A layered multi-body high-stability floating structure

Abstract

The utility model provides a kind of layered multi-body high stability floating structure, belong to marine engineering equipment technical field.Floating structure includes first layer frame, second layer frame and third layer frame.Second layer frame includes multiple groups, is installed in the lower part of first layer frame, and each second layer frame is evenly included and is arranged to the second layer frame support leg of several downwards;Every second layer frame support leg is installed with a third layer frame, and third layer frame includes several third layer frame support legs, which are arranged to the downwards, and every third layer frame support leg is installed with float;Float is hinged with third layer frame support leg.This application improves single float structure in prior art to array float structure.Through the collaborative design of array float and layered hinged frame, the stability and self-adaptive ability of floating structure in complex sea conditions are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering equipment technology, specifically to a layered multibody highly stable floating structure. Background Technology

[0002] With the in-depth development of marine resources, floating structures are increasingly widely used in fields such as offshore photovoltaics, aquaculture equipment, and marine tourism. Offshore equipment is affected by sea waves in marine environments, and in order for offshore equipment to function properly, it needs to have stability and wave resistance.

[0003] Offshore photovoltaic systems, aquaculture equipment, and marine tourism equipment are mounted on floating structures, and the performance of these floating structures largely determines the performance of the equipment. However, existing floating structures and their control systems still suffer from limitations in structural stability, insufficient wave resistance, low levels of intelligence in control systems, material and durability issues, and low energy recovery and integration efficiency. Traditional floating platforms often use single floating bodies, making them ill-suited to the complex and ever-changing marine environment, especially prone to capsizing or structural fatigue damage when encountering large or oblique waves.

[0004] Therefore, a floating structure system with high stability, intelligent control capabilities and good wave adaptability is needed to improve the safety and reliability of offshore equipment that relies on floating structures in harsh sea conditions. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a layered, multi-body, highly stable floating structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A layered multibody highly stable floating structure includes: First layer of framework; Second layer frame: includes multiple sets, installed below the first layer frame, each second layer frame includes several second layer frame legs facing downward; Third-layer frame: A third-layer frame is installed on each of the second-layer frame legs. The third-layer frame includes several third-layer frame legs facing downwards. A float is installed on each of the third-layer frame legs. The float is hinged to the third-layer frame leg.

[0007] In some embodiments of this application, the first layer frame includes three first layer frame beams arranged in an equilateral triangle, and a first layer frame leg is provided at the intersection of any two of the frame beams facing downwards, and a second layer frame is installed on each first layer frame leg.

[0008] In some embodiments of this application, the second-layer frame includes three second-layer frame beams, which are of equal length and intersect at one end. Along the intersection of the three second-layer frame beams, adjacent second-layer frame beams are arranged at 60° intervals. Each second-layer frame beam is provided with a second-layer frame support leg at the end opposite to the intersecting end.

[0009] In some embodiments of this application, the third-layer frame includes three third-layer frame beams, which are of equal length and intersect at one end. Along the intersection of the three third-layer frame beams, adjacent third-layer frame beams are arranged at 60° intervals. Each of the third-layer frame beams is provided with a third-layer frame support leg at the end opposite to the intersecting end.

[0010] In some embodiments of this application, the third-layer frame is hinged to the legs of the second-layer frame.

[0011] In some embodiments of this application, the float is cylindrical.

[0012] In some embodiments of this application, the hinge position between the third-layer frame leg and the float is located at the center of the float of each float.

[0013] In some embodiments of this application, the second frame leg and / or the third frame leg are hydraulic rods.

[0014] In some embodiments of this application, frame sensors are installed on the first, second, and third frame layers; the floating structure also includes a controller connected to each frame sensor to collect attitude data of each frame layer. In some embodiments of this application, each float is equipped with a float sensor, and the controller is connected to each float sensor to collect attitude data of each float.

[0015] Compared with the prior art, the technical advantages of the floating structure provided by this utility model are as follows: 1. The layered multi-body high-stability floating structure provided in this application improves the arrangement of the floating bodies. It transforms the existing single-buoy structure into a high-stability floating structure consisting of an array of floating bodies and a layered articulated frame. Through the collaborative design of the array of floating bodies and the layered articulated frame, combined with an intelligent control system, the stability and adaptability of the floating structure under complex sea conditions are significantly improved.

