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Cross-domain heterogeneous unmanned system: Development status and key technologies 跨域异构无人系统:发展现状及关键技术
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-20 DOI: 10.1016/j.ijnaoe.2025.100733
Jian Zhou , Shuaichao Guo , Zhan Zhang , Junming Wu , Yue Zhao , Zongyu Zhang , Chenxu Wang
Due to the limitations of single unmanned equipment in meeting increasingly complex task requirements, the collaborative application of cross-domain heterogeneous unmanned platforms has gradually become a research hotspot in the field of unmanned systems. This paper first conducts a bibliometric analysis of the research field of cross-domain heterogeneous unmanned systems, revealing research progress from multiple perspectives. It then introduces representative global projects and applications. Subsequently, the development status of cross-domain heterogeneous collaboration technologies is reviewed from four main aspects: surface-underwater collaboration, aerial-surface collaboration, aerial-ground collaboration, and multi-domain combined collaboration. On this basis, the key technologies involved in cross-domain heterogeneous collaboration are discussed, including cross-domain communication technology, cross-domain heterogeneous task allocation, intelligent environmental perception, manned/unmanned system cooperation, integration with command systems, and security and privacy protection. This study aims to provide a reference for researchers engaged in the field of cross-domain heterogeneous unmanned systems.
由于单一无人设备在满足日益复杂的任务需求方面的局限性,跨域异构无人平台的协同应用逐渐成为无人系统领域的研究热点。本文首先对跨域异构无人系统的研究领域进行文献计量分析,从多个角度揭示研究进展。然后介绍了具有代表性的全球项目和应用。随后,从水面-水下协同、空中-水面协同、空中-地面协同和多领域联合协同四个主要方面综述了跨域异构协同技术的发展现状。在此基础上,讨论了跨域异构协同涉及的关键技术,包括跨域通信技术、跨域异构任务分配、智能环境感知、有人/无人系统协同、与指挥系统集成、安全与隐私保护等。本研究旨在为从事跨域异构无人系统研究的研究人员提供参考。
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引用次数: 0
High-frequency stress prediction and safety assessment method for structures under the effect of underwater explosions 水下爆炸作用下结构高频应力预测与安全评价方法
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-16 DOI: 10.1016/j.ijnaoe.2025.100730
Jiang Xu , Jun Guo , Huaxun Zhao , Wenbo Zhang
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 %.
动应力响应是描述水下爆炸作用下结构冲击损伤程度的重要参数,是结构安全评价的重要依据。然而,结构的动力响应呈现出强烈的非线性过程,对于大型水下工程结构,简单地通过理论分析方法很难准确地获得整个频率范围的解析解。本文从统计的角度系统地描述和推导了以能量形式存在的冲击输入和耗散过程。在线弹性内,由结构振动过程中的能量密度关系推导出结构应变与能量的关系,实现了结构应力的预测。根据结构屈服强度反求出了临界弹性下系统的临界输入,为大型水下结构在冲击作用下的安全性评估提供了技术参考。经水下爆炸实验验证,预测方法与实验的相对误差在17%以内,平均误差为7.52%。
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引用次数: 0
Optimization of cycloidal propeller performance over multiple operating points using a multi-fidelity CFD-Experimental approach 利用多保真度cfd -实验方法优化摆线螺旋桨在多个工作点上的性能
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-13 DOI: 10.1016/j.ijnaoe.2025.100715
Guillaume Fasse , Matthieu Sacher , Frederic Hauville , Gregory Germain
Cycloidal propulsion, also known as the transverse-axis system, holds significant promise for the next generation of ships. Its capability to deliver excellent maneuverability at low speeds, similar to the Voith-Schneider Propeller, and high efficiency at elevated speeds, as seen in systems like ADVPropulse and ABB-Dynafin, makes it a versatile and efficient propulsion solution for a broad range of operational scenarios. Advancements in mechatronics and blade motion control are paving the way for the development of fully electric blade-command cycloidal propellers. This innovation eliminates the constraints imposed by traditional mechanical kinematics, enabling dynamic blade pitch adjustments and significantly broadening the propeller’s operational range and performance. Building on the previously established effective pitch law optimization, the present work employs a multi-fidelity approach to reduce computational costs and better capture the complex physics, which remains challenging to fully optimize using CFD models alone. At the highest level of fidelity, experimental performance evaluations are complemented by CFD simulations, which serve as a lower-fidelity model, balancing computational efficiency and physical accuracy. This multi-fidelity optimization framework is applied across various operating conditions for both cycloidal and trochoidal modes. The resulting series of optimized pitch laws demonstrate the necessity of transitioning from cycloidal mode at low ship speeds to trochoidal mode at high ship speeds to achieve and maintain peak performance.
