Shell-Side Flow-Induced Vibration Responses of Elastic Tube Bundle Based on Different Tube Combinations

doi:10.7652/xjtuxb201803010

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Shell-Side Flow-Induced Vibration Responses of Elastic Tube Bundle Based on Different Tube Combinations

更新时间：2025-07-09

- Shell-Side Flow-Induced Vibration Responses of Elastic Tube Bundle Based on Different Tube Combinations
- Vol. 52, Issue 3, Pages: 69-75(2018)
- 作者机构：
- 作者简介：
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- DOI：10.7652/xjtuxb201803010
  CLC： TH123;TK172
- Online First：10 March 2018，
  
  Published：2018
- 稿件说明：
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Shell-Side Flow-Induced Vibration Responses of Elastic Tube Bundle Based on Different Tube Combinations[J]. 2018, 52(3): 69-75.
DOI：

Shell-Side Flow-Induced Vibration Responses of Elastic Tube Bundle Based on Different Tube Combinations[J]. 2018, 52(3): 69-75. DOI： 10.7652/xjtuxb201803010.

摘要

为了研究换热器内弹性管束在壳程流体诱导下的振动特性

利用流固耦合的顺序求解法

对换热器内不同管排间距和不同管排数条件下多排弹性管束在壳程流体诱导下的振动响应进行了数值分析; 提出了分割式网格划分策略

可大幅度提高网格划分的精度、效率和灵活性; 提出了粗算加精算的分步计算策略

可大幅度减少计算时间

提高计算效率。研究表明:在壳程流体诱导下

换热器内各排弹性管束的振动主要表现为面外振动

且振动的均匀性较差; 大不锈钢连接体上监测点的振幅受管排间距的影响较大

小不锈钢连接体上监测点的频率受管排间距的影响也较大; 当管排间距较小时

各排弹性管束间的相互影响较强; 当管排数增加时

各排管束的振动均匀性降低。

Abstract

To study the flow-induced vibration characteristics of elastic tube bundles in heat exchanger

the shell-side flow-induced vibration responses of the elastic tube bundles are investigated based on the sequential solution method of bi-directional fluid-structure coupling with different tube bundle numbers and different tube bundle spacing. The split grid division strategy dramatically improves the accuracy

efficiency and flexibility of the grids. The step-by-step method of rough and accurate calculations can dramatically reduce the computing time and improve the computational efficiency. Numerical results show that vibrations of the elastic tube bundles induced by the shell-side fluid are mainly manifested as out-of-plane vibration

and the vibration uniformity is poor. The vibration amplitudes of the monitor points on the bigger stainless steel blocks are greatly influenced by the tube bundle spacing. In addition

the vibration frequencies of the monitor points on the smaller stainless steel blocks are greatly influenced by the tube bundle spacing

too. When the spacing between the elastic tube bundles is small

the interactions of the elastic tube bundles are strong. Furthermore

the increase of the number of the elastic tube bundle causes a decrease in the vibration uniformity of the elastic tube bundles.

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references

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JI Jiadong, GE Peiqi, BI Wenbo. Numerical analysis on shell-side flow induced vibration responses of multi-row elastic tube bundles in heat exchanger [J]. Journal of Vibration and Shock, 2016, 35(20): 85-89.

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毕文波 1

葛培琪 1

季家东 1

CHEN Qinghua

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ZHAO Jinhui

NI Xuwang

Related Institution

School of Mechanical Engineering, Shandong University

安徽理工大学第一附属医院

安徽理工大学机电工程学院

Institute of Refrigeration Technology, University of Shanghai for Science and Technology

School of Energy and Power Engineering, Xi'an Jiaotong University

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