Emergency recovery motion law and control strategy of submarine high-pressure air blowing main ballast tank
Aiming at the problem of submarine motion posture during high-pressure blowing main bal-last tank emergency recovery,the mathematical model of high-pressure gas blowing and pressure re-lief of ballast tank was deduced and constructed by taking blowing high-pressure air and pressure gas in ballast tank as the research object.Combined with the mathematical model of submarine emergency recovery established by the research group,the emergency recovery process of flooded submarine was numerically simulated,and the change law of submarine motion posture under three different emer-gency recovery plan was analyzed.It is concluded that the constructed mathematical model can better describe the posture change law,and thus provide theoretical basis and technical support for the pre-diction of submarine emergency recovery motion law,the real-time evaluation of submarine motion state and the formulation of posture control scheme.