Abstract: With developments in the intelligent swarm technology, the cooperation of autonomous undersea vehicle (AUV) swarms in performing underwater tasks has become an inevitable trend for the future development of such tasks. However, owing to the particularity of underwater environments, collaborative tas...
Abstract: Considering a manta ray as the bionic object, this paper proposes a design scheme for a bionic manta-ray robot fish with flexible pectoral fin propulsion. A motion control strategy is designed based on a central pattern generator(CPG), the influence of control parameters is analyzed, and the perform...
Abstract: Generally, the tail-slapping motion of underwater supercavitating projectiles has a significant impact on their ballistic stability and operational performance. In this study, a numerical model of such supercavitating projectiles integrating a dynamic mesh is established to investigate the impacts o...
Abstract: To address the flocking control problem of a crowded unmanned undersea vehicle (UUV) swarm under time-delay constraints, an adaptive flocking control approach was investigated using a multiscale bio-inspired mechanism. First, an adaptive flocking interaction model with a bio-inspired optimal neighbo...
Abstract: Attitude is an essential parameter in autonomous navigation. Existing high-precision navigation sensors are expensive and large. Therefore, miniaturized and low-cost autonomous navigation technologies have become the research focus. Inspired by biomimetics, an inversion estimation model of autonomou...
Abstract: To address path planning for unmanned surface vessels(USVs) in ocean environments affected by physical disturbances, such as ocean currents and obstacles, an energy-optimal algorithm based on improved reinforcement learning is proposed. First, a two-dimensional ocean-current model comprising multipl...
Abstract: To address the situation wherein an enemy submarine maneuvers in an unknown course when an anti-submarine surface ship is called, a genetic algorithm-based submarine search method is proposed. The method combines the ship sonar detection model, enemy submarine target motion model, ship search motion...
Abstract: Piezoresistive pressure sensors are sensitive to environmental changes. Ambient temperature changes would produce thermal drift, which affects sensor performance. This study entailed the use of the mind evolutionary algorithm(MEA)-back propagation(BP) neural network algorithm to establish an error c...
Abstract: To address the delay problem of underwater acoustic detection and communication in a master-slave autonomous undersea vehicle(AUV) cooperative positioning system, a time-delay processing method based on an interacting multiple model(IMM) algorithm is proposed. First, a cooperative positioning calcul...
Abstract: Magnetic anomaly signal detection has broad application prospects in offshore defense, which is an urgent problem for realizing remote and long-term monitoring. In this paper, an underwater magnetic anomaly detection model is proposed, and wavelet domain analysis and orthogonal basis decomposition d...
Abstract: Considering the difficulty in estimating the acoustic source motion velocity using an interference striation pattern of a broadband continuum spectrum in a low-frequency analysis and recording(LOFAR) spectrum at a low signal-to-noise ratio(SNR), a moving sound source velocity estimation method based...
Abstract: Subsea reverberation is the main source of interference when torpedoes detect targets in shallow waters where the sound velocity approximately satisfies the negative gradient distribution. In order to obtain the reverberation signal accurately, conveniently and reproducibly, and study its statistica...
Abstract: To improve the dynamic performance and robustness of the control system of permanent magnet synchronous motors (PMSMs) for unmanned undersea vehicles (UUVs) and simplify the structure of the control system, a single-loop control strategy based on generalized predictive control (GPC) is proposed. A n...
Abstract: Aiming at the friction heat generation of fuel pump piston oil films for underwater gas turbines, combined with the computational fluid dynamics dynamic grid and slip grid methods, user-defined function programming is performed according to the piston motion equation. Furthermore, a fuel-pump piston...
Abstract: This study employed the shear stress transport(SST) k-ω turbulence model, multiple reference frame(MRF) model, and ideal pump model to construct a numerical simulation model of water-jet propulsion for vehicle planing. The model was implemented in STAR-CCM+ software, and its feasibility was verified...
Abstract: The accuracy and reliability of observation data form the core of data quality control for wave gliders. An effective data quality control method is essential to promote the popularization and application of wave glider observation data. To improve the data quality of a wave glider, a new marine obs...
Abstract: The autonomous technology of unmanned equipment is currently the most dynamic frontier technology field. Therefore, improving the intelligence of decision-making is an inevitable trend in the development of future unmanned undersea vehicles (UUVs). Torpedo attack decision-making is a critical aspect...
Abstract: To study the initial trajectory of a wire-guided torpedo launched by a battery-activated outside tube, hydrodynamic theory was used to analyze the dynamics of the torpedo when sailing outside the tube. Subsequently, a dynamic model of the torpedo movement in the vertical plane was built based on the...
Abstract: The coupling effect of environmental stress and working stress directly affects the reliability, working life, and operational effectiveness of torpedo equipment. The research on the coupling effect for torpedoes is still in its infancy, and no systematic research has been conducted on the failure m...
Abstract: Underwater target detection by processing sonar images is of great military and civil significance. This paper comprehensively describes the principles, methods, algorithms, and development trends in underwater target detection based on sonar images. Initially, we divide the underwater target detect...
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ISSN: 2096-3920
CN: 61-1509/TJ
Editor-in-chief:Chunpeng DONG
Executive Chief Editor:Weijun CAI
Sponsor:China State Shipbuilding Corporation Limited
Sponsored by:Xi’an Precision Machinery Research Institute The Chinese Society of Naval Architects and Marine Engineers