Underwater inclination test device of cross-medium ship and test method of underwater inclination test device

Abstract

The invention relates to the technical field of ships, and discloses an underwater inclination test device of a cross-medium ship, the underwater inclination test device is installed on the cross-medium ship, the underwater inclination test device comprises a container assembly, a first water pump assembly and a second water pump assembly, and the cross-medium ship is symmetrical about a vertical plane. The container assembly comprises a first container and a second container which are symmetrical about a vertical plane, and the first container and the second container are filled with liquid; the first water pump assembly is arranged in the first container, and the first water pump assembly is connected with the second container; the second water pump assembly is arranged in the second container and connected with the first container. Through work of the first water pump assembly and the second water pump assembly, the counter weights located on the two sides of the cross-medium ship are changed, so that the inclination test can be conveniently carried out on the cross-medium ship, the accuracy of the inclination test data of the cross-medium ship is improved, and meanwhile, the safety of the underwater inclination test of the cross-medium ship is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ships, in particular to a underwater inclination test device of a cross-medium ship and a test method thereof. BACKGROUND

[0002] The cross-medium ship is a ship that can sail on water and underwater, for example, a submarine. After the cross-medium ship is newly built, modified or repaired due to sea damage, underwater inclination test needs to be performed to determine the weight and center of gravity of the cross-medium ship, so that the design department can further optimize the design of the cross-medium ship.

[0003] At present, when the inclination test is performed, the crew moves the ballast on the ship to change the inclination angle of the ship, and records the inclination angle data of the ship in the inclination state, so as to calculate the weight and center of gravity of the ship.

[0004] However, the underwater inclination test is performed when most of the volume of the ship is underwater, at this time, the initial stability of the ship is dozens or even hundreds of percent of the water surface state, the movement of the crew and the ballast will greatly affect the floating state of the ship, on the one hand, it will affect the accuracy of the inclination angle data of the ship obtained by the test, on the other hand, it will cause the ship to be inclined at a large angle and touch the bottom. SUMMARY

[0005] The present application provides a underwater inclination test device of a cross-medium ship and a test method thereof, which is used to improve the accuracy of the inclination test data of the cross-medium ship, and improve the safety of the underwater inclination test of the cross-medium ship.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application includes: In a first aspect, the present application provides a underwater inclination test device of a cross-medium ship, which is installed on the cross-medium ship and includes a container assembly, a first water pump assembly and a second water pump assembly. A vertical plane is defined, which is parallel to the length direction of the cross-medium ship and the cross-medium ship is symmetrical about the vertical plane. The container assembly includes a first container and a second container, which are symmetrical about the vertical plane, and the first container and the second container are filled with liquid. The first water pump assembly is arranged in the first container and connected with the second container, and the first water pump assembly is used to deliver the liquid in the first container to the second container. The second water pump assembly is arranged in the second container and connected with the first container, and the second water pump assembly is used to deliver the liquid in the second container to the first container.

[0007] Further, the first container and the second container have the same structure.

[0008] Further, the container assembly includes a plurality of first containers and a plurality of second containers, and the number of the first containers is consistent with the number of the second containers.

[0009] Furthermore, multiple first containers are arranged along the length of the medium vessel; multiple second containers are arranged along the length of the medium vessel.

[0010] Furthermore, the first container includes a mounting frame and a water tank, the water tank being mounted on the transmedia vessel via the mounting frame.

[0011] Furthermore, the first water pump assembly and the second water pump assembly have the same structure, both including a delivery pump and a delivery pipeline, with the delivery pipeline connected to the delivery pump.

[0012] Secondly, embodiments of this application provide a method for underwater tilting tests of a cross-medium vessel, comprising the following steps. S1, The underwater tilting test device is fixed to the transmedium vessel; S2, Tow the cross-medium vessel with the fixed underwater tilting test device to the dry dock area, and submerge the cross-medium vessel to the test depth; S3 controls the operation of the first and second water pump assemblies to put the cross-medium vessel in different tilt states and records the tilt data; S4, the test ends, the cross-medium vessel rises to the surface, and the cross-medium vessel is recovered.

[0013] Furthermore, step S2 also includes the following steps: S2.1, tow the cross-medium vessel into the sump pit area; S2.2, Connect the cross-medium vessel to the dock piles on both sides of the sump pit by means of cables; S2.3, to dive the cross-medium vessel to the test depth.

[0014] Furthermore, in step S3, the tilting data of the cross-medium vessel is recorded using an inertial navigation system.

