Journal of Ocean Engineering and Science最新文献_第6页

Experimental study on the influence of cutting parameters on cutting characteristics of deep-sea seafloor massive sulfide 切削参数对深海海底块状硫化物切削特性影响的实验研究

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2024-11-09 DOI: 10.1016/j.joes.2024.10.001

Bei Zhang , Haining Lu , Zhongqin Lin , Shihang Liu , Liwen Deng

The research of seafloor massive sulfide cutting characteristics is in the initial stage, and experimental methods are rarely used to conduct research. In addition, the mechanism of cutting parameters influencing cutting characteristics is not clear. In order to clarify the influence mechanism, the influences of cutting depth and cutting velocity on cutting characteristics are studied experimentally. It is found that with the increase of cutting depth, the load fluctuation is more severe, the breaking yield is increased, the size of the chip is increased, the powdered percentage is decreased, and the externally expanded breaking zone of rock is wider. However, the cutting depth has little effect on the cutting angle, and the breaking angle is between 48° and 61° With the increase in cutting velocity, the number of load fluctuations per unit of time increases significantly, and the size of the chip decreases. However, the breaking yield, powdered percentage, breaking angle and external expansion area remain basically unchanged. The research is of guiding significance to the optimization of the mining head structure and the selection of cutting parameters.

海底块状硫化物切削特性的研究尚处于起步阶段，很少采用实验方法进行研究。此外，切削参数影响切削特性的机理尚不清楚。为了阐明其影响机理，实验研究了切削深度和切削速度对切削特性的影响。研究发现，随着切削深度的增加，载荷波动更剧烈，破碎屈服增大，切屑尺寸增大，粉末状比例减小，岩石外部扩展破碎区变宽。而切削深度对切削角影响不大，断裂角在48°~ 61°之间，随着切削速度的增加，单位时间内载荷波动次数显著增加，切屑尺寸减小。破碎率、粉末率、破碎角、外膨胀面积基本不变。研究结果对矿头结构的优化和切削参数的选择具有指导意义。

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引用次数: 0

Developing a virtual physical system for vortex-induced vibration studies of a bluff body 研究钝体涡激振动的虚拟物理系统

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2024-10-17 DOI: 10.1016/j.joes.2024.09.003

Haojie Ren , Shixiao Fu , Mengmeng Zhang , Yuwang Xu , Hao Ren

A virtual physical system (VPS) for VIV studies of a bluff body is developed to replace the actual physical systems. It can arbitrarily and accurately control and edit the physical parameters, including mass, damping ratio and spring stiffness, specifically for the mass-spring-damper system. The recursive Duhamel integral method (DIM) with unconditional stability was used for the VPS control system, addressing real-time noise filtering problem and simplifying the system as a single input and single output (SISO) one. Delay compensation and inertial force elimination methods were investigated and proposed to overcome the crucial unwanted damping effects. An experimental facility for VIV model tests by VPS was manufactured, and the bluff body model with a measurement system was specially designed to accurately sense the hydrodynamic force during VPS operation. Systematic verification experiments for parameter editing and control of an actual physical target system were conducted, showing that the VPS can reproduce the equivalent spring-damper-mass system in high fidelity with an accuracy error of less than 5 %. VIV model tests for a bluff body at Reynolds numbers (Re= UD/υ, where U is the flow velocity, D represents the diameter of cylinder model, and υ is the kinematic viscosity coefficient) of 5.7E4 and 2.3E5 were performed using the VPS experimental facility, presenting well-Repeated VIV responses at low Re and unexpected VIV response with a large amplitude of 2.4 D at high Re, which can cause severe fatigue damage for relevant structures. The present VPS will provide promising and powerful experimental tools for VIV studies of a bluff body to reveal the related sensitive parameter effects.

