潜艇大攻角操纵运动预报

舱室破损进水是造成潜艇失事的主要险情之一.文中针对潜艇首部破损进水并采取应急吹除上浮时出现的大攻角运动状态,建立了潜艇大攻角操纵运动数学模型.通过数学模型中有、无考虑大攻角水动力修正的两种形式,对潜艇首部舱室破损进水的挽回操纵进行了仿真预报比较.仿真结果表明,潜艇在大攻角状态下的操纵运动预报,数学模型中考虑了大攻角水动力修正后的预报更加合理.而且,在潜艇舱室破损进水采取应急吹除挽回时,需要重点关注升降舵对纵倾的控制.

Prediction of submarine maneuverability with high angles of attack

One major hazard is flooding,which causes the loss of a submarine.In this paper,a prediction method of submarine motion with high angles of attack is introduced when blowing main ballast.A mathematical model of high maneuver was established,which took into consideration the force and moment items due to high angles of attack.The results of simulation in two different models show that the model of high attack angles is suited for emergency blowing ascent.Also,it is essential to control the trim after emergen...