Large-load multi-rotor butterfly-shaped airship

Abstract

The invention discloses a heavy-load multi-rotor butterfly airship which comprises an airship body, a pod, an air cushion, a hanging component, a duct power system and a nuclear power generation system, and the pod is fixed under the airship body and used for loading the nuclear power generation system and airship-borne equipment; the air cushion is fixed below the airship body and used for landing buffering of the airship. The hanging part is arranged below the air cushion and is used for hanging an effective load; the duct power system is fixed to the joint of the upper surface and the lower surface of the airship body and used for controlling the airship to move and balancing the effective load weight. The nuclear power generation system uses nuclear fuel to generate power and provides power for the duct power system and the airship-mounted equipment of the airship. The butterfly-shaped airship and the multiple rotors are combined to form a composite layout, and the composite airship has the advantages of being large in load, easy to unload, high in spot hovering capacity and the like. Meanwhile, nuclear power generation is adopted as a power source of the airship, and the advantages of high power, lasting discharge, environment friendliness and the like are achieved.

Description

Technical Field

[0001] The present invention belongs to the field of aviation technology, and in particular relates to a heavy-load multi-rotor butterfly-shaped airship. Background Art

[0002] my country's vigorous development of wind power is a major initiative. Large wind turbines are difficult to transport and lift due to their large size and weight. Traditional road transport for large wind turbines located in mountainous areas not only faces the challenges of road reconstruction, long construction periods, and significant construction difficulties, but also requires heavy lifting equipment to install them in the confined spaces of mountaintops, which poses significant risks and is prone to accidents. Using airships to transport and lift large wind turbines is the most cost-effective solution to addressing the challenges of wind power development in central and western China. Airships not only have large size and buoyancy, making them suitable for carrying large and heavy wind turbine blades and towers, but they can also move slowly and hover at a fixed point, making them suitable for loading, unloading, and lifting wind turbines. However, traditional airships are fuel-powered, resulting in low efficiency and heavy engines. Loading and unloading require inflation and deflation to maintain the airship's balance, which is time-consuming and labor-intensive. Furthermore, adjusting the airship's position during transportation and lifting is difficult, making installation inconvenient.

[0003] Transporting large equipment to remote areas is currently a major challenge, requiring temporary road reconstruction and requiring long, challenging construction periods. This is particularly true for large-scale staged rockets, large tanks, armored vehicles, automatic artillery, and other equipment, which are particularly expensive and time-consuming to transport in remote western regions. Using high-load airships for transportation significantly addresses the challenges of remote areas, where high mountains, long roads, and rugged terrain pose significant transportation difficulties. During earthquake and flood relief efforts, these airships can also transport large engineering vehicles, large prefabricated structures, bridges, and dams to remote areas in emergencies, playing a vital role in national emergency response. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a large-load multi-rotor butterfly airship, which can improve the lifting accuracy and transportation efficiency of the airship, simplify the lifting process, reduce transportation costs, and increase the cost-effectiveness of large payload development in mountainous areas.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A large-load multi-rotor butterfly-shaped airship is characterized by comprising: a hull, a pod, an air cushion, a hanging component, a ducted power system, and a nuclear power generation system, wherein the pod is fixed directly below the hull and is used to load the nuclear power generation system and onboard equipment; the air cushion is fixed below the hull and is used to cushion the landing of the airship; the hanging component is arranged below the air cushion and is used to hang the payload; the ducted power system includes a tilt ducted power system and a lift ducted power system, which are fixed at the junction of the upper and lower surfaces of the hull and are used to control the movement of the airship and balance the weight of the payload; the nuclear power generation system uses nuclear fuel to generate electricity, which is used to provide power for the ducted power system and onboard equipment of the airship.

[0007] Furthermore, the hull is butterfly-shaped and made of a laminated fabric composite material.

[0008] Furthermore, the pod is square, and an air cushion is arranged along the four corners of the outer side of the pod respectively.

[0009] Furthermore, the air cushion is a cylindrical air cushion, and the height of the air cushion from the ground is less than the height of the pod from the ground.

