舰载机拦阻系统动力学建模与控制

DYNAMIC MODELING AND CONTROL OF CARRIER-BASED AIRCRAFT ARRESTING SYSTEM

提出了一种液压吸能和滑轮机构相结合的舰载机拦阻系统模型,然后建立了计入拦阻索弹性的拦阻系统非线性动力学模型.基于高斯伪谱方法获得了舰载机拦阻过程的最优控制轨迹,并应用线性二次型最优控制跟踪该最优轨迹,数值结果验证了该方法的可行性,最后讨论了空气阻力与甲板摩擦力对控制过程的影响.

Starting with the analysis of the force on a carrier-based aircraft, this paper presented a kind of hydraulic energy absorber and sheaves, and then the nonlinear dynamic model with arresting cable elasticity. To control the slide of the carrier-based aircraft along with an optimal trajectory, Gauss Pseudo-spectral Method （GPM） was used to obtain the optimal trajectories of state variables in the arresting process, and then LQR method was used to track the optimal trajectories. Finally, the influences of air drag and deck friction on the arresting dynamics were discussed on the basis of numerical computations.