A tail-push type rudderless double-ducted unmanned aerial vehicle

Abstract

The invention discloses a tail-push double-duct unmanned aerial vehicle without rudder surfaces, which belongs to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle includes a fuselage, landing gear, wings, ducts, ducted fans and tail rotors. , two ducts are arranged on the outer sections of the wings on both sides of the center of gravity to provide the main lift of the UAV and realize the rolling motion of the UAV through the differential speed of the ducts. The tail is horizontally arranged with a rotor system that can be periodically changed. Pitch and yaw control are performed through longitudinal and lateral periodic pitch changes, and forward or backward force is generated through collective distance control, so that the UAV has the ability to take off and land vertically, hover, fly forward and backward, and fly sideways. The unmanned aerial vehicle fully utilizes the characteristics of ducted power thrust, low noise, and high safety. The overall structure is compact and the payload space is large. It is suitable for low-speed aerial operations in dense environments such as buildings and jungles.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a tail-thrust type double-duct unmanned aerial vehicle without rudder surfaces. [0002] technical background [0003] The ducted UAV is compact in structure and has the function of vertical take-off and landing. The existence of the duct can effectively reduce the loss of the blade tip. The duct with a certain length can maintain the pressure difference between the upper and lower sides of the propeller disk. A certain intake suction can generate greater thrust than ordinary multi-rotors. Secondly, the duct can reduce the heat radiation and blade noise of the whole machine to improve concealment. Compared with helicopters, it does not have a large-diameter high-speed rotating rotor, and can approach the target at close range during flight, which is more suitable for air operations in dense environments such as jungles and buildings. In view of the ab...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tail-thrust double-duct unmanned aerial vehicle with no rudder surface. On the basis of the existing ducted unmanned aerial vehicle technology, it is proposed to use two ducts to provide the main lift of the whole machine, which has the advantages of conventional unmanned aerial vehicles. Aircraft fuselage and wings, and the rotor is arranged at the tail for propulsion and attitude control, so as to improve the series of problems such as poor attitude control characteristics of ducted UAVs, narrow task load space, and high use and maintenance costs

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