[0016] 2. A flexible hinged structure is used between the floating body and the main frame. The ball joint connection and multi-level control mechanism effectively release the swaying motion caused by waves. The array of floating bodies is composed of multiple floating body units. The reasonable layout and connection method can distribute wave loads and reduce overall stress. The layered hinged frame is connected to each layer by hinge devices, which can adapt to wave forces in different directions and improve the flexibility and compressive strength of the structure.

[0017] 3. The layered multibody high-stability floating structure provided in this application embodiment is a floating structure system with high stability, strong wave resistance, intelligent control, durability and reliability, and energy recovery capability, which meets the comprehensive requirements of future marine resource development for safety, economy and sustainability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an initial state diagram of the floating structure provided in an embodiment of this application; Figure 2 This is a side view of the layered multibody high-stability floating structure under working conditions, as provided in the embodiments of this application. Figure 3 A three-dimensional structural diagram of the layered multi-body highly stable floating structure in its working state, provided in an embodiment of this application; Figure 4 A schematic diagram of the first layer frame structure of the layered multibody high-stability floating structure provided in the embodiments of this application; Figure 5 A schematic diagram of the second-layer frame structure of the layered multibody high-stability floating structure provided in the embodiments of this application; Figure 6 A schematic diagram of the third-layer frame structure of the layered multibody high-stability floating structure provided in the embodiments of this application; Figure 7 A schematic diagram of the floating body structure of the layered multi-body high-stability floating structure provided in the embodiments of this application; Figure 8 This is a schematic diagram of the third-layer frame support leg structure in an embodiment of this application.

[0020] In the above figures: 1. First-layer frame; 101. First-layer frame crossbeam; 102. First-layer frame support leg; 2. Second-layer frame, 201. Second-layer frame support leg, 202. Second-layer frame crossbeam; 3. Third-layer frame; 301. Third-layer frame support leg; 302. Third-layer frame crossbeam; 303. Spring; 4. Floating body; 5. Hinge point. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as "set on" or "connected to" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.

[0025] This application provides a floating structure that can be applied to scenarios such as offshore photovoltaic power generation, deep-sea aquaculture, offshore tourism platforms, floating wind power foundations, and multifunctional marine ranches. It aims to solve the problems of poor stability, weak wave resistance, low level of intelligence, insufficient material durability, and low energy recovery efficiency of traditional single-floating structures under complex sea conditions.

[0026] The structural diagram of the floating structure provided in this application is for reference. Figures 1 to 3 It is a multi-layer frame structure, and each layer of the frame can adopt an M-type rigid frame.

[0027] The first-layer frame 1 serves as the overall load-bearing frame for the floating structure, and it is located at the top when the floating structure is in use. Depending on the different usage scenarios of the floating structure, the upper part of the first-layer frame 1 can be equipped with photovoltaic module arrays, marine tourism facilities, marine aquaculture equipment, offshore platforms, etc.

[0028] The second-layer frame 2 comprises multiple sets and is installed below the first-layer frame. Each second-layer frame 2 includes several downward-facing second-layer frame legs 201. As an intermediate transition structure of the entire floating structure, the second-layer frame 2, due to its multiple design, extends the overall frame structure of the floating structure from the first-layer frame 1 to the second-layer frame 2.

[0029] The third-layer frame 3 is installed below the second-layer frame 2. Each leg 201 of the second-layer frame has a third-layer frame 3 mounted on it. The third-layer frame 3 includes several downward-facing legs 301, each with a float 4 mounted on it. The float 4 is hinged to the leg 301, for example, using a ball joint or universal joint. A structure that allows relative rotation between the float 4 and the leg 301 is formed. When waves crash, the float 4 oscillates with the waves rather than directly resisting them, thus reducing the impact of peak wave forces on the floating structure.

[0030] In some embodiments of this application, the third-layer frame 3 is hinged to the second-layer frame support leg 201. Through this structure, the cooperation of the multi-layer hinged structure allows for coordinated movement between the third-layer frame 3 and the second-layer frame 2, and between the third-layer frame 3 and the float 4, making the entire frame system more flexible and stable during unfolding and folding.

