of submerged body under ice - Google Patents
Test device and method for researching multi-posture maneuvering ice breaking of submerged body under ice Download PDFInfo
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- CN114199508A CN114199508A CN202111506332.3A CN202111506332A CN114199508A CN 114199508 A CN114199508 A CN 114199508A CN 202111506332 A CN202111506332 A CN 202111506332A CN 114199508 A CN114199508 A CN 114199508A
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- 238000012360 testing method Methods 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000013461 design Methods 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 239000003550 marker Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
Abstract
The invention belongs to the technical field of ice breaking, and particularly relates to a test device and a method for researching multi-posture maneuvering ice breaking of a submerged body under ice. The test boat mold is driven to move in the vertical direction along the pool wall rail by replacing the detachable slide rail and utilizing the driving pulley mechanism, and meanwhile, the transverse movement mechanism can be used for driving the boat mold to move in the horizontal direction, and the boat mold and the transverse movement mechanism are linked to realize large-range three-dimensional movement of the boat mold in space. According to the invention, the marker points are placed on the surface of the layer ice, and the binocular displacement measurement system is utilized to record the displacement change of the marker points and the process of crushing the layer ice, so that the method provides help for exploring the best ice breaking effect when the submerged body is maneuvered under the ice.
Description
Technical Field
The invention belongs to the technical field of ice breaking, and particularly relates to a test device and a method for researching multi-posture maneuvering ice breaking of a submerged body under ice.
Background
In arctic regions, the sea bottom topography is flat, the ice cover is wide, and the current ice breaking method of the submerged body mostly adopts a contact type ice breaking method, namely, ballast water is discharged to enable the submerged body to obtain sufficient buoyancy, and the shell of the submerged body is utilized to crash the ice on the upper layer. Although this method is common, there is a certain risk in the implementation, and there has been a record that the submerged body floats up and is trapped. It is therefore necessary to explore a "non-contact" method of breaking ice.
Based on the wave-shaped resonance ice breaking principle, the underwater flow field can be changed by quickly maneuvering the submerged body at a position close to the layered ice, so that the layered ice is resonated to generate larger deformation, even fracture and break, and the aim of breaking ice and yielding water of the submerged body is fulfilled. In the current test device, the submerged body mostly moves in one dimension (straight line) or two dimensions (plane), and the large-range three-dimensional motion of the submerged body under ice can not be realized by the test device, so that research on related model tests is urgently needed to research the influence of the motion posture of the submerged body on the ice breaking effect.
Disclosure of Invention
The invention aims to provide a test device and a method for researching multi-posture maneuvering ice breaking of a submerged body under ice.
A test device for researching multi-attitude maneuvering ice breaking of a submerged body under ice comprises a test water pool 1, a test track, a test boat mold 3, a driving pulley mechanism 4, a driven pulley mechanism 5 and a binocular displacement measurement system 7; a control and power element 11 and a transverse movement mechanism 12 are arranged in a middle cabin 10 of the test boat mold 3; the test water tank 1 is frozen with the layer ice 8; the test tracks are arranged on two side wall surfaces inside the test water pool 1 and are positioned below the layer ice 8; the driving pulley mechanism 4 and the driven pulley mechanism 5 are arranged on the test track; the test boat mold 3 is connected with the driving pulley mechanisms 4 and the driven pulley mechanisms 5 on two sides through the screw rods 6, the screw rods 6 penetrate through the transverse movement mechanism 12, the driving motor 43 in the driving pulley mechanism 4 drives the test boat mold 3 to move longitudinally along the test track, and the transverse movement mechanism 12 enables the test boat mold 3 to move transversely along the screw rods 6; the binocular displacement measurement system 7 is used for observing the deformation position of the layer ice 8.
