Manned flying motorcycle aircraft

Abstract

The utility model provides a manned flight motorcycle aircraft which is characterized by comprising four groups of rotor systems, an energy and flight control system, a flight control system, an undercarriage, a lift airfoil and a fairing, a cavity is formed in the fuselage and used for containing the battery and the flight control system. The rotor systems are symmetrically installed on the fuselage, an undercarriage is fixed to the fuselage, and a nose fairing and a tail fairing are installed in front of and behind the fuselage respectively. According to the aircraft, the cruising ability of the flying motorcycle is remarkably improved, and the flying motorcycle is more suitable for long-distance flight and intercity commuting. Meanwhile, through the synergistic effect of the rotor wings and the control surfaces, the resistance of the aircraft to wind is enhanced, the flight stability and controllability are improved, and therefore the risk in the flight process is reduced. In the aspect of safety, the design of the flying motorcycle adopts a safety redundancy design of coaxial eight propellers and two sets of battery packs, more safety standby measures are provided, the coping capacity when the aircraft breaks down is enhanced, and the overall flying safety is improved.

Description

Technical Field

[0001] The utility model designs a flying motorcycle aircraft, which realizes manned flight through the coordinated action of rotors and wings. The flying motorcycle has additional wings for generating additional lift, thereby extending the flight time. In terms of control, the combined action of rotors and rudders gives it stronger wind resistance. In terms of safety, a coaxial eight-propeller safety redundancy design is adopted to improve overall reliability. The flying motorcycle is suitable for rapid travel between cities and inter-city areas in the future, and belongs to the field of aircraft design. Background Art

[0002] Electric Vertical Takeoff and Landing (eVTOL) is a type of aircraft that is between drones and traditional aircraft, and is usually designed for urban air traffic. It is able to take off and land vertically without the need for a long runway, so it can fly in city centers or compact spaces. These aircraft may become part of the solution to urban traffic congestion and provide faster transportation in the future.

[0003] There are many electric vertical take-off and landing aircraft under development on the market. However, traditional eVTOL aircraft have some limitations and defects in practical use, including but not limited to endurance, risk control and safety. These defects are challenges faced by current technology.

[0004] First, the endurance of traditional eVTOL aircraft is usually limited, which restricts its practical application in long-distance flights and intercity commuting. In addition, under adverse weather conditions, wind resistance and flight stability may be greatly affected, increasing the risk during flight. At the same time, safety has always been one of the most important considerations in aircraft design.

[0005] Traditional eVTOL has certain challenges in terms of safety because of its single design. Therefore, once a technical problem or failure occurs, it may have a significant impact on the stability and safety of the aircraft. The flying motorcycle solution designed in this utility model solves most of the above problems. Combining the advantages of fixed wings and multi-rotors, the aircraft has good endurance, wind resistance, and safety and reliability. In addition, the flying motorcycle proposed in this utility model is significantly different from the aircraft described in Patent No. CN208165254U and Patent No. CN113830301A. The flying motorcycle of the utility model is not a wing-body fusion configuration. In order to facilitate processing and maintenance and meet manned needs, the lift wing of the aircraft is connected to the fuselage through a wing platform. Utility Model Content

[0006] The main objective of the utility model is to design a flying motorcycle with the ability to carry people, with wing surfaces and control surfaces with good aerodynamic efficiency, as well as excellent reliability and endurance performance, so as to be suitable for rapid travel between cities and between cities in the future.

[0007] To achieve the above objectives, the utility model designs a flying motorcycle aircraft with an additional lift wing surface, including four sets of rotor systems, an energy and flight control system, a flight control system, a landing gear, a lift wing surface structure and a fairing. A cavity is formed inside the fuselage to accommodate loads such as batteries and a flight control system. The rotor system is symmetrically mounted on the fuselage, and the landing gear is fixed on the fuselage. A nose fairing and a tail fairing are respectively mounted on the front and rear of the fuselage.

[0008] Each rotor system consists of two brushless DC motors and two propellers mounted coaxially, as well as a protective cover. The energy and flight control system includes two battery packs, BMS, flight control navigation and communication links, which are used to control the motor speed and rudder angle to control the attitude of the aircraft. The flight control system consists of an instrument panel, a display, etc., for manual control by the flying motorcycle driver. The landing gear is fixed to the fuselage to protect the aircraft and achieve smooth take-off and landing. The lift surface structure includes wing platforms for installing wings and lift surfaces for generating lift. The fairing is used to reduce air resistance during flight and reduce energy consumption.

[0009] The main advantage of this utility model is that the additional wing design significantly improves the endurance of the flying motorcycle, making it more suitable for long-distance flights and intercity commuting. At the same time, through the synergy of the rotor and the control surface, the aircraft's resistance to wind is enhanced, the stability and controllability of the flight are improved, and the risk during the flight is reduced. In terms of safety, the design of the flying motorcycle adopts a safety redundancy design of eight coaxial propellers and two sets of battery packs, providing more safety backup measures, enhancing the aircraft's ability to respond to technical problems or failures, and improving overall flight safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an isometric structural diagram of a flying motorcycle.

