Results 11 to 20 of about 19,894 (59)

Dynamic simulation of ship fender structure anti-collision

open access: yesZhongguo Jianchuan Yanjiu, 2022
Objectives This study aims to investigate the dynamic coupling effect of "hull-fender-dock" during ship berthing.MethodsUsing the nonlinear finite element method, a port side and fender structure finite element model is established to simulate the ...
Yi HU   +4 more
doaj   +1 more source

High Quality Multi-Zone and 3D CFD Model of Combustion in Marine Diesel Engine Cylinder

open access: yesPolish Maritime Research, 2023
The paper presents a 3D model of the processes taking place in the cylinder of a large 4-stroke marine engine. The model is based on CFD calculations performed on the moving mesh. The modelling range includes the full duty cycle (720° crankshaft position)
Cuper-Przybylska Dominika   +3 more
doaj   +1 more source

Guided Waves in Ship Structural Health Monitoring – A Feasibility Study

open access: yesPolish Maritime Research, 2023
Ships and offshore structures operate in a severe corrosion degradation environment and face difficulty in providing long-lasting corrosion protection. The Classification Societies recommend regular thickness measurements leading to structural component ...
Roch Emil   +3 more
doaj   +1 more source

Energy Management Strategy Considering Energy Storage System Degradation for Hydrogen Fuel Cell Ship

open access: yesPolish Maritime Research, 2023
A hybrid energy system (HES) including hydrogen fuel cell systems (FCS) and a lithium-ion (Li-ion) battery energy storage system (ESS) is established for hydrogen fuel cell ships to follow fast load transients.
Cao Wei   +3 more
doaj   +1 more source

Image Processing Method for Cargo Container Identification in a Stack Within the Cargo Temperature Control and Fire Safety System on Container Ships

open access: yesPolish Maritime Research, 2023
The current research is focused on the identification of cargo containers in a stack from their images in the infrared and visible spectra, in order to locate the container-origin of ignition within the cargo temperature control and fire safety system ...
Konon Vladyslav
doaj   +1 more source

An Installation Angle Error Calibration Method in an Ultra-Short Baseline System Based on a Dual Transponder

open access: yesPolish Maritime Research, 2023
The installation error of an acoustic transceiver array is one of the important error sources in an ultra-short baseline (USBL) system. In a USBL system with a positioning accuracy of 0.5%, an installation error angle of 1° will lead to a positioning ...
Liu Baoheng   +5 more
doaj   +1 more source

Feasibility study of 10-kHz Coastal Acoustic Tomography System for current monitoring in the Persian Gulf

open access: yesنشریه مهندسی دریا, 2020
Acoustic Tomography (AT) technique is widely used in developed countries for water resources monitoring of the oceans, seas, and rivers. The 10-kHz Coastal Acoustic Tomography System (CATS) is previously applied to monitor coastal seas in the scale of ...
Masoud Bahreinimotlagh   +5 more
doaj  

Target Tracking Algorithm for Underwater Acoustic Sensor Networks under DoS Attack

open access: yes水下无人系统学报
By considering the effect of underwater denial of service(DoS) attack and sound line stratification, the problem of target tracking based on an underwater acoustic sensor network(UASN) was studied in this paper. Firstly, a UASN architecture consisting of
Jing YAN   +3 more
doaj   +1 more source

Design and Simulation Analysis of Sound Absorption Structure for Acoustic Detection-Based Underwater Gliders

open access: yes水下无人系统学报
The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders. In order to address this problem, this paper introduced sound absorption structure into the study of ...
Donghai ZENG   +5 more
doaj   +1 more source

Error Compensation for Dead Reckoning Based on SVM

open access: yes水下无人系统学报
In the use of machine learning methods for error compensation in dead reckoning of an autonomous undersea vehicle(AUV), the neural network algorithm is commonly used.
Xin LI   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy