Underwater unmanned vehicle co-enveloping shell plate floating body structure and manufacturing method
By using a co-enveloping shell floating structure made of carbon fiber composite materials on the underwater unmanned vehicle, and covering the inner and outer surfaces with glass fiber insulation layers, the problem of excessive load weight is solved, high load capacity and improved stability are achieved, and the stability and controllability requirements of the underwater unmanned vehicle are met.
Patent Information
- Application Number
- CN202511042887.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-10-17
AI Technical Summary
Existing underwater unmanned vehicles, when carrying extremely heavy and high-weight-to-buoyancy loads, have problems such as excessive envelope volume, increased water resistance, difficulty in motion control, reduced range, and reduced speed. In addition, carbon fiber composite materials need to be insulated when used underwater to avoid electrochemical corrosion.
The co-enveloping shell floating structure is made of carbon fiber composite materials, and the inner and outer surfaces are covered with glass fiber insulation layers. It is solidified into an integrated floating structure through co-envelopment. It is designed to be completely co-enveloped with the load, providing outfitting fixation and protection, and combined with buoyancy materials to improve load capacity and stability.
It achieves the maximum load capacity within a limited envelope space, improves the stability and motion controllability of the underwater unmanned vehicle, reduces structural deformation, enhances the fixation and protection of the load, meets high load requirements and improves the utilization of the envelope space.
Smart Images
Figure CN120793031A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of underwater unmanned vehicle carrier structure, and particularly relates to a common envelope shell plate floating body structure of an underwater unmanned vehicle and a manufacturing method. BACKGROUND
[0002] With the complication and specialization of work requirements such as marine resource survey, marine ecological environment monitoring and marine situation collection, the load carried by the underwater unmanned vehicle platform is more specialized, refined and diversified, so that the load capacity requirement of the underwater unmanned vehicle platform carrying load is also higher and higher.
[0003] For example, the weight and weight-float ratio of some low-frequency detection function loads are relatively large. Such large loads have higher requirements for the load capacity of the underwater unmanned vehicle carrier structure, which makes the underwater unmanned vehicle carrier structure optimize the design of the carrier structure under the double consideration of the overall performance and load capacity of the platform.
[0004] Currently, the problem of carrying such large loads is solved by increasing the envelope volume of the underwater unmanned vehicle to meet it or changing the envelope section of the underwater unmanned vehicle to a square shape to improve the utilization rate of the envelope volume. However, this processing method changes the envelope volume or envelope section of the vehicle, resulting in some overall platform shortcomings such as large underwater unmanned vehicle envelope, large water resistance, difficult motion control, reduced voyage, and reduced speed. If the load has a weight and weight-float ratio that is too large, these shortcomings are particularly prominent and cannot be ignored.
[0005] With the improvement of the load capacity requirement of the underwater unmanned vehicle carrying load, the outstanding lightweight and high-strength characteristics of carbon fiber composite materials have been valued in the application of underwater unmanned vehicle carrier platform structure. Carbon fiber composite materials can provide greater load capacity under the same strength carrier structure platform, and carbon fiber composite materials have more advantages in underwater environment application:
[0006] 1. The specific strength and specific stiffness of carbon fiber composite materials far exceed most metals, which means that the same structure can significantly reduce weight, improve load capacity, reduce propulsion energy consumption, and increase voyage when used underwater;
[0007] 2. Compared with metal materials, carbon fiber composite materials exhibit better fatigue resistance when subjected to alternating loads (such as wave loads, propeller vibrations, and periodic pressure changes), which is very important for long-term underwater use environment, can prolong the service life, and reduce maintenance requirements;
[0008] 3. The thermal expansion coefficient of carbon fiber composite material is generally much lower than that of metal, and its size changes less when it experiences different water temperature layers (especially in deep sea low temperature environment) or internal equipment heating, which helps to maintain the dimensional stability and sealing of the structure and reduce thermal stress;
[0009] 4. Carbon fiber composite material itself has extremely strong inertness and is almost not corroded by common underwater chemical media such as seawater, salt spray and oil stains. This avoids the problems of rust and pitting corrosion commonly seen in metal materials;
[0010] 5. Carbon fiber composite material itself is non-magnetic, which has a significant advantage for underwater equipment that needs to avoid magnetic detection or needs high-precision magnetic measurement;
[0011] 6. Carbon fiber composite material can be precisely designed to have target performance by changing the fiber laying direction, layer number, resin type and hybrid with other materials (such as Kevlar and glass fiber), and its strong designability feature realizes the maximization of structural efficiency.