[0011] Figure 2 It is a schematic diagram of the flying motorcycle's front view structure and related dimensions.

[0012] Figure 3 It is a schematic diagram of the flying motorcycle's top view structure and related dimensions.

[0013] Figure 4 It is a left view structural diagram of the flying motorcycle and related dimensions.

[0014] Figure 5 It is the overall design framework of the flying motorcycle.

[0015] Figure 6 It is the posture of the flying motorcycle in different flight states.

[0016] Figure 7 This is a schematic diagram of the storage of the flying motorcycle.

[0017] The numbers in the figure are explained as follows:

[0018] 1. Propeller 2. Rotor protection cover 3. Landing gear 4. Nose fairing

[0019] 5. Flight control system 6. Wing platform 7. Wing diagonal strut 8. Lifting wing surface

[0020] 9. Flying motorcycle fuselage 10. Tail fairing 11. Rotor arm mounting structure 12. Electric speed controller DETAILED DESCRIPTION

[0021] The utility model designs a manned flying motorcycle with a lifting wing surface. In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Figure 1 This is an isometric structural diagram of a flying motorcycle, with the flying motorcycle fuselage 9 as the main body, four sets of rotor systems 2 and two sets of landing gears 3 symmetrically installed on both sides of the fuselage, a nose fairing 4 and a tail fairing 10 installed at the front and rear of the fuselage respectively, a wing platform 6 and two sets of wing diagonal struts 7 installed at the rear of the fuselage, and a lift surface 8 installed above the wing platform. This flying motorcycle innovatively designed a multi-rotor aircraft with a lift surface, and the lift surface is at an angle of about 20 degrees to the propeller installation plane; the power system and the lift surface provide lift at the same time during forward flight, effectively reducing the load on the power unit of the flying motorcycle in high-speed level flight and increasing flight time and range; the lift surface adopts a delta wing structure and has excellent heading stability. Figure 1It can be seen that the middle of the fuselage is the control position of the flying motorcycle driver, and the flight control system 5 is installed in the front of the fuselage. The interior of the fuselage is hollow, and battery packs are placed in the front and rear cavities respectively to achieve energy redundancy and ensure the safety of the flying motorcycle. A BMS system is installed in the middle cavity of the fuselage to monitor and manage the battery. It can collect and calculate parameters such as voltage, current, temperature and SOC, and then control the charging and discharging process of the battery to protect the battery and improve the overall performance of the battery. The flight control navigation and communication link are installed in the rear of the fuselage cavity. The flight control system is used to control the attitude, propulsion and flight path of the flying motorcycle. The navigation system provides information such as the current position, speed and heading of the flying motorcycle. The communication link transmits data and instructions between various systems inside the flying motorcycle or between the flying motorcycle and the ground control center. The nose fairing and tail fairing are fixed to the front and rear of the fuselage with screws respectively, which reduces air resistance and facilitates disassembly, facilitating subsequent maintenance and maintenance of the internal components of the fuselage. From Figure 2 As you can see, the two sets of landing gear are symmetrically fixed to the two sides of the fuselage by screws, ensuring that the flying motorcycle leaves the ground in a safe and appropriate posture during takeoff and cushioning the impact of the ground during landing. Figure 3 It can be seen that the front-to-back length of the fuselage is 2698mm, the designed fuselage structure weight is 35kg, the landing gear weight is 8kg, the internal avionics system weight is 10kg, and the weight of the two battery packs is 113.6kg.

[0023] Figure 2 It can be seen that the rotor shield and the fuselage are installed through four sets of fuselage-rotor arm installation structures 11. There is a cavity in the middle of the rotor arm, and the cable is led out from the inside of the fuselage to connect with the motor. The center of the rotor shield has a motor mounting seat, and two sets of C14050 model motors are coaxially installed. Each set of motors is installed with a 5424 propeller 1 and a corresponding IG1-D3-060-080440-1 model electric speed controller 12. The rated pulling force of a single power system is 50kg, and the maximum pulling force is 123kg. Figure 3 It can be seen that the rotor shield designed for the flying motorcycle has a streamlined structure, which can reduce the air resistance when the flying motorcycle flies forward and prevent the driver from being injured when the blades break. The inner diameter of the rotor shield is 1400mm, and the center positions of adjacent rotor shields are 2100mm apart. The total weight of the designed four sets of rotor shields is 12kg, the total weight of the eight sets of propellers is 6.6kg, the total weight of the eight sets of motors is 36kg, and the total weight of the eight sets of electric speed controllers is 12kg.