摆线推进,也被称为横轴系统,对下一代船舶具有重要的前景。它在低速时具有出色的机动性,类似于福伊特-施耐德螺旋桨,在高速时具有高效率,如ADVPropulse和ABB-Dynafin等系统,使其成为一种通用而高效的推进解决方案,适用于广泛的作战场景。机电一体化和叶片运动控制的进步为全电动叶片控制摆线螺旋桨的发展铺平了道路。这一创新消除了传统机械运动学的限制,实现了动态桨距调整,大大拓宽了螺旋桨的工作范围和性能。在先前建立的有效的音高律优化的基础上,本研究采用了多保真度方法来降低计算成本,更好地捕捉复杂的物理现象,而仅使用CFD模型进行完全优化仍然具有挑战性。在最高保真度下,实验性能评估由CFD模拟补充,作为较低保真度的模型,平衡计算效率和物理精度。该多保真度优化框架适用于摆线和摆线模式的各种操作条件。由此产生的一系列优化的俯仰规律表明,在低船速下,从摆线模式过渡到高船速下的摆线模式,以达到并保持最佳性能的必要性。
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引用次数: 0
An experimental and numerical study on the hydrostatic collapse of a scaled HY-80 pressure hull HY-80压壳水静力坍塌试验与数值研究
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-13 DOI: 10.1016/j.ijnaoe.2025.100731
Sang-Hyun Park , Young-Jae Yu , Sang-Rai Cho , Jong Il Lim , Jin Ung Kim , Seung Ha Lee , Kwang Hee Yun , Jung Kyu Song
Accurate strength prediction for submarine pressure hulls fabricated from high-yield-strength (HYS) steels like HY-80 is critical, yet publicly available experimental data remains scarce. This study experimentally investigates the collapse behavior of a scaled, ring-stiffened HY-80 cylinder. Material properties and initial geometric imperfections were characterized using tensile tests and 3D scanning, respectively. During hydrostatic testing, the model experienced an initial collapse at 5.05 MPa via local shell buckling in Bay #3, correlating strongly with the largest measured imperfections. Subsequent repressurization induced an overall buckling mode involving Bays #3, #4, and #5 at 4.98 MPa. A comparison of the 5.05 MPa experimental result with estimations from various design codes revealed significant discrepancies, with prediction-to-experiment ratios ranging from 0.75 to 1.12. This study provides crucial benchmark data underscoring the impact of imperfections, which is vital for validating numerical models and assessing the reliability of current design standards for HYS applications.
