International Journal of Maritime Engineering Part A1 2020最新文献

Evaluation of Survivability of a Ship After Damage with Application of a Risk Calculation Method 基于风险计算方法的船舶损伤后生存能力评估

International Journal of Maritime Engineering Part A1 2020 Pub Date : 2020-03-01 DOI: 10.3940/rina.ijme.2020.a1.512a

P. Szulczewski

引用次数: 0

Prediction of the Dynamic Response of a Ship in Head Waves Using OpenFOAM Toolbox 利用OpenFOAM工具箱预测船舶在头浪中的动力响应

International Journal of Maritime Engineering Part A1 2020 Pub Date : 2020-03-01 DOI: 10.3940/rina.ijme.2020.a1.565

J. Yao

{"title":"Prediction of the Dynamic Response of a Ship in Head Waves Using OpenFOAM Toolbox","authors":"J. Yao","doi":"10.3940/rina.ijme.2020.a1.565","DOIUrl":"https://doi.org/10.3940/rina.ijme.2020.a1.565","url":null,"abstract":"Ships and marine structures, such as oil tanker, offshore platforms, etc., usually face extreme seaway environment in real situation. If under the action of strong waves large amplitude motions will occur, with the result that they may not work as usual or even lose stability. Thus, it is of great importance to access their dynamic responses under such bad conditions at the initial design stage, so as to ensure normal usage and safety. Herein, the original RANS (Reynolds-Averaged Navier-Stokes) solver based on OpenFOAM Toolbox has been extended to predict dynamic responses of ships and marine structures in waves. A new “inlet-velocity boundary condition” was implemented to generate waves. A damping term for wave absorption was added to the right-hand side of RANS equations in order to avoid wave reflection from the boundary where waves leave the computational domain. The related numerical methods are described in this paper. The purpose of this paper is to present a validation of the approach used. The prediction of the dynamic response of a ship in head waves was the focus. Five cases with different wave lengths and heights were considered. The predicted results, i.e. time histories of total resistance, heave and pitch, were compared with available experimental data and analysed. In addition, due to current experience it is very necessary that effort is devoted to determining appropriate grid and time step, so as to ensure the quality of waves generated.","PeriodicalId":242508,"journal":{"name":"International Journal of Maritime Engineering Part A1 2020","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115755692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Dynamic Stress Intensity Factors for Cracked Stiffened Plates Based on Extended FE Method 基于扩展有限元法的裂纹加筋板动应力强度因子分析

International Journal of Maritime Engineering Part A1 2020 Pub Date : 2020-03-01 DOI: 10.3940/rina.ijme.2020.a1.547

Y. Peng, P. Yang

引用次数: 2

Parametric Formulation of the Floodable Length Curve: Application Case to Offshore Patrol Vessels 可淹水长度曲线的参数化公式:以近海巡逻艇为例

International Journal of Maritime Engineering Part A1 2020 Pub Date : 2020-03-01 DOI: 10.3940/rina.ijme.2020.a1.582

P. Gualeni, G. Balanzoni, V. Bocola, G. A. D. Mare

引用次数: 0