[0012] Of course, the electrochemical corrosion will occur when carbon fiber composite material directly contacts with metal due to its conductive property, so strict insulation measures (such as gaskets, coatings, isolation design) or compatible materials (such as titanium alloy) must be taken and surface protection must be done when carbon fiber composite material is used underwater. SUMMARY
[0013] The purpose of the present application is to provide an underwater unmanned vehicle common envelope shell plate floating body structure and manufacturing method, which can solve the load capacity of the existing underwater unmanned vehicle carrying super large self weight, high weight floating specific load, maximize the effective utilization rate of the envelope space of the underwater unmanned vehicle and improve the stability of the underwater unmanned vehicle.
[0014] The purpose of the present application is achieved by the following technical solutions:
[0015] An underwater unmanned vehicle common envelope shell plate floating body structure, comprising: a body upper shell plate and a buoyancy material structure, the body upper shell plate is connected with the buoyancy material structure, the body upper shell plate is located on an underwater unmanned vehicle carrier structure, the body upper shell plate and the buoyancy material structure are connected with a carrier main structure, and a load is installed between the buoyancy material structure and the carrier main structure.
[0016] Further, the body upper shell plate and the buoyancy material structure are solidified into a floating body structure after being co-enclosed.
[0017] Further, the material of the body upper shell plate is carbon fiber composite material.
[0018] Further, the carbon fiber composite material of the body upper shell plate is coated with a glass fiber surface layer as an insulating layer on both the inner and outer surfaces, ensuring complete insulation of the carbon fiber carrier structure and the load contact surface.
[0019] Further, the body upper shell plate and the buoyancy material structure are co-enclosed and solidified into an integrated floating body structure, and the inner surface is completely co-enclosed with the load.
[0020] The application can also include:
[0021] A manufacturing method of the co-enclosed shell plate floating body structure of the underwater unmanned vehicle described above, the method comprising the following steps:
[0022] Step 1: Place the body upper shell plate negative mold on a steel platform, and perform mold surface treatment, release cloth layering, resin glue channel laying, and other preparation work according to the carbon fiber shell plate forming layering sequence design requirements;
[0023] Step 2: Layer the carbon fiber cloth layer and the surface insulating layer on the surface of the body upper shell plate negative mold on the steel platform according to the layering process design requirements, and then perform the mold closing work of the body upper shell plate positive mold according to the mold closing process design requirements;
[0024] Step 3: Perform air tightness check after mold closing;
[0025] Step 4: Perform resin glue flow guiding work of the body upper shell plate, and perform body upper shell plate forming and solidification work;
[0026] Step 5: Perform the release work of the body upper shell plate positive mold after the solidification and forming of the body upper shell plate, and perform surface treatment on the bonding surface area of the buoyancy material and the body upper shell plate;
[0027] Step 6: Perform the bonding work of the buoyancy material which is co-enclosed with the body upper shell plate and the load respectively, and ensure that the distance between the buoyancy material and the body upper shell plate edge meets the design size requirements;
[0028] Step 7: Perform post-solidification work on the bonded body upper shell plate and buoyancy material;
[0029] Step 8: Perform the release work of the body upper shell plate negative mold after the post-solidification and forming of the co-enclosed shell plate floating body structure, and perform surface treatment on the co-enclosed shell plate floating body structure.
[0030] The application has the following advantages:
[0031] The application provides a more optimal solution for the load capacity requirements of the load with super large dead weight and high weight-to-float ratio, and provides the maximum load capacity in the limited envelope space of the underwater unmanned vehicle.
