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Tumbler aircraft

A tumbler and aircraft technology, applied in the field of aircraft, can solve the problems of poor self-stability and high control cost, and achieve the effects of increasing the effective load, reducing the control cost and reducing the swing amplitude.

Active Publication Date: 2019-05-28
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: in order to solve the technical problems of poor self-stability and high control cost of the current coaxial dual-rotor aircraft, the present invention proposes a tumbler aircraft

Method used

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Embodiment Construction

[0025] see figure 1 — Figure 5 , the device includes a first wing, a second wing, a third wing, a fourth wing, a coaxial ducted fan duct, an upper blade of a coaxial ducted fan, a lower blade of a coaxial ducted fan, Coaxial ducted fan propeller hub, coaxial ducted fan bracket, tail deflector, tumbler system, carbon rod, battery, small holes on the surface of tumbler system, center body, landing gear, motor.

[0026] The upper blade of the coaxial ducted fan and the lower blade of the coaxial ducted fan have the same airfoil; Hub connection, the central body is divided into inner and outer sides, with beads between the two sides, the blade is fixed to the outer side, and the hub is fixed to the inner side, the beads can not only ensure that the outer side rotates around the inner side, but also ensure that the blade does not fall off; The upper blade of the coaxial ducted fan is at the same speed as the lower blade of the coaxial ducted fan, and the direction of rotation is...

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Abstract

The invention proposes an aircraft combining a tumbler system with a coaxial ducted fan. The tumbler aircraft adopts an all-electric drive, and has vertical take-off and landing, hovering and small speed forward flight performance; by adopting the coaxial ducted fan, the vertical take-off and landing efficiency of the aircraft can be improved; the wind resistance and self-stability of the aircraftcan be increased by adopting the tumbler system; tail flow deflectors are mounted inside a duct of the coaxial ducted fan, and can be used for controlling the airflow direction of the ducted fan, thereby ensuring that the aircraft has the small speed forward flight performance; certain small holes are arranged in the surface of the tumbler system located on the lower part of the coaxial ducted fan; when crosswind is applied, the airflow flows through the small holes, so that the applied force of the crosswind on the tumbler system and the swinging amplitude of the tumbler system in the self-stabilizing process after being affected by the crosswind can be reduced. According to the aircraft, by adopting the method of combining the tumbler system with the coaxial ducted fan, the self-stability and the anti-crosswind capability of the aircraft are increased and the control cost of the aircraft is reduced.

Description

technical field [0001] The invention relates to the field of aviation aircraft design, in particular to a tumbler aircraft, which combines a traditional tumbler system with a coaxial ducted fan, and is capable of vertical take-off and landing, hovering and low-speed forward flight. Background technique [0002] The coaxial dual-rotor has two upper and lower rotors that rotate forward and backward around the same theoretical axis. Since the two rotors turn in opposite directions, the torque generated by the two rotors will balance each other under the flight state of the same heading, thereby ensuring the aircraft's stability. Stability; coaxial dual rotors can generate unbalanced torque through the so-called collective pitch differential of the upper and lower rotors, and then realize the control of the aircraft. During the flight of the aircraft, the coaxial dual rotors are not only the lift surface, but also the vertical, horizontal and heading control surfaces. , so it ha...

Claims

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Application Information

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IPC IPC(8): B64C1/00B64C1/06B64C3/10B64C11/48B64C29/00B64D27/24
CPCY02T50/40
Inventor 吴翰王正平
Owner NORTHWESTERN POLYTECHNICAL UNIV
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