Marine Structures最新文献_第10页

Progressive collapse response and ultimate strength evaluation of stiffened plates with welding residual stress under combined biaxial cyclic loads and lateral pressure 焊接残余应力加劲板在双轴循环载荷和侧压力联合作用下的渐进坍塌响应和极限强度评估

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-09 DOI: 10.1016/j.marstruc.2024.103703

Dongyang Li , Zhen Chen

{"title":"Progressive collapse response and ultimate strength evaluation of stiffened plates with welding residual stress under combined biaxial cyclic loads and lateral pressure","authors":"Dongyang Li , Zhen Chen","doi":"10.1016/j.marstruc.2024.103703","DOIUrl":"10.1016/j.marstruc.2024.103703","url":null,"abstract":"<div><div>Stiffened plates used in bottom structures of ships are commonly subjected to multiaxial loading in harsh sea state. Thus, understanding their collapse behaviour under combined loads is highly valuable, and numerical simulations can provide accurate insights into this topic. The current research is the first to deal with the ultimate strength characteristics and assessment of initially deflected stiffened plates with welding residual stress (WRS) under combined biaxial cyclic loads and lateral pressure. Finite element analysis is conducted extensively to obtain the numerical results of longitudinal cyclic ultimate strength considering geometric and material nonlinearities with the aid of secondary development of ABAQUS software. It is found that the cyclic ultimate strength is governed by the coupling effects of structural dimensions, longitudinal and transverse residual stresses as well as transverse cyclic compressive/tensile loads and lateral pressure. A series of significant findings observed from this paper are presented in detail aiming to improve the ultimate limit state (ULS) design of ship structures. Based on sufficient sample points, four different machine learning (ML) models are trained maturely to predict the cyclic ultimate strength, including back propagation neural network (BPNN), support vector regression (SVR), random forest (RF) and radial basis function (RBF) network. Performance of these models is compared objectively using statistical metrics.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103703"},"PeriodicalIF":4.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Accuracy verification of the 2D spectral AIS method by the hull monitoring data 通过船体监测数据验证二维光谱 AIS 方法的准确性

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-07 DOI: 10.1016/j.marstruc.2024.103704

Masayoshi Oka, Yusuke Komoriyama, Chong Ma

{"title":"Accuracy verification of the 2D spectral AIS method by the hull monitoring data","authors":"Masayoshi Oka, Yusuke Komoriyama, Chong Ma","doi":"10.1016/j.marstruc.2024.103704","DOIUrl":"10.1016/j.marstruc.2024.103704","url":null,"abstract":"<div><div>Accuracy validation of the 2D spectral AIS method (AIS method using two-dimensional wave spectrum; 2D-AIS method) using hull monitoring data of a large ore carrier is discussed. The AIS method predicts the response of actual ships using AIS-based ship position data, hindcast wave data, and response characteristics data. The conventional AIS method uses representative parameters(<span><math><mrow><mi>H</mi></mrow></math></span>, <span><math><mrow><mi>T</mi></mrow></math></span>, <span><math><mrow><mi>θ</mi></mrow></math></span>) from wave spectrum modeling. The modeling involves many uncertainties. By using the 2D wave spectrum as it is, the effect of uncertainties associated with wave spectrum modeling is investigated. Compared to the analysis of the monitoring data conducted in this study, it was found that the 2D-AIS method improves the accuracy to about 15 %, while the conventional AIS method shows an error of up to about 35 % compared to the actual measurements in the long-term maximum expected values. This enhancement is attributed to the inability of the modeled wave spectrum to accurately represent the two-peak wave spectrum observed in extreme sea states, leading to a deficiency in reproducing wave frequency components corresponding to peak frequencies of the response. The findings underscore the effectiveness of the 2D-AIS method in refining long-term hull stress estimations, thus offering valuable insights for enhancing the safety and performance of hull structures.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103704"},"PeriodicalIF":4.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 deep learning model for predicting mechanical behaviors of dynamic power cable of offshore floating wind turbine 用于预测海上浮式风力涡轮机动态电力电缆机械行为的深度学习模型

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-07 DOI: 10.1016/j.marstruc.2024.103705

