摘要
综合考虑空气动力、发动机推力以及摩擦力等因素对舰载机拦阻过程的影响,以拦阻索释放速度作为拦阻过程的控制输入,建立计及拦阻索质量的舰载机偏心拦阻过程的系统状态方程。针对存在边值及过载约束的轨迹优化问题,采用高斯伪谱方法求解理想轨迹,基于GPOPS对飞机存在着舰质量、着舰速度偏差进行算例仿真。仿真结果表明:计及拦阻索质量可以更真实地反映拦阻索输出载荷的变化过程;利用高斯伪谱法可以获得偏心拦阻系统理想的最优轨迹。
Considering impacts of aerodynamic force, engine thrust force and friction, the dynamic state equation of a carrier- based aircraft in offcenter arresting process was established choosing the arresting cable velocity as a control variable and taking the arresting cable mass into consideration. Ideal optimal trajectory to the trajectory optimization problem with boundary constraints and overload constraints was solved with Gaussian pseudospectral method. Cases considering landing mass and landing velocity deviation of the aircraft were simulated with GPOPS. The results showed that the dynamic model taking the arresting cable mass into consideration can more really reflect the varying process of the arresting cable output-load; an ideal optimal trajectory can be obtained with Gaussian pseudospectral method.
出处
《振动与冲击》
EI
CSCD
北大核心
2012年第19期183-187,共5页
Journal of Vibration and Shock
关键词
舰载机
偏心拦阻
拦阻索
轨迹优化
高斯伪谱法
carrier-based aircraft
off-center arresting
arresting cable
trajectory optimization
Gaussian pseudospectral method
