International Journal of Naval Architecture and Ocean Engineering最新文献_第9页

Design optimization of asymmetric wave energy converter using artificial neural network model 基于人工神经网络模型的不对称波能变换器优化设计

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100529

Sunny Kumar Poguluri , Dongeun Kim , Yeonbin Lee , Jeong-Heon Shin , Yoon Hyeok Bae

引用次数: 2

Application of stochastic risk simulation to increase depth of production planning 随机风险模拟在提高生产计划深度中的应用

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100545

Peter Burggräf, Tobias Adlon, Richard Minderjahn, Niklas Schäfer, Torge Fassmer

{"title":"Application of stochastic risk simulation to increase depth of production planning","authors":"Peter Burggräf, Tobias Adlon, Richard Minderjahn, Niklas Schäfer, Torge Fassmer","doi":"10.1016/j.ijnaoe.2023.100545","DOIUrl":"10.1016/j.ijnaoe.2023.100545","url":null,"abstract":"<div><p>This paper presents a procedure model that allows for a systematic analysis of execution risk in ship production by using stochastic risk simulation. Hence, planners can increase the depth of production planning to reduce disruptions and delays even with insufficient information density. The derived four-step model was then applied to the planning process at a German shipyard. Effects and probabilities of risks were estimated using stochastic distribution functions for two exemplary work packages in outfitting. Simulating the risk profiles for all work steps, the critical work steps and accordingly proposed planning tasks to increase the depth of production planning were identified. The application showed altogether that the Monte Carlo method can be used to mitigate the overall execution risk. In addition to increasing objectivity in the production planning process, the approach offers automation possibilities for future use cases and integration into planning software.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"15 ","pages":"Article 100545"},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678223000341/pdfft?md5=82c4fcc44d39e96e114f8ca2c3f8e4da&pid=1-s2.0-S2092678223000341-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48151636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A numerical experiment on a new piston-type wavemaker: Shallow water approximation 一种新型活塞式造波器的数值实验:浅水近似

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100535

Jinsoo Park , Daeseung Cho , Taeksoo Jang

引用次数: 0

A study on PID controlled self-propulsion and turning simulations based on the URANS CFD free running approach 基于URANS CFD自由运行方法的PID控制自推进与转向仿真研究

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100556

ChangSeop Kwon, SeongMo Yeon, Dong-Jin Kim, Kunhang Yun, Yeon-Gyu Kim, SeungHyun Hwang

{"title":"A study on PID controlled self-propulsion and turning simulations based on the URANS CFD free running approach","authors":"ChangSeop Kwon, SeongMo Yeon, Dong-Jin Kim, Kunhang Yun, Yeon-Gyu Kim, SeungHyun Hwang","doi":"10.1016/j.ijnaoe.2023.100556","DOIUrl":"https://doi.org/10.1016/j.ijnaoe.2023.100556","url":null,"abstract":"<div><p>In this study, the proportional, integral, and differential control constants for a self-propulsion point search were investigated using free running Computational Fluid Dynamics (CFD) simulations. The experimental data obtained using a 1/100 scale model of KVLCC2 were used to verify the calculation results. A range of initial propeller rotational speeds from 30% to 140% of the self-propulsion point of the experiment was considered. The controller constants were estimated using the trial-and-error and the Ziegler-Nichols methods, and the two results were similar. As a result, a robust numerical result was obtained within a 0.01% difference of the target speed, and a 0.5% difference of the self-propulsion point of the experiment with P and I constants of 180/m and 30 RPS/m, respectively, for a straight-ahead time of 12.5 L/V. Under the straight-ahead condition, a time step of 0.005 L/V was sufficient. However, in the turning simulation, a time step of 0.0025 L/V or less was required. The key findings obtained from this study are believed to provide a practical guideline for self-propulsion and maneuvering simulation using CFD.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"15 ","pages":"Article 100556"},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678223000456/pdfft?md5=73b9a70f14b8fc14408c188be59c968f&pid=1-s2.0-S2092678223000456-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138448110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance analysis of a fuel cells integrated system utilizing Liquified Natural Gas as fuel for a green shipping target 液化天然气作为绿色运输目标燃料的燃料电池集成系统的性能分析

