为了直观、量化地描述鱼雷在发射出管的运动状态，研究质浮心间距对于鱼雷航行质心轨迹及姿态角的影响，本文通过建立鱼雷发射的网格模型，运用重叠网格方法和6-DOF方法对鱼雷出管的运动状态进行数值仿真分析。对仿真数据进行分析，得到了鱼雷运动时质心轨迹随时间的变化规律、姿态角随时间的变化规律、质心轨迹和姿态角随发射速度的变化规律和质浮心间距对于鱼雷运动姿态角的影响，以及鱼雷运动时的瞬态速度场分布。为鱼雷发射后运动姿态的调整和控制提供理论依据。
In order to describe the movement state of the torpedo after launching outside the tube intuitively and quantitatively, and to study the influence of the distance of the center of mass and the center of buoyancy on the track of torpedo and the attitude angle. The model of Torpedo launching is established, using the overlapping mesh method and 6-DOF method numerically simulates torpedo motion after torpedo launch. The simulation results show that the track of mass center changes with time, the law of the attitude angle change with time, law for the track of torpedo mass center and attitude angle change with the velocity of launch, the effect of the center of mass and center of buoyancy distance on the attitude of the torpedo, and the movement of the torpedo. And the transient velocity field distribution. It provides a theoretical basis for the adjustment and control of the torpedo after launching.
2019,41(4): 137-141 收稿日期：2018-06-12
DOI：10.3404/j.issn.1672-7649.2019.04.027
分类号：TJ63+5;TJ630;TJ63+1
作者简介：华琦(1993-),硕士研究生,研究方向为航行器推进技术
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