载流管路的流致振动响应快速和准确预报对舰船振动噪声优化设计具有极大的工程意义，本文采用Abaqus稳态线性动力学方法对三通载流管路梁、壳模型动力学特性进行仿真分析，以流场计算脉动压力分段积分集中载荷作为管路流致振动单向流固耦合的激励输入，对比分析了梁、壳模型在考虑流体激励不同相位、不同载荷范围等加载方式对三通载流管路振动响应特性的影响，并与试验结果进行对比分析。研究结果表明：载流管路的单向流固耦合振动响应计算可以以分布集中力的形式加载，但需考虑流体激励的随机相位，数值计算结果与试验误差小于3 dB，满足工程预报需求。
The rapid and accurate prediction of flow-induced vibration responses in fluid-carrying pipelines holds significant engineering value for the optimal design of ship vibration and noise reduction. In this study, the Abaqus steady-state linear dynamics method is employed to simulate and analyze the dynamic characteristics of beam and shell models for a T-branch fluid-carrying pipeline. The pulsating pressure obtained from computational fluid dynamics (CFD) simulations is converted into distributed concentrated loads through piecewise integration, serving as the excitation input for the one-way fluid-structure interaction (FSI) in flow-induced vibrations. A comparative analysis is conducted to investigate the effects of different loading conditions—including varying phases of fluid excitation and different load application ranges—on the vibration response characteristics of the T-branch pipeline using both beam and shell models. The numerical results are validated against experimental data.
2025,47(24): 45-50 收稿日期：2025-12-1
DOI：10.3404/j.issn.1672-7649.2025.24.007
分类号：U662.2
作者简介：周冉辉(1978-),男,硕士,工程师,研究方向为舰船总体设计技术研究及项目管理
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