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Improved aerodynamic rotor shape suitable for small and medium-sized unmanned tilt rotor aircrafts

A tilt-rotor, aerodynamic shape technology, applied in unmanned aerial vehicles, aircraft, rotorcraft, etc., can solve the problems of late start of tilt-rotor, complex design requirements of tilt-rotor blades, etc. The effect of high cruising efficiency, reduced form resistance and low actual power

Active Publication Date: 2021-06-18
零重力飞机工业(合肥)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The complex design requirements of the tiltrotor blade itself and the scarcity of foreign design reference materials make the development of the tiltrotor aircraft start relatively late in China

Method used

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  • Improved aerodynamic rotor shape suitable for small and medium-sized unmanned tilt rotor aircrafts
  • Improved aerodynamic rotor shape suitable for small and medium-sized unmanned tilt rotor aircrafts
  • Improved aerodynamic rotor shape suitable for small and medium-sized unmanned tilt rotor aircrafts

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The purpose of the present invention is to provide an improved rotor aerodynamic profile suitable for small and medium-sized unmanned tilt rotor aircraft, which improves the aerodynamic performance of the rotor aerodynamic profile in hovering and flying states.

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction wi...

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Abstract

The invention relates to an improved aerodynamic rotor shape suitable for small and medium-sized unmanned tilt rotor aircrafts. The improved aerodynamic rotor shape is characterized by comprising three blades, wherein each blade comprises a first basic airfoil profile C, a second basic airfoil profile A and a third basic airfoil profile A which are distributed from a blade root to a blade tip; and the second basic airfoil profiles A and the third basic airfoil profiles A are of the same basic airfoil profile type. According to the invention, the aerodynamic performance of the aerodynamic rotor shape in a hovering state and a flying state is improved.

Description

technical field [0001] The invention relates to the fields of rotor aerodynamics and computational fluid dynamics, in particular to an improved rotor aerodynamic shape suitable for medium and small unmanned tilt rotor aircraft. Background technique [0002] The appearance of the tilting rotor aircraft provides a new way of thinking for the modern warfare of the US military. After nearly 50 years of technological exploration, American researchers have successively developed experimental models of tilt-rotor aircraft such as XV-3 and XV-15, and successfully developed and produced the tilt-rotor aircraft "V -22 Osprey, its payload, range, cruising speed and other key flight performance far exceed its parent model. These outstanding features make it an important player in the US Navy's arsenal. And its follow-up model "V280 Warrior" is also in the stage of experimental flight test. [0003] The complex design requirements of the tilt-rotor blade itself and the scarcity of for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/467
CPCB64C27/467B64U10/10B64U30/20
Inventor 招启军张航张夏阳王博陈希赵国庆
Owner 零重力飞机工业(合肥)有限公司