A controlled boost delivery method adapted for sea navigation

Abstract

A controlled boost delivery method adapted for sea navigation, which relates to the field of sea delivery. The controlled boost delivery method adapted for sea navigation includes the following steps: The delivery object is obliquely delivered into the water in a direction opposite to the navigation direction of the mobile platform at an initial delivery speed, and the magnitude of the horizontal component of the initial delivery speed of the delivery object is equal to the magnitude of the navigation speed of the mobile platform. The controlled boost delivery method adapted for sea navigation provided by this application can achieve batch, efficient, and safe delivery of sea target delivery objects, and has the advantages of low noise, good concealment, and high safety.

Description

Technical Field

[0001] The present application relates to the field of marine delivery, and more particularly, to a controlled boost delivery method adapted for marine navigation. Background Art

[0002] At present, delivery under a navigable speed at home and abroad is mostly seen in airborne UAV delivery, underwater launch delivery, etc. There are problems such as low efficiency and poor safety in the marine surface delivery of target delivery objects: First, at present, the marine surface delivery at home and abroad mainly uses methods such as zero-speed quasi-static hanging. It faces problems such as low delivery efficiency of manual hanging operations, only having limited lifting and anti-collision protection measures, the peripheral auxiliary facilities for supporting and positioning the target delivery object are complicated, and it is difficult to avoid collisions with the platform main body due to the sway of marine operations; it is difficult to achieve large-batch and high-efficiency delivery on the marine surface under a navigable speed; Second, the safety of the current marine surface delivery operations at home and abroad is poor. It is visible in the optical field of view and there is often an abnormal sound field. The field of view is easy to be detected and monitored, and there is a lack of noise masking measures. It often faces the problem that the impact when entering the water is large and the abnormal sound spectrum is easy to be detected; Third, since the moon pool of the surface platform is usually designed in a vertical form, in addition to being unable to achieve delivery at a navigable speed, the operations inside the moon pool / cabin of the platform are also very limited. Summary of the Invention

[0003] The purpose of the present application is to provide a controlled boost delivery method adapted for marine navigation, which can achieve batch, efficient, and safe delivery of marine target delivery objects, and has the advantages of low noise, good concealment, and high safety.

[0004] The embodiments of the present application are implemented as follows:

[0005] The embodiments of the present application provide a controlled boost delivery method adapted for marine navigation, including the following steps: Inclining the delivery object into the water in a direction opposite to the navigation direction of the mobile platform at an initial delivery speed, and making the magnitude of the horizontal component of the initial delivery speed of the delivery object equal to the magnitude of the navigation speed of the mobile platform.

[0006] In some alternative embodiments, a moon pool arranged at an angle of 20 - 70 degrees with the water surface is provided on the mobile platform, and the delivery object is delivered into the water along the moon pool.

[0007] In some alternative embodiments, before the delivery object is delivered into the water along the moon pool, the bottom end of the delivery object is extended into the water.

[0008] In some alternative embodiments, when the delivery object is delivered into the water along the moon pool, a track provided on the inner wall of the moon pool is used to limit the position of the delivery object.

[0009] In some alternative embodiments, the moonpool is configured to be rotatable relative to the mobile platform to adjust the angle between the moonpool and the water surface.

[0010] In some alternative embodiments, when the navigation speed of the mobile platform increases or decreases, the moonpool is rotated relative to the mobile platform to decrease or increase the angle between the moonpool and the water surface.

[0011] In some alternative embodiments, the delivery object moves at an initial delivery speed from the start of movement until it detaches from the mobile platform.

