International Journal of Naval Architecture and Ocean Engineering最新文献_第4页

Interpretable, data-driven models for predicting shaft power, fuel consumption, and speed considering the effects of hull fouling and weather conditions 可解释的数据驱动模型，用于预测轴功率、耗油量和速度，同时考虑船体污损和天气条件的影响

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100592

Hyun Soo Kim , Myung-Il Roh

{"title":"Interpretable, data-driven models for predicting shaft power, fuel consumption, and speed considering the effects of hull fouling and weather conditions","authors":"Hyun Soo Kim , Myung-Il Roh","doi":"10.1016/j.ijnaoe.2024.100592","DOIUrl":"https://doi.org/10.1016/j.ijnaoe.2024.100592","url":null,"abstract":"<div><p>In response to the global call for action to reduce CO<sub>2</sub> emissions, operational measures such as speed, route optimization, and hull cleaning play a significant role in the maritime industry. These measures can be implemented immediately without significant investment in both newbuilding ships and existing ships. To make accurate decisions regarding operational measures, reliable and precise models of environmental conditions and effects of hull fouling are required. In this study, a data-driven approach using linear regression was applied to predict shaft power, fuel consumption, and speed after intensive data preparation and feature engineering. First, a shaft power prediction model was developed by combining three independent submodels: the RPM-power model, hull fouling model, and environmental effect model. Subsequently, fuel consumption and speed prediction models were developed based on the shaft power prediction model. Model validation was performed on a 174K LNG carrier, and the results showed good accuracy even in long-term ship operations of more than two years. The mean absolute percentage errors (MAPEs) of the prediction models were 1.60%, 1.70%, and 2.68% for the shaft power, fuel consumption, and speed, respectively. The validated models were applied to two LNG carriers, and satisfactory results were obtained. This study contributes to greenhouse gas (GHS) reduction by providing interpretable, flexible, and accurate models that can help make correct decisions regarding optimal operational measures.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100592"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678224000116/pdfft?md5=2fab2402b14318a3a541570fc346a4e7&pid=1-s2.0-S2092678224000116-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638378","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 novel method for generating inland waterway vessel routes using AIS data 利用 AIS 数据生成内河船舶航线的新方法

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100621

Huang Tang , Jiang Hu , Xiaochen Li

{"title":"A novel method for generating inland waterway vessel routes using AIS data","authors":"Huang Tang , Jiang Hu , Xiaochen Li","doi":"10.1016/j.ijnaoe.2024.100621","DOIUrl":"10.1016/j.ijnaoe.2024.100621","url":null,"abstract":"<div><div>The study presents a novel approach for generating inland waterway vessel routes based on Automatic Identification System (AIS) data. The trajectory partition algorithm categorizes trajectory data of the Yangtze River to establish round-trip routes. A turning point identification algorithm aids in identifying significant turning points, followed by clustering using the clustering method. Cluster centroids generated from these clusters serve as crucial waypoints for route planning. The Akima interpolation polynomial is judiciously applied to interpolate waypoints, resulting in meticulous route generation. Validation employs a dataset of 5,480,049 dynamic trajectory points from the Yangtze River, demonstrating the method's efficacy. Results indicate mean squared errors of 0.77% and 6.21%, symmetrical mean absolute percentage errors of 5.3% and 7.3%, and correlation coefficients of 99.62% and 97.14% with actual routes, respectively. In contrast to conventional inland waterway route generation methods relying on electronic river charts, the novel approach introduced in this paper for generating inland waterway vessel routes based on AIS data offers superior precision without necessitating route smoothing, thus demonstrating enhanced adaptability.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100621"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656232","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 study on the feasibility of predicting the resistance of a full-scale ship using a virtual fluid 关于利用虚拟流体预测全尺寸船舶阻力可行性的数值研究

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2023.100560

Kwan-Woo Kim , Kwang-Jun Paik , Soon-Hyun Lee , Jun-Hee Lee , Soo-Yeon Kwon , Dohan Oh

