摘要
现有飞机起落架总体布置参数设计的规范和要求主要适用于传统战斗机,如果按此规范和要求设计推桨式察打一体无人机起落架将带来诸多问题。从推桨式察打一体无人机的布局和飞行特点入手,通过对起落架总体布置参数的定义和内涵进行分析,提出一种适合推桨式察打无人机起落架总体参数和总体布置的设计方案,对察打一体无人机起降特点进行分析;对比“捕食者B”无人机起落架总体布置参数,验证本文设计方案的有效性。结果表明:擦地角可减小,建议不小于6°(静态,含间隙);防倒立角可减小,建议11°~12°(静态);停机角范围可适当减小,建议-2°~-1°;起落架总体布置方案可选择机身式、较长的外八字形起落架布置型式。
The existing specifications and requirements for the overall layout parameter design of aircraft landing gear are mainly applicable to traditional fighters.If the landing gear of pusher propeller reconnaissance/strike unmanned aerial vehicle(UAV)is designed according to these specifications and requirements,it will cause many problems.Proceeding from the layout and flight characteristics of the pusher propeller reconnaissance/strike UAV,a design scheme suitable for the landing gear overall parameters and overall layout of the pusher propeller reconnaissance/strike UAV is proposed by analyzing the definition and connotation of the landing gear overall layout parameters.The takeoff and landing characteristics of the integrated reconnaissance/strike UAV are analyzed.The overall layout parameter of Predator B UAV is compared to verify the effectiveness of the proposed design scheme.The results show that the tail down angle can be reduced,which can be set not less than 6°(static,containing clearance).The turn over angle can be reduced,which can be set within 11°~12°(static).The parking angle can be reduced,which can be set within-2°~-1°.The main landing gear arrangements can choose this type,which is installed onto fuselage of UAV,at extended position,the main landing gear is at the lower side of fuselage,with shape"/\".
作者
郑勇峰
沈君彦
ZHENG Yongfeng;SHEN Junyan(R&D Center,AVIC(Chengdu)UAS Co.,Ltd.,Chengdu 611730,China;General Department,AVIC Chengdu Aircraft Design and Research Institute,Chengdu 610073,China)
出处
《航空工程进展》
CSCD
2022年第6期144-149,共6页
Advances in Aeronautical Science and Engineering
关键词
推桨式
察打无人机
布局特点
起落架总体参数
起落架总体布置
pusher propeller
reconnaissance/strike UAV
layout characteristics
landing gear overall parameters
landing gear overall arrangement