[0012] The beneficial effects of this application are as follows: The controlled boost delivery method adapted for sea navigation provided by this application includes the following steps: Incliningly delivering a delivery object into the water in a direction opposite to the navigation direction of the mobile platform at an initial delivery speed, and making the magnitude of the horizontal component of the initial delivery speed of the delivery object equal to the magnitude of the navigation speed of the mobile platform. The controlled boost delivery method adapted for sea navigation provided by this application can achieve batch, efficient, and safe delivery of sea target delivery objects, and has the advantages of low noise, good concealment, and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of this application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0014] Figure 1 Schematic diagram of a controlled boost delivery method adapted for sea navigation provided by an embodiment of this application;

[0015] Figure 2 Schematic diagram of a controlled boost delivery method adapted for sea navigation provided by another embodiment of this application.

[0016] In the figure: 100, mobile platform; 110, moonpool; 200, delivery object. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Usually, the components of the embodiments of this application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0019] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0020] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0022] In the description of the present application, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0024] The features and performance of the controlled boost delivery method adapted for sea navigation in this application will be further described in detail with reference to the embodiments below.

[0025] As Figure 1 shown, the embodiment of this application provides a controlled boost delivery method adapted for sea navigation, including the following steps: delivering the delivery object 200 into the water along the moonpool 110 provided on the mobile platform 100 at an initial delivery speed, and making the magnitude of the horizontal component of the initial delivery speed of the delivery object 200 equal to the magnitude of the navigation speed of the mobile platform 100; wherein, the moonpool 110 extends downward from top to bottom in a direction opposite to the navigation direction of the mobile platform 100, and the moonpool 110 is arranged at an angle of 45 degrees with the water surface, and delivering the delivery object 200 into the water in a direction opposite to the navigation direction of the mobile platform 100; before the delivery object 200 arranged in the moonpool 110 is delivered into the water, making the bottom end of the delivery object 200 extend into the water, and using two tracks provided on the inner wall of the moonpool 110 to limit the positions of both sides of the delivery object 200. The delivery object 200 moves at the initial delivery speed from the start of movement until it detaches from the mobile platform 100.

[0026] The controlled boost delivery method adapted for maritime navigation provided by the embodiments of the present application controls the controlled boost force of the delivery object 200 according to the speed change of the mobile platform 100 during delivery, and delivers the delivery object 200 into the water along the moonpool 110 provided on the mobile platform 100 at the initial delivery speed. Based on the speed, target object mass, water entry resistance, etc., it calculates and controls the boost force in real time. According to the calculated boost force and the real-time feedback of the thrust sensor, it completes the application of the variable thrust that changes with displacement, so that the magnitude of the horizontal component of the initial delivery speed of the delivery object 200 is equal to the magnitude of the navigation speed of the mobile platform 100. It can utilize the control of the horizontal component of the water entry speed of the target delivery object 200 to adapt it to the navigation speed of the mobile platform 100, minimize the differential velocity of the end of the delivery object 200 released by boost into the water relative to the external water flow, and mask the delivery noise of the delivery object 200 in the navigation noise, thereby effectively reducing the delivery noise. At the same time, it can also achieve the rapid diving of the target delivery object 200 through the vertical component of the boost force, gravity, induced velocity effect, etc., effectively avoiding possible collisions and interferences between the delivery object 200 and the mobile platform 100, thus completing the controlled, safe and efficient delivery in the state of having a navigation speed, and carrying out the delivery operation during the navigation of the mobile platform 100 with a navigation speed, so that the delivery noise is masked by the navigation noise of the mobile platform 100, further improving the delivery safety.

[0027] Among them, the moonpool 110 is arranged at an angle of 20 - 70 degrees with the water surface, which can ensure that the delivery object 200 is delivered into the water at an appropriate angle and speed to ensure that the horizontal component of the initial delivery speed of the delivery object 200 is adapted to the navigation speed of the mobile platform 100. And compared with the conventional vertical moonpool, the moonpool 110 arranged at an angle of 20 - 70 degrees with the water surface also has advantages in reverse recovery. The inclined side wall of the moonpool 110 is more conducive to towing the delivery object 200 back onto the ship from the water; before the delivery object 200 is arranged in the moonpool 110 and delivered into the water, the bottom end of the delivery object 200 is extended into the water, which can avoid the impact of the delivery object 200 on the water surface during delivery, reducing the delivery speed and generating delivery noise, effectively reducing the control difficulty of the delivery speed of the delivery object 200, and reducing the possible delivery noise during delivery; when the delivery object 200 is delivered into the water, two tracks provided on the inner wall of the moonpool 110 are used to limit the positions on both sides of the delivery object 200, which can avoid the deviation of the delivery object 200 caused by the vibration during the delivery process, thereby improving the delivery stability of the delivery object 200 and ensuring that the horizontal component of the initial delivery speed of the delivery object 200 is adapted to the navigation speed of the mobile platform 100.