A test method for researching multi-attitude maneuvering ice breaking of a submerged body under ice comprises the following steps:
step 1: arranging a test device, selecting a corresponding type of test track according to the test content, installing the test track on the side wall of the test pool 1, respectively inserting the driving pulley mechanism 4 and the driven pulley mechanism 5 from one end of the test track and sliding to proper positions, and then installing the test boat mold 3 and the screw 6; finally, installing a binocular displacement measurement system 7 according to the deformation position of the ice layer 8 to be observed and adjusting the shooting angle;
step 2: according to the design content of the test, injecting water into the test water pool 1, stopping injecting water after a preset water level is reached, and starting to freeze the layer ice 8; after the layer of ice 8 has a certain thickness, placing the soaked paper markers 9 on the layer of ice 8 and freezing them together with the layer; setting the driving speed of a driving motor 43 in the driving pulley mechanism 4 according to the test design requirement, so that the test boat mold 3 moves on the test track at a specified speed; setting the driving speed and the rotating direction of a driving motor 121 in the transverse movement mechanism 12 to enable the test boat mold 3 to complete the translational or transverse reciprocating movement from one side to the other side along the screw 6; therefore, the test boat mold 3 can realize large-range three-dimensional movement in the vertical direction and the horizontal direction, and after the thickness of the layered ice 8 reaches a test preset value, a test starts;
and step 3: the test boat mold 3 performs large-range three-dimensional motion under ice according to a preset motion mode to cause the layer ice 8 to deform or break, and at the moment, the binocular displacement measurement system 7 monitors and records the motion displacement of the mark points 9 fixed above the layer ice 8 to obtain the deflection change of the layer ice 8 at the corresponding positions; the collected data can be analyzed to obtain the best ice breaking effect of the test boat model 3 in which motion mode.
The invention has the beneficial effects that:
the test boat mold is driven to move in the vertical direction along the pool wall rail by replacing the detachable slide rail and utilizing the driving pulley mechanism, and meanwhile, the transverse movement mechanism can be used for driving the boat mold to move in the horizontal direction, and the boat mold and the transverse movement mechanism are linked to realize large-range three-dimensional movement of the boat mold in space. According to the invention, the marker points are placed on the surface of the layer ice, and the binocular displacement measurement system is utilized to record the displacement change of the marker points and the process of crushing the layer ice, so that the method provides help for exploring the best ice breaking effect when the submerged body is maneuvered under the ice.
Drawings
FIG. 1 is a schematic diagram (curved track) of the structure of the test apparatus of the present invention.
FIG. 2 is a schematic diagram of the structure of the test apparatus according to the present invention (horizontal linear rail).
FIG. 3 is a schematic diagram of the structure of the test apparatus according to the present invention (inclined linear rail).
FIG. 4 is a schematic diagram of the test apparatus of the present invention (including the ice layer).
Fig. 5 is a schematic view of the arrangement of the middle cabin of the hull in the invention.
Fig. 6 is a schematic view of the structure of the active pulley mechanism of the present invention.
Fig. 7 is a schematic view of the structure of the driven pulley mechanism of the present invention.
Fig. 8 is a schematic view of the structure of the lateral movement mechanism of the present invention.
The figure includes: the test water tank 1, the curve rail 21, the horizontal linear rail 22, the inclined linear rail 23, the test boat mold 3, the driving pulley mechanism 4, the driven pulley mechanism 5, the screw 6, the binocular displacement measuring system 7, the test ice layer 8, the marking point 9, the boat body middle cabin 10, the control and power element 11, the transverse movement mechanism 12, the bearing 13, the driving pulley mounting frame 41, the pulley 42, the driving motor 43, the bearing mounting plate 44, the driven pulley mounting frame 51, the pulley 52, the bearing mounting plate 53, the driving motor 121, the hoop 122, the driving gear 123, the driven gear 124, the worm gear 125, the base 126, the bolt 127 and the nut 128.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Aiming at the problem of ice breaking by the motion of a submerged body in the prior art, the invention aims to provide a test method and a test device for researching the influence of the motion posture of the submerged body on the ice breaking effect.
The test boat mold can move in the vertical direction through the detachable sliding rail and the driving/driven pulley mechanism, the test boat mold can move in the horizontal direction through the transverse movement device, the mark points are arranged on the surface of the layer ice, and the displacement change of the mark points and the layer ice crushing process are recorded by using the binocular displacement measurement system.
A test device for researching multi-attitude maneuvering ice breaking of a submerged body under ice comprises a test water pool 1, a test track, a test boat mold 3, a driving pulley mechanism 4, a driven pulley mechanism 5 and a binocular displacement measurement system 7; a control and power element 11 and a transverse movement mechanism 12 are arranged in a middle cabin 10 of the test boat mold 3; the test water tank 1 is frozen with the layer ice 8; the test tracks are arranged on two side wall surfaces inside the test water pool 1 and are positioned below the layer ice 8; the driving pulley mechanism 4 and the driven pulley mechanism 5 are arranged on the test track; the test boat mold 3 is connected with the driving pulley mechanisms 4 and the driven pulley mechanisms 5 on two sides through the screw rods 6, the screw rods 6 penetrate through the transverse movement mechanism 12, the driving motor 43 in the driving pulley mechanism 4 drives the test boat mold 3 to move longitudinally along the test track, and the transverse movement mechanism 12 enables the test boat mold 3 to move transversely along the screw rods 6; the binocular displacement measurement system 7 is used for observing the deformation position of the layer ice 8.