为了取代实际的物理系统，开发了一个用于钝体VIV研究的虚拟物理系统（VPS）。它可以任意精确地控制和编辑质量、阻尼比和弹簧刚度等物理参数，特别是针对质量-弹簧-阻尼器系统。将具有无条件稳定性的递归Duhamel积分法（DIM）用于VPS控制系统，解决了实时噪声滤波问题，并将系统简化为单输入单输出（SISO）系统。研究并提出了延迟补偿和惯性力消除方法来克服关键的有害阻尼效应。制作了一套用于VPS进行涡动模型测试的实验装置，并专门设计了带测量系统的钝体模型，以准确地感知VPS运行时的水动力。对实际物理目标系统进行了参数编辑和控制的系统验证实验，结果表明，VPS可以高保真地再现等效弹簧-阻尼器-质量系统，精度误差小于5%。在VPS实验设备上，对雷诺数（Re= UD/υ，其中U为流速，D为圆柱模型直径，υ为运动黏度系数）为5.7E4和2.3E5的钝体进行了涡激振动模型试验，在低Re下表现出良好的重复涡激振动响应，在高Re下表现出幅度达2.4 D的意外涡激振动响应，对相关结构造成严重的疲劳损伤。该VPS将为钝体的涡激振动研究提供强有力的实验工具，以揭示相关的敏感参数效应。

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引用次数: 0

Subcritical scattering from buried elastic sphere based on subsonic Rayleigh waves 基于亚声速瑞利波的埋地弹性球亚临界散射

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2025-01-14 DOI: 10.1016/j.joes.2024.12.002

Bing Li, Jun Fan, Bin Wang, Kaiqi Zhao, Liwen Tan

This study investigates the scattering characteristics of a buried elastic sphere under plane wave subcritical incidence at low-frequency. As the penetrating wave in sediment at subcritical angles transitions to an evanescent wave, it decays along the depth. The scattering separation method is utilized to explore the form function of a polymethyl methacrylate (PMMA) sphere and the multiple scattering effects between the sphere and the interface under evanescent wave incidence. Additionally, a Ray approach is utilized to predict the far-field scattering from the buried PMMA sphere, which is verified using experimental results. The findings reveal that the evanescent wave field in the sediment exhibits spatially limited beam characteristics and low-pass filtering features. At low frequencies, echoes from the PMMA sphere are primarily contributed by Rayleigh waves. Furthermore, under evanescent wave incidence, the interference between clockwise and counterclockwise Rayleigh waves in the bistatic scattering of the PMMA sphere weakens, and the Specular-Rayleigh wave interference pattern becomes prominent, replacing the typical “X-shaped” distribution of the impulse response with a “backslash-like shaped” distribution in the time-angular domain. The smoothed Wigner-Ville distribution (SWVD) analysis of the echo signals indicates that the group velocity of lower frequency Rayleigh waves is biased higher, leading to a faster arrival of low-frequency components. This research may provide a valuable reference for detecting artificial targets at low-frequency and long distances.

研究了埋地弹性球在低频平面波亚临界入射下的散射特性。当穿透波在亚临界角处转变为倏逝波时，它沿深度衰减。利用散射分离方法研究了聚甲基丙烯酸甲酯（PMMA）球的形态函数以及在倏逝波入射下球与界面之间的多重散射效应。此外，利用射线法对埋藏PMMA球的远场散射进行了预测，并通过实验结果进行了验证。研究结果表明，沉积物中的倏逝波场具有空间有限波束特征和低通滤波特征。在低频时，PMMA球的回波主要由瑞利波贡献。此外，在倏逝波入射下，PMMA球双稳态散射中顺时针和逆时针瑞利波之间的干涉减弱，镜面瑞利波干涉图样变得突出，脉冲响应的典型“x形”分布被时间角域的“反斜线形”分布所取代。回波信号的平滑Wigner-Ville分布（SWVD）分析表明，低频瑞利波的群速度偏高，导致低频分量更快到达。该研究可为低频远距离人工目标的探测提供有价值的参考。

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引用次数: 0

A guidance of solid element application in predicting the ultimate strength of flat plates in compression 实体元在平板极限抗压强度预测中的应用指南

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2024-10-15 DOI: 10.1016/j.joes.2024.09.002