{"title":"A numerical study on the feasibility of predicting the resistance of a full-scale ship using a virtual fluid","authors":"Kwan-Woo Kim , Kwang-Jun Paik , Soon-Hyun Lee , Jun-Hee Lee , Soo-Yeon Kwon , Dohan Oh","doi":"10.1016/j.ijnaoe.2023.100560","DOIUrl":"10.1016/j.ijnaoe.2023.100560","url":null,"abstract":"<div><p>In general, the resistance of a real ship is estimated using an extrapolation method after doing experimental tests or numerical simulations with a model scale ship. Since the only Froude similarity is applied in the model test and simulation, the flow characteristics between the model and real ships could be different due to the inconsistency of Reynolds number. However, in the Computational Fluid Dynamics (CFD), the Froude and Reynolds numbers can be satisfied simultaneously because a fluid with virtual properties can be applied. This study investigated the effect of turbulence models and scales for a flat plate. And then the hydrodynamic feasibility of using a virtual fluid was investigated through numerical analysis. The resistance performance and flow structure of the ship were analysed by applying the virtual fluid, and they were confirmed how well these values and flow characteristics simulate the full-scale with a real fluid. This study shows that the results of a full-scale can be obtained at model scale by applying a virtual fluid instead of full-scale numerical simulations that require more computational resources.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100560"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678223000493/pdfft?md5=4fef7acace2a6055d7fbb522bcf026ed&pid=1-s2.0-S2092678223000493-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138628714","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

Data-driven modeling and regression analysis on ship resistance of in-service performance 以数据为驱动的船舶在役性能阻力建模和回归分析

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100623

Daehyuk Kim , Shin Hyung Rhee

{"title":"Data-driven modeling and regression analysis on ship resistance of in-service performance","authors":"Daehyuk Kim , Shin Hyung Rhee","doi":"10.1016/j.ijnaoe.2024.100623","DOIUrl":"10.1016/j.ijnaoe.2024.100623","url":null,"abstract":"<div><div>This study employs operational data to model ship resistance, aiming to bridge the gap between controlled experiments and real-world conditions. It comprehensively analyzes wind, waves, and currents, employing nonlinear regression and z-score filtering. The model is validated using data from three identically designed ships operating on the similar servicevoyages. Key findings reveal significant impacts of wind and waves on the added resistance, variability in resistance across different loading conditions, and discrepancies between in-service performance and model test results, especially at medium to low speeds. Calm water resistance results are reliable, varying within 5%–10% of the average, though in-service performance is generally higher, indicating a need for further research. The added resistance due to wind is significant, with variations within 5%–10%, and the transverse projected area does not always proportionally affect resistance. Head winds have a greater impact on resistance than following winds at the same speed. The analysis of added resistance due to waves shows significant, but sometimes inconsistent, transfer function coefficients, suggesting simpler model structures could be more effective. The added resistance due to current if found to typically fall within a 2–3% range, indicating that significant changes are rare and localized. For large ships, short waves dominate, with resistance increasing proportionally with the non-dimensionalized wave length. While head currents can increase resistance by up to 20% and following currents can reduce it by 5–10%, these larger changes are infrequent. Segmenting data by loading conditions, routes, and speeds improves regression analysis accuracy, though excessive segmentation reduces data diversity and reliability.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100623"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698470","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

An analysis of pipe spool supply chain in shipbuilding using 2-stage queuing model and discrete event simulation 利用两阶段排队模型和离散事件模拟分析造船业的管轴供应链

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100611

In Il Kim , So-Hyun Nam , Jong Hun Woo

{"title":"An analysis of pipe spool supply chain in shipbuilding using 2-stage queuing model and discrete event simulation","authors":"In Il Kim , So-Hyun Nam , Jong Hun Woo","doi":"10.1016/j.ijnaoe.2024.100611","DOIUrl":"10.1016/j.ijnaoe.2024.100611","url":null,"abstract":"<div><p>Pipe spool supply in Korean shipbuilding industry consists of a complex supply chain comprising manufacturing and painting vendors. Major Korean shipyards with the most competitive edge have applied various policies and techniques to control the pipe spool supply chain and prevent production delays related to supply delays in pipe spools. Although research has been done on implementing the policies and techniques, there has been a gap on the theoretical consideration of pipe spool supply chain characteristics using a simulation model. Therefore, this study proposes an analytical method based on queueing model to analyze the characteristics of the pipe spool supply chain and also proposes a simulation model based on discrete event simulation (DES) to verify it. In addition, a numerical experiment using DES for the M/G/1 queuing model is conducted to examine the effect of time variability in the spool supply chain. From the more reliable experimental results, control parameters and management insights to manage the supply chain optimality are proposed and the effectiveness of policies that have been implemented by major shipyards is verified.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100611"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209267822400030X/pdfft?md5=6a57847565aa22d4e1375156987ff30b&pid=1-s2.0-S209267822400030X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142050379","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