[0015] By operating the first and second water pump assemblies, the counterweights located on both sides of the transmedium vessel are altered, facilitating tilting tests on the transmedium vessel, improving the accuracy of tilting test data, and enhancing the safety of underwater tilting tests on the transmedium vessel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the underwater tilting test device provided in this application installed on a transmedium vessel.

[0018] Figure 2 yes Figure 1 A cross-sectional view of the underwater tilting test apparatus shown.

[0019] Figure 3 yes Figure 1 The diagram shows a tilting test of a cross-medium vessel.

[0020] Figure 4 This is a flowchart of the underwater tilting test method for cross-medium vessels provided in this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Transmedia vessel; 2. Container assembly; 201. First container; 2011. Mounting frame; 2012. Water tank; 202. Second container; 3. Vertical plane; 4. First pump assembly; 401. Transfer pump; 402. Transfer pipeline; 5. Second pump assembly; 6. Dock pit; 7. Cable. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] like Figure 1 and Figure 2 As shown, in one implementation, this application provides an underwater tilting test device for a cross-medium vessel. The underwater tilting test device is installed on the cross-medium vessel 1. By changing the weight on both sides of the cross-medium vessel 1 through the underwater tilting test device, the cross-medium vessel 1 tilts, thereby conducting a tilting test.

[0024] Specifically, the underwater tilting test device includes a container assembly 2, a first water pump assembly 4, and a second water pump assembly 5. The container assembly 2 is used to fill the load liquid, and the first water pump assembly 4 and the second water pump assembly 5 are used to drive the liquid flow in the container assembly 2, thereby changing the weight on both sides of the transmedium vessel 1 and realizing the tilting test of the transmedium vessel 1.

[0025] Define a vertical plane 3, which is parallel to the length direction of the transmedium vessel 1. The transmedium vessel 1 is symmetrical about the vertical plane 3, that is, the vertical plane 3 completely bisects the hull of the transmedium vessel 1.

[0026] The container assembly 2 includes a first container 201 and a second container 202. The first container 201 and the second container 202 are respectively placed on the transmedium vessel 1, and the first container 201 and the second container 202 are symmetrical about the vertical plane 3 to avoid the positional deviation of the first container 201 and the second container 202 from affecting the accuracy of the tilt test data.

[0027] Both the first container 201 and the second container 202 are filled with liquid. By changing the amount of liquid in the first container 201 and the second container 202, the weight of the first container 201 and the second container 202 is changed, thereby causing the transmedium vessel 1 to tilt.

[0028] The first water pump assembly 4 is placed inside the first container 201 and is connected to the second container 202. The first water pump assembly 4 transports the liquid in the first container 201 to the second container 202.

[0029] The second water pump assembly 5 is placed inside the second container 202 and is connected to the first container 201. The liquid in the second container 202 is transported to the first container 201 through the second water pump assembly 5.

[0030] By operating the first water pump assembly 4 and the second water pump assembly 5, the counterweights located on both sides of the transmedium vessel 1 are changed, so as to facilitate the tilting test of the transmedium vessel 1, improve the accuracy of the tilting test data of the transmedium vessel 1, and at the same time improve the safety of the underwater tilting test of the transmedium vessel 1.

[0031] As one implementation method, the first container 201 and the second container 202 have the same structure.

[0032] Specifically, the capacity of the first container 201 is the same as that of the second container 202, and the weight of the first container 201 is the same as that of the second container 202.

[0033] It should be noted that when there is a discrepancy between the weight of the first container 201 and the weight of the second container 202, the weight discrepancy between the first container 201 and the second container 202 is eliminated by changing the weight of the first container 201 and the amount of liquid in the second container 202. Specifically, when the weight of the first container 201 is greater than the weight of the second container 202, the weight of the liquid filled in the second container 202 is greater than the weight of the liquid filled in the first container, thereby ensuring that the sum of the weight of the first container 201 and the weight of the liquid inside it is consistent with the sum of the weight of the second container 202 and the weight of the liquid inside it.

[0034] In one implementation, the capacity of the first container 201 and the volume of the second container 202 are both L, wherein the sum of the liquid volume filled in the first container 201 and the liquid volume filled in the second container 202 is less than or equal to L. This prevents liquid from overflowing from the first container 201 or the second container 202 when the first water pump assembly 4 and the second water pump assembly 5 are operating, further ensuring the accuracy of the tilting test.

[0035] As one implementation, the first container 201 and the second container 202 are installed inside the cabin of the transmedium vessel 1 to prevent the first container 201 and the second container 202 from coming into contact with the water outside the transmedium vessel 1 during the tilting process, thereby improving the accuracy of the tilting test.

