A preliminary design of a movable laboratory for hadal trenches

Cui, Weicheng; Hu, Yong; Guo, Wei; Pan, Binbin; Wang, Fang

doi:10.1016/j.mio.2014.07.002

Cited by 29 publications

(6 citation statements)

References 23 publications

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“…To speed up development, HAST introduced a new funding mode called Bgovernmental support+private investment^and worked in close cooperation with Shanghai Rainbowfish Ocean Technology Co. Ltd. (RFOT). They intended to develop a comprehensive investigation system for the survey of hadal trenches (Cui et al 2014;Cui 2015;Cui and Wu 2018). The system consists of three FOD landers, one FOD ARV, one FOD HOV, and a 4800-ton displacement mothership.…”

Section: Fod Submersibles Under Development In Chinamentioning

confidence: 99%

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An Overview of Submersible Research and Development in China

Cui

2018

J. Marine. Sci. Appl.

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Given the recent success in the development of several submersibles in China, people's interest in the history of submersible development is increasing. This paper presents the history of submersible development in China, which can be briefly divided into three periods. The first one is the early period of hardship . Many prototype submersibles of HOVs, ROVs, and AUVs were developed at this time, but the main achievement was the establishment of special research organizations and the training of research and development personnel. The second period can be regarded as the quick development period (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015). All currently used submersibles were developed during this period. The most remarkable achievement was the successful development of 7000 m-deep manned submersible BJiaolong.^The third period aims to develop 11 000 m submersibles for challenging the full ocean depth (2016)(2017)(2018)(2019)(2020). In this period, two unmanned submersibles and two manned submersibles will be the significant indicators of achievement. If this 5-year plan can be successfully completed, China can play a significant role in the investigation of the deepest part of the oceans, namely, the hadal trenches (6500-11 000 m). Keywords Hadal trenches . Submersibles . Deep tow system . Lander . Glider . Autonomous and remotely operated vehicle (ARV) . Human-occupied vehicle (HOV) . Full ocean depth (FOD)

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Section: Fod Submersibles Under Development In Chinamentioning

confidence: 99%

“…Unmanned submersibles plus manned cabins are approximately equal to HOV. Both landers and ARV can be regarded as the test platforms for the development of the FOD HOV (Cui et al 2014). The key technical issues solved in the development of ARV have been described in Cui et al (2017).…”

Section: Main Technical Challenges For the Development Of Fod Submersiblesmentioning

confidence: 99%

An Overview of Submersible Research and Development in China

Cui

2018

J. Marine. Sci. Appl.

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“…I call the whole system as a movable laboratory for hadal trenches (Figure 3). The basic rationale and concepts for the comprehensive investigation system and the preliminary designs of FOD landers, ARV and HOV have been described in Cui et al [8].…”

Section: Annals Of Social Sciences and Management Studiesmentioning

confidence: 99%

On a Karmic Management Approach to Push Forward a Large Project

Cui

2019

ASM

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To act as a project leader to manage a large research or engineering project is a dream for many researchers. Traditionally only those with administration power can get the chance to be project leader and it may take him a long time to obtain the funding from governmental agency. In this paper, the author will introduce a karmic management approach for an ordinary researcher how to push forward a large project if he really has the dream. This approach has been practiced by the author in the last six years and reasonably validated.

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“…Besides the above vehicles, the hadal science and technology research center (HAST) of Shanghai Ocean University has decided to construct a movable laboratory which includes a mothership, three FOD landers, a FOD hybrid autonomous and remotely-operated vehicle (ARV), and an FOD HOV [20]. In such circumstances, an FOD ARV Dream Chaser was proposed for development in July of 2018, dedicated to filling the FOD unmanned submersibles gap at the time.…”

Section: Introductionmentioning

confidence: 99%

A Prototype Design and Sea Trials of an 11,000 m Autonomous and Remotely-Operated Vehicle Dream Chaser

Jiang

Lü

Wang

et al. 2022

JMSE

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To better study the biology and ecology of hadal trenches for marine scientists, the Hadal Science and Technology Research Center (HAST) of Shanghai Ocean University proposed to construct a movable laboratory that includes a mothership, several full-ocean-depth (FOD) submersibles, and FOD landers to obtain samples in the hadal trenches. Among these vehicles, the project of an FOD autonomous and remotely-operated vehicle (ARV) named “Dream Chaser” was started in July 2018. The ARV could work in both remotely-operated and autonomous-operated modes, and serves large-range underwater observation, on-site sampling, surveying, mapping, etc. This paper proposed a novel three-body design of the FOD ARV. A detailed illustration of the whole system design method is provided. Numerical simulations and experimental tests for various sub-systems and disciplines have been conducted, such as resistance analysis using the computational fluid mechanics method and structural strength analysis for FOD hydrostatic pressure using the finite element method and pressure chamber tests. In addition, components tests and the entire system tests have been performed on land, underwater, and in the pressure chamber in the laboratory of HAST, and the results are discussed. Extensive experiments of two critical components, i.e., the thrusters and ballast-abandoning system, have been conducted and further analyzed in this paper. Finally, the procedures and results of lake trials, South China Sea trials and the first phase of Mariana Trench sea trials of the ARV in 2020 are also introduced. This paper provides a design method for the novel three-body FOD ARV. More importantly, the lessons learned from the FOD pressure test, lake tests, and sea trials, no matter the success or failure, will guide future endeavors and the application of ARV Dream Chaser and underwater vehicles of this kind.

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A preliminary design of a movable laboratory for hadal trenches

Cited by 29 publications

References 23 publications

An Overview of Submersible Research and Development in China

An Overview of Submersible Research and Development in China

On a Karmic Management Approach to Push Forward a Large Project

A Prototype Design and Sea Trials of an 11,000 m Autonomous and Remotely-Operated Vehicle Dream Chaser

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