一种潜标的水下姿态变化规律分析

Analysis of Attitude Variation for Submersible Buoy System

采集了布放和工作过程中锚系结构潜标的姿态变化信息,分析了潜标布放和工作过程姿态变化的规律。水下潜标存在一个周期40 s左右的沿竖直轴线的旋转振荡,同时还存在倾斜和俯仰变化。经分析,造成潜标旋转振荡的原因是柔性缆的扭力与潜标转动时尾翼的阻力相互作用,使潜标沿回转轴振荡。造成潜标倾斜的原因是标志浮标受风浪影响对潜标产生拉力。提出了在缆绳上加装自由转环以消除缆绳扭力、改变标志浮标系留位置等改进措施。重点列出了不同阶段的姿态变化曲线,通过曲线显示的信息可以回溯当时的工作环境和过程。

The attitude information of the submersible buoy in deployment and operation are collected and analyzed. The submersible buoy rotates and vibrates along the vertical axis during a cycle of about forty seconds, it also moves in the slope and pitch directions. It is analyzed that, the submersible buoy rotation and vibration is caused by the interaction of the torque force of flexible cables and the resistance force of the buoy rotation. The submersible buoy slope is caused by the pull force from the wind and wave acting on the mark buoy. It is suggested that the free swivel can be added on the cable to reduce torque force and the mooting position of the marker should be changed. The attitude variation curves on the different stages are all listed, which can be used to trace the operating environment and process of that time.