鱼雷模拟战斗载荷排载时间的仿真研究与分析

Simulation Research of Unloading Time of Dummy Torpedo

针对空中入水鱼雷模拟战斗载荷即假雷的回收再利用,提出了假雷不扎入海底的排载时间问题。通过对假雷入水参数、衡重参数、流体动力参数等分析,给出了符合实际的仿真条件。在忽略排载冲击、低速时流体动力参数与雷体方程适应性等因素的前提下,开展了假雷非控弹道的仿真计算和分析。在给定的参考海区下,对假雷排载和不排载2种情况下深度弹道进行了对比计算,经验估算假雷排载后阻力系数增大2倍,得出了假雷不扎入海底的排载时间。

Aiming at the recovery and reuse of a dummy torpedo in torpedo test, this paper discusses the unloading time to ensure the dummy torpedo against getting to the see bottom. By analyzing the parameters about torpedo＇s entering water, weight and hydrokinetic parameters, practical simulation conditions are provided. Based on the precondition of ignoring unload impulsion and adaptability of hydrokinetic parameters to torpedo equation at low speed, the uncontrolled trajectory of dummy torpedo is simulated and analyzed. For the given reference sea, two depth curves of unloading and without unloading are calculated and compared. The resistance coefficient is empirically estimated to increase by two times after unloading, hence the unloading time for dummy torpedo not to sinking into the see bottom is eventually gained.