潜水器大攻角范围内运动的仿真

Simulation of submersible motion in large attack angle

对于只靠剩余浮力(含负浮力)作用的潜水器垂直面内下潜、上浮运动,将会出现攻角琢在±120°内变化。此时进行运动性能研究,潜水器所受流体动力无法用传统的多项式表达方式表示。本文提出了直接利用流体动力试验结果,无需将其用多项式数学描述,借助于MATLAB/Simulink仿真技术,可方便地进行潜水器运动的仿真。

For a submersible whose descent/ascent motion in the vertical plane depends only on its residual buoyance （including negative buoyancy）, the attack angle may change from -120° to 120°.In this case,the traditional polynomial expression are no longer valid to describe the hydrodynamic forces of the submersible.This paper presents a method that directly uses the hydrodynamic forces of the model tests to study the motion of the submersible without using the polynomial expressions.It is very convenient to simulate the motion of the submersible with the MATLAB/Simulink.