Zhuo Wang , Xiangshao Kong , Weiguo Wu , Shen Li , Do Kyun Kim

With the increasing demand in ocean engineering field for the ultimate limit state (ULS) analysis of thick plates, the solid (3D) element has been more frequently used in the ULS analysis. Compared to 2D element, 3D element can better consider the transverse shearing effect during the analysis which usually occurs on thick plates, due to its reliable reflection of geometrical characteristics and kinematic equations of the structures. Besides, 3D element can also facilitate the introduction of influencing factors into the ULS analysis, such as the erosions, cracks and residual stress. This may improve the simulation precision of ULS analysis of thick plate models. Until now, there is a lack of 3D element modelling technique in the ULS analysis of flat/stiffened plates. The present study aims to provide helpful information on 3D elements in the ULS analysis of flat plates under axial compression load. A total of 350 plate scenarios were adopted in the parametric study to consider the effects of 3D element shape (α_yz). It is found that the element shape significantly influences the ULS analysis of flat plates, where planar-like 3D element is not recommended. An empirical formula for determining the optimal 3D element shape of the finite element (FE) model is proposed based on the parametric results. A guidance for implementing the 3D elements is then documented, which may help engineers further understand the ultimate strength characteristic of very thick flat plates.

随着海洋工程领域对厚板极限状态分析的需求日益增加，固体（三维）单元在厚板极限状态分析中得到了越来越多的应用。与二维单元相比，三维单元能够可靠地反映结构的几何特性和运动方程，能够更好地考虑厚板结构在分析过程中经常出现的横向剪切效应。此外，三维单元还可以方便地将侵蚀、裂纹、残余应力等影响因素引入到ULS分析中。这可以提高厚板模型ULS分析的模拟精度。到目前为止，在平面/加筋板的ULS分析中缺乏三维单元建模技术。本研究旨在提供三维单元在轴向压缩载荷下的平板ULS分析中的有用信息。为了考虑三维单元形状（αyz）的影响，在参数化研究中共采用了350种平板场景。发现单元形状对平板的ULS分析有显著影响，不推荐使用平面三维单元。基于参数化计算结果，提出了确定有限元模型三维最优单元形状的经验公式。然后编制了实施3D元件的指南，这可能有助于工程师进一步了解非常厚的平板的极限强度特性。

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引用次数: 0

The dynamic response characteristics of “ChangJiangKou II” shipwreck salvaging operation: Physical and numerical experiments “长江口二号”沉船打捞作业动态响应特性：物理与数值试验

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2025-01-14 DOI: 10.1016/j.joes.2024.11.003

Dongrong Zhou , Yiting Wang , Shangzhe Xin , Lei Wang , Tong Ge

In this paper, the dynamic response characteristics of an ancient shipwreck “ChangJiangKou II” salvaging system during its salvaging operation, including off-bottom, lifting and off-surface stage, are numerically and experimentally investigated. In order to accurately predict the hydrodynamic performance of “ChangJiangKou II” and the crane barge during the salvaging operation, a specific designed coupled time-domain model combining wreck-soil interaction, lifting module and mooring module is established. A physical model-scale experiment for dynamic lifting of an underwater structure is performed to validate the coupled numerical model. The performance of the dynamic lifting process in different lifting speeds and different environmental conditions is analysed and discussed. The experimental results indicate that there is a tension distribution process during the lifting operation and an external disturbance to the shipwreck can lead to a large increase in lifting cable tensions.

本文对古沉船“长江口II号”打捞系统在离底、吊升和离水面阶段的动态响应特性进行了数值和实验研究。为了准确预测“长江口二号”及起重驳船在打捞过程中的水动力性能，建立了具体设计的结合沉船-土相互作用、起重模块和系泊模块的耦合时域模型。为了验证耦合数值模型的有效性，进行了水下结构动力提升的物理模型尺度实验。对不同提升速度和不同环境条件下动态提升过程的性能进行了分析和讨论。试验结果表明，吊装过程中存在张力分布过程，船体外部扰动会导致吊装索张力大幅增加。

引用次数: 0

ADRC-Based cooperative control for unmanned towing operation by multiple DP tugboats: A comparative study of two cooperative controllers 基于adrc的多艘DP拖船无人拖航协同控制：两种协同控制器的比较研究

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2024-10-18 DOI: 10.1016/j.joes.2024.09.004