[0032] The present application is a co-enveloping shell plate floating body structure, which is fully co-enveloped with the load, provides effective outfitting fixing capacity for the load, and protects the load in all directions; the co-enveloping shell plate floating body structure is a structure in which the carbon fiber material body shell plate is co-enveloped with the buoyancy material and solidified into one body, which meets the structural strength of the underwater unmanned vehicle carrier structure, improves the rigidity of the body shell plate, and reduces the deformation amount of the body shell plate.
[0033] The present application is a co-enveloping shell plate floating body structure, which is fully co-enveloped with the load, provides effective outfitting fixing capacity for the load, and protects the load in all directions; the co-enveloping shell plate floating body structure is a structure in which the carbon fiber material body shell plate is co-enveloped with the buoyancy material and solidified into one body, which meets the structural strength of the underwater unmanned vehicle carrier structure, improves the rigidity of the body shell plate, and reduces the deformation amount of the body shell plate.
[0034] The present application is a co-enveloping shell plate floating body structure, which is fully co-enveloped with the load, provides effective outfitting fixing capacity for the load, and protects the load in all directions; the co-enveloping shell plate floating body structure is a structure in which the carbon fiber material body shell plate is co-enveloped with the buoyancy material and solidified into one body, which meets the structural strength of the underwater unmanned vehicle carrier structure, improves the rigidity of the body shell plate, and reduces the deformation amount of the body shell plate.
[0035] The present application is a co-enveloping shell plate floating body structure, which is fully co-enveloped with the load, provides effective outfitting fixing capacity for the load, and protects the load in all directions; the co-enveloping shell plate floating body structure is a structure in which the carbon fiber material body shell plate is co-enveloped with the buoyancy material and solidified into one body, which meets the structural strength of the underwater unmanned vehicle carrier structure, improves the rigidity of the body shell plate, and reduces the deformation amount of the body shell plate. BRIEF DESCRIPTION OF DRAWINGS
[0036] FIG. 1 is a structural schematic diagram of the present application; Figure 1
[0037] FIG. 2 is a manufacturing process schematic diagram of the present application; Figure 2 Figure 1
[0038] FIG. 3 is a manufacturing process schematic diagram of the present application; Figure 3 Figure 1
[0039] FIG. 4 is a manufacturing process sectional view of the present application; Figure 4
[0040] FIG. 5 is a manufacturing process sectional view of the present application; Figure 5 Figure 3
[0041] In the figure: 1, the body upper shell plate; 2, the buoyancy material; 3, the load; 4, the carrier main structure; 5, the body upper shell plate negative mold; 6, the carbon fiber cloth layer; 7, the body upper shell plate positive mold. DETAILED DESCRIPTION
[0042] The application is further described below in combination with the drawings.
[0043] The application provides a kind of underwater unmanned vehicle common envelope shell plate float structure, as shown in the attached Figures 1-5 As shown in the figure, it is applied to underwater unmanned vehicle (UUV), including: body upper shell plate 1, buoyancy material structure 2, the body upper shell plate 1 is connected with buoyancy material structure 2, the body upper shell plate 1 is located on the carrier structure of underwater unmanned vehicle, the body upper shell plate 1, buoyancy material structure 2 are connected with carrier main structure 4, load 3 is installed between the buoyancy material structure 2 and the carrier main structure 4.
[0044] The body upper shell plate 1, buoyancy material structure 2 are the float structure of common envelope after solidification into one, which are connected by solidification bonding process, and finally form an integral shell plate float structure.
[0045] The carbon fiber composite material inner and outer surfaces of the body upper shell plate 1 are coated with a glass fiber surface layer as an insulating layer, ensuring complete insulation of the carbon fiber carrier structure and the load contact surface.
[0046] The inner surface of the body upper shell plate 1, buoyancy material structure 2, which are the float structure of common envelope after solidification into one, is completely co-enclosed with the load 3; the common envelope shell plate float structure provides a fitting interface and omnidirectional protection for the load 3 carried by the underwater unmanned vehicle.
