Reliability analysis of carbon fiber rod-reinforced umbilical cable under tension using an improved sampling method

IF 6 1区工程技术 Q2 ENERGY & FUELS

Petroleum Science Pub Date : 2024-08-01 DOI:10.1016/j.petsci.2024.02.016

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引用次数: 0

Abstract

The umbilical cable is a vital component of subsea production systems that provide power, chemical agents, control signals et al., and its requirement for reliability is exceedingly high. However, as the umbilical cable is a composite structure comprising multiple functional units, the reliability analysis of such cables involves numerous parameters that can impact calculation efficiency. In this paper, the reliability analysis of a new kind of umbilical cable with carbon fiber rod under tension is analyzed. The global dynamic analytical model is first established to determine the maximum tension load, then the local analytical model of umbilical cable including each unit are constructed by finite element method (FEM). Based on the mechanical analytical model, the reliability of umbilical cable under tension load is studied using response surface method (RSM) and Monte Carlo method. During the calculation process, a new tangent plane sampling method to calculate the response surface function (RSF) is proposed in this paper, which could make sampling points faster come close to the RSF curve, and it is proved that the calculation efficiency increases about 33% comparing with traditional method.

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利用改进的取样方法分析碳纤维杆增强脐带电缆在拉力作用下的可靠性

脐带缆是海底生产系统的重要组成部分，用于提供电力、化学制剂、控制信号等，其可靠性要求极高。然而，由于脐带缆是一种由多个功能单元组成的复合结构，对其进行可靠性分析时会涉及众多可能影响计算效率的参数。本文分析了一种新型碳纤维杆脐带缆在拉力作用下的可靠性分析。首先建立全局动态分析模型以确定最大拉力载荷，然后通过有限元法（FEM）建立包括各单元在内的脐带缆局部分析模型。在力学分析模型的基础上，采用响应面法（RSM）和蒙特卡罗法研究了脐带缆在张力载荷下的可靠性。在计算过程中，本文提出了一种新的切平面采样方法来计算响应面函数（RSF），该方法能使采样点更快地接近 RSF 曲线，并证明计算效率比传统方法提高了约 33%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Petroleum Science 地学-地球化学与地球物理

CiteScore

7.70

自引率

16.10%

发文量

311

审稿时长

63 days

期刊介绍： Petroleum Science is the only English journal in China on petroleum science and technology that is intended for professionals engaged in petroleum science research and technical applications all over the world, as well as the managerial personnel of oil companies. It covers petroleum geology, petroleum geophysics, petroleum engineering, petrochemistry & chemical engineering, petroleum mechanics, and economic management. It aims to introduce the latest results in oil industry research in China, promote cooperation in petroleum science research between China and the rest of the world, and build a bridge for scientific communication between China and the world.