上海交通大学学报

上海交通大学学报 >

2025 , Vol. 59 >Issue 8: 1067 - 1080

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2023.539

船舶海洋与建筑工程

均匀流作用下并联悬垂双取水管涡激振动载荷特性试验研究

  • 赵光义 ,
  • 张萌萌 ,
  • 付世晓 ,
  • 许玉旺 ,
  • 任浩杰 ,
  • 白英利
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  • 上海交通大学 海洋工程国家重点试验室;船舶海洋与建筑工程学院;高新船舶与深海开发装备协同创新中心;极地深海技术研究院, 上海 200240
赵光义(2000—),硕士生,从事涡激振动研究.
张萌萌,长聘教轨助理教授,博士生导师;E-mail:claire_zhang@sjtu.edu.cn.

收稿日期: 2023-10-20

  修回日期: 2023-12-13

  录用日期: 2023-12-26

  网络出版日期: 2024-01-09

基金资助

科技部重点研发计划青年科学家项目(2023YFC2811600);中国科协第七届青年人才托举工程(2020QNRC001);中央高校基本科研业务费专项资金(AF0100142/004)

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Experimental Study on Vortex-Induced Vibration Force Characteristics of Side-by-Side Double Free-Hanging Water Transmission Pipes Under Uniform Flow

  • ZHAO Guangyi ,
  • ZHANG Mengmeng ,
  • FU Shixiao ,
  • XU Yuwang ,
  • REN Haojie ,
  • BAI Yingli
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  • State Key Laboratory of Ocean Engineering; School of Ocean and Civil Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration; Institute of Polar and Ocean Technology, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2023-10-20

  Revised date: 2023-12-13

  Accepted date: 2023-12-26

  Online published: 2024-01-09

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摘要

悬垂取水管作为温差能发电平台等生产设施的核心部件,日益受到关注.悬垂连接双管结构较之单管有着更高的输送效率与更低的制造工艺要求,但是其涡激振动特性尚不明确.为此,开展了一系列悬垂连接双管模型试验,提出了一种针对大位移、小变形问题的涡激载荷识别方法,并对比分析了双管与单管的涡激振动特性.研究结果表明:在相同流速和流向条件下,悬垂双管和悬垂单管的涡激振动位移幅值在低流速时相似,但在高流速下存在差异;悬垂双管更易表现出涡激振动不稳定性,包括行波和多频响应等;双管结构可以采用与单管相同的斯特劳哈尔数进行涡激振动预报;此外,悬垂双管与悬垂单管在横向流动方向上的附加质量系数存在显著差异,其主要起到调节固有湿频率的作用,以使得双管发生涡激振动共振.

关键词： 悬垂管; 涡激振动; 涡激力; 模型试验

本文引用格式

赵光义 , 张萌萌 , 付世晓 , 许玉旺 , 任浩杰 , 白英利 . 均匀流作用下并联悬垂双取水管涡激振动载荷特性试验研究[J]. 上海交通大学学报, 2025 , 59(8) : 1067 -1080 . DOI: 10.16183/j.cnki.jsjtu.2023.539

Abstract

This paper investigates vortex-induced vibration (VIV) characteristics of double free-hanging water transmission pipes, which are crucial for temperature difference energy harvesting platforms. Compared to a single pipe, double pipes could offer higher transport efficiency and cost-effectiveness. In this paper, model experiments were conducted to analyze VIV characteristics of the double free-hanging pipes and a method for identifying vortex-induced loads for large displacements and small deformations was proposed. A comparative analysis of the VIV characteristics of double free-hanging pipe and the single pipe was performed. The findings show that VIV displacement amplitudes of double free-hanging pipe are similar at low flow velocities but differ with those of single pipe at high velocities. The double free-hanging pipe is more prone to instability in VIV, including traveling waves and multi-frequency responses. The VIV frequencies of double free-hanging pipe can be predicted by the same Strouhal number as that of the single pipe. Additionally, a significant difference in the added mass coefficient affects natural wet frequency adjustment for VIV resonance.

Key words： free-hanging pipe; vortex-induced vibration (VIV); vortex-induced force; model test

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