[0028] Such as Figure 2As shown, in another alternative embodiment, the moonpool 110 is a hollow tube structure and is hinged to the mobile platform 100. The moonpool 110 can rotate relative to the mobile platform 100 around the hinge to adjust the angle between the moonpool 110 and the water surface. When the sailing speed of the mobile platform 100 increases or decreases, the moonpool 110 can be rotated relative to the mobile platform 100 to decrease or increase the angle between the moonpool 110 and the water surface. In this way, when the speed of the mobile platform 100 is relatively high, the moonpool 110 is rotated to decrease the angle between the moonpool 110 and the water surface. At this time, the delivery object 200 is delivered into the water along the moonpool 110. The component of the initial delivery speed of the delivery object 200 in the horizontal direction is much larger than the component in the vertical direction, so as to ensure that when the delivery object 200 is delivered at the smallest possible speed, the component of the initial delivery speed of the delivery object 200 in the horizontal direction is equal to the speed of the mobile platform 100, ensuring the rapid delivery of the delivery object 200 while reducing the delivery noise; when the speed of the mobile platform 100 is relatively low, the moonpool 110 is rotated to increase the angle between the moonpool 110 and the water surface. At this time, the delivery object 200 is delivered into the water along the moonpool 110. The component of the initial delivery speed of the delivery object 200 in the vertical direction is much larger than the component in the horizontal direction, so as to ensure that the delivery object 200 is delivered to a certain depth below the water surface as quickly as possible, avoiding damage caused by the collision between the delivery object 200 and the bottom of the mobile platform 100.

[0029] The controlled boost delivery method adapted for sea navigation provided by the embodiments of the present application is beneficial to the batch and efficient delivery of sea target delivery objects, underwater delivery under the ship's navigation state, deep-sea operation delivery, and low-noise and non-impact delivery, and can realize the batch, efficient, safe, and concealed surface delivery operation of target delivery objects.

[0030] The mobile platform 100 described in this embodiment can be a mobile hull or a marine mobile platform.

[0031] The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

Claims

1. A controlled boost delivery method adapted for sea navigation, characterized in that The method includes the following steps: On the mobile platform, a moonpool is arranged at an angle of 20-70 degrees with the water surface, and the moonpool is configured to be rotatable relative to the mobile platform to adjust the angle between the moonpool and the water surface; a delivery object is obliquely delivered into the water along the moonpool and in a direction opposite to the navigation direction of the mobile platform at an initial delivery speed. When the navigation speed of the mobile platform increases or decreases, the moonpool is rotated relative to the mobile platform to decrease or increase the angle between the moonpool and the water surface, and the magnitude of the horizontal component of the initial delivery speed of the delivery object is made equal to the magnitude of the navigation speed of the mobile platform.

2. The controlled boost delivery method adapted for sea navigation according to claim 1, wherein, Before the delivery object is delivered into the water along the moonpool, the bottom end of the delivery object is inserted into the water.

3. The controlled boost delivery method adapted for sea navigation according to claim 1, wherein When the delivery object is delivered into the water along the moonpool, a track provided on the inner wall of the moonpool is used to define the position of the delivery object.

4. The controlled boost delivery method adapted for sea navigation according to claim 1, characterized in that, The delivery object moves at the initial delivery speed from the start of movement until it detaches from the mobile platform.

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