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Advancements in Deep-Sea Equipment and Technology, 3rd Edition
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Advancements in Deep-Sea Equipment and Technology, 3rd Edition

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Ocean Engineering".

Deadline for manuscript submissions: 1 May 2025 | Viewed by 1747

Special Issue Editors

Prof. Dr. Weicheng Cui

E-Mail Website
Guest Editor
Deep Sea Technology Research Lab, School of Engineering, Westlake University, Hangzhou 310024, China
Interests: multidisciplinary design optimization and its application; deep-sea equipment development; manned/unmanned submersibles; lander/buoy development; manipulator/propeller/high-pressure seawater pump/underwater camera and other important components development; metal/organic glass/solid buoyancy material damage mechanism; strength and fatigue life prediction of structures
Special Issues, Collections and Topics in MDPI journals
Dr. Daqi Zhu

E-Mail Website
Guest Editor
Research Institute of Underwater Vehicles and Intelligent Systems, University of Shanghai for Science and Technology, Shanghai, China
Interests: autonomous underwater vehicle and multi-sensor fusion; fault diagnosis
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jian Zhang

E-Mail Website
Guest Editor
Jiangsu Provincial Key Laboratory of Advanced Manufacture and Process for Marine Mechanical Equipment, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Interests: underwater equipment biomimetic technology; modern design theory and methods of marine equipment, submersibles; pressure-resistant structures; buckling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The conflict between populations, resources and the environment in the twenty-first century has made the ocean a strategic space in which human society can achieve sustainable development. To study the ocean environment and exploit ocean resources, a fundamental understanding of complex and interwoven ocean processes across a broad range of spatial and temporal observational scales is required. This understanding is heavily reliant on the use of various research fleets and equipment that support increasingly complex, multidisciplinary, multi-investigator research projects, including those in support of autonomous technologies, ocean monitoring and observing systems, remote sensing and on-site sampling, and modeling. Various underwater submersibles are the main working forces for the research fleet. This is the third Special Issue of a continuous series of this field; relevant experts are invited to report the latest progress on Developments in Deep-Sea Equipment and Technology.

In this Special Issue, relevant experts are invited to report the latest progress on Developments in Deep-Sea Equipment and Technology. These include autonomous technologies, ocean monitoring and observing systems, remote sensing and on-site sampling, and modeling. This volume is a continuation of two previous Special Issues.

We particularly welcome papers on the design, analysis, and testing of various new methods, theories, sensors and equipment used in deep-sea technology areas. In particular, this Special Issue will work in close cooperation with the 14th International SUT (China) Technical Conference. We will encourage authors participating in this conference to submit their extended papers to this Special Issue and welcome interested authors to attend this conference.

Prof. Dr. Weicheng Cui
Dr. Daqi Zhu
Prof. Dr. Jian Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • deep-sea equipment
  • submersible
  • glider
  • autonomous underwater vehicle (AUV)
  • remotely operated vehicle (ROV)
  • human-occupied vehicle (HOV)
  • autonomous and remotely operated vehicle (ARV)
  • robotic fish
  • fish schooling
  • underwater charging
  • ocean-based renewable energy
  • ocean monitoring and observing system

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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21 pages, 13379 KiB  
Article
Investigation on the Welding Residual Stress Distribution in Multi-Segment Conical Egg-Shaped Shell
by Yongmei Zhu, Ao Sun, Longbo Zhou, Lihui Wang and Xilu Zhao
J. Mar. Sci. Eng. 2025, 13(3), 578; https://doi.org/10.3390/jmse13030578 - 15 Mar 2025
Cited by 1 | Viewed by 490 | Correction
Abstract
The egg-shaped pressure shell, an essential component of manned submersibles, has garnered significant attention from researchers. However, the fabrication of such shells, particularly the welding process used to connect petals or frustums into a shell blank, has raised several concerns. This study investigates [...] Read more.
The egg-shaped pressure shell, an essential component of manned submersibles, has garnered significant attention from researchers. However, the fabrication of such shells, particularly the welding process used to connect petals or frustums into a shell blank, has raised several concerns. This study investigates the distribution of welding residual stresses in a multi-segment frustum-assembled egg-shaped shell using a thermal–elastic–plastic method under an instantaneous heat source. A numerical model for a 12-segment frustum-welded egg-shaped shell is developed, and welding simulations are performed. The model’s boundary conditions are defined by cyclic symmetry, with a mesh element size of 2 mm to enhance computational efficiency. The results are validated through experimental tests. The findings indicate that the residual stress around the weld is tensile, while compressive stress is present on both sides of the weld. The length of the generatrix and the relative inclination angle significantly affect the distribution and overlap of circumferential residual stress, whereas axial residual stress primarily influences its magnitude. Finally, a simplified numerical model of the egg-shaped shell is proposed, with its simulation results showing good agreement with the distribution of welding residual stresses on the shell surface. This study provides valuable insights for optimizing the welding process of egg-shaped pressure shells in manned submersibles. Full article
(This article belongs to the Special Issue Advancements in Deep-Sea Equipment and Technology, 3rd Edition)
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29 pages, 15477 KiB  
Article
Geometric and Mechanical Analysis of Selenium-Enriched Eggs
by Huinan Kang, Yunsen Hu, Sakdirat Kaewunruen, Xiaozhi Hu and Jian Zhang
J. Mar. Sci. Eng. 2025, 13(3), 525; https://doi.org/10.3390/jmse13030525 - 9 Mar 2025
Viewed by 710
Abstract
Geometric and mechanical analyses were performed on 82 selenium-rich eggs, which underwent hydrostatic testing as 2 raw eggs, 60 steamed eggs, and 20 emptied eggshells. By analyzing the geometric and mechanical properties of the egg, we can draw inspiration from its structural design [...] Read more.
Geometric and mechanical analyses were performed on 82 selenium-rich eggs, which underwent hydrostatic testing as 2 raw eggs, 60 steamed eggs, and 20 emptied eggshells. By analyzing the geometric and mechanical properties of the egg, we can draw inspiration from its structural design to create a pressure shell capable of effectively withstanding the immense water pressure in deep-sea environments. The major axis, minor axis, egg-shape coefficient, weight, thickness, volume, superficial area, and ultimate compressive strength were measured, and their correlations were analyzed. The thickness, egg-shape coefficient, and ultimate compressive strength were normally distributed, and many parameters were strongly correlated. Moreover, finite element analysis was conducted to evaluate the compressive resistance of egg-like pressure shells made from different materials, including metal, ceramic, resin, and selenium-enriched eggshell materials. The performance ratio of the ceramic shells was 2.6 times higher than that of eggshells, and eggshells outperformed metal and resin shells by factors of 2.14 and 4.49, respectively. The eggshells had excellent compression resistance. These findings offer novel insights into the design and optimization of egg-like pressure shells. Full article
(This article belongs to the Special Issue Advancements in Deep-Sea Equipment and Technology, 3rd Edition)
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1 pages, 137 KiB  
Correction
Correction: Zhu et al. Investigation on the Welding Residual Stress Distribution in Multi-Segment Conical Egg-Shaped Shell. J. Mar. Sci. Eng. 2025, 13, 578
by Yongmei Zhu, Ao Sun, Longbo Zhou, Lihui Wang and Xilu Zhao
J. Mar. Sci. Eng. 2025, 13(4), 678; https://doi.org/10.3390/jmse13040678 - 27 Mar 2025
Viewed by 123
Abstract
In the original publication, there was an error in the order of author names as published [...] Full article
(This article belongs to the Special Issue Advancements in Deep-Sea Equipment and Technology, 3rd Edition)
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