[0010] Furthermore, the hanging component includes a steel hook and a storage component, the storage component is fixed to the air cushion, the steel hook is fixed to the storage component, the steel hook is used to hang the steel cable connected to the payload, and the storage component is used to store the steel hook when the airship lands.

[0011] Furthermore, the tilt-ducted propulsion system includes a duct, a six-blade variable-pitch propeller, a fairing cap, a propeller hub, a motor, a motor support rod, a support shaft, and a drive motor, which are fixed at the junction of the upper and lower surfaces of the hull and evenly arranged along the side direction of the pod; the drive motor can make the duct rotate 360° around the support shaft, which is used to control the horizontal movement, attitude adjustment and wind resistance of the airship.

[0012] Furthermore, the lift ducted power system includes a duct, a six-blade variable pitch propeller, a fairing cap, a hub, a motor, a motor support rod, and a support shaft. The duct of the lift ducted power system is fixed at the junction of the upper and lower surfaces of the hull through the support shaft, and is used to balance the payload weight and control the lifting and lowering movement of the airship.

[0013] Furthermore, the onboard equipment includes sensors and a flight control system. The sensors are used to measure the motion parameters of the airship and transmit the motion parameters to the flight control system; the flight control system uses the acquired parameters to judge the current flight attitude and position as well as the target flight attitude and position, and generates control instructions for the target attitude and position.

[0014] Furthermore, the ducted power system includes eight lift ducted power systems and four tilt ducted power systems.

[0015] Furthermore, the six-blade variable pitch propeller adopts a centrifugal hammer type variable pitch structure. When the propeller speed increases or decreases, the reverse torque generated by the centrifugal hammer drives the propeller pitch to change.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The high-load, multi-rotor butterfly-shaped airship of the present invention combines a butterfly-shaped airship with a multi-rotor design to create a composite layout, offering advantages such as high payload, easy unloading, and strong fixed-point hovering capability. Nuclear power generation is used as the airship's power source, resulting in high energy conversion efficiency, long-lasting discharge, environmental friendliness, and reduced weight. Loading and unloading processes achieve balance by adjusting the lift provided by the lift duct power system, resulting in simple and convenient operation. The symmetrical butterfly-shaped airship design facilitates attitude adjustment and improves the efficiency and precision of lifting, transporting, and installing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a large-load multi-rotor butterfly airship provided by an embodiment of the present invention;

[0019] Figure 2 1 is a front view of a heavy-load multi-rotor butterfly-shaped airship provided by an embodiment of the present invention;

[0020] Figure 3 1. This is a bottom view of a heavy-load multi-rotor butterfly-shaped airship provided by an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the tilt-ducted propulsion system of a large-load multi-rotor butterfly-shaped airship provided by an embodiment of the present invention.

[0022] In the figure, 1-hull, 2-pod, 3-air cushion, 4-suspension component, 5-lift ducted power system, 6-tilt ducted power system, 7-nuclear power generation system, 8-duct, 9-six-blade variable pitch propeller, 10-fairing cap, 11-propeller hub, 12-motor, 13-motor support rod, 14-support shaft, 15-drive motor. DETAILED DESCRIPTION

[0023] Unless otherwise stated, any feature disclosed in this specification may be replaced by an alternative feature that is equivalent or has a similar purpose. That is, each feature is only an example of a series of equivalent or similar features.

[0024] To make the objectives, technical solutions, and advantages of the present invention more clear, the present invention will be described in more detail below with reference to the accompanying drawings. It should be noted that the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] The present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner. Therefore, they should not be understood as limiting the present invention.

[0026] like Figure 1 As shown, the present invention provides a large-load multi-rotor butterfly-shaped airship, which includes a hull 1, a pod 2, an air cushion 3, a hanging component 4, a ducted power system, and a nuclear power generation system 7. The ducted power system includes a lift ducted power system 5 and a tilt ducted power system 6.

[0027] like Figure 2-3 As shown, the pod 2 is fixed to the bottom of the hull 1 for loading the nuclear power generation system and onboard equipment; the air cushion 3 is fixed to the bottom of the hull 1 for landing cushioning of the airship; the hanging component 4 is fixed to the air cushion 3 for hanging the payload; the ducted power system is fixed at the junction of the upper and lower surfaces of the hull for controlling the movement of the airship and balancing the weight of the payload.

