摘要
针对现代大飞机双列式空投及重型空投的发展现状,建立了全量模型研究空投过程中飞机动态特性问题。考虑空投过程中货物与飞机之间的运动耦合及货物非对称布局的影响,分别选取货物、全机作为独立实体,在惯性系下从牛顿力学基本原理出发,用矢量方法推导空投过程中货物和全机的动力学方程;经过坐标转换,得到动力学方程在体轴系下的形式,并补充运动学方程,使方程组满足封闭性要求,从而建立完整的矢量动力学模型。通过两个仿真算例,分析了飞机与货物运动耦合的影响及双列投放时的飞行特性,验证了模型的合理性。
Along with the development of the Dual Row Airdrop（DRAD） and the Heavy Airdrop for modern large transports,a full-state model is required to research the dynamic response of the transport in airdrop procedure.The cargo and the transport with inboard cargos are treated as two different entities with consideration of both the asymmetry of cargo layout and the dynamic coupling of cargo-transport.Then based on the principal theories of Newton mechanics,a set of dynamic equations are derived to describe the motions of cargos and the transport in terms of vector.After translated to the body frame,a full-state vector dynamic model is built.The dynamic response of DRAD and the effects of cargo-transport coupling are analyzed through two simulations.This model proves to be rational on the analysis of simulation results.
出处
《飞行力学》
CSCD
北大核心
2010年第3期9-12,共4页
Flight Dynamics
关键词
空投
建模
双列式空投
仿真
airdrop
modeling
dual row airdrop
simulation
作者简介
杨妙升（1985-），男，陕西户县人，硕士研究生，研究方向为飞行动力学与控制；
屈香菊（1956-），女，河北赵县人，教授，研究方向为飞行动力学与控制。
