舰载雷伞系统落点误差修正方法

Landing Error Correction Method of Shipborne Torpedo⁃Parachute System

为了修正舰船运动和海风引起的落点误差,首先建立了雷伞系统各阶段动力学模型并进行了编程计算,通过与试验结果的对比验证了动力学模型的准确性。之后,将发射方向和分离时间作为控制量,基于泰勒级数理论推导了落点误差与控制量之间的关系,提出了一种新的雷伞系统落点误差的修正方法。通过算例验证,该方法所得到的控制参数能够有效地修正雷伞系统的落点误差。同时,针对典型工况开展了本文方法与改进的多目标粒子群轨迹优化算法的对比研究,发现本文方法比改进的多目标粒子群优化算法拥有更快的收敛速度、更高的收敛精度和更少的计算消耗,可以对由舰船运动和海风引起的雷伞系统落点误差进行实时准确地修正,从而提高舰船发射布雷的精度。

To correct the landing error caused by ship movement and sea wind,dynamic model of torpedo-parachute system on each stage is established and simulated by programming,and the results of simulation and dynamic model are verified by real launching test.Then,launching direction and separation time are regarded as controlling parameters,and a new landing error correction method of torpedo-parachute system according to the relationship between landing error and controlling parameters which is derived based on Taylor series is proposed.It is verified by numerical calculation that the landing error can be corrected with the controlling parameters corrected by the proposed method.Compared with multi-objective particle swarm optimization algorithm,according to the numerical calculation on typical condition,the proposed method has faster convergence speed,higher precision and lighter computational cost.The precision of ship mine laying is improved through the proposed method which is used to real-time correct the landing error caused by ship movement and sea wind.