| 深海潜标姿态的动力学仿真分析与验证及沉降原因探究 |
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| 引用本文： | 王蓓,陈永华,于非.深海潜标姿态的动力学仿真分析与验证及沉降原因探究[J].海洋科学,2021,45(7):81-94. |
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| 作者姓名： | 王蓓 陈永华 于非 |
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| 作者单位： | 中国科学院海洋研究所 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 论文结合中国科学院海洋研究所2017年至2018年在西太平洋布放的一套6000m深自容式锚泊潜标系统，利用其温、深、盐及海流数据，参考卫星观测的海面资料，依据潜标结构组成，创新性地选用多体动力学软件ADAMS建立柔性缆体有限元模型，进行复原式姿态模拟，对此潜标异常沉降情况进行原因探究，提出减小因潜标大深度沉降导致影响的方法。本文所提出的柔性体模型，可依据海流参数变化改变有限元长度，自定义流阻状态，已被证明在较小海流和海流异常大两种分布模型的拟下，计算机有限元模型分析所得绝对沉降误差达缆绳总长0.18%和0.41%。通过计算机模型依据实际情况的模拟结果，最终印证异常沉降值的形成原因：（1）在系泊结构既定且安全布放的前提下，其沉降异常值的出现只能与其当日所处环境的海流分布状态相关。模型锚泊最大受力8621N，合理选择布放地点、潜标材料可降低系泊损坏风险；（2）若大洋中尺度涡形成和临近导致流速激增，其对整个系统的作用将决定锚系系统布放期间异常沉降深度，由于中尺度涡的形成与迁移具有可预报性，结合系泊深度和位置的及时调整可减小超深度沉降所导致的影响。
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| 关 键 词： | 潜标锚泊系统 姿态模拟 有限元模型 海流分布模型 |
| 收稿时间： | 2020/10/17 0:00:00 |
| 修稿时间： | 2020/12/7 0:00:00 |
Dynamic simulation analysis and verification of attitude of deep-sea submersible buoy and exploration of settlement causes |
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| WANG Bei,CHEN Yong-hu,YU Fei.Dynamic simulation analysis and verification of attitude of deep-sea submersible buoy and exploration of settlement causes[J].Marine Sciences,2021,45(7):81-94. |
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| Authors: | WANG Bei CHEN Yong-hu YU Fei |
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| Abstract: | The paper combines a 6000m deep self-contained mooring submarine system deployed in the western Pacific from 2017 to 2018 by the Institute of Oceanology of the Chinese Academy of Sciences, using its temperature, depth, salt and ocean current data, referring to the sea surface data observed by satellites, according to the submersible target Structural composition, innovative selection of multi-body dynamics software ADAMS to establish a finite element model of the computer flexible cable body, to carry out restoration posture simulation, to investigate the cause of the abnormal settlement of the submarine target, and to propose an early warning method for the submarine target to avoid large-depth settlement. The computer flexible body model proposed in this paper can change the finite element length according to the changes of ocean current parameters, and customize the flow resistance state. It has been proved that the computer finite element model analysis is absolutely based on the two distribution models of small ocean currents and large ocean currents. The settlement error amounts to 0.18% and 0.41% of the total rope length. According to the simulation results of the actual situation through the computer model, the reasons for the formation of the abnormal settlement value are finally confirmed: (1) Under the premise that all the structures of the submersible anchor system are established and safely deployed, the abnormal settlement value can only occur with the location The current distribution status of the environment is related. The maximum force of the model mooring is 8621N. A reasonable choice of placement location and submersible target material can reduce the risk of damage to the submersible target system.(2) If the formation and proximity of the mesoscale vortex in the ocean leads to a surge in flow velocity, its effect on the entire system will determine the anchoring system The abnormal settlement depth during deployment, due to the formation and migration of mesoscale vortices, can be predicted by modern satellite technology to reduce the impact caused by the ultra-deep settlement of the mooring system. |
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| Keywords: | submarine anchoring system attitude simulation finite element model ocean current distribution model |
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