Dynamic Stress Analysis of Multi-Segment Curved Pipes Subjected To The Passage Of An ILI Tool

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-02-16 DOI:10.1115/1.4056931

H. Mostaghimi, Sina Rezvani, Ron Chune, Ron Hugo, Simon S. Park

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引用次数: 0

Abstract

Pipelines are susceptible to degradation over time due to different types of defects caused by environmental and loading conditions. In-line inspection (ILI) is a preventive examination method widely used to monitor the degradation of pipelines. The passage of an ILI tool through a segment of a pipeline with loose boundary conditions can generate significant dynamic stress within the pipe. When pipelines pass through excavated sites, bridges, water, and bog, or have free-span segments, they are at a greater risk of dynamic stress. This research aims to study the effects of passing an ILI tool through pipelines consisting of straight and curved segments in series. A 3D finite element (FE) model based on the Timoshenko beam theory is developed to model the vibration response of curved pipes during the passage of an ILI tool. Lab-scale experiments are performed to verify the simulation results of the developed FE model. The developed model is further verified through FE analysis performed in ABAQUS™ Implicit. A comparison of the simulation and experimental results shows that the proposed FE model effectively and accurately predicts the dynamic stress and dynamic displacements of multi-segment pipes during the passage of an ILI tool.

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ILI工具通过多段弯管的动应力分析

由于环境和载荷条件引起的不同类型的缺陷，管道容易随着时间的推移而退化。在线检测是一种广泛应用于管道退化监测的预防性检测方法。ILI工具通过具有松散边界条件的管道段时，会在管道内产生显著的动应力。当管道通过开挖场地、桥梁、水域和沼泽，或有自由跨段时，它们面临更大的动应力风险。本研究旨在研究ILI刀具通过由直线段和曲线段串联而成的管道的效果。建立了基于Timoshenko梁理论的三维有限元模型，用于模拟ILI工具通过弯曲管道时的振动响应。进行了实验室规模的实验来验证所开发的有限元模型的模拟结果。通过在ABAQUS™Implicit中进行有限元分析，进一步验证了所开发的模型。仿真结果与实验结果的对比表明，所建立的有限元模型能够有效、准确地预测ILI工具通过过程中多管段管道的动应力和动位移。

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

Journal of Pressure Vessel Technology-Transactions of the Asme 工程技术-工程：机械

CiteScore

2.10

自引率

10.00%

发文量

审稿时长

4.2 months

期刊介绍： The Journal of Pressure Vessel Technology is the premier publication for the highest-quality research and interpretive reports on the design, analysis, materials, fabrication, construction, inspection, operation, and failure prevention of pressure vessels, piping, pipelines, power and heating boilers, heat exchangers, reaction vessels, pumps, valves, and other pressure and temperature-bearing components, as well as the nondestructive evaluation of critical components in mechanical engineering applications. Not only does the Journal cover all topics dealing with the design and analysis of pressure vessels, piping, and components, but it also contains discussions of their related codes and standards. Applicable pressure technology areas of interest include: Dynamic and seismic analysis; Equipment qualification; Fabrication; Welding processes and integrity; Operation of vessels and piping; Fatigue and fracture prediction; Finite and boundary element methods; Fluid-structure interaction; High pressure engineering; Elevated temperature analysis and design; Inelastic analysis; Life extension; Lifeline earthquake engineering; PVP materials and their property databases; NDE; safety and reliability; Verification and qualification of software.