Why should the axial pressure load be carefully considered in LNGC hull girder load adjustment?
Abstract This study applied the technique for effectively adjusting the hull girder loads of ships and ship-type offshore plant structures proposed in a previous study [1] to LNGCs with liquid cargo and ballast loads to investigate its validity and usefulness. Three cargo hold models (midship, aftmost and foremost) were created for one LNGC and adjusted […]
An advanced technique to adjust hull girder load: Part 2 = Application to ship’s hull for verification
Abstract In this study (Part 2), the technique proposed in the previous study (Part 1) for effectively adjusting the loads on ships and ship-shaped offshore structures was applied to a real ship to examine its usefulness. Various models and boundary conditions for container ships were created, and the hull girder loads were adjusted to target […]
An advanced technique to adjust hull girder load: Part 1 = generalisation
Abstract In this study (Part 1), a method is proposed to adjust the loads to achieve the target hull girder load with or without local loads on ships and ship-like structures. Each force or pressure load is referred to as a local load and the sum of forces and moments integrated with respect to the […]
Wave-field reconstruction using stereo cameras on a floating platform in a synthetic environment
Abstract This research explores the potential for estimating spatial wave fields using stereo images captured by dual cameras installed on moving vessels. The study was conducted entirely in a simulated environment, where dynamic simulations of an FPSO under diverse sea conditions provided data on spatial wave elevation and vessel motion. To create realistic synthetic images […]
Enhanced energy absorption and reusability of 3D printed continuous carbon fibre reinforced honeycomb beams under three-point bending loads
Abstract The integration of continuous carbon fibre (CCF) into 3D printing technology enables the fabrication of enhanced honeycomb structures. While CCF reinforcement demonstrates considerable potential for improving structural performance, comprehensive research is required to evaluate these fabricated honeycomb structures under bending loads, particularly regarding their shape-memory characteristics and reusability under cyclic loading conditions. This study […]
Multi-body-based 2D hydro-elasticity simulations in time domain for moored floating structure
Abstract This study presents the two-dimensional (2D) hydro-elastic characteristics of a large, moored box barge. The multi-body-based Discrete-Module-Beam (DMB) method was extended to incorporate both longitudinal and lateral hydro-elastic behaviors in time domain. The present model, referred to as the 2D DMB model, includes 3D multi-body hydrodynamics based on the Cummins equation and structural dynamics […]
Structural analysis and optimisation of GFRP sandwich panel with steel stiffeners in upper decks of large passenger ships
ABSTRACT A composite panel with steel stiffeners, instead of the traditional steel panel, can reduce the weight of the superstructure in large passenger ships. In this study, the buckling and ultimate strength of composite sandwich panels with steel stiffeners are analysed by the nonlinear finite element method, compared to the one of prototype steel stiffened […]
Digital Twins In Maritime Safety: A Breakthrough in Hull Structural Integrity Monitoring via Cutting-Edge Conversion Methods and Base Mode Selection Algorithms
Abstract Maritime vessels constantly experience various environmental loads, leading to cumulative fatigue damage on their hull structures, which can ultimately result in structural failure. Despite existing efforts to measure these structural responses, limitations in both sensor availability and measurable hull data present significant challenges. This study presents a ground-breaking approach within the sphere of Digital […]
Novel solid oxide electrolysis cell system thermally integrated with the Haber–Bosch process
Abstract A solid oxide electrolysis cell (SOEC) system thermally integrated with Haber-Bosch (HB) process is a potential solution for improving the hydrogen and ammonia economies in terms of production, storage, and transportation. By utilizing waste heat from the HB process to generate steam for the SOEC system, overall system efficiency for green ammonia production can […]
Techno-economic assessment of liquefied hydrogen tanker ships utilizing various propulsion systems
Abstract Efficient and sustainable hydrogen transportation is essential for realizing the hydrogen economy. This study investigates the economic and environmental impacts of various fuel and propulsion systems: internal combustion engine (ICE) using heavy fuel oil (HFO), liquefied natural gas (LNG), hydrogen (H2), ammonia (NH3), and solid oxide fuel cell (SOFC), across two shipping routes for […]