Jin Liu, Binbin Li

{"title":"A deep learning model for predicting mechanical behaviors of dynamic power cable of offshore floating wind turbine","authors":"Jin Liu, Binbin Li","doi":"10.1016/j.marstruc.2024.103705","DOIUrl":"10.1016/j.marstruc.2024.103705","url":null,"abstract":"<div><div>Dynamic power cable acts as both electricity current channel and information channel between offshore floating wind turbine and substation. Key role as it plays, the mechanical behaviors of dynamic power cable in operation is complicated, owing to the multiple internal loads involved in the cross section and the drastic stress distribution along the cable. In this paper, a multi-task integrated model based on LSTM is proposed to realize both the tension and the bending moment prediction at several fatigue-prone locations. Regarding the parameter combination in high dimension and time-consuming search for the optimum, halving grid search algorithm is applied to conduct hyper-parameters optimization with higher efficiency over wider range. Additionally, due to the motion effects brought by the buoyancy section, the prediction accuracy of the model at locations other than the hang-off point is lower, which is resolved by introducing an subsea sensor at the hog bend to provide additional 3-DOF motion inputs. The improvement brought by the additional inputs at the other points than the hang-off point can be up to 10%. The reliability of the multi-task integrated model is evaluated in a stochastic irregular wave generated by a different random seed as well as wave parameters scaled at different ratios, and a satisfying consistency is observed. Furthermore, the proposed model is applied in extreme sea state, in which the model exhibits comparable performance with its performance in operational sea state. The desirable performance in both the operational and extreme sea states demonstrates the robustness of the model, and implies its potential in more various sea states.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103705"},"PeriodicalIF":4.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Tendon fatigue analysis of tension leg platform using a new time-domain quasi-dynamic method 使用新型时域准动态方法分析拉伸腿平台的肌腱疲劳问题

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-04 DOI: 10.1016/j.marstruc.2024.103701

Binbin Li , Wei Huang , Xiaobo Chen

{"title":"Tendon fatigue analysis of tension leg platform using a new time-domain quasi-dynamic method","authors":"Binbin Li , Wei Huang , Xiaobo Chen","doi":"10.1016/j.marstruc.2024.103701","DOIUrl":"10.1016/j.marstruc.2024.103701","url":null,"abstract":"<div><div>Due to the non-Gaussian characteristics of the tendon tension response of tension leg platform (TLP), the common statistical model is not adequate to estimate the fatigue damage accurately in the frequency domain, thus the time domain analysis is required. A new quasi-dynamic method is proposed to calculate the tendon tension response considering various factors. An equivalent analytical tendon model is employed and the post-treatment has been carried out for the reconstruction of the high-frequency stress response based on the vertical motion QTFs of each tendon by HydroSTAR. Forty sets of environmental cases are extracted from a scatter diagram. The rainflow counting method is applied to deal with the stress time series and the fatigue damage can be obtained combined with the relevant S-N curve. The number of cycles of tension for each tendon is discussed, considering the contribution of the first-order wave load, the second-order diff-frequency wave load, and the second-order sum-frequency wave load. The comparison of annual fatigue damage based on the quasi-dynamic method and coupled method by Orcaflex is carried out. The study proves that the quasi-dynamic method is an efficient way to estimate the fatigue life of each tendon in the time domain considering numerous cases of discrete sea states.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103701"},"PeriodicalIF":4.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Experimental investigation of nonlinear springing of ultra-large container ship in regular waves 超大型集装箱船在规则波浪中的非线性弹跳实验研究

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-04 DOI: 10.1016/j.marstruc.2024.103697

Hailong Si , Chao Tian , Jun Yang , Yanchao Geng , Nan Zhao , Jiajun Hu , Junhua Zhan

{"title":"Experimental investigation of nonlinear springing of ultra-large container ship in regular waves","authors":"Hailong Si , Chao Tian , Jun Yang , Yanchao Geng , Nan Zhao , Jiajun Hu , Junhua Zhan","doi":"10.1016/j.marstruc.2024.103697","DOIUrl":"10.1016/j.marstruc.2024.103697","url":null,"abstract":"<div><div>The issue of ship structural fatigue strength caused by springing is receiving increasing attention from designers. To investigate nonlinear springing more precisely on ultralarge container ships that have large-opening structural characteristics, a new segmented ship model with a U-shaped backbone was designed and fabricated in this paper. The novel U-shaped backbone can simultaneously simulate the vertical, horizontal, and torsional stiffnesses as well as the shear center of a full-scale container ship. Measurements of the vertical and horizontal bending moments of the ship model were achieved by assessing the corresponding bending strains of the U-shaped backbone. Integration of the shear flow method was developed for direct measurements of torsional moments. This method was validated through the calibration of the U-shaped backbone. On the basis of the new segmented ship model, vertical, horizontal, and torsional nonlinear springing tests were conducted successfully for the 20000 TEU container ship in the seakeeping basin of the CSSRC, and their characteristics and mechanisms were investigated. The test results reveal that nonlinear springing is a special case of high-frequency vibration that is induced by the harmonic excitation force. The resonance frequency component of the vertical bending moment of the midship is almost 2.5–4.5 times the corresponding wave frequency component when the ship experiences double-frequency vertical nonlinear springing at high speed under different wave headings. The severity of torsional nonlinear springing is not as pronounced as that of vertical nonlinear springing.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103697"},"PeriodicalIF":4.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Numerical assessment of marine hose load response during reeling and free-hanging operations under Ocean waves 对海洋波浪下卷绕和自由悬挂作业期间的海洋软管负载响应进行数值评估