对于像HY-80等高屈服强度(HYS)钢制造的潜艇耐压壳体,准确的强度预测是至关重要的,但公开可用的实验数据仍然很少。本研究通过实验研究了HY-80圆柱的尺度、环加筋的坍塌行为。材料性能和初始几何缺陷分别采用拉伸试验和三维扫描表征。在流体静力试验中,模型在5.05 MPa的压力下通过Bay #3的局部壳屈曲发生了初始坍塌,这与测量到的最大缺陷密切相关。随后的再增压导致3号、4号和5号海湾在4.98 MPa下出现整体屈曲模式。将5.05 MPa的试验结果与不同设计规范的估算值进行比较,发现预测与试验的比值在0.75 ~ 1.12之间,差异显著。这项研究提供了重要的基准数据,强调了缺陷的影响,这对于验证数值模型和评估HYS应用的当前设计标准的可靠性至关重要。
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引用次数: 0
A crack localization method for beam-analogy structures based on wavelet transform of mode shape variations 基于模态振型变化小波变换的梁类结构裂纹局部化方法
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-12 DOI: 10.1016/j.ijnaoe.2025.100726
Jun-Hong Park , Yun-Ho Shin , Keunbok Song , Hyemin Seong , Dae-Seung Cho , Kookhyun Kim
This study proposes a crack localization method for beam-analogy structures with and without inherent structural discontinuities such as girders and bulkheads of ships, bridge piers, and building slabs. The proposed method utilizes the discrete wavelet transform (DWT) of crack-induced mode shape variations to identify the structural singularity due to a crack regardless of the singularity of mode shape curvature caused by the inherent structural discontinuity. In addition, multiple mode shapes with different nodal and mode shape curvature distributions as well as a polynomial padding mitigating edge effects are utilized to enhance crack detectability. The Reconstructed Detail Component (RDC) derived from the inverse wavelet transform of detail coefficients is used as a crack indicator to preserve spatial resolution. The validity of the proposed method is examined through numerical analyses on a uniform beam, a ship-like box-girder structure with bulkheads, and a real container ship structure. The results confirm that the proposed method is able to localize a crack and to estimate its severity, even when the crack occurs at an inherent structural discontinuity.
本文提出了一种具有或不具有固有结构不连续面的梁类结构的裂缝定位方法,如船舶的大梁和舱壁、桥墩和楼板。该方法利用裂纹引起的模态振型变化的离散小波变换(DWT)来识别由裂纹引起的结构奇异性,而不考虑固有结构不连续引起的模态振型曲率奇异性。此外,利用具有不同节点和模态曲率分布的多模态振型以及多项式填充减轻边缘效应来提高裂纹的可检测性。利用细节系数的小波反变换得到的重构细节分量(RDC)作为裂缝指示器,以保持裂缝的空间分辨率。通过对均匀梁、带舱壁的类船箱梁结构和实际集装箱船结构的数值分析,验证了所提方法的有效性。结果表明,即使裂缝发生在固有结构不连续处,所提出的方法也能定位裂缝并估计其严重程度。
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引用次数: 0
Anti-swing overhead crane control algorithm based on multi-body dynamics using reinforcement learning 基于多体动力学强化学习的桥式起重机防摆控制算法
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-09 DOI: 10.1016/j.ijnaoe.2025.100719
Jun-Gi Jang, Seung-Ho Ham
Excessive cargo sway during crane operations in the current shipbuilding industry is a major problem that causes safety accidents and work delays. Therefore, the development of stable crane control technology is essential. In this study, a crane control algorithm that simultaneously achieves accurate movement to target positions and sway minimization was developed using reinforcement learning. In dynamics modeling, the Discrete Euler-Lagrange Equation was applied to significantly reduce the computational complexity of existing methods, and the Proximal Policy Optimization (PPO) method was used for control policy learning. A three-dimensional virtual environment was constructed to perform learning under various travel distances and operating conditions, and the performance of the developed algorithm was compared and verified against the traditional trapezoidal velocity profile. Experimental results showed that the proposed method exhibited significant improvements in position control precision and sway suppression performance compared to existing methods. The results of this study are expected to contribute to the implementation of automated crane control systems in actual shipyard environments.