[0036] As another implementation, the first container 201 and the second container 202 are installed on the deck of the transmedium vessel 1, which facilitates the disassembly and assembly of the first container 201 and the second container 202 and improves the test efficiency of the tilting test.

[0037] As one implementation method, there is a certain gap between the first container 201 and the second container 202 to improve the tilting sensitivity of the transmedium vessel 1.

[0038] Optionally, the first container 201 and the second container 202 are located at the edge of the transmedia vessel 1, respectively.

[0039] As one implementation, the container component 2 includes multiple first containers 201 and multiple second containers 202. The number of first containers 201 is the same as the number of second containers 202, ensuring that the first containers 201 and the second containers 202 correspond one-to-one and are symmetrical about the vertical plane 3.

[0040] Multiple first containers 201 are arranged along the length of the medium vessel 1; multiple second containers 202 are arranged along the length of the medium vessel 1, so as to ensure that the first containers 201 and the second containers 202 correspond one-to-one and are symmetrical about the vertical plane 3.

[0041] In one implementation, the first container 201 includes a mounting frame 2011 and a water tank 2012, the water tank 2012 being mounted on the transmedium vessel 1 via the mounting frame 2011.

[0042] Specifically, the water tank 2012 is welded onto the mounting frame 2011, and the bottom of the mounting frame 2011 is fixed to the cabin or deck of the cross-medium vessel 1 by welding, bolting, or other means.

[0043] Similarly, the second container 202 also includes a mounting bracket and a water tank.

[0044] As one implementation method, the first water pump assembly 4 and the second water pump assembly 5 have the same structure and weight.

[0045] Specifically, the first water pump assembly 4 includes a delivery pump 401 and a delivery pipeline 402. The delivery pump 401 is installed in the first container 201, the delivery pipeline 402 is connected to the delivery pump 401, and the delivery pipeline 402 extends into the second container 202. The liquid in the first container 201 is delivered to the second container 202 by the delivery pump 401, thereby conducting an inclination test on the transmedium vessel 1.

[0046] Similarly, the second pump assembly 5 includes a delivery pump and a delivery pipeline. The delivery pump is installed in the second container 202, the delivery pipeline is connected to the delivery pump, and the delivery pipeline extends into the first container 201. The delivery pump delivers the liquid in the second container 202 to the first container 201, thereby conducting an inclination test on the transmedium vessel 1.

[0047] It should be noted that the first water pump assembly 4 is connected to the first container 201 and the second container 202 stacked about the vertical plane 3 respectively, and the second water pump assembly 5 is connected to the first container 201 and the second container 202 stacked about the vertical plane 3 respectively, to ensure that the medium boat plate 1 can be tilted in one direction.

[0048] As one implementation, the delivery pump 401 is a remotely controllable delivery pump 401.

[0049] As one implementation, both the first water pump assembly 4 and the second water pump assembly 5 have external pipelines that extend to the outside of the ship, through which water outside the ship is pumped into the first container 201 and the second container 202.

[0050] It should be noted that the external pipeline remained closed throughout the tilt test.

[0051] like Figure 3 and Figure 4 As shown, as one implementation method, this application also provides another underwater tilting test method for cross-medium vessels, including the following steps: S1, fix the underwater tilting test device to the transmedium vessel 1.

[0052] Specifically, the first container 201 is installed at the left front and left rear of the transmedia vessel 1, and the second container 202 is installed at the right front and right rear of the transmedia vessel 1, and liquid is filled into the first container 201 and the second container 202.

[0053] A monitoring system was installed on the transmedium vessel 1 to observe the operation of the underwater tilting test device and to debug the inertial navigation system of the transmedium vessel 1 in preparation for recording the tilting data of the transmedium vessel 1.

[0054] S2, the cross-medium vessel 1 with the fixed underwater tilting test device is towed to the area of ​​the sump pit 6, and the cross-medium vessel 1 is submerged to the test depth.

[0055] Before the test begins, the transmedium vessel 1 and the floating dock to be tested are moved to a suitable water area with a depth that ensures that the transmedium vessel 1 can sink to the deck position.

[0056] The floating dock is then lowered to a depth to which the cross-medium vessel 1 to be tested can tilt freely.

[0057] The transmedium vessel 1 to be tested was separated from the floating dock by a tugboat, so that the transmedium vessel 1 was moved to the area of ​​the sump pit 6 where the floating dock is located.