Xu Jiang , Lei Wang , Yiting Wang

This paper addresses the challenge of coordinated manipulation of an unactuated floating object by multiple tugboats to execute both positioning and towing operation within complex marine environments. We proposes a multi-layer cooperative control algorithm for the multi-tugboat system, including tugboat control level and cooperative control level. At the individual tugboat control level, the dynamic positioning system (DPS) has been enhanced to match the operational behavior of the tugboat, enabling it to handle cable tension and environmental disturbances during transit. The controller incorporates a simple yet effective linear active disturbance rejection control method (ADRC) to counter external disturbances and ensure accurate trajectory tracking without relying on preset models. Moving to the multi-tugboat collaboration level, two distinct control strategies are proposed for towing operations: formation-based (FB) and force-allocation-based (FAB). The FB strategy involves multiple tugboats forming a coordinated formation, with control focused on the formation center to indirectly manipulate the object. On the other hand, the FAB strategy utilizes model predictive control (MPC) for the object to allocate the necessary towing force for each cable, thereby determining the required actions for each tugboat based on the cable model and the needed towing force. Simulation results demonstrate that both control strategies can effectively maneuver the floating object with high accuracy to perform positioning and towing tasks. Nevertheless, due to the variations in their fundamental mechanisms, there are significant discrepancies in towline tension, tugboat utilization, and energy consumption.

本文解决了多艘拖船在复杂海洋环境中协调操纵非驱动漂浮物以执行定位和拖曳操作的挑战。针对多拖船系统，提出了一种多层协同控制算法，包括拖船控制层和协同控制层。在单个拖船控制层面，动态定位系统（DPS）得到了增强，以匹配拖船的操作行为，使其能够处理运输过程中的电缆张力和环境干扰。该控制器采用一种简单而有效的线性自抗扰控制方法（ADRC）来对抗外部干扰，并确保精确的轨迹跟踪，而不依赖于预设模型。在多拖船协作层面，提出了两种不同的拖曳控制策略：基于编队（FB）和基于力分配（FAB）。FB策略涉及多个拖船组成一个协调的编队，控制集中在编队中心，间接操纵目标。另一方面，FAB策略利用对象的模型预测控制（MPC）来分配每条电缆所需的拖曳力，从而根据电缆模型和所需的拖曳力确定每艘拖船所需的动作。仿真结果表明，这两种控制策略都能有效、高精度地操纵漂浮物完成定位和拖曳任务。然而，由于其基本机制的差异，在拖缆张力、拖船利用率和能源消耗方面存在显著差异。

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引用次数: 0

Experimental study on dynamic response of deep-draft cylindrical offshore platform under wave loads 波浪荷载作用下深吃水圆柱形海洋平台动力响应试验研究

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2025-02-25 DOI: 10.1016/j.joes.2025.02.002

Chengming Qin , Zhe Chen , Yanping He , Zi Wang , Min Zeng , Chenze Cao

The offshore nuclear power platform is a remote island power supply with great prospects for development. This paper addresses the hydrodynamic performance of a new deep-draft cylindrical offshore platform for carrying nuclear reactors. The platform solves the problems of motion resonance and space waste of arranging the nuclear reactor directly on the traditional cylindrical platform and SPAR platform. The novelty of the platform is highlighted through statistical generalization based on dimensionless master scale parameters. A test model and scheme suitable for deep-draft cylindrical offshore platform are established. Through the model test, the platform natural properties and the motion response under different sea conditions are obtained. Spectral analysis is applied to study the platform motion and mooring tension response characteristics. The results show that the natural motion periods of the platform are obviously larger than the main wave period range of the operating sea area, and the resonance risk is low. Under the sea state of 1-in-100-years, the maximum displacement of the platform is 14.088 m, and the maximum dynamic inclination is 10.223°. The motion performance meets the design requirements. It is worth noting that the pitch plays a significant effect in influencing the heave, yaw, and mooring line tension response. This effect is greater as the sea state roughness increases. Improving the pitch of the platform deserves in-depth study. In addition, the results of this study address the gap in experimental data, providing a reference for numerical modeling and further research.