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100543

Phan Anh Duong , Bo Rim Ryu , So Soon Kyu , Hyeonmin Jeon , Hokeun Kang

{"title":"Performance analysis of a fuel cells integrated system utilizing Liquified Natural Gas as fuel for a green shipping target","authors":"Phan Anh Duong , Bo Rim Ryu , So Soon Kyu , Hyeonmin Jeon , Hokeun Kang","doi":"10.1016/j.ijnaoe.2023.100543","DOIUrl":"10.1016/j.ijnaoe.2023.100543","url":null,"abstract":"<div><p>In this study, a system integrating Solid Oxide Fuel Cells (SOFC) fueled by Liquefied Natural Gas (LNG) for marine vessels is proposed and analyzed. The system comprises Proton Exchange Membrane Fuel Cells (PEMFC), Organic Rankine Cycle (ORC), Gas Turbine (GT), Steam Rankine Cycle (SRC), and Waste Heat Boiler (WHB) combined with the SOFC system to enhance power generation and system performance. The PEMFC is particularly important for maritime applications, compensating for the disadvantage of the SOFC in terms of starting and response time according to the vessel's demand. The CO<sub>2</sub> capture system designated in this proposal not only helps to comply with international regulations and standards on emission control but also reduces the power consumption requirement for traditional CO<sub>2</sub> capture. To simulate and optimize the system's design, the Aspen HYSYS V12.1 process modelling software is employed. The thermodynamic models and equations for this proposed system are based on the first and second laws of thermodynamics. The exergy destruction equations and calculations for the main components are established and estimated to optimize the system's design and operation. The predicted performance of the proposed system is 68.76% for energy efficiency and 33.58% for exergy efficiency. The combined system for cold energy utilization and waste heat recovery generates more than 2100.42 kW equivalent, representing 35.6% of the total system generation. The results of the analysis indicate that when the current density is increased from 930 to 1930 A/m<sup>2</sup>, performance of system experience a reduction of 33.18% and 16.2% for the energy and exergy efficiencies, respectively.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"15 ","pages":"Article 100543"},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48636744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishment of empirical formulae for hydrodynamic derivatives of submarine considering design parameters 考虑设计参数的潜艇水动力导数经验公式的建立

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100537

Thi Loan Mai , Myungjun Jeon , Anh Khoa Vo , Hyeon Kyu Yoon , Seonhong Kim , Jooho Lee

{"title":"Establishment of empirical formulae for hydrodynamic derivatives of submarine considering design parameters","authors":"Thi Loan Mai , Myungjun Jeon , Anh Khoa Vo , Hyeon Kyu Yoon , Seonhong Kim , Jooho Lee","doi":"10.1016/j.ijnaoe.2023.100537","DOIUrl":"10.1016/j.ijnaoe.2023.100537","url":null,"abstract":"<div><p>The hydrodynamic derivatives are necessary for assessing the dynamic characteristics, such as dynamic stability and maneuverability which are crucial in evaluating navigation safety and operational efficiency. Hence, it is required to compute the hydrodynamic derivatives precisely. This study nominates the new empirical formulae for predicting the hydrodynamic derivatives of a submarine. The proposed empirical formulae are derived from hydrodynamic forces and moments which are measured using Computational Fluid Dynamic (CFD) approach. Because the BB2 generic submarine is designed with an appropriate geometry and outstanding features, especially directionally stability, so, it is designated to establish the empirical formulae. The design parameters that have a significant impact on the maneuverability of the BB2 submarine, such as the length-to-diameter ratio, sail position, and sail height, are altered to fit different types of submarines for various purposes. Then, hydrodynamic derivatives of each change factor of the design parameter are taken using the least square method and assessed in relationship with the design parameters through correlation analysis. The high correlation values determine the independent variables which are the design parameters to form the empirical formulae for each hydrodynamic derivative based on multiple regression analysis. The applicability of the established empirical formulae is confirmed by applying them to calculate the hydrodynamic derivatives of BB2 and 2000 tons submarines, and comparing the calculation with the available data. The high precision implies that the established empirical formulae can be used to predict the hydrodynamic derivatives of similar profile submarines to the BB2 and 2000 ton submarines, and they can be extended to submarines in general at the designing phase.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"15 ","pages":"Article 100537"},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44299934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of a hydrofoil wake oscillator model based on a near-vortex strength for predicting vortex-induced vibration on a hydrofoil 基于近涡强度的水翼尾流振荡模型的建立，用于预测水翼涡激振动