在目前的造船业中,起重机作业中货物晃动过大是造成安全事故和工作延误的主要问题。因此,开发稳定的起重机控制技术是必不可少的。本研究采用强化学习的方法,开发了一种同时实现精确运动到目标位置和摆动最小化的起重机控制算法。在动力学建模中,采用离散欧拉-拉格朗日方程(Discrete Euler-Lagrange Equation)大大降低了现有方法的计算复杂度,并采用近端策略优化(Proximal Policy Optimization, PPO)方法进行控制策略学习。构建了三维虚拟环境,在不同的行驶距离和工况下进行学习,并与传统的梯形速度剖面进行了性能比较和验证。实验结果表明,与现有方法相比,该方法在位置控制精度和抑制摆动性能方面有显著提高。本研究的结果可望有助于在实际船厂环境中实施自动起重机控制系统。
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引用次数: 0
Numerical investigation on the turning motion of a near-surface self-propelled submarine 近水面自航潜艇转向运动的数值研究
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-08 DOI: 10.1016/j.ijnaoe.2025.100718
Haipeng Guo , Yi Liu , Junyu Ge , Lin Du , Guangnian Li
The present work performs a numerical study on the turning motion of a near surface self-propelled submarine. The turbulent flow around the submarine is solved by using the Reynolds-Averaged Navier-Stokes (RANS) method. The interaction between the submarine and the free surface is captured by using the Volume of Fluid (VOF) method. The motion of submarine and rudder is achieved through overset grid technology, while the rotating propeller is modeled by using the body force model. Numerical simulations of the turning circle test are performed for those conditions, and the variation law of the turning motion parameters at different immersion depths is revealed. Based on the obtained flow field details, including free surface waveform, shedding vortices, and velocity distribution, the interaction between the self-propelled submarine and the free surface and its relationship with the submarine turning characteristics are explored.
本文对近水面自航潜艇的转弯运动进行了数值研究。采用reynolds - average Navier-Stokes (RANS)方法求解潜艇周围的湍流。利用流体体积法(VOF)捕捉潜艇与自由表面的相互作用。潜艇和方向舵的运动通过反置网格技术实现,螺旋桨的运动采用体力模型建模。在这些条件下进行了回转试验的数值模拟,揭示了不同浸泡深度下回转运动参数的变化规律。基于所获得的流场细节,包括自由面波形、脱落涡和速度分布,探讨了自主潜艇与自由面相互作用及其与潜艇转向特性的关系。
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引用次数: 0
A comprehensive finite element study of cold expanded insert installation for the corrosion repair of 7075-T6 aluminum alloy holes 7075-T6铝合金孔腐蚀修复用冷扩插件安装的综合有限元研究
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-08 DOI: 10.1016/j.ijnaoe.2025.100716
Pardeep Pankaj , Dave Kim , Daseul Jeong , Chunsik Shim
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.
本研究对7075-T6铝孔的冷扩镶件修复进行了数值研究。结合响应面方法的三维弹塑性有限元模型考察了三个因素:CE%、嵌件厚度(IT)和边缘比(EMR),以及它们对心轴力、残余应力和裂纹萌生周期的影响。孔附近的压环残余应力在CE = 1% ~ 3%时逐渐加深,然后趋于饱和,而自由边缘的拉残余应力则随着CE的增大和EMR的降低而增大。当CE = 1%时,由于自由边缘张力的作用,疲劳裂纹的起裂从孔口处转移到CE≥3%时的自由边缘处。在CE = 3%, IT = 0.254 mm, EMR = 1.7的工艺条件下,获得了最高的起始周期。这些结果提供了使用冷膨胀刀片修复腐蚀铝孔所需的工艺变量范围。
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引用次数: 0
A study on the avoidance timing of autonomous surface ships through machine learning 基于机器学习的自主水面舰艇避碰时机研究
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-06 DOI: 10.1016/j.ijnaoe.2025.100717
Mu-Yeong Seo , Kwang-Jun Paik , Won-Jun Yoo , Sanghyun Kim , Soo-Yeon Kwon
The technologies for autonomous navigation are steadily being developed for the International Maritime Organization level 4 fully unmanned ships. Autonomous surface ships must comply with the Convention on the International Regulations for Preventing Collisions at Sea (COLREGs), which requires them to perceive and judge their situation and generate a collision avoidance path for safe navigation. While COLREGs are designed to prevent collisions between individual vessels, they do not provide clear criteria for when to initiate collision avoidance, which is why maritime collisions continue to occur. This study analyzed the collision avoidance timing of navigators using Automatic Identification System (AIS) data and applied the findings to the collision avoidance system of autonomous ships. A machine learning approach was employed using a decision tree model to classify collision avoidance timing rules, which were then integrated into the collision avoidance system of autonomous surface ships. By analyzing collision avoidance timing through a machine learning model, a system was developed to determine avoidance points in various scenarios. The effectiveness of the proposed system was validated through simulations conducted in diverse and complex environments.