[0028] The bladder material of the airship hull 1 is made of a laminated fabric composite material, which includes a weather-resistant layer that can resist harsh environments such as ozone and ultraviolet rays, a barrier layer with good airtightness, and a fabric layer with high tensile strength. The weather-resistant layer and the barrier layer are made of film material, and the fabric layer is made of aromatic polyester fiber. The layers are laminated with special adhesive materials. The bladder has the advantages of high tensile strength, good high and low temperature resistance, excellent wear resistance, low water absorption, strong acid and alkali corrosion resistance, and strong pressure bearing capacity. The bladder has a butterfly-shaped symmetrical structure with a good streamlined aerodynamic shape. The butterfly-shaped hull is conducive to the adjustment and control of the airship's posture and is convenient for the lifting and installation of large payloads.

[0029] A nuclear power generation system 7 and onboard equipment are arranged in the airship pod 2. In a preferred embodiment, the pod is square, and an air cushion is arranged along the four corners of the outer side of the pod. The pod is fixed directly below the butterfly-shaped hull and is used to carry the nuclear power generation system 7 and onboard equipment. The nuclear power generation system 7 uses nuclear fuel to generate electricity to provide power for the ducted power system and onboard equipment of the airship. Preferably, the power of the nuclear power generation system is 18MW and the weight is 5000kg. The onboard equipment includes sensors and a flight control system. The sensors are used to measure the airship's position, ground speed, airspeed, altitude, attitude and other motion parameters, and transmit the parameters to the flight control system; the flight control system judges the current flight attitude and position and the target flight attitude and position through the acquired parameters, and generates control instructions for the target attitude and position.

[0030] The air cushion 3 of the airship is located under the hull. In a preferred embodiment, it includes four tubular air cushions, which are arranged along the four corners of the outer side of the square pod. The air cushion is made of ultra-high molecular weight polyethylene, which has higher wear resistance, tear resistance and better pressure resistance. It also has good cold resistance and chemical resistance, and is suitable for use in high-altitude and low-temperature environments. Preferably, a single air cushion has a diameter of 2m and a height of 3m. The height of the air cushion from the ground is less than the height of the square pod from the ground. When landing, the air cushion touches the ground first and is used for landing cushioning of the airship.

[0031] The hanging component 4 includes a steel hook and a storage component. The storage component is fixed to the air cushion, and the steel hook is fixed to the storage component. The steel hook is used to hang the steel cable connected to the payload. In a preferred embodiment, the storage component is located in the hollow part of the cylindrical air cushion, and its bottom is 2m away from the bottom of the air cushion, which is used to store the hook when the airship lands. The hanging components are arranged under the air cushion, and one hanging component is arranged under each air cushion. Preferably, there are 4 hanging components in total. The hanging components can carry steel cables for lifting and transporting large payloads.

[0032] like Figure 4 As shown, the tilt-ducted propulsion system includes a duct 8, a six-blade variable pitch propeller 9, a fairing 10, a hub 11, a motor 12, a motor support rod 13, a support shaft 14, and a drive motor 15. The lift ducted propulsion system includes a duct 8, a six-blade variable pitch propeller 9, a fairing 10, a hub 11, a motor 12, a motor support rod 13, and a support shaft 14. The duct 8 of the lift ducted propulsion system is fixed to the junction of the upper and lower surfaces of the airship hull 1 via the support shaft 14, and is used to balance the payload weight and control the airship's lifting and lowering movement. It cannot rotate around the support shaft 14. The drive motor of the tilt-ducted propulsion system is arranged inside the support shaft 14, which can make the duct 8 rotate 360° around the support shaft 14, and is used to control the lifting, horizontal and rotational movement of the airship.

[0033] The skin of Duct 8 is made of carbon fiber composite material, the structural support is made of aviation aluminum alloy, and the internal support is made of metal frame beam rib structure, which reduces the structural weight while ensuring the rigidity.