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100521

Hyun-Gyu Choi , Suk-Yoon Hong , Jee-Hun Song , Won-Seok Jang , Woen-Sug Choi

{"title":"Development of a hydrofoil wake oscillator model based on a near-vortex strength for predicting vortex-induced vibration on a hydrofoil","authors":"Hyun-Gyu Choi , Suk-Yoon Hong , Jee-Hun Song , Won-Seok Jang , Woen-Sug Choi","doi":"10.1016/j.ijnaoe.2023.100521","DOIUrl":"10.1016/j.ijnaoe.2023.100521","url":null,"abstract":"<div><p>Recently, the evaluation of vortex-induced vibration has emerged as a significantly important issue owing to the development of high-speed and lightweight ships and submarines. To derive an accurate vortex-induced vibration response, it is essential to consider the fluid-structure interaction. Moreover, it is necessary to evaluate the generation of the fluid-structure interaction to effectively prevent catastrophic failure in the structures. In this study, a hydrofoil wake oscillator model was developed based on a near-vortex strength that considers the fluid-structure interaction. The near-vortex strength was calculated from the boundary layer on a trailing edge to overcome the empirical parameter of lift fluctuation in conventional wake oscillator models. To predict the vortex-induced vibration on a hydrofoil, procedures for calculating the near-vortex strength and coupling the structural equations and fluid equation were introduced. The vortex-induced vibration derived using the developed hydrofoil wake oscillator model was verified by comparison it against the experimental results. The results reveal that the derived amplitude and lock-in range of the vortex-induced vibration were consistent with the experimental results. In addition, the extent of occurrence of the fluid-structure interaction and its contribution to vortex-induced vibration were evaluated using a non-dimensional wake parameter.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"15 ","pages":"Article 100521"},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43339802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development and experimental testing of a collaborative design rationale method for early-stage ship layout design 早期船舶布局设计协同设计原理方法的开发与实验测试

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100532

Joan le Poole , Etienne Duchateau , Hans Hopman , Austin A. Kana

引用次数: 0

Ship collision avoidance route planning using CRI-based A∗ algorithm 基于cri的船舶避碰航路规划

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100551

Chanhee Seo , Yoojeong Noh , Misganaw Abebe , Young-Jin Kang , Sunyoung Park , Cheolhyeon Kwon

引用次数: 1

Development of transporter training simulator based on virtual reality and vehicle dynamics model 基于虚拟现实和车辆动力学模型的运输车训练模拟器的开发

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI: 10.1016/j.ijnaoe.2023.100547

Kwang-Phil Park , Seung-Ho Ham , Woo-Yong Lee , Byeong-Woo Yoo

{"title":"Development of transporter training simulator based on virtual reality and vehicle dynamics model","authors":"Kwang-Phil Park , Seung-Ho Ham , Woo-Yong Lee , Byeong-Woo Yoo","doi":"10.1016/j.ijnaoe.2023.100547","DOIUrl":"10.1016/j.ijnaoe.2023.100547","url":null,"abstract":"<div><p>A transporter is a means of transportation that is widely used in heavy industries to move heavy loads called blocks. Because the transporter has a more complex operating system compared to the regular car, it takes a lot of time to become familiar with its operation. However, it is not easy to find a proper place and a transporter for training operators. As a result, the number of accidents caused by the operator's inexperience, such as block drops or collisions, is increasing every year. Therefore, in this study, a transporter training simulator based on virtual reality is developed to allow transporter operators to be trained anytime, anywhere without considering actual transporter and a special training place. This training simulator is composed of five modules. The first module is models of the transporter and the shipyard to be displayed in virtual reality. The second is implementation of the transporter operations such as lifting, lowering, and moving wheels. The third is vehicle dynamics model to implement realistic movement of the transporter. The fourth is the network function to simulate collaboration among workers. The fifth is the scenario module to simulate work situations that are similar to actual ones. By using the developed simulator, a scenario where the signalman and the operator collaborate to transport a block is successfully conducted.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"15 ","pages":"Article 100547"},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47114205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0