【作者】 王彬； 宋伟； 姜红建； 潘洪军； 朱世强；

【Author】 Wang Bin;Song Wei;Jiang Hong jian;Pan Hong jun;Zhu Shi qiang;Marine robotics institute,Zhejiang University;Institute of mathematical and information ,Zhejiang Ocean University;

【机构】 浙江大学海洋机器人研究所； 浙江海洋大学数理与信息学院；

【摘要】 现有深海采样器都依靠绞车或深潜器完成下潜、采样和回收等动作,整个采样过程受绞车、深潜器及机械手等辅助设备性能的影响较大。本文所提出的一种深海自主采样器,能够独立、自主地完成多水层水样的序列保真采集,并在完成采样动作后自主上浮至水面。面向该种采样器,本文理论研究了采样器回收过程中压力差和温度差对采样筒体积变化的影响,并建立了其有限元仿真模型。同时,设计了两种提高保压率的新型采样筒结构,仿真结果表明,该两种新结构尤其是拱形表面有利于提高采样筒的保压率。更多还原

【Abstract】 The existing deep-sea samplers usually rely on the winch or submersible to complete the actions, such like diving, sampling and recovery. Therefore, the sampling process is influenced by the performances of the manipulator and other auxiliary equipment. This paper has proposed a deep-sea autonomous sampler, which could independently complete water sampling in different water-depth levels and then return to the water surface. The influence of pressure difference and temperature on the volume variation of sample bailer of the sampler is theoretically discussed. Then, a FEA model is built with the help of ANSYS Workbench. At the same time, two new inner structures of the sample bailer are designed, which is aimed to improve the pressure-holding performance of the sample bailer. Based on the simulation results, these two structures are effective to improve the pressure-holding performance of the sample bailer, especially the structure with the Cambered surface.更多还原