[0034] The six-blade variable-pitch propeller 9, with its skin and beam made of carbon fiber composite material and filled with PMI foam, is located within duct 8 to provide thrust. It utilizes a centrifugal hammer-type variable pitch mechanism. This mechanism generates reverse torque as the propeller speed increases or decreases, driving the propeller pitch to a high pitch at high speeds and a low pitch at low speeds.

[0035] Preferably, the gap between the inner wall of the duct and the blade tip of the ducted power system is 5mm to ensure the efficiency improvement brought by the duct. The fairing 10 in front of the motor rotates with the propeller, and is used to improve the airflow at the root of the blade, and withstand the centrifugal force during rotation and the aerodynamic force generated by the airflow passing through. The hub 11 behind the fairing combines the six single-piece propellers into a whole, while transmitting the torque output by the motor to the blades, and bearing the aerodynamic force (including tension and torque) and centrifugal force generated by the blades. The motor 12 and the duct 8 are connected by four aluminum alloy motor support rods 13. The ducted power system is fixed to the junction of the upper and lower surfaces of the hull 1 by a support shaft 14. Preferably, the single-set power of the ducted power system is 2000kW, and the single-set thrust is 6000kg.

[0036] The ducted 8 structure in the airship's ducted propulsion system is molded from a single piece of lightweight composite material. The ducted housing separates the propeller from the external environment, protecting the operator and reducing noise transmission. Furthermore, the ducted housing adopts an airfoil-shaped cross-section. The ducted housing's defined inverse taper angle improves airflow distribution in the propeller's slipstream. The ducted wall also provides additional lift during flight, resulting in higher aerodynamic efficiency than conventional rotorcraft.

[0037] The tilt-ducted propulsion system is installed at the junction of the upper and lower surfaces of the butterfly-shaped hull, evenly spaced along the four sides of the square pod. It can rotate 360° along its support axis. It controls the airship's horizontal movement, attitude adjustment, and wind resistance. The lift-ducted propulsion system is installed at the junction of the upper and lower surfaces of the butterfly-shaped hull, with two lift-ducted propulsion systems evenly spaced between them. These systems balance payload weight and control the airship's ascent and descent.

[0038] In a preferred embodiment, a high-load, multi-rotor butterfly-shaped airship has six degrees of freedom in mid-air: translational motion along the principal, transverse, and longitudinal axes of the hull 1, as well as rotational motion about three axes. The airship's ducted propulsion system includes eight ducted lift propulsion systems 5 and four ducted tilt propulsion systems 6. The airship's attitude and position control is achieved through these eight ducted lift propulsion systems 5 and four ducted tilt propulsion systems 6. Using an even number of ducted propulsion systems simplifies control logic. Translational motion along the principal and transverse axes of the hull 1 is achieved through the ducted lift propulsion systems 5, translational motion along the longitudinal axis of the hull 1 is achieved through the ducted lift propulsion systems 5, and rotational motion about the longitudinal axis of the hull 1 is achieved through the ducted tilt propulsion systems 6. Under the influence of ambient wind, the airship's rotational motion about the principal and transverse axes of the hull 1 is balanced by the ducted tilt propulsion systems 6 and the ducted lift propulsion systems 5.

[0039] Furthermore, when a large-load multi-rotor butterfly airship needs to adjust its flight attitude and position, it first uses sensors to identify the deviation between the current attitude and position and the target attitude and position. The flight control program calculates the control quantities of the lift ducted power system 5 and the tilt ducted power system 6 relative to each axis by receiving the deviation, and feeds the control quantities back to the motor to control the thrust of the eight lift ducted power systems 5 and the thrust direction and thrust of the four tilt ducted power systems 6, thereby realizing the change of the airship's attitude and position.

[0040] Specifically, the airship of the present invention has a flight altitude of ≤4000m, a flight speed of ≤15m / s, a maximum take-off weight of 300Ton, and a volume of 250000m 3 , payload weight 48000kg.

[0041] The following examples are used to illustrate the process of using the large-load multi-rotor butterfly-shaped airship of the present invention to lift and transport large payloads.

