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Dynamic modeling and endurance enhancement analysis of deep-sea gliders with a hybrid buoyancy regulating system

机译：混合浮力调节系统深海滑翔机的动态建模与耐久性增强分析

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摘要

Buoyancy loss caused by hull deformation and seawater density variation presents key challenges for underwater gliders operating in deep-sea environments. This paper proposes a hybrid buoyancy regulating system (HBRS) based on energy accumulator for deep-sea gliders (DGs), which can effectively utilize the ocean pressure differential energy to realize buoyancy compensation. The proposed mathematical model of DG with HBRS is established by means of the Newton-Euler formalism and Boyier law, revealing the relationship between the buoyancy of DG and depth. The motion characteristics of DG with HBRS in zigzag and spiraling operating pattern are fully analyzed by comparisons among DG operating in ideal environment and more practical environment considering buoyancy loss, which shows that the HBRS facilitates a deeper diving depth and a more stable gliding attitude for DG. Energy consumption analysis is carried out by disassembling a profile into descent and ascent process and the results indicate that the employed HBRS is beneficial for energy saving, particularly in the process of the floating motion of DG. Moreover, a novel oil draining strategy is proposed to further reduce energy consumption of DG with HBRS. The results of various simulations and experiments validate effective improvement in operating efficiency and energy saving of the presented system.
机译：船体变形和海水密度变异引起的浮力损失对深海环境运行的水下滑翔机具有关键挑战。本文提出了一种基于深海滑翔机（DGS）蓄能器的混合浮力调节系统（HBRS），其可以有效地利用海洋压差能力来实现浮力补偿。通过牛顿 - 欧拉形式和嗜好法律建立了与HBRS的DG的数学模型，揭示了DG和深度浮力之间的关系。通过在理想环境中的DG操作中的比较和螺旋式操作图案中的DG与HBRS的运动特性通过比较，考虑到浮力丧失，表明HBRS促进了更深的潜水深度和更稳定的滑动态度。通过将简档拆卸到下降和上升过程中，结果表明所用的HBRS有利于节能，特别是在DG的浮动运动过程中是有益的。此外，提出了一种新型石油排水策略，以进一步降低HBRS的DG能耗。各种仿真和实验的结果验证了所提出的系统的运行效率和节能的有效提高。

著录项

  • 来源
    《Ocean Engineering》 |2020年第2期|108146.1-108146.16|共16页
  • 作者

    Zhou Hexiong; Fu Jian; Liu Chunhu; Zeng Zheng; Yu Caoyang; Yao Baoheng; Lian Lian;

  • 作者单位

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Naval Architecture Ocean & Civil Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Naval Architecture Ocean & Civil Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

    Shanghai Jiao Tong Univ State Key Lab Ocean Engn Shanghai 200240 Peoples R China|Shanghai Jiao Tong Univ Sch Oceanog Shanghai 200030 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Deep-sea gliders; Hybrid buoyancy regulating system; Pressure differential energy; Buoyancy compensation; Dynamic modeling; Energy consumption analysis;

    机译：深海滑翔机;混合浮力调节系统;压差;浮力补偿;动态建模;能量消耗分析;

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