In order to find which launch parameters affecting the initial trajectory of torpedo launch by submarine,we build model of initial trajectory of torpedo,and study the movement in vertical plane. Then the simulation of initial trajectory of torpedo launch by submarine is carried out with Simulink language. We can get the result of that the rudder angle of torpedo and the launch velocity both affect the initial trajectory of torpedo. And the rudder angle of torpedo is the bigger factor. It is helpful to optimize the torpedo trajectory.%为研究潜射鱼雷发射参数设定对鱼雷初始弹道的影响,建立鱼雷初始弹道数学模型,对鱼雷在纵平面的初始弹道进行了研究,利用Simulink编程进行了仿真,得出在不同发射参数设定下弹道的袋深、最大超调量和到达设定深度所需时间.仿真结果表明,鱼雷横舵管制舵角和出管速度对鱼雷初始弹道都有影响,其中鱼雷横舵管制舵角影响较大,为进一步优化鱼雷弹道提供了依据.
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