A test method for researching multi-attitude maneuvering ice breaking of a submerged body under ice comprises the following steps:
step 1: arranging a test device, selecting a corresponding type of test track according to the test content, installing the test track on the side wall of the test pool 1, respectively inserting the driving pulley mechanism 4 and the driven pulley mechanism 5 from one end of the test track and sliding to proper positions, and then installing the test boat mold 3 and the screw 6; finally, installing a binocular displacement measurement system 7 according to the deformation position of the ice layer 8 to be observed and adjusting the shooting angle;
step 2: according to the design content of the test, injecting water into the test water pool 1, stopping injecting water after a preset water level is reached, and starting to freeze the layer ice 8; after the layer of ice 8 has a certain thickness, placing the soaked paper markers 9 on the layer of ice 8 and freezing them together with the layer; setting the driving speed of a driving motor 43 in the driving pulley mechanism 4 according to the test design requirement, so that the test boat mold 3 moves on the test track at a specified speed; setting the driving speed and the rotating direction of a driving motor 121 in the transverse movement mechanism 12 to enable the test boat mold 3 to complete the translational or transverse reciprocating movement from one side to the other side along the screw 6; therefore, the test boat mold 3 can realize large-range three-dimensional movement in the vertical direction and the horizontal direction, and after the thickness of the layered ice 8 reaches a test preset value, a test starts;
and step 3: the test boat mold 3 performs large-range three-dimensional motion under ice according to a preset motion mode to cause the layer ice 8 to deform or break, and at the moment, the binocular displacement measurement system 7 monitors and records the motion displacement of the mark points 9 fixed above the layer ice 8 to obtain the deflection change of the layer ice 8 at the corresponding positions; the collected data can be analyzed to obtain the best ice breaking effect of the test boat model 3 in which motion mode.
Compared with the prior art, the test device for researching the multi-posture maneuvering ice breaking of the submerged body under the ice controls the test boat mold to move in the vertical direction by replacing the detachable slide rail; the large-scale maneuvering of the test boat mold in the horizontal line direction is realized by setting the movement mode of the transverse movement device. Meanwhile, the pulley mechanism and the transverse movement mechanism for driving the test boat mould to move are respectively arranged on the side wall of the water pool and inside the boat mould, so that hydrodynamic interference of the boat mould is reduced to the maximum extent.
Example 1:
the test boat mold is driven by the driving pulley mechanism to move in the vertical direction along the pool wall rail, and the transverse movement mechanism can be used for driving the boat mold to move in the horizontal direction, so that the large-range three-dimensional movement of the boat mold in the space can be realized through linkage of the boat mold and the transverse movement mechanism. And recording the displacement change of the mark point and the process of crushing the layer ice through a binocular displacement measurement system. Help is provided for exploring the best ice breaking effect when the submerged body maneuvers under ice.
The rail installation is needed before the test is started, and the corresponding types of rails, such as the curved rail 21, the horizontal linear rail 22 and the inclined linear rail 23 shown in fig. 1, fig. 2 and fig. 3, are selected according to the test content. After the rail is installed on the side wall of the test pool 1, the driving pulley mechanism 4 and the driven pulley mechanism 5 need to be inserted from one end of the rail and slide to proper positions. And then, installing the test boat mold 3 and the screw 6. The screw 6 firstly passes through a bearing 13 fixed on the boat mould 3, then passes through a worm wheel 125 in the transverse movement mechanism 12, and finally passes out of the bearing 13 at the other end of the boat mould. The connection of the test boat mold 3 and the screw 6 is completed. And moving the test boat mold 3 and the screw 6 to the driving pulley mechanism 4 and the driven pulley mechanism 5, so that the screw 6 is respectively connected with the bearing mounting plate 44 in the driving pulley mechanism 4 and the bearing mounting plate 53 in the driven pulley mechanism 5. And finally, installing a binocular displacement measurement system 7 according to the deformation position of the ice layer to be observed and adjusting the shooting angle. The test rig assembly is now complete.