海上核电平台是一种极具发展前景的偏远海岛供电方式。本文研究了一种新型深吃水圆柱形核反应堆海上运载平台的水动力性能。该平台解决了传统圆柱平台和SPAR平台直接布置核反应堆的运动共振和空间浪费问题。通过基于无量纲主尺度参数的统计泛化，突出了平台的新颖性。建立了适用于深吃水圆柱形海洋平台的试验模型和试验方案。通过模型试验，得到了平台在不同海况下的自然特性和运动响应。采用谱分析方法研究了平台运动和系泊张力响应特性。结果表明：平台的自然运动周期明显大于作业海域的主波周期范围，共振风险较低；在百年一遇的海况下，平台最大位移为14.088 m，最大动力倾角为10.223°。运动性能满足设计要求。值得注意的是，纵摇对船舶的升沉、偏航和系缆张力响应有显著影响。这种影响随着海况粗糙度的增加而增大。提高平台的音高值得深入研究。此外，本研究的结果弥补了实验数据的空白，为数值模拟和进一步研究提供了参考。

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引用次数: 0

Variance-tuned ensemble Gaussian process regression for learning and prediction of ship maneuvering motion 船舶操纵运动学习与预测的方差调谐系综高斯过程回归

IF 11.8 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-10-01 Epub Date: 2025-03-28 DOI: 10.1016/j.joes.2025.03.001

Zi-Lu Ouyang , Yi-Fan Xue , Zao-Jian Zou , Gang Chen

With the development of maritime transportation, ship maneuverability is attracting increasing attention, the learning and modeling of ship maneuvering motion is the basis of studying the ship maneuverability. Machine learning methods such as Gaussian process regression (GPR) are widely employed in the learning and prediction of ship dynamics. However, the predictions by the learning model always exhibit distinct deviations when the ship motion to be predicted are quite different from those of the training dataset. To deal with this problem, a robust method based on variance-tuned ensemble GPR learning method is proposed. Multiple base predictors are trained based on GPR each from a different bootstrap dataset. The weight values of each base predictor are adaptive with variance-tuned strategy during the whole prediction process. Taking the ONR Tumblehome ship and KRISO Very Large Crude Oil Carrier 2 tanker as study objects, the results indicate that the proposed method exhibits strong generalization capabilities and achieves high accuracy in predictions.

随着海上运输的发展，船舶操纵性越来越受到人们的重视，船舶操纵性运动的学习和建模是研究船舶操纵性的基础。机器学习方法如高斯过程回归（GPR）被广泛应用于船舶动力学的学习和预测。然而，当待预测的船舶运动与训练数据集的预测差异很大时，学习模型的预测结果往往会出现明显的偏差。为了解决这一问题，提出了一种基于方差调谐集成GPR学习方法的鲁棒方法。基于GPR训练了多个基础预测器，每个预测器来自不同的bootstrap数据集。在整个预测过程中，各基预测器的权重值采用方差调优策略自适应。以ONR Tumblehome船和KRISO超大型原油运输船2号为研究对象，结果表明，该方法具有较强的泛化能力，预测精度较高。

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引用次数: 0

Investigation of the dynamic response of a floating wind-aquaculture platform under the combined actions of wind, waves and current 浮动风力水产养殖平台在风、波浪和水流共同作用下的动态响应研究

IF 13 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-08-01 Epub Date: 2023-11-26 DOI: 10.1016/j.joes.2023.11.003

Qixiang Fan, Yuwang Xu, Qianhui Xie, Mengmeng Zhang, Haojie Ren, Tongxiao Sun

Floating wind-aquaculture platforms are drawing increasing attention from the academic and engineering communities due to their potential to fully exploit and utilize marine space and its resources. However, these platforms integrate both the hydrodynamics and aerodynamics of floating wind turbines and aquaculture cages, making their mechanical properties more complex. This study aims to evaluate the effects of three different hydrodynamic and aerodynamic damping components on and the contribution of the stochastic environmental loads to the dynamic response of a floating wind-aquaculture platform. A coupled hydro-aero-servo method is established. Decay and forced oscillation tests of the platform in still water are firstly numerically performed, followed by simulation of the dynamic behavior under different combinations of environmental loads, including the fluctuating wind load of the blades, stochastic wave excitation forces on the floating body and viscous force of the aquaculture cage system. The aerodynamic damping of the wind turbine and the hydrodynamic damping of the floating body are dominant in low- and wave-frequency range, respectively. Regarding the environmental load components, the second-order wave force and the turbulent wind load are dominant in the surge direction in the low-frequency range. The dynamic response of the platform in the wave-frequency range is mainly induced by the first-order wave force. Fish nets can suppress the low-frequency motion but have almost no influence on the wave-frequency motion.

