摘要
在假设拦阻力完全由阻拦索提供的前提下,建立了包含阻拦索线弹性变形的飞机拦阻过程非线性动力学模型。为使原二阶微分方程系统易于控制,使用了高一阶的模型。基于高斯伪谱方法(GPM)对飞机和阻拦索接触后的降速曲线进行了优化,并应用反馈线性化闭环跟踪优化之后的降速曲线。结果表明,阻拦索的弹性对阻拦效果有很大影响,并且反馈线性化可弥补非线性最优化在实际应用中的缺陷。
Equations of motion of the aircraft arresting process taking the elasticity of the arresting cable into consideration were derived with the assumption that the arresting force was completely provided by the tension of the arresting cable. In order to make the original second order ordinary differential equation （ODE） system controllable, a higher order ODE was applied. After the deceleration curves were optimized using Gauss pseudospectral method （GPM）, a close loop control method was employed in tracking the optimal trajectory by feedback linearization. The results of the simulation demonstrate the influence of cable elasticity and the effec-tiveness of exact linearization as an add-on procedure of nonlinear optimization.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2009年第5期849-854,共6页
Acta Aeronautica et Astronautica Sinica
基金
江苏省"333高层次人才培养工程"计划
关键词
飞机拦阻
非线性优化
高斯伪谱方法
反馈
阻拦索
aircraft arresting
nonlinear optimization
Gauss pseudospectral method （GPM）
feedback
arresting cable
作者简介
张澍森（1983-）男，硕士研究生。主要研究方向：非线性动力学与控制。Tel：025-84891672;E-mail：shuishen1983@hotmail．com
金栋平（1964-）男，博士，教授，博士生导师。主要研究方向非线性动力学与控制。Tel：02584890251;E-mail：jindp@nuaa．du．cn;通讯作者。
