潜艇低速通过海洋密度锋时运动特性仿真研究

Motion Characteristics Analysis of Submarine Passing Through Ocean Front in Low-Speed

在海洋锋动特性问题的研究中,由于海洋锋作为海洋中普遍存在的一种现象,会对航行在其中潜艇的垂直面运动姿态产生可观的影响。特别是当潜艇低速通过海洋密度跃升层时,由于浮力会发生明显的变化,如果不能及时有效地对潜艇实施操纵控制,会严重危害到潜艇航行安全。为解决上述问题,根据潜艇通过海洋密度锋区的受力特点,建立潜艇在海洋密度锋中的垂直面运动模型。通过潜艇垂直面运动仿真,分析了潜艇低速通过海洋密度跃升层的运动特性,结果表明,在不同航速条件下潜艇通过海洋密度峰时,具有不同的运动特性,当潜艇在海洋密度峰中航行时,应根据航速来采取相应的操纵措施。

The ocean front is one kind of appearance of universally existence in the ocean, and can give deeply influence on the vertical motion gesture of the submarine. When a submarine passes through the ocean pycnocline in low - speed, it can be seriously harmful to submarine＇s safety if the operator cannot take active operating control in time owing to the fact that his buoyancy changed clearly. According to the motion characteristic of the submarine through the ocean pycnocline, we built the vertical motion model of the submarine in the ocean pycnocline. By way of submarine vertical motion simulation, we analyzed the motion characteristic of the submarine through the ocean pycnoeline in low - speed. The result indicates that the submarine possessed different motion properties when passed through the ocean pyenocline under different speed, and should adopt the corresponding measure operating according to the speed when the submarine sailing in the ocean pycnocline.