[0047] In this embodiment, the body upper shell plate 1 is part of the carrier structure of the underwater unmanned vehicle and bears the carrier strength support, underwater navigation flow guide of the vehicle, and noise reduction function; the common envelope shell plate float structure is effectively connected with the carrier main structure 4 to ensure the integrity and overall strength requirements of the carrier structure of the underwater unmanned vehicle.
[0048] In this embodiment, the common envelope shell plate float structure is located on the upper part of the underwater unmanned vehicle, and the buoyancy material 2 designed with common envelope provides the maximum positive buoyancy for the underwater unmanned vehicle to the maximum extent, increases the height of the center of buoyancy, and improves the height of the center of stability.
[0049] In this embodiment, the common envelope shell plate float structure, which is formed into one by post-curing the body upper shell plate 1 and the buoyancy material 2 designed with common envelope, not only provides the structural strength of the carrier structure of the underwater unmanned vehicle, but also improves the stiffness of the body upper shell plate 1 and reduces its deformation.
[0050] Preferably, the buoyancy material 2 and the body upper shell plate 1 are connected by bonding, and the post-curing process can also be screwing, riveting, one-piece forming, etc.
[0051] The material of the body upper shell plate 1 is carbon fiber composite material.
[0052] In this embodiment, the material of the body upper shell plate is a thin plate shell structure formed by carbon fiber composite material. The main material of the shell structure is carbon fiber composite material, and the inner and outer surfaces are covered with a glass fiber surface layer as an insulating layer to ensure complete insulation of the carbon fiber carrier structure and the load contact surface. The shell structure plays a role in envelope boundary flow resistance and has a certain carrier strength in the vehicle carrier structure. The buoyancy material and the body upper shell plate and the load are co-enveloped, which provides the maximum positive buoyancy for the underwater unmanned vehicle to carry heavier loads. The buoyancy material is post-cured and bonded to the body upper shell plate to form an integral shell plate float structure. The co-enveloped shell plate float structure is located at the upper part of the underwater unmanned vehicle, and the positive buoyancy provided by its location greatly improves the overall float center height of the underwater unmanned vehicle, increases the metacentric height, and improves the stability of the underwater vehicle.
[0053] This embodiment also includes:
[0054] A manufacturing method of the above-mentioned co-enveloped shell plate float structure of the underwater unmanned vehicle, which comprises the following steps:
[0055] Step 1: as shown in the accompanying Figure 2 , place the body upper shell plate negative mold 5 on the steel platform, and perform mold surface treatment, release cloth layering, resin glue channel laying, etc. according to the requirements of the carbon fiber shell plate forming layering sequence process design;
[0056] Step 2: as shown in the accompanying Figures 2-3 , place the carbon fiber cloth layer and the surface insulating layer 6 on the surface of the body upper shell plate negative mold 5 on the steel platform according to the layering process design requirements, and then perform the mold closing work of the male mold and the female mold according to the mold closing process design requirements;
[0057] Step 3: perform the air tightness inspection work after mold closing according to the air tightness process design requirements;
[0058] Step 4: perform the resin glue flow work of the body upper shell plate 1 according to the shell plate forming resin flow process design requirements, and perform the forming and curing work of the body upper shell plate 1 according to the shell plate curing forming process design requirements;
[0059] Step 5: The body upper shell plate 1 after solidification molding is demolded from the body upper shell plate male die 7 according to the demolding process design requirements of the body upper shell plate male die 7, and the surface of the bonding surface area of the buoyancy material 2 and the body upper shell plate 1 is treated;
[0060] Step 6: As shown in the accompanying drawings, the buoyancy material 2 which is respectively co-enclosed with the body upper shell plate 1 and the load 3 is bonded through the bonding process design requirements and the distance between the buoyancy material 2 and the body upper shell plate 1 is ensured to meet the design size requirements; Figure 4
[0061] Step 7: The bonded body upper shell plate 1 and the buoyancy material 2 are post-solidified according to the post-solidification process design requirements of the co-enclosed shell plate floating body structure;
[0062] Step 8: As shown in the accompanying drawings, the co-enclosed shell plate floating body structure after post-solidification molding is demolded from the body upper shell plate female die 5 according to the demolding process design requirements of the body upper shell plate, and the surface of the co-enclosed shell plate floating body structure is treated. Figure 5
[0063] The co-enclosed shell plate floating body structure of the present application meets the requirements of carrying the super-large self-weight and high-weight-float ratio load in the limited envelope space of the underwater unmanned vehicle, and also meets the strength, stability, maneuverability and other requirements of the carrier structure of the underwater unmanned vehicle, which is embodied as follows:
[0064] (1) The underwater unmanned vehicle can carry the super-large self-weight and high-weight-float ratio load;
[0065] (2) The effective outfitting and fixing of the carried load and the protection of the load can be met;
[0066] (3) The envelope space of the underwater unmanned vehicle can be effectively utilized to the maximum extent, and the stiffness of the body upper shell plate is improved;
[0067] (4) The underwater unmanned vehicle can have high float center and large stability center, that is, the underwater vehicle can have high stability and easy maneuvering during underwater navigation.