[0031] In this embodiment, since the third-layer frame 3 is designed as multiple sets, the overall frame structure of the floating structure is further extended from the second-layer frame 2 to the third-layer frame 3.

[0032] This structure achieves a floating system architecture with a "three-layer progressive structure from top to bottom and continuous expansion of the spatial grid," balancing ultra-large load capacity, high stability, and modular assembly. The first-layer frame 1 distributes the loads used for photovoltaics, tourism, and aquaculture to multiple sets of second-layer frames 2, which are then transferred via second-layer frame legs 201 to the third-layer frame 3, via third-layer frame legs 301, and finally buoyancy is provided by the array of floating bodies 4. Due to the increased number of floating bodies 4, the impact force on a single leg of the first-layer frame is only 1 / (m×n) of the buoyancy of a traditional floating structure (m = number of second-layer frame legs 201, n = number of third-layer frame legs 301), significantly reducing local bending moments and fatigue stress.

[0033] refer to Figure 4 In some embodiments of this application, a main structure of a first-layer frame 1 is further provided. The first-layer frame 1 includes three first-layer frame beams 101 arranged in an equilateral triangle. A first-layer frame leg 102 is provided downward at the intersection of any two frame beams, and a second-layer frame 2 is installed on each first-layer frame leg 102.

[0034] Specifically, the first-layer frame 1 forms a minimally stable single structure consisting of an equilateral triangular main beam and three-point supports. The equilateral triangle is the only rigid planar shape that can maintain its shape without diagonal bracing. The three first-layer frame beams 101 will not undergo shear deformation under compression or tension. The three points define a plane, and when the floating body 4 under any one of the first-layer frame supports 102 sinks instantaneously due to waves, the other two first-layer frame supports 102 automatically form a tension-compression coupling, suppressing the overall warping of the first-layer frame 1. This structure brings significant advantages to the floating structure in four dimensions: structural efficiency, mechanical performance, manufacturing, and installation.

[0035] refer to Figure 5 In some embodiments of this application, the second-layer frame 2 includes three second-layer frame beams 202. The three second-layer frame beams 202 are of equal length and intersect at one end. Along the intersection of the three second-layer frame beams 202, adjacent second-layer frame beams 202 are arranged at 60° intervals. Each second-layer frame beam 202 is provided with a second-layer frame support leg 201 at the end opposite to the intersection.

[0036] refer to Figure 6 In some embodiments of this application, the structure of the third-layer frame 3 is similar to that of the second-layer frame 2. The third-layer frame 3 includes three third-layer frame beams 302. The three third-layer frame beams 302 are of equal length and intersect at one end. Along the intersection of the three third-layer frame beams 302, adjacent third-layer frame beams 302 are arranged at 60° intervals. Each third-layer frame beam 302 is provided with a third-layer frame support leg 301 at the end opposite to the intersection.

[0037] Specifically, the second-layer frame 2 forms a triangular star-shaped (Y-shaped) rigid plane, echoing the equilateral triangle of the first-layer frame 1, thus creating a spatial force flow closed loop of "upper triangle - lower triangular". The three second-layer frame beams 202 radiate outwards at 60° from their central intersection point, dividing the concentrated force from the first-layer frame legs 102 into three pure axial force paths. Under extreme conditions, when any second-layer frame beam 202 undergoes plastic deformation, the remaining two beams and legs immediately form a "planar rigid frame", still able to transfer the first-layer load to the third-layer frame 3, resulting in high structural reliability.

[0038] Similarly, the third-layer frame 3 and the second-layer frame 2 form a "mirror-isomorphic" triangular (Y-shaped) rigid plane, which overlaps to form a "double Y-cone tower" force transmission system. On the one hand, this expands the number of floating bodies 4, improving the overall impact resistance of the floating structure. On the other hand, it provides a lightweight, highly redundant, and rapidly replicable "bottom base" for the entire floating platform, which is the final key link in realizing large-scale, low-cost, and highly reliable floating structures for deep-sea applications.

