International Journal of Naval Architecture and Ocean Engineering最新文献

{"title":"A review of vessel trajectory prediction research: Methodological evolution, current challenges, and future directions","authors":"Yanxiao Jiang ,&nbsp;Ying Chang ,&nbsp;Benkui Zhang ,&nbsp;Yunping Ge ,&nbsp;Xinyu Zhao","doi":"10.1016/j.ijnaoe.2026.100754","DOIUrl":"10.1016/j.ijnaoe.2026.100754","url":null,"abstract":"<div><div>The maritime industry, responsible for over 90% of global trade, faces growing challenges in safety and efficiency due to increasing traffic volume and complex navigational environments. Vessel Trajectory Prediction (VTP) has thus become a critical technology for enabling intelligent maritime management. This paper provides a comprehensive review of the field, systematically analyzing the evolution of prediction methodologies from traditional approaches to advanced deep learning and hybrid models. While the proliferation of Automatic Identification System (AIS) data has enabled data-driven trajectory analysis, significant challenges persist, including data quality issues, model capability limitations in capturing complex spatio-temporal dependencies, and generalizability across diverse maritime scenarios. This review not only synthesizes existing achievements but also critically examines current limitations in generalizability, interpretability, and real-time capability.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100754"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538538","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}

{"title":"Numerical investigation of side-wall effects on the hydrodynamic characteristics of the KCS","authors":"Hyeri Lee ,&nbsp;Changhun Lee ,&nbsp;Woochan Seok","doi":"10.1016/j.ijnaoe.2026.100750","DOIUrl":"10.1016/j.ijnaoe.2026.100750","url":null,"abstract":"<div><div>This study systematically investigates the side-wall confinement effects on the hydrodynamic performance of the KRISO Container Ship (KCS) using computational fluid dynamics (CFD). The numerical simulations, based on the Reynolds-averaged Navier-Stokes (RANS) equations with the Volume of Fluid (VOF) method and the SST k−ω turbulence model, were conducted for four lateral clearances (<span><math><mrow><mi>y</mi><mo>/</mo><msub><mi>L</mi><mrow><mi>p</mi><mi>p</mi></mrow></msub><mo>=</mo><mn>1.5</mn></mrow></math></span>, 1.0, 0.5, and 0.25). The computational setup was validated against benchmark experimental data, showing excellent agreement in the near-unconfined condition <span><math><mrow><mo>(</mo><mrow><mi>y</mi><mo>/</mo><msub><mi>L</mi><mrow><mi>p</mi><mi>p</mi></mrow></msub><mo>=</mo><mn>1.5</mn></mrow><mo>)</mo></mrow></math></span>. The results demonstrate a significant increase in total resistance as the lateral clearance decreases, with a maximum rise of 17.8% at the most confined condition. This resistance increase is primarily driven by an amplified free-surface wave system at the bow and impaired pressure recovery at the stern. Furthermore, the confinement effect severely distorts the wake field at the propeller plane, leading to a lateral compression and a substantial increase in both axial vorticity and turbulent kinetic energy (TKE). These wake distortions have critical implications for propulsive performance, leading to unsteady blade loading and increased susceptibility to noise and vibration. This study provides a comprehensive quantitative and qualitative analysis of the physical mechanisms behind side-wall effects and proposes practical guidance for determining minimum tank widths.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100750"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184298","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}

