鱼雷上限控制规律的数学仿真与分析

Simulation and Analysis of Upper Limit Control Rule for Torpedo

由于声线弯曲和鱼雷跟踪声线,使鱼雷跟踪目标到较浅深度,因此鱼雷弹道设计通常有上限控制弹道。鱼雷航行中当到达上限深度时,上限控制优先,强行将鱼雷拉到上限以下。本文分析了上限控制的原理和弹道特点,给出了上限控制基本规律,对鱼雷以跟踪目标进入上限、跟踪保持结束进入上限以及在上限上方跟踪保持结束等3种不同控制方式进入上限的深度弹道进行了数学仿真计算。仿真结果表明,在复杂的上限控制逻辑下,上限深度弹道不是一种形式,可能存在不规则的2次或多次再进入上限的弹道形式,或者存在上限附近深度规则振荡的弹道形式,这些规律为实航中出现的一些特殊现象分析提供了理论依据。

Because bending and being tracked of sound line make torpedo tailing after target to smaller depth, upper limit control trajectory is usually considered in torpedo trajectory design. When torpedo arrives at the upper limit depth, upper limit control is performed compulsively, and then torpedo is pulled below the upper limit depth. The principle and trajectory feature of the upper limit control are analyzed, and the rule of upper limit control is presented. Moreover, the depth trajectories for torpedo to enter into the upper limit depth by three control modes during pursuing target are calculated and simulated. The results show that under the complicated upper limit control logic, the upper limit depth trajectory is not a simple form, but two or more irregular forms of re-entering into the upper limit depth, or regular oscillation form around the upper limit depth. These results may be expected to provide a theoretical basis for analyzing the problem in sea trial.