地面效应对超低空空投任务性能的影响  

Influence of ground effect on task performance during ultra-low altitude airdrop

作　　者：刘日 徐明 刘永波 毛剑英 穆成新 李文斯 Liu Ri;Xu Ming;Liu Yongbo;Mao Jianying;Mu Chengxin;Li Wensi(Theoretic Training Department,Harbin Air Force Flight Academy,Harbin 150009,China)

机构地区：[1]空军哈尔滨飞行学院理论训练系,黑龙江哈尔滨150009

出　　处：《武汉科技大学学报》2018年第6期473-477,共5页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(61273141);航空科学基金资助项目(20141396012)

摘　　要：通过对某型运输机超低空空投改平和牵引阶段纵向及横航向模态特性的分析,研究了地面效应作用下飞机的气动特性,并参照相应的飞行品质规范,评估了地面效应对空投任务性能的影响。研究结果可为空投飞行控制律的设计及相应地面实验提供理论支持。Based on the analysis of longitudinal and lateral modal characteristics of a certain kind of transport during airdrop reposition and traction period at ultra-low altitude,the aerodynamic characteristics of transport in ground effect were investigated,and the influence of ground effect on the airdrop task performance was evaluated by referring to the flying quality standards.The results can provide theoretical basis for the design of airdrop flight control and corresponding ground experiments.

关 键 词：地面效应 超低空空投 飞行动力学 任务性能 飞行品质 

分 类 号：V249[航空宇航科学与技术—飞行器设计]