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Synthetic rope responses in the context of load history: Operational performance

机译：载荷历史中的合成绳索响应：运行性能

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摘要

The utilisation of synthetic mooring ropes for marine renewable energy (MRE) devices is a recent occurrence. Despite current use in the offshore industry, MRE mooring components are typically subjected to highly dynamic loads, necessitating the detailed characterisation of operational and long-term component performance for lifecyde analysis and operations management. To address the uncertainties associated with synthetic mooring components in this application, tension experiments have been conducted on nylon 6 parallel-stranded rope samples at IFREMER, France and the University of Exeter, UK under the consortium MERiFIC (Marine Energy in Far Peripheral and Island Communities). Measurements are reported from harmonic loading tests with different initial bedding-in levels used to investigate the influence of load history on the immediate dynamic properties of the rope. Two irregular load regimes were also applied based on mooring tensions recorded by the South West Mooring Test Facility (SWMTF). Datasets are provided to facilitate the development of rope modelling tools. For the load regimes studied it was found that the operational performance of the rope is strongly influenced by the instantaneous load-strain characteristic. This study provides unique insight into the stiffness and damping properties of synthetic rope in the context of loading regimes relevant to MRE devices.
机译：在海洋可再生能源（MRE）设备中使用合成系泊绳是最近发生的事情。尽管目前在海上工业中使用，但是MRE系泊组件通常承受高动态载荷，因此有必要详细描述运行和长期组件性能的特性，以进行生命周期分析和运行管理。为了解决此应用中与合成系泊组件相关的不确定性，在法国IFREMER和英国埃克塞特大学的MERiFIC财团（远郊和岛屿社区的海洋能源）的联合下，对尼龙6平行绞绳样品进行了拉伸实验。 ）。谐波载荷测试报告了测量结果，这些载荷具有不同的初始嵌入水平，用于调查载荷历史对钢丝绳即时动态性能的影响。根据西南系泊测试设施（SWMTF）记录的系泊张力，还应用了两种不规则的载荷形式。提供了数据集以促进绳索建模工具的开发。对于所研究的载荷状态，发现绳索的操作性能受瞬时载荷应变特性的强烈影响。这项研究提供了在与MRE设备相关的加载方式下合成绳索的刚度和阻尼特性的独特见解。

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  • 来源
    《Ocean Engineering》 |2014年第1期|111-124|共14页
  • 作者

    S.D. Weller; P. Davies; A.W. Vickers; L.Johanning;

  • 作者单位

    Renewable Energy, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Cornwall Campus, Penryn, United Kingdom;

    Marine Structures Laboratory, IFREMER (Centre Bretagne), France;

    Renewable Energy, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Cornwall Campus, Penryn, United Kingdom;

    Renewable Energy, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Cornwall Campus, Penryn, United Kingdom;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Synthetic mooring line; Nylon 6; Parallel-strand rope; Load history; Operational performance;

    机译：合成系泊绳;尼龙6;平行绳加载历史;营运表现;

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