Wuhan Ship Development & Design Institute

SOCP-DistFlow Based Two-Stage Robust Scheduling of Shipboard Integrated Energy Systems Under Carbon Pricing

Existing and prospective maritime carbon-pricing regimes, together with uncertain renewable generation, complicate the low-carbon operation of shipboard integrated energy systems (SIES), particularly when network voltages and coupled electrical, heating, and cooling demands must...

Flame spread over flowing fuel under ignition delay: Spread and merging of flame front and fuel flow front

This paper investigates the flame spread over flowing liquid fuel under different ignition delays ( x ig ), substrate slopes ( θ ) and fuel discharge flow rates ( Q ). Focusing on flame front and fuel flow front, their spread and merging behavior, are concerned herein. Results sh...

Exceptional strength and ductility in AlCrFe1.5Ni2.6 eutectic medium-entropy alloy by Si induced lamellar to island-like structural transformation

Changing the lamellar morphology of the brittle phase in the eutectic alloy is beneficial to improving its mechanical properties. In this work, the effect of low-cost Si on the microstructure evolution and mechanical properties AlCrFe 1.5 Ni 2.6 eutectic medium entropy alloys (ME...

Analysis and prediction of research vessel attitude based on full-scale operational data

This study uses full-scale operational data from a large research vessel to perform statistical characterization and guide the selection of data-driven prediction models. A simplified Long Short-Term Memory-based (LSTM-based) framework, referred to as LSTM-FC, is developed for co...

Design of High‐Performance OSL Dosimetric Materials: Prediction of Optically Stimulated Luminescence Properties in Doped BeO Based on Density Functional Theory

Beryllium oxide (BeO), as an optically stimulated luminescence (OSL) material, possesses unique application advantages in the field of radiation dosimetry due to its effective atomic number close to that of human tissues. To break through the limitation that the research and deve...

Three-dimensional numerical simulation of successive bubble condensation in mini-channels with VOSET method

In this paper, based on the energy jump model, the VOSET method is applied to study the condensation dynamics and heat transfer characteristics of successive bubbles in a three-dimensional mini-channel. The effects of liquid subcooling, inlet velocity distribution, initial bubble...

Spherical disturbance elements for compound enhancement in bionic fish-scale tubes: Wake control and thermo-hydraulic performance

Enhancing convective heat transfer in circular tubes is crucial for compact heat exchangers, but conventional passive structures often suffer from weak heat transfer in downstream recirculation zones. To address this limitation, a bionic fish-scale composite sphere enhanced heat...

A nonlinear stiffened-panel substructure method for efficient prediction of hull girder ultimate bending strength

The reliable prediction of hull girder ultimate strength has long been a cornerstone of ship structural design, but current numerical approaches either rely on oversimplified empirical formulas that lack generality or demand prohibitively high computational costs that hinder prac...

Sol–Gel Process Optimization of Transparent Silica Aerogels: Regulating Nanostructure to Enhance Optical Transmittance

Silica aerogel, a prototypical transparent nanoporous material with ultralow density and a widely tunable refractive index, is employed as a Cherenkov radiator for precision gamma-ray diagnostics in inertial confinement fusion experiments. However, its optical transmittance is hi...

Influence of Relative Spatial Layout of Fire and Openings on Neutral Plane Characteristics and Distribution Mechanisms of Mass and Heat Release for Spill Plumes in Compartment Fires

This paper presents a numerical investigation into full-scale double-opening compartment fires. It aims to reveal the underlying mechanisms by which the relative spatial layout of the fire source and openings influences neutral plane characteristics, flow field dynamics, and the...

Chamber-to-Field Development and Validation of Integrated Filtration–Adsorption Air Cleaners for Particle and VOC Control in Shipboard Cabins

Shipboard cabins can contain both oil mist-dominated particulate matter and volatile organic compounds (VOCs), creating a need for compact air-cleaning systems capable of simultaneous particle and gas-phase removal. This study developed an integrated filtration–adsorption air cle...

Degeneracy-Aware Intensity-Assisted LiDAR–Inertial Odometry with Adaptive Photometric Weighting

LiDAR–inertial odometry (LIO) is accurate in structurally rich environments but can become weakly observable in tunnels, stairways, and open terrain. This study introduces a degeneracy-aware, intensity-assisted LIO method that uses LiDAR reflectivity as an internal sensing modali...

Multi-Scale CFD Investigation of Viscous Scale Effects on Bulbous Bow Slamming Pressures and Full-Scale Extrapolation

Predicting wave slamming pressures on bulbous bows is essential for ship structural safety. This study employs an overset-grid RANS-VOF framework to investigate viscous scale effects on bulbous bow slamming loads. Multi-scale simulations were conducted across four geometric scale...

An Improved Informed-RRT* Algorithm Based on Risk-Density-Aware Corridor Sampling and Improvement-Bound Rejection for Path Planning

Sampling-based path planning is widely used in autonomous navigation, but Informed-RRT* still relies mainly on geometric ellipsoidal sampling and does not explicitly evaluate local obstacle risk, which can lead to invalid expansion, redundant nodes, and slow convergence. This pap...

OccPepSeg-YOLO for Instance Segmentation of Occluded Peppers in Field Images

Agricultural operations such as pepper harvesting, fruit counting, and field phenotyping rely on accurate visual recognition and instance segmentation algorithms. However, pepper fruits in complex field environments often exhibit slender and curved shapes, partial occlusion, ambi...

VARE: Geometry-Anchored Bearing and Range Stabilization for USV Recovery

Reliable unmanned surface vehicle (USV) recovery requires near-field maritime remote sensing outputs that remain stable during the final approach. Planar fiducial geometry provides metric pose estimates, but its depth channel is sensitive to corner-localization noise, apparent ma...

Complete biosynthesis of the clinical agent escin Ia

Abstract Escin Ia is a barrigenol-type triterpenoid specific to Aesculus seeds and is widely utilized in clinical practice for the treatment of cerebral edema, swelling, and venous insufficiency. Here, we fully elucidated its biosynthetic pathway by identifying ten previously unc...

Effect of Arctic Service Conditions on the Mechanical Properties and Damage Behavior of Glass Fiber and Carbon/Glass Hybrid-Reinforced Vinyl Ester Composites for Marine Applications

Glass fiber-reinforced polymer (GFRP) and carbon/glass hybrid fiber-reinforced polymer (HFRP) laminates with two vinyl ester resin systems were investigated to evaluate their early environmental response, residual mechanical performance, and damage behavior after moisture-assiste...

Numerical investigation of resistance reduction mechanisms and scale effects in tandem ship formation

Ship formation offers a strategic approach for resistance reduction in sustainable maritime transportation, whereas the underlying physical mechanisms and their scale dependencies remain insufficiently understood. In the present research, a URANS-based framework integrated with r...

Structural design and experimental validation of a titanium alloy hemispherical shell for ultra-deep-sea applications

This paper presents a comprehensive investigation into the design, numerical simulation, and experimental validation of an ultra-high-strength titanium alloy hemispherical shell intended for pressure-resistant applications at depth of 11,000 meters. Employing the strength and sta...