[0058] The cross-medium vessel 1 is connected to the dock piles on both sides of the sump pit 6 by a cable 7 of appropriate length, so that the cross-medium vessel 1 to be tested and the edge of the sump pit 6 are kept at a certain safe distance, preventing the cross-medium vessel 1 to be tested from colliding with the sump pit 6, ensuring the safety of the test, and further reducing the requirements for the environmental water flow.

[0059] The cross-medium vessel 1 to be tested was then submerged to the test depth.

[0060] S3 controls the operation of the first water pump assembly 4 and the second water pump assembly 5 to make the cross-medium vessel 1 in different tilt states. The tilt state of the cross-medium vessel 1 is monitored and recorded, and the tilt data of the cross-medium vessel 1 is recorded through the inertial navigation system to complete the tilt test.

[0061] S4, the test ends, the cross-medium vessel 1 floats up, the tugboat moves the cross-medium vessel 1 to the floating dock, the floating dock floats up, thus separating the cross-medium vessel 1 from the water surface, and finally the cross-medium vessel 1 and the floating dock are recovered to the dock.

[0062] As one implementation method, in step S3, the inertial navigation system is the navigation system built into the cross-medium ship 1.

[0063] It should be noted that an inertial navigation system obtains information such as velocity, yaw angle, and position in the navigation coordinate system by measuring the acceleration of the carrier in the inertial reference frame, integrating it over time, and transforming it to the navigation coordinate system. This application does not involve any improvement to the inertial navigation system.

[0064] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0065] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An underwater tilting test device for a transmedium vessel, the underwater tilting test device being installed on the transmedium vessel (1), characterized in that, include: The container assembly (2) defines a vertical plane (3) that is parallel to the length direction of the transmedium vessel (1). The transmedium vessel (1) is symmetrical about the vertical plane (3). The container assembly (2) includes a first container (201) and a second container (202). The first container (201) and the second container (202) are symmetrical about the vertical plane (3). Both the first container (201) and the second container (202) are filled with liquid. The first water pump assembly (4) is placed inside the first container (201) and connected to the second container (202). The first water pump assembly (4) transports the liquid in the first container (201) to the second container (202). The second water pump assembly (5) is placed inside the second container (202) and connected to the first container (201). The liquid in the second container (202) is transported to the first container (201) through the second water pump assembly (5).

2. The underwater tilting test device for a cross-medium ship according to claim 1, characterized in that, The first container (201) and the second container (202) have the same structure.

3. The underwater tilting test device for a cross-medium ship according to claim 2, characterized in that, The container assembly (2) includes a plurality of first containers (201) and a plurality of second containers (202), wherein the number of the first containers (201) is the same as the number of the second containers (202).

4. The underwater tilting test device for a cross-medium ship according to claim 2, characterized in that, Multiple first containers (201) are arranged along the length of the transmedia vessel (1); Multiple second containers (202) are arranged along the length of the transmedia vessel (1).

5. The underwater tilting test device for a cross-medium ship according to claim 1, characterized in that, The first container (201) includes a mounting bracket (2011) and a water tank (2012), the water tank (2012) being mounted to the transmedium vessel (1) via the mounting bracket (2011).

6. The underwater tilting test device for a cross-medium ship according to claim 1, characterized in that, The first water pump assembly (4) and the second water pump assembly (5) have the same structure, both including a delivery pump (401) and a delivery pipeline (402), and the delivery pipeline (402) is connected to the delivery pump (401).

7. A method for underwater tilting test of a transmedium vessel according to any one of claims 1-6, characterized in that, Includes the following steps, S1, The underwater tilting test device is fixed to the transmedium vessel (1). S2, the cross-medium vessel (1) with the fixed underwater tilting test device is towed to the area of ​​the dock pit (6) and the cross-medium vessel (1) is submerged to the test depth; S3, control the operation of the first water pump assembly (4) and the second water pump assembly (5) to make the cross-medium vessel (1) in different tilt states and record the tilt data; S4, the test ends, the cross-medium vessel (1) floats up and is recovered.

8. The underwater tilting test method for a transmedium vessel according to claim 7, characterized in that, Step S2 also Includes the following steps, S2.1, tow the cross-medium vessel (1) into the dock pit (6); S2.2, the cross-medium vessel (1) is connected to the dock piles on both sides of the sump pit (6) by a cable (7); S2.3, the cross-medium vessel (1) will be submerged to the test depth.

9. The underwater tilting test method for a transmedium vessel according to claim 7, characterized in that, In step S3, the tilt data of the cross-medium vessel (1) is recorded by the inertial navigation system.

Images