CFD-FEM simulation of water entry of aluminium flat stiffened plate structure considering the effects of hydroelasticity

IF 3.9 4区 工程技术 Q1 ENGINEERING, MARINE
Brodogradnja Pub Date : 2024-01-01 DOI:10.21278/brod75108
Jialong Jiao
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引用次数: 0

Abstract

In this paper, the slamming loads and structural response of an aluminium flat stiffened-plate structure during calm water entry considering the hydroelasticity effects are studied by a partitioned CFD-FEM two-way coupled method. The target structure is simplified as one segment of an idealized ship grillage structure, comprising flat plate and stiffeners. The typical numerical results are analyzed such as vertical displacement, velocity, acceleration, impact loads, and structural stress of the flexible flat bottom grillage structure considering the hydroelasticity effect and air cushion effect in different free fall height conditions. Drop test results of the same structure and other existing numerical simulation data by both coupled and uncoupled solutions in the literature are used for comparison with the present numerical simulation results. This study provides a practical means to simulate the slamming behaviour and structural response of ship structures, which is useful for predicting ship hull stiffened panel loads and related structural design.
考虑水弹性效应的铝制平板加劲板结构进水 CFD-FEM 模拟
本文采用分区 CFD-FEM 双向耦合方法,研究了铝制平板加劲板结构在进入平静水域时的撞击载荷和结构响应,并考虑了水弹性效应。目标结构被简化为理想化船栅结构的一段,由平板和加劲板组成。考虑到不同自由落体高度条件下的水弹性效应和气垫效应,对柔性平底格栅结构的垂直位移、速度、加速度、冲击载荷和结构应力等典型数值结果进行了分析。同一结构的跌落试验结果以及文献中其他现有的耦合和非耦合解数值模拟数据与本数值模拟结果进行了比较。这项研究为模拟船舶结构的撞击行为和结构响应提供了一种实用方法,有助于预测船体加劲板载荷和相关结构设计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Brodogradnja
Brodogradnja ENGINEERING, MARINE-
CiteScore
4.30
自引率
38.90%
发文量
33
审稿时长
>12 weeks
期刊介绍: The journal is devoted to multidisciplinary researches in the fields of theoretical and experimental naval architecture and oceanology as well as to challenging problems in shipbuilding as well shipping, offshore and related shipbuilding industries worldwide. The aim of the journal is to integrate technical interests in shipbuilding, ocean engineering, sea and ocean shipping, inland navigation and intermodal transportation as well as environmental issues, overall safety, objects for wind, marine and hydrokinetic renewable energy production and sustainable transportation development at seas, oceans and inland waterways in relations to shipbuilding and naval architecture. The journal focuses on hydrodynamics, structures, reliability, materials, construction, design, optimization, production engineering, building and organization of building, project management, repair and maintenance planning, information systems in shipyards, quality assurance as well as outfitting, powering, autonomous marine vehicles, power plants and equipment onboard. Brodogradnja publishes original scientific papers, review papers, preliminary communications and important professional papers relevant in engineering and technology.
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