{"title":"Enhancement of the computational performance for near- and far-field target strength analysis using OptiX-based shooting and bouncing rays method","authors":"Jangwoo Kim,&nbsp;Seungmin Lee,&nbsp;Dae-Seung Cho,&nbsp;Sung-Ju Park,&nbsp;Kookhyun Kim,&nbsp;Yun-ho Shin","doi":"10.1016/j.ijnaoe.2026.100778","DOIUrl":"10.1016/j.ijnaoe.2026.100778","url":null,"abstract":"<div><div>Target strength (TS) is one of the critical design factors for evaluating the susceptibility of naval ship. Extensive researches have been accomplished to analyze and estimate TS, and software developed based on these researches provides highly accurate solutions for arbitrary shapes. Recently, as submarines become larger and signature reduction technologies advance rapidly in various ways, the computational burden of TS analysis has increased. With the rapid progress of graphic processing unit (GPU) technology optimized for high speed computation, there has been growing the interest in improving the computational efficiency of TS analysis. However, most studies aimed at improving the computational performance of TS analysis assume far-field conditions in which the distance between the sonar and the target is sufficiently far, leading to limitations when applied to near-field acoustic problems where far-field conditions are not satisfied. In this study, a GPU-based TS analysis methodology applicable to both far- and near-field conditions within the cases considered in this study is proposed using the shooting and bouncing rays (SBR) method. The entire process of TS analysis is parallelized on the GPU by utilizing NVIDIA OptiX, a high-performance ray-tracing library. A series of TS analyses are performed using simple-shaped geometries, including a plate, sphere, and dihedral, as well as the benchmark target strength simulation (BeTSSi) model to validate its applicability and effectiveness. In addition, the comparison with conventional CPU-based TS analysis confirms that the proposed GPU-based approach provides considerable improvements in computational efficiency while maintaining reliable accuracy.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100778"},"PeriodicalIF":4.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148539774","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}

{"title":"Scheduling the block painting process in shipbuilding with group completion constraints","authors":"Yeong-Sik Shin,&nbsp;Dong-Nyeong Lee,&nbsp;Yoon-Jea Jeong,&nbsp;Jun-Hee Han","doi":"10.1016/j.ijnaoe.2026.100777","DOIUrl":"10.1016/j.ijnaoe.2026.100777","url":null,"abstract":"<div><div>This study addresses a block-scheduling problem in shipyard painting processes by incorporating detour-path constraints and group completion-time requirements. A truncated branch-and-bound (B&amp;B) algorithm guided by simulated annealing (SA) is proposed. In the methodology, SA is first used to rapidly identify a high-quality initial solution, which is then refined through the B&amp;B procedure. The performance of the proposed algorithm is evaluated by comparing its solution quality and computation time with those obtained from a MILP model. Furthermore, a case study based on a Korean shipyard is conducted to validate the robustness of the algorithm. By incorporating practical operational factors observed in real shipyards, this study provides a foundation for developing automated scheduling systems for shipyard painting operations.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100777"},"PeriodicalIF":4.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148539775","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}

{"title":"A comprehensive finite element study of cold expanded insert installation for the corrosion repair of 7075-T6 aluminum alloy holes","authors":"Pardeep Pankaj ,&nbsp;Dave Kim ,&nbsp;Daseul Jeong ,&nbsp;Chunsik Shim","doi":"10.1016/j.ijnaoe.2025.100716","DOIUrl":"10.1016/j.ijnaoe.2025.100716","url":null,"abstract":"<div><div>This study numerically investigates a cold expansion (CE) based insert installation for repairing 7075-T6 aluminum holes. A 3D elasto-plastic finite element model combined with response surface methodology examines three factors: the CE%, insert thickness (IT), and edge margin ratio (EMR), and their effects on mandrel force, residual stresses, and crack initiation cycles. Compressive hoop residual stress near the bore deepens from CE = 1 %–3 % and then saturates, while tensile residual stress at the free edge increases with higher CE and lower EMR. Fatigue crack initiation shifts from the hole entry at CE = 1 % to the free edge at CE ≥ 3 % due to the free edge tension. The highest initiation cycles are achieved with the process condition at CE = 3 %, IT = 0.254 mm, and EMR = 1.7. These results provide the range of process variables required to repair corroded aluminum holes using cold-expanded inserts.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100716"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145838033","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}