Developing a numerical framework to study the cavitation and non-cavitation behaviour of a centrifugal pump inducer 开发数值框架以研究离心泵引风机的气蚀和非气蚀行为

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100606

Seyed Ehsan Hosseini , Amin Deyranlou , Pouyan Talebizadehsardari , Hayder I. Mohammed , Amir Keshmiri

{"title":"Developing a numerical framework to study the cavitation and non-cavitation behaviour of a centrifugal pump inducer","authors":"Seyed Ehsan Hosseini , Amin Deyranlou , Pouyan Talebizadehsardari , Hayder I. Mohammed , Amir Keshmiri","doi":"10.1016/j.ijnaoe.2024.100606","DOIUrl":"10.1016/j.ijnaoe.2024.100606","url":null,"abstract":"<div><p>The present work explores the impact of tip clearance on the mean blade height ratio, inlet tip blade angle, and surface roughness of the inducer. The objective is to find an optimized inducer to limit the secondary flow over the blades, which in turn improves the pump efficiency and reduces the life cycle costs. A numerical framework is developed to investigate efficient operational and geometrical parameters on an inducer's cavitation and non-cavitation presentations. The catalyser functioning is simulated by applying a 3D CFD model, and the results are assessed against empirical data. The results show a reliable agreement with empirical data and suggest that the increment of tip clearance in the mean blade height ratio causes the hydraulic performance and the analytical cavitation number to decline in cavitation and non-cavitation conditions. Moreover, the optimum value of 85<sup>o</sup> is found for the inlet tip blade angle, which improves the non-cavitation performance.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100606"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678224000256/pdfft?md5=d5a684efb7142bdca349f10f4677632f&pid=1-s2.0-S2092678224000256-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141696553","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

Multi-vessel target tracking with camera fusion for unmanned surface vehicles 利用摄像头融合技术为无人水面飞行器进行多船体目标跟踪

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100608

Jeong-Ho Park , Myung-Il Roh , Hye-Won Lee , Yeong-Min Jo , Jisang Ha , Nam-Sun Son

{"title":"Multi-vessel target tracking with camera fusion for unmanned surface vehicles","authors":"Jeong-Ho Park , Myung-Il Roh , Hye-Won Lee , Yeong-Min Jo , Jisang Ha , Nam-Sun Son","doi":"10.1016/j.ijnaoe.2024.100608","DOIUrl":"10.1016/j.ijnaoe.2024.100608","url":null,"abstract":"<div><p>With the decreasing availability of sailors, there has been an increasing focus on the development of autonomous ships. Among the various components of autonomous ships, automatic recognition systems that can replace human vision are a crucial area of research. While ongoing studies utilize traditional perception sensors such as RADAR (RAdio Detection And Ranging) and AIS (Automatic Identification System), they have limitations such as blind spots and a restricted detection range. To address these limitations, this paper proposes a new recognition method that utilizes multiple cameras, including electro-optical and infrared radiation cameras, to supplement traditional perception sensors. This method aims to detect maritime obstacles accurately and estimate their dynamic motion using a tracking process. Initially, real-sea images were collected for maritime obstacle detection, and a deep-learning-based detection model was trained on them. The detection results were then employed in an adaptive tracking filter, which allowed the precise motion estimation of the obstacles. Furthermore, to compensate for the limitations of using individual cameras as sensors, this study introduces the simultaneous fusion of tracked data from multiple cameras. This fusion process enhances tracking results in various ways. In field tests using multiple Unmanned Surface Vehicles (USVs), the proposed method successfully converged tracking results within the range of GPS errors. In addition, the fusion of tracked data from multiple cameras significantly improved the tracking results obtained from a single camera.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100608"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209267822400027X/pdfft?md5=e01b1ba0adc9f90022f64c79bed6b3d6&pid=1-s2.0-S209267822400027X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845239","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

Experimental and numerical study on flow dynamics and universal characteristics of ventilated supercavities behind different cavitators 不同空化器后通风超空腔的流动动力学和通用特性的实验与数值研究

