Review
Materials Science, Multidisciplinary
Ruiqian Wang, Chuang Zhang, Yiwei Zhang, Wenjun Tan, Wenyuan Chen, Lianqing Liu
Summary: This article systematically reviews the recent advances in soft underwater swimming robots based on different actuation methods and classifies and compares them according to the different swimming modes of underwater organisms. The results show that the robot needs to select the optimal design by choosing the appropriate actuation method and swimming mode for different swimming tasks and application scenarios.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Analytical
Minglun Zhang, Hongyu Zhou
Summary: This paper introduces a real-time underwater wireless optical communication system that achieves a high data rate of 135 Mbps and low bit error rate. The researchers developed a method for measuring the underwater attenuation coefficient and proposed a technique to estimate the maximum communication distance. Overall, this research demonstrates the successful implementation of a real-time UWOC system and provides valuable insights for further development in this field.
Article
Computer Science, Artificial Intelligence
Tomasz Praczyk
Summary: The paper introduces a neural control system for a swarm of underwater vehicles, consisting of a leader and follower vehicles. The leader guides the swarm along a predetermined trajectory, detects obstacles, and determines obstacle avoidance maneuvers for the whole swarm. The followers follow the leader in a specific formation, equipped with a neural control system designed using a neuro-evolutionary algorithm. The system receives information from the leader, sonar, and a camera observation unit, and has been proven highly effective in simulation.
KNOWLEDGE-BASED SYSTEMS
(2023)
Article
Multidisciplinary Sciences
Rusty C. Holleman, Edward S. Gross, Michael J. Thomas, Andrew L. Rypel, Nann A. Fangue
Summary: This study estimated the swimming behavior of juvenile Chinook salmon using acoustic fish telemetry and a hydrodynamic model. The results showed that the swimming speeds of the salmon were centered around 2 body lengths/second, and included different behaviors such as positive rheotaxis, negative rheotaxis, lateral swimming, and passive transport. Lateral movement increased during the day, and positive rheotaxis increased in response to local hydrodynamic velocities.
Article
Engineering, Marine
Xinhui Zheng, Qiyan Tian, Qifeng Zhang
Summary: As humans show increasing interest in ocean resources, underwater vehicle-manipulator systems (UVMSs) are playing a vital role in ocean exploitation. To address the challenges of precise operation in underwater narrow spaces, a fly arm underwater vehicle manipulator system (FAUVMS) with manipulators as its core has been proposed. However, this system faces dynamic coupling effects due to the combination of small vehicles and big manipulators. To overcome this, a robust adaptive controller combining an extended Kalman filter (EKF) for state estimation and prediction of disturbances, and a chattering-free sliding mode control (SMC) for error convergence, has been proposed. Simulation results demonstrate that the proposed method outperforms traditional methods in terms of convergent speed, robustness, adaptiveness, and tracking accuracy.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Marine
Sijie Hu, Rendong Feng, Zhanglin Wang, Chengcheng Zhu, Zhikun Wang, Ying Chen, Haocai Huang
Summary: This study successfully addresses the issue of internal inspection in underwater pipeline maintenance. A depth-fixed line tracking control solution is proposed using a circular dish-shaped underwater helicopter (AUH) and an underwater image processing algorithm is utilized to identify the pipeline line accurately.
Article
Engineering, Biomedical
Luciano G. Fernandes, Paulo R. Trenhago, Raul A. Feijoo, Pablo J. Blanco
Summary: The study presents a compartmental model of the cardiorespiratory system with pulsatile blood flow, gas transport, and closed loop mechanisms of regulation. Short timescale regulatory actions include baroreflex, peripheral, and central chemoreflex feedback. Simulations show consistent responses with physiological and theoretical data, suggesting the model's potential for understanding major regulatory mechanisms in cardiovascular and respiratory systems under normal and abnormal conditions.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Pengxiao Bao, Liwei Shi, Zhan Chen, Shuxiang Guo
Summary: The ocean is a significant strategic resource that has led to the development of underwater robot technology due to insufficient development and use of the ocean and increased attention to it. The limitations of one underwater robot and the need for in-depth marine exploration have sparked research on underwater multi-robot systems. However, the shielding effect of seawater leads to weak communication, making it difficult for multi-robot systems to form. Therefore, a vision-based underwater formation method combining the robot's vision system with the leader-follower structure is proposed and proven effective through underwater formation experiments, with analysis of the coordination period and error of the control system.
Article
Robotics
Mohammad Sharifzadeh, Yuhao Jiang, Daniel M. Aukes
Summary: The concept of using preferential buckling of curved beams to generate positive net thrust and moments in swimming robots, both passively and actively, is explored in this study. Design optimization and experimental gait searches have shown the effectiveness of this approach in various swimming strategies.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Hongyu Zhou, Minglun Zhang, Xiaozheng Wang, Xiaomin Ren
Summary: This paper establishes the mathematical model of underwater wireless optical communication (UWOC) and proposes three methods for system implementation: atmospheric equivalent channel, water quality measurement, and calculation of distance in the deep sea. Through experimental verification, the system can achieve high-speed communication in different environments with low bit error rate (BER).
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Review
Sport Sciences
Jesus J. Ruiz-Navarro, Francisco Cuenca-Fernandez, Ross Sanders, Raul Arellano
Summary: This systematic review aimed to identify the key factors that modulate undulatory underwater swimming (UUS) performance and provide valuable information for coaches and sports science practitioners. The review found that factors such as kicking frequency, vertical toe and body wave velocity, joint angular velocity, distance per kick, joint amplitudes and mobility, and body position significantly influence UUS performance. However, further research is needed to investigate the effects of muscle activation and muscle strength.
JOURNAL OF SPORTS SCIENCES
(2022)
Article
Automation & Control Systems
Mingxue Cai, Yu Wang, Shuo Wang, Rui Wang, Long Cheng, Min Tan
Summary: This article presents a novel STFC framework for UVMS using NMPC method, C/GMRES algorithm, and TD to alleviate computational burden and system noise. By predicting future seabed terrain using a depth gauge and an altimeter, the tracking accuracy of the system is improved.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
Article
Engineering, Multidisciplinary
Yingqin Zeng, Cancan Rong, Conghui Lu, Xiong Tao, Xiaobo Liu, Renzhe Liu, Minghai Liu
Summary: This article proposes a novel transmitter for wireless power transfer in the marine environment, which greatly improves misalignment tolerance and transfer performance. By flexibly designing the transmitter, a circular uniform magnetic field zone with a diameter of 30 cm can be achieved in the charging plane. Experimental results show that the proposed transmitter has better performance in output power and power transfer efficiency.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
Article
Engineering, Multidisciplinary
Faheem Ahmed, Muhammad Waqas, Bushra Shaikh, Umair Khan, Afaque Manzoor Soomro, Suresh Kumar, Hina Ashraf, Fida Hussain Memon, Kyung Hyun Choi
Summary: In this paper, the design, fabrication, and characterization of a multi-material bio-inspired soft Octopus robot were proposed. The robot, capable of swimming and mimicking the gait pattern of a real octopus, was created using 3D printed molds and various materials.
JOURNAL OF BIONIC ENGINEERING
(2022)
Article
Automation & Control Systems
Mingxue Cai, Shuo Wang, Yu Wang, Rui Wang, Min Tan
Summary: This article introduces a coordinated vehicle-manipulator control method for an underwater biomimetic vehicle-manipulator system, utilizing various algorithms to achieve practical floating autonomous manipulation. Experimental results confirm the feasibility of the proposed control strategy.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