[0068] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An underwater unmanned vehicle common envelope shell plate floating structure, characterized in that: include: A main body upper shell plate (1) and a buoyancy material structure (2), wherein the main body upper shell plate (1) is connected to the buoyancy material structure (2), the main body upper shell plate (1) is located on an underwater unmanned vehicle carrier structure, the main body upper shell plate (1) and the buoyancy material structure (2) are connected to a carrier main structure (4), and a load (3) is installed between the buoyancy material structure (2) and the carrier main structure (4).
2. The underwater unmanned vehicle common envelope shell plate floating structure according to claim 1, characterized in that: The main body upper shell plate (1) and the buoyancy material structure (2) are a floating body structure that is solidified into an integral whole after being co-enveloped.
3. The underwater unmanned vehicle common shell plate floating structure according to claim 1 or 2, characterized in that: The material of the main body upper shell plate (1) is carbon fiber composite material.
4. The underwater unmanned vehicle common envelope shell plate floating structure according to claim 3, characterized in that: The inner and outer surfaces of the carbon fiber composite material of the main body upper shell (1) are both coated with glass fiber surface layers as insulation layers, ensuring complete insulation between the carbon fiber carrier structure and the load contact surface.
5. The underwater unmanned vehicle common envelope shell plate floating structure according to claim 4, characterized in that: The main body upper shell (1) and the buoyancy material structure (2) are a floating structure that is solidified into an integral body after being co-enveloped, and the inner surface is completely co-enveloped with the load (3).
6. A method for manufacturing a common envelope shell floating structure of an underwater unmanned vehicle according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: Step 1: Place the upper shell plate female mold (5) on the steel platform, and perform mold surface treatment, demoulding cloth laying, resin glue channel laying and other preparatory work according to the requirements of the pre-process design of carbon fiber shell plate molding and laying; Step 2: The carbon fiber cloth layer and the surface insulation layer (6) are gradually laid on the surface of the pre-treated demoulding cloth layer of the main body upper shell female mold (5) on the steel platform according to the requirements of the layer laying process design, and then the main body upper shell male mold (7) is molded together with the female mold according to the requirements of the mold closing process design; Step 3: Perform airtight inspection after mold closing; Step 4: Conducting the resin glue diversion work of the upper shell plate (1) of the main body, and performing the molding and curing work of the upper shell plate (1) of the main body; Step 5: demoulding the solidified upper shell plate (1) of the main body from the upper shell plate male mold (7), and performing surface treatment on the bonding surface between the buoyancy material (2) and the upper shell plate (1); Step 6: bonding the buoyancy material (2) that is co-enveloped with the main body upper shell (1) and the load (3) and ensuring that the distance between the edge of the buoyancy material (2) and the main body upper shell (1) meets the design size requirements; Step 7: Post-curing the bonded upper shell plate (1) and buoyancy material (2); Step 8: demoulding the post-cured and formed co-enveloping shell plate floating structure from the main body upper shell plate female mold (5), and performing surface treatment on the co-enveloping shell plate floating structure.