浮式风力养殖平台由于具有充分开发和利用海洋空间及其资源的潜力，越来越受到学术界和工程界的关注。然而，这些平台整合了浮动风力涡轮机和水产养殖网箱的流体动力学和空气动力学，使其机械性能更加复杂。本研究旨在评估三种不同的水动力和气动阻尼分量对浮式风养殖平台动力响应的影响以及随机环境荷载对平台动力响应的贡献。建立了一种液压-气动-伺服耦合方法。首先对静水中平台进行了衰减和强迫振动试验，然后模拟了不同环境荷载组合下的动力行为，包括叶片的脉动风荷载、浮体的随机波浪激励力和养殖网箱系统的粘性力。风力机的气动阻尼和浮体的水动力阻尼分别在低频和波频范围内占主导地位。环境荷载分量中，低频范围内浪涌方向上二阶波浪力和湍流风荷载占主导地位。平台在波频范围内的动力响应主要由一阶波浪力引起。渔网可以抑制低频运动，但对波频运动几乎没有影响。

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引用次数: 0

Real-time hybrid test method for floating wind turbines: Focusing on the aerodynamic load identification 浮动风力涡轮机的实时混合测试方法：关注空气动力载荷识别

IF 13 1区工程技术 Q1 ENGINEERING, MARINE

Journal of Ocean Engineering and Science

Pub Date : 2025-08-01 Epub Date: 2024-07-03 DOI: 10.1016/j.joes.2024.06.002

Zhihao Jiang , Binrong Wen , Gang Chen , Xinliang Tian , Jun Li , Danxue Ouyang , Zhike Peng , Yehong Dong , Guiyong Zhou

Since the development of floating wind turbine (FWT) shows a rapid trend towards larger capacity and larger rotor size, the traditional full-model basin test method has encountered limits. Especially the balance between the wind generation system (WGS) size and scale ratio of the model FWT system. Under such circumstances, the hybrid model test method provides the possibility to improve the FWT model test. In the hybrid model test method, the original physical model system is divided into physical subsystem and numerical subsystem, and the data acquisition and process module between the 2 subsystems plays an important role. In this paper, a framework of real-time hybrid test (RTHT) system is setup firstly, which combines physical model wind turbine and motion platform. The damping modification to the corresponding numerical code is applied to improve the motion calculation accuracy. Delay implementation is employed to avoid motion divergence. Then a simulation loop is setup in numerical environment to study the identification of aerodynamic load. The influence of identification accuracy to the RTHT result is analyzed. Lastly, the dual-accelerometer method of aerodynamic load identification is employed in the proposed RTHT system. Decay tests and irregular wave only tests are carried out to validate the aerodynamic load identification method. The capability and potential of the RTHT method of floating wind turbine model test is preliminary proved in the work of this paper.

由于浮式风力机的发展呈现出大容量、大转子尺寸的快速发展趋势，传统的全模型盆试验方法已经遇到了局限性。特别是风力发电系统（WGS）的尺寸与模型FWT系统的比例比之间的平衡。在这种情况下，混合模型试验方法为改进FWT模型试验提供了可能。在混合模型试验方法中，将原物理模型系统分为物理子系统和数值子系统，两个子系统之间的数据采集与处理模块起着重要的作用。本文首先建立了风力机物理模型与运动平台相结合的实时混合测试（RTHT）系统框架。对相应的数值代码进行了阻尼修正，提高了运动计算精度。采用延迟实现来避免运动发散。然后在数值环境下建立仿真回路，研究气动载荷的识别问题。分析了识别精度对RTHT结果的影响。最后，在RTHT系统中采用了气动载荷识别的双加速度计方法。通过衰减试验和非规则波试验验证了气动载荷识别方法的有效性。本文的工作初步证明了RTHT方法在浮式风力机模型试验中的能力和潜力。

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引用次数: 0