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Cross-medium aircraft capable of quickly entering water and water entering control method thereof

A cross-medium and aircraft technology, applied to aircraft, vehicles that can be converted into aircraft, rotorcraft, etc., can solve the problems of shortening the time of entering the water, excessive requirements for the strength of the body, and the water area should not have excessive wind and waves, etc., so as to achieve the difficulty of implementation small effect

Inactive Publication Date: 2021-07-27
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

The disadvantages are: 1. The water area required for landing is relatively large, and at the same time, the water area cannot have excessive wind and waves
2. The landing steps are cumbersome and take a long time
The disadvantages are: the impact on the aircraft is very large
[0007] At present, there is no better solution that can shorten the time of entering the water without placing too high requirements on the strength of the body

Method used

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  • Cross-medium aircraft capable of quickly entering water and water entering control method thereof
  • Cross-medium aircraft capable of quickly entering water and water entering control method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] This embodiment provides a fast water-entry 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 power unit includes a propeller 2 and a motor 3 for driving the propeller 2. The total thrust F of each motor in the power system is greater than or equal to 1.5G, and G is the gravity of the trans-medium aircraft. The above-mentioned design ensures that the power system does not generate spin torque when it is working. And it can drive the cross-medium aircraft to carry out stable air flight, submerged and medium conversion. The overall density of the trans-medium aircraft is g...

Embodiment 2

[0049] Based on the same inventive concept, this embodiment provides a water entry control method applied to the above-mentioned rapid water entry trans-medium aircraft, which specifically includes the following steps: controlling the trans-medium aircraft to hover above the water surface through the power system; controlling the power reduction of the power system Small, so that the height of the cross-medium aircraft is reduced until the cross-medium aircraft enters the water, decelerates when entering the water to reduce the impact of entering the water, after the aircraft enters the water, it can be manipulated underwater by adjusting the power.

[0050] In the control mode of the power system, there are only three basic control schemes, namely the gyro precession type, the multi-power differential type and the rudder surface type. All current control schemes for aircraft, ships, and submersibles use these three methods, or a combination of several methods. The gyro preces...

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Abstract

The invention discloses a cross-medium aircraft capable of quickly entering water and a water entering control method thereof, and solves the technical problems that a fixed-wing cross-medium aircraft is complex in structure and large in airframe weight. The cross-medium aircraft capable of quickly entering water is of a whole machine multi-rotor structure, the number N of rotors is an even number, N is greater than or equal to 4, the corresponding power system comprises n * N power units, n is a positive integer, each rotor wing is provided with the n power units, each power unit comprises a propeller and a motor used for driving the propeller, the total thrust F of the motors in the power system is larger than or equal to 1.5 G, G is the gravity of the cross-medium aircraft, the density of the whole aircraft is larger than the density of water in a water area to enter, and smooth water entering and submerging are guaranteed. According to the cross-medium aircraft, a multi-rotor structure is adopted, spinning torque cannot be generated when the power system works, the cross-medium aircraft can be driven to stably fly in the air, submerge and convert media, compatibility of the two working environments is effectively improved, and the cross-medium aircraft can quickly enter water.

Description

technical field [0001] The present application belongs to the technical field of unmanned aerial vehicles, and in particular relates to a rapid water-entry cross-medium aircraft and a water-entry control method thereof. Background technique [0002] The cross-medium vehicle 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 cross-medium aircraft breaks through the limitations of the traditional single-medium unmanned system platform. It has both the flight characteristics of the surface aircraft and the stealth characteristics of the underwater vehicle, so it has excellent environmental adaptability. At the same time, it can effective...

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