Optimization method of double-wing layout time-limited carrying airdrop aircraft

An optimization method and carrying technology, applied in aircraft parts, design optimization/simulation, transportation and packaging, etc., can solve problems such as large wing torque, achieve enhanced wing torsion resistance, improve maneuverability, and improve longitudinal stability Effect

Active Publication Date: 2020-04-10
ZHENGZHOU UNIVERSITY OF AERONAUTICS
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Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an optimization method for carrying a

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  • Optimization method of double-wing layout time-limited carrying airdrop aircraft
  • Optimization method of double-wing layout time-limited carrying airdrop aircraft
  • Optimization method of double-wing layout time-limited carrying airdrop aircraft

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[0035] For the foregoing and other technical contents, features and effects of the present invention, please refer to the attachment below Figure 1 to Figure 7 It will be clearly presented in the detailed description of the embodiments. The structural content mentioned in the following embodiments are all referenced to the drawings in the specification.

[0036] Hereinafter, each exemplary embodiment of the present invention will be described with reference to the drawings.

[0037] The premise of the present invention is that the time-limited load airdrop requires a change in the weight limit. The present invention adopts the method of increasing lift. At present, the method of increasing lift mainly includes three methods: increasing speed, increasing lift coefficient, and increasing wing area. Due to the problem of non-torsion resistance of the wings in the limited-time heavy-duty airdrop aircraft, the torque of the wings is turned at high speed and the control effect is revers...

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Abstract

The invention relates to an optimization method of a double-wing layout time-limited carrying airdrop aircraft. The optimization method comprises the following steps: S1, calculating wing related dataaccording to power, weight and lift coefficients; S2, determining the span length and the pneumatic chord length of the upper and lower wings; S3, determining selection of the relative positions of the wings and conducting CFD numerical calculation verification; S4, verifying whether a result conforms or not; if yes, continuing the next step, and if not, returning to the third step; S5, comparinga pressure distribution curve with lift-drag characteristics; S6, performing CFD numerical calculation on a full-aircraft model; and S7, optimizing wing design. The use requirements are met, the problem that the wings bear too large torque is solved, and the longitudinal stability of the aircraft is improved.

Description

technical field [0001] The invention relates to the technical field of time-limited airdropping of aircraft, in particular to an optimization method for time-limited airdropping of aircraft with biplane layout. Background technique [0002] At present, aircraft carrying airdrops are widely used in two aviation fields, civil aviation and military aviation. Civil aviation is mainly used to transport living materials to disaster areas or poverty-stricken areas within a specified time; military aviation is mainly used to deliver weapons, ammunition and military supplies to battlefields, national defense borders, and exercise areas within a specified time. With people's requirements for resources and energy, aircraft carrying airdrops has played a more convenient role in our current life. [0003] In today's society, national defense and people's livelihood are particularly important to a country. National defense, as the foundation of a country's people's security, is an indis...

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Application Information

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IPC IPC(8): B64F5/00B64D1/08G06F30/20G06F30/15G06F111/10G06F119/14
CPCB64D1/08B64F5/00
Inventor 刘双燕黄新俊李洪元张赫天孙瑞明游泽宇
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS
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