[0024] Figure 1It can be seen that the wing platform is fixed to the fuselage with internal screws, and the lift surface is fixed to the wing platform with eight sets of screws. At the same time, two sets of wing diagonal braces are used to ensure the overall structural strength. The mechanical structure is easy to install and maintain, and damaged parts can be quickly installed and replaced. The wing platform is hollow inside, and cables and signal transmission cables can be led out from the inside to control the deflection of the rudder on the lift surface. Figure 2 It can be seen that the wingspan of the lift wing is 4000mm and the weight of the lift wing is 20kg. The aerodynamic scheme of the lift wing is designed by the vortex grid method, and the S1223 high lift wing airfoil is selected. The wing area of ​​the lift wing is 3.2m 2 , the slight root ratio is 0.2.

[0025] Figure 5 To develop the overall design framework for the flying motorcycle, firstly, we obtain the overall parameter values ​​of the flying motorcycle according to the flight performance required by different flight modes and related constraints; then, we establish the level flight dynamics model according to the related aerodynamic parameters, power data and mass data, and perform joint optimization calculations to determine the key geometric parameters. All the above structures of the flying motorcycle are calculated through this framework. The total mass of the flying motorcycle is 253.2kg, and the maximum passenger mass is 85kg, which can basically meet the needs of most people. Figure 4 It can be seen that there is a 20-degree angle between the fuselage axis and the propeller installation plane, which is also the optimal installation angle designed through the overall design framework. Figure 6 As shown, during the take-off and landing phases of the flying motorcycle, the propeller installation plane is horizontal to provide upward lift; during the transition phase from hovering to forward flight, the propeller installation plane gradually tilts forward and eventually reaches a level flight state, at which time the fuselage has an angle of attack of 5 degrees; when the flying motorcycle flies at the maximum forward flight speed, the fuselage has an angle of attack of 0 degrees; during the braking phase of the flying motorcycle, the fuselage tilts backward, increasing the fuselage resistance and the backward pull generated by the propeller to slow down the flying motorcycle. The battery energy storage of this aircraft is 20.1kWh, the hovering time is 17.1min, and the economic level flight speed is 100km / h, which can reach a level flight time of 45min. The maximum level flight speed is 120km / h, and the maximum level flight range can reach 92km. Figure 7 As shown, the flying motorcycle designed in this utility model has modular characteristics, and each part can be disassembled and stored to facilitate subsequent manufacturing and transportation, and in the event of damage to the parts, they can be quickly replaced for easy maintenance.

Claims

1. A manned flying motorcycle aircraft, characterized in that: It includes four sets of rotor systems, energy and flight control systems, flight control systems, landing gear, lift surfaces and fairings; a cavity is formed inside the fuselage to accommodate batteries and flight control systems; the rotor system is symmetrically installed on the fuselage, the landing gear is fixed on the fuselage, and the nose fairing and tail fairing are installed on the front and rear of the fuselage respectively; the lift surface is at an angle of 20 degrees to the propeller mounting plane; the lift surface adopts a delta wing structure, which has directional stability, enhances the aircraft's resistance to wind, and improves flight stability and controllability.

2. A manned flying motorcycle aircraft according to claim 1, characterized in that: Each rotor system consists of two coaxially mounted DC brushless motors, two propellers, and a protective cover.

3. A manned flying motorcycle aircraft according to claim 1, characterized in that: The energy and flight control system includes two battery packs, BMS, flight control navigation and communication links, which are used to control the motor speed and rudder angle to control the attitude of the aircraft.

4. The manned flying motorcycle aircraft according to claim 1, characterized in that: The flight control system consists of an instrument panel and a display for manual control by the flying motorcycle pilot.

5. The manned flying motorcycle aircraft according to claim 1, characterized in that: The landing gear is fixed to the fuselage to protect the aircraft and achieve smooth take-off and landing.

6. The manned flying motorcycle aircraft according to claim 1, characterized in that: The lifting surface includes a wing platform for mounting the wing and a lifting surface for generating lift.

7. A manned flying motorcycle aircraft according to claim 6, characterized in that: The wing platform is fixed to the fuselage with internal screws, and the lift surface is fixed to the wing platform with eight sets of screws. At the same time, two sets of wing diagonal braces are used to ensure the overall structural strength. The inside of the wing platform is hollow, and cables and signal transmission cables are led out from the inside to control the deflection of the rudder on the lift surface.

8. The manned flying motorcycle aircraft according to claim 1, characterized in that: The rotor protection cover is installed on the fuselage through four sets of wing arm mounting structures. There is a cavity in the middle of the rotor arm, and the cable is led out from the inside of the fuselage to connect with the motor. There is a motor mounting seat in the center of the rotor protection cover, and two sets of C14050 model motors are coaxially installed. Each set of motors is equipped with a 5424 propeller and a corresponding IG1-D3-060-080440-1 model electric speed controller.

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