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Determining the Crossflow Parameters of Two Tandem Pipelines by Numerical Methods
Journal of Machinery Manufacture and Reliability Pub Date : 2021-08-31 , DOI: 10.3103/s105261882104004x
S. M. Kaplunov 1 , N. G. Val’es 1 , V. Yu. Fursov 1 , N. A. Chentsova 1 , V.V. Perevezentsev 2
Affiliation  

Abstract

An efficient approach to determining dangerous relations between design parameters for a submerged pipeline transport system with the most frequently used tandem position of tubes (one after another downstream) intended to ensure accident-free operation of the structure under consideration is presented. To solve this problem, the effect of the particular position of pipelines on the character of their dynamic response is analyzed. For this purpose, the hydrodynamic mechanisms of pipe vibration excitation are considered first, because they significantly influence the strength of the structure. Based on the analysis of the numerical and experimental results of studying the pipeline behavior in a fluid or gas flow, a technique is developed for determining the inappropriate values of the amplitude of pipe vibrations and providing safe operation of such tubular structures. The proposed model of the numerical experiment is applicable for complete reproduction of all excitation mechanisms known for tube bundles, namely, the periodic vortex separation and the hydroelastic excitation.



中文翻译:

用数值方法确定两条串联管道的横流参数

摘要

提出了一种确定水下管道运输系统设计参数之间危险关系的有效方法,该系统具有最常用的管道串联位置(一个接一个下游),旨在确保所考虑的结构无事故运行。为解决这一问题,分析了管道特定位置对其动态响应特性的影响。为此,首先考虑管道振动激发的流体动力机制,因为它们显着影响结构的强度。基于对流体或气体流动中管道行为研究的数值和实验结果的分析,开发了一种技术来确定管道振动幅度的不适当值并提供此类管状结构的安全操作。所提出的数值实验模型适用于管束已知的所有激发机制的完整再现,即周期性涡流分离和水弹性激发。

更新日期:2021-08-31
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