{"title":"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","authors":"","doi":"10.1016/j.marstruc.2024.103693","DOIUrl":null,"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":null,"pages":null},"PeriodicalIF":4.0000,"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":"0","resultStr":"{\"title\":\"Numerical and experimental investigation on active hydraulic tensioner system for a TLP under tether fails condition\",\"authors\":\"\",\"doi\":\"10.1016/j.marstruc.2024.103693\",\"DOIUrl\":null,\"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\":null,\"pages\":null},\"PeriodicalIF\":4.0000,\"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\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0951833924001217\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0951833924001217","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Numerical and experimental investigation on active hydraulic tensioner system for a TLP under tether fails condition
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.
期刊介绍：
This journal aims to provide a medium for presentation and discussion of the latest developments in research, design, fabrication and in-service experience relating to marine structures, i.e., all structures of steel, concrete, light alloy or composite construction having an interface with the sea, including ships, fixed and mobile offshore platforms, submarine and submersibles, pipelines, subsea systems for shallow and deep ocean operations and coastal structures such as piers.
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