[0039] With the above structure, the first layer frame 1 adopts a triangular frame with three first layer frame legs 102 extending from the frame, equipped with three hinge joints; the second layer consists of three medium-sized triangular rigid frames with a total of nine second layer frame legs 201, equipped with nine hinge joints; it includes nine small third layer frames 3, each with a downward rod hinged to a smaller triangular frame, and each of the three second layer frame legs 201 of the smallest frame is hinged to a float 4.

[0040] It should be understood that the structures of the first-layer frame 1, the second-layer frame 2, and the third-layer frame 3 provided in the embodiments of this application are not intended to limit their respective structures. That is, in some embodiments, the first-layer frame 1 may not adopt an equilateral triangle structure; for example, it may adopt triangles of other shapes, or it may adopt various forms such as rectangles. In some embodiments, the number of second-layer frame beams 202 in the second-layer frame 2 can also be set as needed; the more second-layer frame beams 202 there are, the more extended floats 4 there are. The spacing angle between the second-layer frame beams 202 can also be selected as needed; for example, in some embodiments, the various second-layer frame beams 202 can be set with equal spacing angles, and in some embodiments, the various second-layer frame beams 202 can be arranged with unequal spacing angles. In some embodiments, the second-layer frame 2 can also be designed as a polygonal structure similar to the first-layer frame 1. The structural design principle of the third-layer frame 3 is the same as that of the second-layer frame 2, and will not be described again.

[0041] refer to Figure 7 In some embodiments of this application, a mating structure for the third-layer frame support leg 301 of the float 4 is further provided. The float 4 is cylindrical. As a preferred embodiment, the hinge point 5 between the third-layer frame support leg 301 and the float 4 is located at the center of the float 4.

[0042] The center of drift is the equivalent point of application of the horizontal drift force of the float 4 in the waves. When the hinge position of the third frame leg 301 and the float 4 coincides with the center of drift of the float 4, the lever arm of the wave drift force about the hinge point is zero, and no additional overturning moment is generated. This structure can reduce the roll excitation moment of the floating structure and reduce the load on the hinge bearing under extreme sea conditions. It cuts off the transmission path of wave drift force and overturning moment of the floating structure from the mechanical source, realizing the float freely following the waves, and has the advantages of low cost and high reliability.

[0043] For example, in order to connect the third-layer frame leg 301 with the float 4, a metal circular plate is attached to the upper surface of the float 4 at the ball joint mounting position, and a threaded stud is welded in the middle of the metal circular plate; or circular plates are placed on the bottom and top surfaces of the float 4, and a threaded rod passes through the two circular plates to connect the third-layer frame leg 301.

[0044] In some embodiments of this application, the second frame support leg 201 and / or the third frame support leg 301 employ hydraulic rods. As a preferred structure, the third frame support leg 301 employs a hydraulic rod, while the second frame support leg 201 may or may not employ a hydraulic rod depending on design requirements. Furthermore, the hydraulic rod can be a multi-stage rod-fitting structure, with a spring 303 internally installed to buffer wave impact.

[0045] In some embodiments of this application, each float 4 is equipped with a float sensor, and the first frame 1, the second frame 2, and the third frame 3 are equipped with frame sensors. The floating structure also includes a controller, which is connected to each float sensor and each frame sensor, and is also connected to a hydraulic rod.

[0046] It should be understood that the buoy sensors can be tilt sensors, and the sensors installed on each layer of the frame can also be tilt sensors. By combining these sensors, the tilt angles of each buoy 4 and each layer of the frame under wave action can be detected. These tilt angle values ​​reflect the impact of wave action on the structure mounted on the first layer of the frame 1. By analyzing the values ​​from each sensor and adjusting the extension and retraction lengths of each hydraulic rod, the stability of the platform mounted on the first layer of the frame 1 can be adjusted.

[0047] refer to Figure 2 and Figure 3 The diagram shows the state of the floating structure under wave action. Since the positions of different floats 4 may be at wave crests or troughs, and the floats 4 and the third frame leg 301 are hinged, the different positions of the floats 4 result in varying degrees of wave impact, leading to differences in the tilt angle of each float 4 at any given moment. Based on the multi-level motion information provided by the float sensors and frame sensors, the extension and retraction of each hydraulic rod are independently controlled, ensuring the uppermost frame remains horizontal. Through this structure, the third frame leg 301 and the second frame leg 201 are directly driven by the controller, allowing for real-time, stepless length adjustment.

