航行器水下筒式发射过程中浮筒水面分离运动仿真

航行器水下筒式发射过程中,水面分离是一个重要环节,影响到分离后航行器的飞行姿态。针对此问题,分析了水面分离时浮筒和航行器的受力情况,通过切片法建立航行器水面分离过程中的水动力模型,并利用MATLAB建立了浮筒水面分离的有效仿真模型,展示了分离过程中航行器参数的变化历程。通过与水池试验得到的结果比对,验证了仿真模型及方法的可靠性。仿真结果表明,在水面分离过程中航行器和浮筒的俯仰角速度绝对值逐渐减小。

Simulation on Water-surface Separation of Vehicle-in-container Launched Under Water

The separation of capsule and vehicle plays a significant role during water-surface separation process,which affects the initial motion attitude of vehicle after separation. Aiming at this problem,the forces on the capsule and the vehicle were analyzed,and the strip theory was used to set up the hydrody-namic model. By using MATLAB,the model of the separation of capsule and vehicle on the water surface was built,and the changing progress of capsule and vehicle during the process of separation was showed. The reliability of the model was proved by comparing simulation results with tank experiment results. The simulation results show that the absolute value of the pitch rate decreases during the separation process on water suface.