Study on Flow-induced Vibration Characteristics of 2-DOF Hydrofoil Based on Fluid-Structure Coupling Method

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外文摘要：The flutter of a hydrofoil can cause structural damage and failure,which is a dangerous situation that must be avoided.In this work,based on computational fluid dynamics and structural finite element methods,a co-simulation framework for the flow-induced vibration of hydrofoil was established to realize fluid-structure interaction.Numerical simulation research was conducted on the flow-induced vibration characteristics of rigid hydrofoil with 2-DOF under uniform flow,and the heave and pitch vibration responses of hydrofoil were simulated.The purpose is to capture the instability of hydrofoil vibration and evaluate the influence of natural frequency ratio and inertia radius on vibration state to avoid the generation of flutter.The results indicate that when the inflow velocity increases to a certain critical value,the hydrofoil will enter the flutter critical state without amplitude attenuation.The attack angle of a hydrofoil has a significant impact on the vibration amplitude of heave and pitch.Additionally,the natural frequency ratio and inertia radius of the hydrofoil significantly affect the critical velocity of the flutter.Adjusting the natural frequency ratio by reducing the vertical stiffness or increasing the pitch stiffness can move the vibration from a critical state to a convergent state.

外文关键词：

HydrofoilFlutterFlow-induced vibrationFluid-structure interactionCritical velocity

作者：

Yichen Jiang、Chuansheng Wang、Jingguang Li、Chunxu Wang、Qing Wang

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作者单位：

School of Naval Architecture,Dalian University of Technology,Dalian 116024,China

AVIC Aerodynamics Research Institute,Harbin 150001,China

China Ship Development and Design Center,Wuhan 430064,China

基金：

National Natural Science Foundation of ChinaChinese Academy of Sciences Youth Innovation Promotion AssociationFundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central UniversitiesLiaoning Revitalization Talents Program

项目编号：

520010432020205DUT22GF202DUT20TD108XLYC1908027

出版年：

2023

DOI：

10.1007/s11804-023-00380-4

哈尔滨工程大学学报(英文版)

哈尔滨工程大学

哈尔滨工程大学学报(英文版)

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影响因子：0.381

ISSN：1671-9433

年,卷(期)：2023.22(4)

参考文献量39