Amphibious cross-medium aircraft and cross-medium control method thereof

A technology for amphibious straddle and aircraft, which is applied to aircraft, vehicles that can be converted into airplanes, rotorcraft, etc., and can solve the problem of immature and reliable realization of cross-medium flight, unmanned aerial vehicle platforms have arduous tasks, and cannot be mass-produced and put into operation and other issues, to achieve the effect of less difficulty in implementation, avoidance of inherent contradictions, and low implementation cost

Inactive Publication Date: 2021-07-30
航科创新科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up the above, in various scientific research institutions at home and abroad, the existing achievements are not mature and reliable to achieve cross-medium flight
Some cannot achieve autonomous cross-medium, and can only navigate in a single-medium environment; some use variant structures to achieve cross-medium flight, which increases the complexity
Therefore, none of the current research results can be mass-produced and put into operation in a short period of time.
With the continuous development of information, the task requirements of target users become more and more complex, and the tasks undertaken by the unmanned aerial vehicle platform become more and more difficult.

Method used

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  • Amphibious cross-medium aircraft and cross-medium control method thereof
  • Amphibious cross-medium aircraft and cross-medium control method thereof

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Embodiment 1

[0044] This embodiment provides an amphibious cross-medium aircraft, see figure 1 , the cross-medium aircraft is a multi-rotor structure, the number N of rotors 1 is an even number, and N≥4, such as quadrotors, hexacopters, octarotors, etc. The power system of the cross-medium aircraft includes n*N power units, n is a positive integer, n power units are installed on each rotor 1, such as a six-rotor UAV, each rotor is equipped with dual power, and there are 12 power units in total. indivual. The even-numbered design of the power unit ensures that no spinning torque will be generated when the power system is working.

[0045] The power unit includes a propeller 2 and a motor 3 for driving the propeller 2. The total power of each motor in the power system is P≥3P1, and P1 is the total power of each motor in the power system required by the cross-medium aircraft in a hovering state. called hovering power. Since the total power of the power system is generally evenly distribute...

Embodiment 2

[0064] Based on the same inventive concept, this embodiment provides a cross-medium control method applied to the above-mentioned amphibious cross-medium aircraft, including a water entry control method and a water exit control method.

[0065] The water entry control method specifically includes the following steps: controlling the cross-medium aircraft to hover above the water surface through a power system; controlling the power of the power system to reduce the height of the cross-medium aircraft until the cross-medium aircraft enters the water, and slows down when entering the water. After the aircraft enters the water, the power can be adjusted for underwater manipulation.

[0066] The water outlet control adopts a dynamic water outlet control strategy, adjusts the parameters of the motor and propeller in the power system, so that the thrust of the power unit when it is in the air is smaller than that when it is in the water, and controls the motor of the power system to ...

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Abstract

The invention discloses an amphibious cross-medium aircraft and a cross-medium control method thereof. The whole aircraft is of a multi-rotor structure, wherein the number N of rotors is an even number greater than 4; a power system comprises n * N power units, each rotor is provided with n power units, and each power unit comprises a propeller and a motor used for driving the propeller, the total power P of each motor in the power system is not less than three times of hovering power of the whole machine, and the total thrust is not less than 1.5 times of dead weight of the whole machine; the horizontal size t of the cross-medium aircraft is far larger than or far smaller than the wavelength of waves to enter and exit the water area, and the overall density is larger than the density of water to enter the water area. According to the amphibious cross-medium aircraft, a multi-rotor structure is adopted, the compatibility to two working environments is effectively improved, the amphibious cross-medium aircraft can rapidly enter water, the serious influence of water surface fluctuation on stable water outlet is jointly solved through size design and power design of a power system, the water outlet speed can be shortened to be within 1 s, and the water outlet reliability can reach 99.8% or above.

Description

technical field [0001] The application belongs to the technical field of unmanned aerial vehicles, and in particular relates to an amphibious cross-medium aircraft and a cross-medium control method thereof. Background technique [0002] The amphibious trans-medium aircraft integrates three unmanned working systems of air vehicle, surface vehicle and underwater vehicle, and can simultaneously have three functions of air flight, surface navigation and underwater diving on a single platform. The platform is not only maneuverable and flexible, but also better able to adapt to various environmental conditions, and has certain versatility and concealment. [0003] The amphibious cross-medium vehicle breaks through the limitations of the traditional single-medium unmanned system platform. It has both the flight characteristics of a surface vehicle and the stealth characteristics of an underwater vehicle, so it has excellent environmental adaptability. At the same time, it can effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60F5/02B64C27/08B64C27/12B64D27/24
CPCB60F5/02B64C27/08B64C27/12B64D27/24
Inventor 刘晓徽赵雪娇
Owner 航科创新科技(北京)有限公司
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