水下航行体触网关联体运动建模与仿真分析

Modeling and Simulation Analysis on Associated Body Motion of Underwater Vehicle Touching Net

摘要:

为防止水下航行体攻击水面舰艇，提高水面舰艇的防御和生存能力，根据尾流自导水下航行体的攻击特性，在舰艇尾流后方布撒拦截网是直接、有效的对抗手段之一。为了深入了解水下航行体触网关联体的运动特性，通过建立水下航行体触网关联体仿真运动模型，得到了水下航行体在不同触网位置下关联体的运动状态变化规律。结果表明：1)水下航行体触网后，速度逐渐降低，最终趋于稳定，稳定速度的大小与触网位置和关联体质量基本无关；2)配重的速度随时间变化关系为先迅速增大，后逐渐降低。仿真结果对舰艇反水下航行体拦截网设计研究具有一定的参考意义。

关键词:舰艇防御;拦截网;关联体运动;建模仿真

Abstract:

In order to prevent surface ships from attacks by underwater vehicles and improve the defense and survivability of ships，launching intercept nets behind the wake of ships according to the attack characteristics of wake homing underwater vehicles is one of the direct and effective countermeasures. On the purpose of deeply understanding the kinetic characteristics of associated body of underwater vehicles touching the net，this paper obtains the motion states change law of the associated bodies of underwater vehicles touching the net at different touching positions by establishing the motion simulation model of the associated body of underwater vehicles touching the net. The results show that：1)after the underwater vehicle touching the net，the speed gradually decreases and finally tends to be stable，and the value of stable speed is basically irrelevant to the net touching position and the mass of the associated body；2)the variation relation between the speed of counterweight and time is that it first increases rapidly and then decreases gradually. The simulation results provide certain reference value for the design and research of anti-underwater vehicle interception network.

Key words:ship defence;intercept net;associated motion;modeling and simulation