IF 2.2 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100582

So-Won Jeong , Van-Duyen Pham , Byoung-Kwon Ahn , Bu-Geun Paik

{"title":"Experimental and numerical study on flow dynamics and universal characteristics of ventilated supercavities behind different cavitators","authors":"So-Won Jeong , Van-Duyen Pham , Byoung-Kwon Ahn , Bu-Geun Paik","doi":"10.1016/j.ijnaoe.2024.100582","DOIUrl":"10.1016/j.ijnaoe.2024.100582","url":null,"abstract":"<div><p>In this study, physical aspects of a ventilated supercavity behind different cavitator geometries such as the hydrodynamic characteristics, distribution of pressure within the cavity, hysteresis phenomenon, and gas leakage mechanism were qualitatively and quantitatively investigated using experimental and numerical methods. For the simulation and tunnel tests, we employed five cavitators, each with different angles (45°, 60°, 90°, 135°, and a 180° cavitator, commonly referred to as a disk cavitator), all sharing the same diameter. The results revealed that the drag force experienced on the cavitator decreased linearly with an increase in the ventilation rate, and a consistent trend was observed for all test cavitator angles. Through experimental measurements, a universal equation has been derived to predict the drag force exerted on a supercavitating vehicle employing a cavitator. In addition, the pressure distribution inside the supercavity was significantly influenced by the angle of the cavitator. The pressure kept almost unchanged in the first half of supercavity; a slight increase in pressure occurred in the remainder of the supercavity. Twin-vortex gas leakage mode was clearly observed. The distance between the two hollow vortices increased significantly, whereas the incline angle of these vortices and the horizontal line changed insignificantly.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100582"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678224000013/pdfft?md5=6cc0d2fb56c5d00486796bd8d5bb716a&pid=1-s2.0-S2092678224000013-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139470783","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

Sensitivity analysis of damage extent in naval ship compartments due to internal airborne explosions 舰船舱室内部空气传播爆炸造成损坏程度的敏感性分析

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100622

Wonjune Chang, Joonmo Choung

{"title":"Sensitivity analysis of damage extent in naval ship compartments due to internal airborne explosions","authors":"Wonjune Chang, Joonmo Choung","doi":"10.1016/j.ijnaoe.2024.100622","DOIUrl":"10.1016/j.ijnaoe.2024.100622","url":null,"abstract":"<div><div>The objective of this paper is to identify the design variables of the compartment that are most influential in determining the extent of damage due to in-compartment airborne explosions (INCEX). From a comparison of numerical simulation results using the CONventional Weapons Effects Program (CONWEP) with results from airborne blast experiments, CONWEP generated blast pressures with reasonable accuracy. From a comparison of numerical simulation results using the Horsford-Coulomb and local necking hybrid fracture model (HC-LN model) with results from indentation experiments, HC-LN model accurately predicts steel fractures. The engine compartment was selected for the damage variable sensitivity analyses in terms of the probabilities of being hit, flooded, and incapacitated. When three TNT masses, two stand-off distances, and eight engine room dimensions with six levels of each dimension were considered, more than 10 million INCEX cases were required. The Latin hypercube sampling technique was adopted to reduce the number of INCEX simulations to 5000. The element-based and image-based methods were applied to evaluate the damage extents. The element-based method underestimated and overestimated the damage area and damage perimeter more than the image-based method, respectively. The most influential design variables on the damage extent were bulkhead thickness and curtain plate height, respectively.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100622"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656231","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

An investigation of geometric feature recognition in 3D ship data 三维船舶数据几何特征识别研究。

IF 2.3 3区工程技术

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2024-01-01 DOI: 10.1016/j.ijnaoe.2024.100597

Hai Guo, Lin Du, Guangnian Li

{"title":"An investigation of geometric feature recognition in 3D ship data","authors":"Hai Guo, Lin Du, Guangnian Li","doi":"10.1016/j.ijnaoe.2024.100597","DOIUrl":"10.1016/j.ijnaoe.2024.100597","url":null,"abstract":"<div><p>The intelligent recognition of ship geometric features is a prerequisite for enabling computers to automatically generate and deform ship hull surfaces according to requirements, thereby replacing the work of human designers to improve design efficiency. This paper aims to research the recognition of geometric features in three-dimensional ship data using PointNet. To achieve this goal, we first construct two ship point cloud datasets suitable for global feature classification and feature part segmentation of three-dimensional hulls. Subsequently, we conducted recognition capability testing to determine the optimal hyperparameters for identifying ship feature networks. Finally, we employ ship models with non-standard positions to implement data augmentation, enhancing the network's robustness in recognizing the initial positions of ships and achieving rapid cognition of three-dimensional ship geometric features. The findings of this research will provide technical support for ship design based on artificial intelligence technology.</p></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"16 ","pages":"Article 100597"},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092678224000165/pdfft?md5=806fbfef5533a10ee25f695206e42bd8&pid=1-s2.0-S2092678224000165-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141057993","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