{"title":"Numerical study on dynamic buckling of internally stiffened cylindrical shells under deep-water explosions","authors":"Xiaobin Li,&nbsp;Yang Li,&nbsp;Wei Chen,&nbsp;Pengcheng Hu,&nbsp;Xingxing Wu,&nbsp;Yuelin Zhang,&nbsp;Bin Liu","doi":"10.1016/j.ijnaoe.2026.100787","DOIUrl":"10.1016/j.ijnaoe.2026.100787","url":null,"abstract":"<div><div>As the core load-bearing component of underwater hull structures, studying the buckling failure characteristics and their transformation laws of stiffened cylindrical shells under deep-water explosions is of great significance. In this paper, static and acoustic-structural coupling analysis methods were employed to conduct a numerical study on the dynamic buckling of underwater internally stiffened cylindrical shells subjected to the coupled action of deep-water explosion loads. The dynamic buckling modes of the internally stiffened cylindrical shell during the shock wave and two bubble pulsation stages were analyzed, and the buckling components were quantitatively assessed based on critical buckling displacement and the internal energy of the plate, shell, and ribs. Finally, the buckling evolution process of the internally stiffened cylindrical shell for each mode was examined. The research demonstrated that at the same water depth, as the explosion distance decreased, the primary damage area of the structure shifted from both ends to the middle. When the hydrostatic pressure was excessively high, damage occurred solely at both ends, and circumferential instability was likely to ensue. The buckling instability evolution laws of the internally stiffened cylindrical shell under shock wave loads exhibited similarities. During the first-stage bubble pulsation load, local buckling and aggravated deformation occurred in different parts for each mode. The second-stage bubble pulsation load further exacerbated the instability. Ribs tended to buckle in shallow water, whereas the plate-shell was more vulnerable in deep water.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100787"},"PeriodicalIF":4.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148633977","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}

{"title":"Theoretical study on coupled vibro-acoustic characteristics of combined shells in the polynya region","authors":"Quan-Zhou Jiang,&nbsp;Xian-Zhong Wang,&nbsp;Zao-Peng Dong,&nbsp;Min Yu,&nbsp;Pei-Cheng Zhang,&nbsp;Hui-Xuan Hu,&nbsp;Qiong-Fang Qi,&nbsp;Hai-Hua Deng","doi":"10.1016/j.ijnaoe.2026.100788","DOIUrl":"10.1016/j.ijnaoe.2026.100788","url":null,"abstract":"<div><div>This study investigates the vibration and radiated noise of submerged structures in polynya regions, where ice patterns altered by global warming affect hydroacoustic interactions. A theoretical framework integrating a multiple condensed transfer function (MCTF) for vibration analysis of conical-cylindrical-spherical shells with internal substructures, and a modified boundary element method (MBEM) for acoustic modeling with discontinuous ice-water boundaries, is proposed. Forced vibration tests and underwater acoustic measurements validate the methods. Results show that polynya geometry distorts near-field transmission loss and directivity, with larger polynyas amplifying sound pressure via phase-reversed reflections. Clustered polynyas cause interference-induced heterogeneity. The study highlights limitations of homogeneous ice-cover assumptions and underscores the need for polynya-specific acoustic models.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100788"},"PeriodicalIF":4.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634216","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}

{"title":"Numerical investigation of the gap flow between a quay wall and multi-floaters","authors":"Kyeonguk Heo,&nbsp;Dong-Min Park,&nbsp;Dongho Jung","doi":"10.1016/j.ijnaoe.2026.100792","DOIUrl":"10.1016/j.ijnaoe.2026.100792","url":null,"abstract":"<div><div>Bunkering simultaneous operations (SIMOPS) enhance operational efficiency by enabling bunkering and unloading work to proceed concurrently. However, the reduced clearance between the vessel and the quay, as well as between adjacent vessels, increases the likelihood of gap flow and gap resonance. Such hydrodynamic interactions may lead to pronounced amplification of wave elevations at specific locations, thereby imposing elevated loads on the mooring system. In particular, during bunkering simultaneous operations, two gaps one between the vessel and the quay, and another between the two vessels are formed, resulting in more complex flow characteristics and an increased influence of nonlinear effects. To quantitatively elucidate the wave amplification phenomena induced by gap flow under such conditions, this study establishes a two-dimensional CFD-based numerical wave tank and evaluates the wave elevation RAOs across a range of hull geometries, drafts, and spatial configurations. First, under a conventional unloading work condition involving a single floating body, the gap resonance characteristics between the floating body and the quay wall were examined for a range of hull geometries including rectangular and bilge-rounded cross sections and draft conditions. The shift in resonance frequency and the variation in response amplitude associated with changes in the midship sectional area coefficient (C_M) were compared, thereby elucidating the influence of hull form and draft on the resonance behavior. Subsequently, a bunkering simultaneous operation scenario involving two vessels was considered, and the wave elevation amplification occurring within both the vessel-quay wall gap and the vessel-vessel gap was investigated concurrently. By systematically varying the draft of the outer vessel and analyzing the interaction of wave responses within the two gaps, it was found that the resonance frequency shifts and response amplitude variations become considerably more complex in the combined gap environment.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100792"},"PeriodicalIF":4.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148776926","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}