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-02 DOI: 10.1016/j.marstruc.2024.103698

Chiemela Victor Amaechi , Ahmed Reda , Mohamed A. Shahin , Charles Agbomerie Odijie , Salmia Binti Beddu , Daud bin Mohamad , Agusril Syamsir , Idris Ahmed Ja'e , Xuanze Ju

{"title":"Numerical assessment of marine hose load response during reeling and free-hanging operations under Ocean waves","authors":"Chiemela Victor Amaechi , Ahmed Reda , Mohamed A. Shahin , Charles Agbomerie Odijie , Salmia Binti Beddu , Daud bin Mohamad , Agusril Syamsir , Idris Ahmed Ja'e , Xuanze Ju","doi":"10.1016/j.marstruc.2024.103698","DOIUrl":"10.1016/j.marstruc.2024.103698","url":null,"abstract":"<div><div>In recent times, the need for sustainable fluid transfer has necessitated the application of bonded hoses and composite risers. It has been considered increasingly within the marine-offshore industry, with advances in loading/offloading operations, and newer offshore platforms. This paper presents a reeling study under different operational and environmental conditions. In this study, finite element modelling (FEM) was used for the design of marine bonded reeling hoses, and two wave spectra were applied to two reeling hose operations. The design assessed the load response of the marine bonded hoses during two different operations, including free-hanging (static) and reeling (dynamic/loading), and assessments were made for reinforced and mainline hoses. The findings aid an understanding on the load response, tension profiles, stress profiles, strain distribution and hose curvature of marine reeling hoses. The study showed different fluid contents affect the performance of the hose differently parametrically. It justifies the use of design specifications for reeling hose under the operation modes for marine application. The recommendations obtained from this study can assist in developing standards and guidance for use by marine hose designers and manufacturers.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103698"},"PeriodicalIF":4.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Multiple-arc cylinder under flow: Vortex-induced vibration and energy harvesting 流动下的多弧圆柱体：涡流诱导振动和能量收集

IF 4 2区工程技术

Marine Structures Pub Date : 2024-10-01 DOI: 10.1016/j.marstruc.2024.103699

Rui Zhang , Lianzhong Huang , Kai Wang , Ranqi Ma , Zhang Ruan , Tian Lan , Boyang Li , Baoshou Zhang

{"title":"Multiple-arc cylinder under flow: Vortex-induced vibration and energy harvesting","authors":"Rui Zhang , Lianzhong Huang , Kai Wang , Ranqi Ma , Zhang Ruan , Tian Lan , Boyang Li , Baoshou Zhang","doi":"10.1016/j.marstruc.2024.103699","DOIUrl":"10.1016/j.marstruc.2024.103699","url":null,"abstract":"<div><div>The shape of a cylindrical cross-section affects the vibrational performance. The vortex-induced vibration (VIV) phenomena of multiple-arc cylinders were numerically investigated to assess their impact on hydrodynamic energy harvesting and potential vibration suppression across a flow velocity range of 0.2 m/s to 1.4 m/s (1.767 × 10<sup>4</sup><<em>R</em>e < 1.237 × 10<sup>5</sup>). The study involves five types of multiple-arc cylinders: 4-arc, 8-arc, 16-arc, 24-arc, and circular cylinders. The accuracy of the numerical method was validated through comparison with experimental data. Specifically, increasing the number of arcs generally enhances overall energy conversion efficiency. Then, the VIV response and energy conversion results of the 24-arc cylinder are similar to those of the circular cylinder with maximum efficiency. Notably, the 4-arc cylinder achieves a global maximum amplitude of 0.074 m (<em>A</em>∗ = 0.83) and a power output of 4.4 W with the new P + T mode, making it the most effective configuration for flow velocities between 0.7 and 0.9 m/s. For vibration suppression of multiple-arc cylinders, the appropriate arc structure effectively reduces amplitudes. The small vortices generated by the arc structures disrupt the separation of normal vortices from the boundary layer, leading to approximately a 50 % reduction in amplitude responses for 8-arc and 16-arc cylinders.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103699"},"PeriodicalIF":4.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Analysis of tubular joints in marine structures: A comprehensive review 海洋结构中的管状连接分析：全面回顾

