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首页> 外文期刊>Arabian Journal for Science and Engineering >Dynamic response of buried fluid‑conveying pipelines subjected to blast loading using shell theory
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Dynamic response of buried fluid‑conveying pipelines subjected to blast loading using shell theory

机译：用壳理论对埋藏流体输送管道进行动态响应

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摘要

In this study, the dynamic response of buried fluid-conveying pipelines subjected to blast loading using the Love shell theoryhas been investigated. The fluid is considered as ideal fluid, and the velocity potential is used to describe the fluid pressureacting on the pipeline. The governing equations of the buried fluid-conveying pipelines are derived through Hamilton’sprinciple. The modal superposition method and the Newmark integral method are used to analyze the dynamic response ofthe pipelines under blast loading. Results show that the displacement amplitudes of the pipelines are larger in the soil witha higher acoustic impedance. The Winkler foundation can enhance the stiffness of the pipelines. Moreover, the increase inthe scaled distance leads to the decrease in the displacement amplitudes of the pipelines. The increase in the fluid velocityresults in the rise of the displacement amplitudes of the pipelines. In addition, the maximum displacement increases firstand then decreases with the increase in length-to-radius ratio of the pipelines. With the increase in thickness-to-radius ratio,the maximum displacement of the pipelines tends to decrease.
机译：在这项研究中，使用爱壳理论对埋地流体输送管道的动态响应已经调查过。流体被认为是理想的流体，并且速度势用于描述流体压力在管道上行事。埋地流体输送管道的控制方程通过汉密尔顿衍生来源的原则。模态叠加方法和纽马克积分方法用于分析动态响应爆炸载荷下的管道。结果表明，土壤中管道的位移幅度较大更高的声阻抗。 Winkler基金会可以增强管道的刚度。而且，增加了缩放距离导致管道的位移幅度的减小。流体速度的增加导致管道位移幅度的升高。此外，最大位移首先增加然后随着管道长度到半径比的增加而降低。随着厚度到半径比的增加，管道的最大位移趋于降低。

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  • 来源
    《Arabian Journal for Science and Engineering》 |2021年第5期|4883-4893|共11页
  • 作者

    Xue Ling; Y. F. Zhang; Yan Qing Wang;

  • 作者单位

    Department of Mechanics College of Sciences NortheasternUniversity Shenyang 110819 China;

    School of Aerospace Engineering Shengyang AerospaceUniversity Shenyang 110136 China;

    Department of Mechanics College of Sciences NortheasternUniversity Shenyang 110819 China Key Laboratory of Ministry of Education On SafeMining of Deep Metal Mines Northeastern University Shenyang 110819 China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Buried pipeline; Flowing fluid; Blast loading; Dynamic response; Love shell theory;

    机译：埋藏管道;流动的流体;爆炸载荷;动态响应;爱壳理论;

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