By changing the water level of the test water tank, the distance between the test boat mold 3 and the layer ice can be adjusted. According to the design content of the test, water is injected into the test water tank 1, the water injection is stopped after the preset water level is reached, and the ice 8 is frozen. When the layer of ice 8 has a certain thickness, the placement of the wetted paper markers 9 on the layer of ice 8 is started and allowed to freeze with the layer. According to the requirement of test design, the driving speed of a driving motor 43 in the driving pulley mechanism 4 is set, so that the boat mold moves on the track at a specified speed; the driving speed and the rotating direction of the driving motor 121 in the transverse moving mechanism 12 are set, so that the boat mould can complete the translational motion or transverse reciprocating motion from one side to the other side along the screw 6. Up to this point, the test boat module 3 can achieve large-scale three-dimensional motion in the vertical direction and the horizontal direction. When the thickness of the ice layer 8 reaches the preset value of the test, the test is started.
The test boat mold 3 performs large-scale three-dimensional movement under ice according to a preset movement mode, and the laminar ice 8 is deformed or broken. At the moment, the binocular displacement measurement system 7 monitors and records the movement displacement of the mark points 9 fixed above the layer ice 8, so that the deflection change of the layer ice 8 at the corresponding position can be obtained, and the collected data can be analyzed to obtain the best ice breaking effect of the boat mold 3 in which movement mode.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A test device for researching multi-posture maneuvering ice breaking of a submerged body under ice is characterized in that: the device comprises a test pool (1), a test track, a test boat mould (3), a driving pulley mechanism (4), a driven pulley mechanism (5) and a binocular displacement measurement system (7); a control and power element (11) and a transverse movement mechanism (12) are arranged in a middle cabin (10) of the test boat mould (3); the test water tank (1) is frozen with ice layer (8); the test tracks are arranged on two side wall surfaces inside the test water pool (1) and are positioned below the layer ice (8); the driving pulley mechanism (4) and the driven pulley mechanism (5) are arranged on the test track; the test boat mold (3) is connected with the driving pulley mechanisms (4) and the driven pulley mechanisms (5) on two sides through the screw (6), the screw (6) penetrates through the transverse movement mechanism (12), the drive motor (43) in the driving pulley mechanism (4) drives the test boat mold (3) to move longitudinally along the test track, and the transverse movement mechanism (12) enables the test boat mold (3) to move transversely along the screw (6); the binocular displacement measurement system (7) is used for observing the deformation position of the ice layer (8).
2. The test method for researching the test device for the multi-posture maneuvering ice breaking of the submerged body under the ice based on the claim 1 is characterized in that: the method comprises the following steps:
step 1: arranging a test device, selecting a corresponding type of test track according to test content, installing the test track on the side wall of the test pool (1), respectively inserting the driving pulley mechanism (4) and the driven pulley mechanism (5) from one end of the test track and sliding to proper positions, and then installing the test boat mold (3) and the screw (6); finally, installing a binocular displacement measurement system (7) according to the deformation position of the ice layer (8) to be observed and adjusting the shooting angle;
step 2: according to the design content of the test, injecting water into the test water pool 1, stopping injecting water after a preset water level is reached, and starting to freeze the ice layer (8); after the layer of ice (8) has a certain thickness, placing the soaked paper marking points (9) on the layer of ice (8) and freezing them together with the layer; setting the driving speed of a driving motor (43) in the driving pulley mechanism (4) according to the test design requirement, so that the test boat mold (3) moves on the test track at a specified speed; setting the driving speed and the rotating direction of a driving motor (121) in the transverse movement mechanism (12) to enable the test boat mold (3) to complete the translational or transverse reciprocating movement from one side to the other side along the screw (6); therefore, the test boat mold (3) can realize large-range three-dimensional movement in the vertical direction and the horizontal direction, and after the thickness of the layered ice (8) reaches a test preset value, the test starts;
and step 3: the test boat mold (3) performs large-range three-dimensional motion under ice according to a preset motion mode to cause the layered ice (8) to deform or break, and at the moment, the binocular displacement measurement system (7) monitors and records the motion displacement of the mark point (9) fixed above the layered ice (8) to obtain the deflection change of the layered ice (8) at the corresponding position; the collected data can be analyzed to obtain the best ice breaking effect of the test boat model (3) in which motion mode.
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| CN202111506332.3A CN114199508A (en) | 2021-12-10 | 2021-12-10 | Test device and method for researching multi-posture maneuvering ice breaking of submerged body under ice |
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| CN202111506332.3A CN114199508A (en) | 2021-12-10 | 2021-12-10 | Test device and method for researching multi-posture maneuvering ice breaking of submerged body under ice |
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