水下航行体自由表面波浪尾迹红外特征及探测  

Infrared characterization and detection of free surface wave wake of underwater vehicle

作　　者：张士成[1] 杨桢[1] 杨立[1] 缪涛[1] 

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033

出　　处：《红外与激光工程》2012年第10期2615-2620,共6页Infrared and Laser Engineering

基　　金：国防预研项目(101050202)

摘　　要：水下航行体在航行过程中,会在海面形成特性波纹尾迹,可利用这种尾迹实现红外探潜。根据势流理论和"面元"法,模拟了水下航行体在海面上产生的波浪尾迹,采用射线跟踪算法建立了表面尾迹的红外成像模型,综合考虑海面环境因素的影响,研究了多种航速和潜深下自由表面尾迹不同探测方位角的红外成像特征。结果表明:低航速下尾迹红外特征主要表现为波形较小的横波特征,高航速下尾迹表现为较为明显的纵波特征;在航行过程中,可通过控制航速和潜深来有效规避海面特性波纹的产生;探测方位位于航行体航向方向更易发现尾迹波形特征;利用自由表面尾迹波形红外特征进行探潜,主要适用于潜艇高航速航行或通气管航行状态及其他潜深不大的情况。研究结果对红外探潜及潜艇隐蔽性航行具有重要的指导意义。A special wave pattern will be formed on the sea surface when the underwater vehicle cruises under water and it can be used for infrared detection of submarines. Based on potential flow theory and the ＂panel＂ method, the wave wake on the sea surface Of underwater vehicle was simulated. Considering the factors of sea environment, the ray tracing algorithm was applied to build the surface wake infrared imaging model. Then the infrared imaging characterization of free surface wake under different detection azimuths with a variety of speeds and submerged depths was proposed. Results show that the wake infrared characterization is mainly small transverse wave patterns under low speed, while it is more obvious longitudinal wave patterns under high speed; the special wave wake on the sea surface can be effectively avoided by controlling the speeds and submerged depths of underwater vehicle during the voyage; the wake characterization is easier to be detected as detection azimuth in the heading direction; the use of infrared characterization of free surface wake for detecting submarines is mainly suitable for submarines under high speeds or snorkel navigational The results are of guiding significance for infrared status and other low submerged depths situations. detection of submarines and submarines＇ hidden voyage.

关 键 词：红外探测 红外特征 水下航行体 波浪尾迹 射线跟踪算法 

分 类 号：TK124[动力工程及工程热物理—工程热物理]