[0042] The airship is filled with helium, and the buoyancy provided by the hull balances the weight of the airship's structure and the multi-rotor system. The ducted lift propulsion system is activated for takeoff. Once the airship reaches the lifting point, the steel hooks in the sling assembly are released from their receptacles, and the payload is hoisted onto the four steel hooks via steel cables. The thrust of the ducted lift propulsion system is increased so that the lift provided by the multi-rotor balances the payload's weight, completing the lifting process. While the airship is lifting the payload, the tilt-ducted propulsion system operates to provide horizontal thrust, attitude adjustment, and wind resistance. The tilt-ducted propulsion system can provide thrust in different directions and amounts. By combining four tilt-ducted propulsion systems, the airship can fly in any direction, rotate its attitude, and resist wind. When the airship approaches the installation site for a large payload, the thrust of the ducted lift propulsion system is reduced to allow the airship to descend to an appropriate altitude. The tilt-ducted propulsion system adjusts the airship's attitude and maintains stability, facilitating payload unloading and installation. After the payload is unloaded, the steel hook in the hanging component is retracted into the storage unit, and the airship returns to the departure point and lands, completing a lifting mission.

[0043] It should be noted that the above-described embodiments are merely preferred embodiments of the present invention. Persons skilled in the art will appreciate that various modifications, improvements, and equivalent substitutions may be made to the present invention without departing from the principles of the present invention, and such modifications, improvements, and equivalent substitutions are deemed to fall within the scope of protection of the claims of the present invention.

Claims

1. A heavy-load multi-rotor butterfly-shaped airship, characterized in that: include: A hull, a pod, an air cushion, a hanging component, a ducted power system, and a nuclear power generation system, wherein the pod is fixed directly below the hull and is used to load the nuclear power generation system and onboard equipment; the air cushion is fixed below the hull and is used for landing cushioning of the airship; the hanging component is arranged below the air cushion and is used to hang the effective load; the ducted power system includes a tilt ducted power system and a lift ducted power system, which are fixed at the junction of the upper and lower surfaces of the hull and are used to control the movement of the airship and balance the weight of the effective load; the nuclear power generation system uses nuclear fuel to generate electricity to provide power for the ducted power system and onboard equipment of the airship.

2. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The boat body is butterfly-shaped and is made of laminated fabric composite material.

3. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The pod is square, and an air cushion is arranged along the four corners of the outer side of the pod respectively.

4. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The air cushion is a tubular air cushion, and the height of the air cushion from the ground is less than the height of the pod from the ground.

5. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The hanging component includes a steel hook and a storage piece, wherein the storage piece is fixed to the air cushion, the steel hook is fixed to the storage piece, the steel hook is used to hang a steel cable connected to a payload, and the storage piece is used to store the steel hook when the airship lands.

6. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The tilt-ducted propulsion system includes a duct, a six-blade variable pitch propeller, a fairing, a hub, a motor, a motor support rod, a support shaft, and a drive motor. The tilt-ducted propulsion system is fixed at the junction of the upper and lower surfaces of the hull and is evenly arranged along the side direction of the pod. The drive motor can make the duct rotate 360° around the support shaft, so as to control the horizontal movement, attitude adjustment and wind resistance of the airship.

7. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The lift ducted power system includes a duct, a six-blade variable pitch propeller, a fairing, a hub, a motor, a motor support rod, and a support shaft. The duct of the lift ducted power system is fixed at the junction of the upper and lower surfaces of the hull through the support shaft to balance the payload weight and control the lifting and lowering movement of the airship.

8. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The onboard equipment includes sensors and a flight control system. The sensors are used to measure the motion parameters of the airship and transmit the motion parameters to the flight control system. The flight control system determines the current flight attitude and position and the target flight attitude and position through the acquired parameters and generates control instructions for the target attitude and position.

9. The heavy-load multi-rotor butterfly-shaped airship according to claim 1, characterized in that: The ducted power system includes eight sets of lift ducted power systems and four sets of tilt ducted power systems.

10. The heavy-load multi-rotor butterfly-shaped airship according to claim 6 or 7, characterized in that: The six-blade variable pitch propeller adopts a centrifugal hammer type variable pitch structure. When the propeller speed increases or decreases, the reverse torque generated by the centrifugal hammer drives the propeller pitch to change.

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