国际海事组织(imo) 4级完全无人驾驶船舶的自主导航技术正在稳步发展。自主水面舰艇必须遵守《国际海上避碰规则公约》(COLREGs),该公约要求它们感知和判断自己的情况,并生成避碰路径,以确保安全航行。虽然COLREGs旨在防止个别船只之间的碰撞,但它们并没有为何时启动避碰提供明确的标准,这就是海上碰撞继续发生的原因。本文利用自动识别系统(AIS)数据对导航员避碰时机进行了分析,并将研究结果应用于自主船舶避碰系统。采用机器学习方法,采用决策树模型对避碰时间规则进行分类,并将其集成到自主水面舰艇避碰系统中。通过机器学习模型对避碰时机进行分析,开发了一套确定不同场景下避碰点的系统。通过在多种复杂环境下的仿真,验证了该系统的有效性。
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引用次数: 0
Multi-USV cooperative path planning via FSM-based distance field and enhanced hippopotamus optimization 基于fsm的距离场和增强河马优化的多usv协同路径规划
IF 3.9 3区 工程技术 Q2 ENGINEERING, MARINE Pub Date : 2025-12-04 DOI: 10.1016/j.ijnaoe.2025.100714
Youjia Han , Huibin Wang
With single Unmanned Surface Vehicle (USV) no longer meeting growing mission demands, cooperative multi-USV systems have become essential, particularly in obstacle-rich waters where task allocation deviates and path planning struggles to balance distance and safety. To address these challenges, an integrated framework combining a constrained-distance-based Hungarian assignment algorithm and an improved Hippopotamus Optimization algorithm (CDH-IHO) is developed to achieve simultaneous target assignment and path planning (STAPP). The CDH module achieves globally optimal assignment by exploiting a constrained distance matrix constructed through the Fast Sweeping Method (FSM), while the IHO module introduces a Cubic chaotic map and a mutation operator to enhance convergence and avoid local optima. Distance, turning angle, safety, and penalty terms are jointly considered for collision-free path generation. Simulations in five scenarios verify global optimality in assignment and superior performance in path length, smoothness, and safety. CDH-IHO provides an efficient and robust solution for STAPP.
随着单个无人水面车辆(USV)不再满足日益增长的任务需求,协作式多USV系统变得至关重要,特别是在任务分配偏离和路径规划难以平衡距离和安全性的障碍物丰富的水域。为了解决这些问题,开发了一种基于约束距离的匈牙利分配算法和改进的河马优化算法(CDH-IHO)的集成框架,以实现目标分配和路径规划(STAPP)的同时进行。CDH模块利用快速扫描法(Fast Sweeping Method, FSM)构造的约束距离矩阵实现全局最优分配,IHO模块引入三次混沌映射和突变算子来增强收敛性,避免局部最优。在生成无碰撞路径时,将距离、转弯角度、安全性和处罚条件综合考虑。在五个场景下的仿真验证了分配的全局最优性以及路径长度、平滑性和安全性方面的优越性能。CDH-IHO为STAPP提供了高效、稳健的解决方案。
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引用次数: 0
期刊
International Journal of Naval Architecture and Ocean Engineering
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