Tandem dual-rotor fixed-wing compound vertical take-off and landing aircraft
A vertical take-off and landing, fixed-wing technology, applied to vertical take-off and landing aircraft, aircraft, rotorcraft, etc., can solve problems such as easy flutter, low overall structural rigidity, large rotor span Effects of safety and comfort, and high workability
Active Publication Date: 2019-03-12
BEIHANG UNIV
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Problems solved by technology
[0005] 1. The conversion control of vertical take-off and landing aircraft based on tilt rotor technology is complex
[0006] 2. The rotor of vertical take-off and landing aircraft based on stalled rotor technology is the main load-bearing component in the level flight mode, and the rotor generally has a relatively large span, and the overall structural stiffness is lower than that of a general fixed wing surface, which is easy to fly when the flying speed is fast. Flutter and other aeroelastic problems occur, which is not conducive to high-speed flight
Method used
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Embodiment Construction
[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] The invention provides a tandem double-rotor fixed-wing composite vertical take-off and landing aircraft, which has the performance of vertical take-off and landing and high-speed level flight. like figure 1 As shown, the aircraft layout includes two special rotors 1, a fuselage 2, a fixed wing 3, two vector propellers 4, a vertical tail 5 and a horizontal tail 6. Described special type rotor 1 has two, is respectively positioned at the top of the head of fuselage 2 and the top of vertical tail 5, and both diameters are equal. The fixed wing 3 is located in the middle of the fuselage 2, between the projections of the two special rotors 1 on the horizontal plane, avoiding aerodynamic interference with the special rotor 1, that is, the leading edge of the fixed wing 3 wing root point to the fuselage head The distance of the center of rotation o...
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The invention discloses a longitudinal column type double-rotor-wing fixed wing combined vertical take-off and landing aircraft and belongs to the technical field of design of aviation aircrafts. The aircraft is composed of two special-shaped rotor wings, fixed wings, two vector propellers, an aircraft body, a vertical tail wing and horizontal tail wings. The two special-shaped rotor wings are located above the head of the aircraft body and above the vertical tail wing correspondingly. The diameters of the two special-shaped rotor wings are equal. The fixed wings are located between projections of the two special-shaped rotor wings in the horizontal plane. The two vector propellers are located on the rear edges of the fixed wings correspondingly and can deflect upwards or downwards by 20 degrees in the axis direction of the vector propellers. The aircraft has the capability of vertical taking off / landing and high-speed flat flight and can conduct switching to two modes in the air. Compared with conventional helicopters, the flat flight speed, the air range and the endurance of the aircraft are increased by about 50%, and the aircraft has wider operating range and higher operating capability and can replace helicopters in the future.
Description
technical field [0001] The invention proposes a new concept vertical take-off and landing aircraft combined with tandem dual-rotors and fixed wings, which has excellent vertical take-off and landing and high-speed level flight performance, and belongs to the technical field of aviation aircraft design. Background technique [0002] For conventional helicopters, due to the asymmetric airflow of the rotor in the forward flight working environment, the maximum forward flight speed is affected by the compression of the forward blades and the airflow separation of the backward blades. The maximum cruising speed is usually around 300km / h; Airplanes cannot hover and fly at low speeds. The compound helicopter combines the flight characteristics of the helicopter and the fixed-wing aircraft, thereby having both capabilities. Its application prospect is very broad and its economic prospect is good. There are mature vertical take-off and landing aircraft in foreign countries, such as ...
Claims
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IPC IPC(8): B64C27/28B64C29/02
CPCB64C27/28B64C29/02
Inventor 鲍蕊严德张啸迟李江波王耀坤李道春万志强蒋崇文
Owner BEIHANG UNIV