[0048] For example, the controller incorporates an intelligent control system, which includes a hydrodynamic model, a floating structure model, and intelligent algorithms. The hydrodynamic model can be customized to the specific application scenario of the floating structure; for instance, the hydrodynamic model will differ depending on whether the floating structure is installed nearshore or offshore. The floating structure model can be designed based on the specific configuration of the floating structure; for example, the model will vary depending on the number of frame layers, the frame structure, and the number of floats.

[0049] Based on data from various sensors, the controller performs real-time calculations and control of the floating array's motion response, optimizing the structure's dynamic performance. It can independently calculate adjustment commands for each hydraulic rod. Utilizing an intelligent monitoring and control system, the platform can autonomously adjust its height to adapt to swaying and quickly maintain balance under wave conditions, achieving high stability.

[0050] The controller, in conjunction with various sensors, autonomously adjusts the length of the hydraulic rods in the frame structure based on the movement of the float 4. This allows each multi-layered frame to adjust the length of its support columns in real time according to the movement of the lower layers, ensuring the levelness of each frame. Through multi-level motion monitoring and control, the levelness of the topmost frame 1 is ultimately guaranteed, achieving high stability for the entire structure.

[0051] The floating structure provided in this application embodiment can achieve centimeter-level high-precision leveling and millisecond-level rapid response in a fully coupled, highly nonlinear dynamic environment of "wave-floating body-frame". Through a three-level sensor array (sampling frequency ≥100 Hz) of "floating body-frame-hydraulic rod" and closed-loop control of independent channels, the roll / pitch angle of the uppermost frame 1 can be stably controlled within ±3°, greatly improving the stability of the floating structure.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A layered multi-body highly stable floating structure, characterized in that, include: First layer of framework; Second layer frame: includes multiple sets, installed below the first layer frame, each second layer frame includes several second layer frame legs facing downward; Third-layer frame: A third-layer frame is installed on each of the second-layer frame legs. The third-layer frame includes several third-layer frame legs facing downwards. A float is installed on each of the third-layer frame legs. The float is hinged to the third-layer frame leg.

2. The layered multi-body highly stable floating structure as described in claim 1, characterized in that, The first layer frame includes three first layer frame beams arranged in an equilateral triangle. A first layer frame leg is provided at the intersection of any two of the frame beams facing downwards. A second layer frame is installed on each first layer frame leg.

3. The layered multi-body highly stable floating structure as described in claim 1, characterized in that, The second-layer frame includes three second-layer frame beams. The three second-layer frame beams are of equal length and intersect at one end. Along the intersection of the three second-layer frame beams, adjacent second-layer frame beams are arranged at 60° intervals. Each second-layer frame beam is provided with a second-layer frame support leg at the end opposite to the intersecting end.

4. The layered multi-body highly stable floating structure as described in claim 3, characterized in that, The third-layer frame includes three third-layer frame beams, which are of equal length and intersect at one end. Along the intersection of the three third-layer frame beams, adjacent third-layer frame beams are arranged at 60° intervals. Each of the third-layer frame beams is provided with a third-layer frame support leg at the end opposite to the intersecting end.

5. The layered multi-body highly stable floating structure as described in claim 1, characterized in that, The third frame is hinged to the legs of the second frame.

6. The layered multi-body highly stable floating structure as described in claim 1, characterized in that, The float is cylindrical.

7. The floating structure as described in claim 1, characterized in that, The hinge position between the third-layer frame leg and the float is located at the center of the float of each float.

8. The layered multi-body highly stable floating structure as described in claim 1, characterized in that, The second-layer frame support leg, and / or the third-layer frame support leg, employs a hydraulic rod.

9. The layered multi-body highly stable floating structure as described in claim 8, characterized in that, Frame sensors are installed on the first, second, and third layer frames; The floating structure also includes a controller connected to each frame sensor to collect attitude data for each frame layer.

10. The layered multi-body highly stable floating structure as described in claim 9, characterized in that, Each float is equipped with a float sensor, and the controller is connected to each float sensor to collect attitude data of each float.

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