{"title":"Hull form reconstruction from insufficient data conforming to hydrostatic constraints","authors":"Dayeon Jeong ,&nbsp;Min-Jae Oh ,&nbsp;Jinyoung Park","doi":"10.1016/j.ijnaoe.2025.100732","DOIUrl":"10.1016/j.ijnaoe.2025.100732","url":null,"abstract":"<div><div>Classification societies perform stability analysis based on offsets submitted by shipyards and verify the results. However, in many practical situations, the hull form data required for hydrostatic evaluation is insufficient. This commonly occurs during the stability reassessment of retrofitted or damaged ships, or when original design data are limited due to confidentiality or unavailable from foreign shipyards. As a result, classification societies are often required to reconstruct the hull form using only partial information. To address this issue this study proposes a reverse-engineering method that regenerates hull forms by introducing a novel interpolation approach with area constraints so that hydrostatic requirements are inherently satisfied. Specifically, waterlines are generated at each draft level with their area constrained to match the <span><math><mrow><msub><mi>C</mi><mrow><mi>W</mi><mi>P</mi></mrow></msub></mrow></math></span> and this guarantees the correct displacement. By maintaining waterline consistency across drafts additional hydrostatic constraints such as the <span><math><mrow><msub><mi>C</mi><mi>P</mi></msub></mrow></math></span>, <span><math><mrow><mi>L</mi><mi>C</mi><mi>B</mi></mrow></math></span>, <span><math><mrow><mi>V</mi><mi>C</mi><mi>B</mi></mrow></math></span> are simultaneously satisfied. This mathematically grounded perspective that treats the <span><math><mrow><msub><mi>C</mi><mrow><mi>W</mi><mi>P</mi></mrow></msub></mrow></math></span>-based area as a governing constraint provides a new way to couple hydrostatic data with geometric reconstruction and move beyond manual adjustments. The proposed method was validated on three ship types, and the results demonstrated its effectiveness in producing reliable hull forms for performance analysis while significantly reducing both time and dependency on expert judgment.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100732"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921873","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}

{"title":"High-frequency stress prediction and safety assessment method for structures under the effect of underwater explosions","authors":"Jiang Xu ,&nbsp;Jun Guo ,&nbsp;Huaxun Zhao ,&nbsp;Wenbo Zhang","doi":"10.1016/j.ijnaoe.2025.100730","DOIUrl":"10.1016/j.ijnaoe.2025.100730","url":null,"abstract":"<div><div>Dynamic stress response is an important parameter to describe the degree of impact damage of a structure under underwater explosion and able to act as a significant reference for structural safety assessment. However, the dynamic response of a structure presents a strongly nonlinear process, and for large underwater engineering structures, it is difficult to accurately obtain analytic solutions in the whole frequency range simply through theoretical analysis methods. From a statistical perspective, this paper systematically describes and derives the impact input and dissipation process in the form of energy. Within the linear elasticity, the connection between structural strain and energy is derived from the energy density relationship during the process of structural vibration, achieving the prediction of structural stress. The critical input of the system under the critical elasticity is inversely derived based on the structure’s yield strength, which provides a technical reference for the safety assessment of large underwater structures under impact. After verifying by underwater explosion experiments, the relative error obtained through the prediction method and experiments is within 17 %, with an average error of 7.52 %.</div></div>","PeriodicalId":14160,"journal":{"name":"International Journal of Naval Architecture and Ocean Engineering","volume":"18 ","pages":"Article 100730"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145837963","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}