IF 4 2区工程技术

Marine Structures Pub Date : 2024-09-28 DOI: 10.1016/j.marstruc.2024.103702

Esmaeil Zavvar , Paulo Rosa-Santos , Elyas Ghafoori , Francisco Taveira-Pinto

{"title":"Analysis of tubular joints in marine structures: A comprehensive review","authors":"Esmaeil Zavvar , Paulo Rosa-Santos , Elyas Ghafoori , Francisco Taveira-Pinto","doi":"10.1016/j.marstruc.2024.103702","DOIUrl":"10.1016/j.marstruc.2024.103702","url":null,"abstract":"<div><div>The use of tubular joints (TJs) is evident, although they are commonly utilized in different areas, such as buildings, bridges, offshore structures, and renewable energy structures. Many studies have been conducted on TJs to better understand their behavior from different perspectives, namely using the Stress Concentration Factor (SCF), Hot-Spot Stress (HSS), Fatigue, Stress Intensity Factor (SIF), Degree of Bending (DoB), Local Joint Flexibility (LJF), among others. This paper reviews the experimental and numerical studies published in Web of Science from 1965 until 2024. Several studies have been considered in order to enhance comprehension and summarize existing design guidelines, recommendations, and codes. It was found that single-planar joints had more interest among scholars, especially T, Y, and K-joints, therefore, multi-planar joints need extensive investigations. In addition, the most common studied loadings are axial, in-plane bending, and out-of-plane bending. Hence, to have more accurate results, it is suggested to direct future research to modeling and analysis of the whole platform under environmental conditions.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103702"},"PeriodicalIF":4.0,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 study on the mechanical behavior of umbilical cables under impact loads using experimental and numerical methods 利用实验和数值方法研究冲击载荷下脐带缆的机械行为

IF 4 2区工程技术

Marine Structures Pub Date : 2024-09-27 DOI: 10.1016/j.marstruc.2024.103700

Yandong Mao , Zhixun Yang , Gang Wang , Jinlong Chen , Jun Yan , Zexuan Wang

{"title":"A study on the mechanical behavior of umbilical cables under impact loads using experimental and numerical methods","authors":"Yandong Mao , Zhixun Yang , Gang Wang , Jinlong Chen , Jun Yan , Zexuan Wang","doi":"10.1016/j.marstruc.2024.103700","DOIUrl":"10.1016/j.marstruc.2024.103700","url":null,"abstract":"<div><div>Accidental impacts affect the structural integrity of umbilical cables during their life cycle. This study investigates the impact behavior of a steel tube umbilical cable using both experimental tests and numerical simulations. A series of impact tests are carried out to elucidate the failure modes and deformation responses of non-bonded multi-layer components. A three-dimensional finite element model is established and verified to capture time-history responses. Through the analysis of time-history responses, the impact energy dissipation mechanisms are investigated, and the impact resistance of armor layers is further evaluated. It is found that the armor layers and polymer sheaths dissipate only approximately one-third of the impact energy, demonstrating limited protection capability, while more impact energy is absorbed by internal functional components. The steel tube may have sustained severe damage, even though the armor layer and polymer sheath exhibit only minor damage. This work has provided a reference for the damage assessment and protection design of umbilical cables.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103700"},"PeriodicalIF":4.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Numerical and experimental investigation on active hydraulic tensioner system for a TLP under tether fails condition 系绳失效条件下 TLP 的主动液压拉伸器系统的数值和实验研究

IF 4 2区工程技术

Marine Structures Pub Date : 2024-09-15 DOI: 10.1016/j.marstruc.2024.103693

Jianwei Wang , Xuchu Liu , Jiachen Chai , Yuqing Wang , Xiaofan Jin , Ze He , Wei Cai , Rui Guo

{"title":"Numerical and experimental investigation on active hydraulic tensioner system for a TLP under tether fails condition","authors":"Jianwei Wang , Xuchu Liu , Jiachen Chai , Yuqing Wang , Xiaofan Jin , Ze He , Wei Cai , Rui Guo","doi":"10.1016/j.marstruc.2024.103693","DOIUrl":"10.1016/j.marstruc.2024.103693","url":null,"abstract":"<div><p>In this paper, a new active control system for hydraulic tensioners is proposed. Based on the three-dimensional potential flow theory, the dynamic response of TLP-riser-tensioner under tether fails is studied. It is found that when the tension-leg platform’ tethers fail instantaneously, not only the six-degree-of-freedom motion response of TLP will change, but also the tension 'jump' phenomenon will occur in the tension-riser (TTR). The experiment of the active control scheme based on the platform motion response is designed, and the stability of tension output of hydraulic tensioner under normal working conditions is verified by scale model experiment. Based on the joint simulation of AMESim and Simulink, the designed active hydraulic tensioner and its control strategy are effective for the tension control under the condition of second-order wave force failure. In the case of tethers fail, the fuzzy PID control method of active hydraulic tensioner designed in this paper has stronger robustness than the traditional PID control method.</p></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"99 ","pages":"Article 103693"},"PeriodicalIF":4.0,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0951833924001217/pdfft?md5=da7f6e65a43c3306a2c07e9fcbad831c&pid=1-s2.0-S0951833924001217-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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