组合三棱柱振子流致振动运动特性分析  

Analysis of Flow Induced Motion of Combined Triangular Prism

作　　者：练继建 姚帅[1,3] 吴志川 邵楠 燕翔 王孝群[1,3] LIAN Ji-jian;YAO Shuai;WU Zhi-chuan;SHAO Nan;YAN Xiang;WANG Xiao-qun(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300350,China;Hebei Key Laboratory of Intelligent Water Conservancy,Hebei University of Engineering,Handan 056038,China;Marine Energy and Intelligent Construction Research Institute,Tianjin University of Technology,Tianjin 300382,China)

机构地区：[1]河北工程大学水利水电学院,邯郸056038 [2]天津大学,水利工程仿真与安全国家重点实验室,天津300350 [3]河北工程大学,河北省智慧水利重点实验室,邯郸056038 [4]天津理工大学,海洋能源与智能建设研究院,天津300382

出　　处：《科学技术与工程》2024年第15期6423-6430,共8页Science Technology and Engineering

基　　金：河北省高等学校科学技术研究项目(BJK2023099);河北省自然科学基金(E2022402074)。

摘　　要：以流致振动能量转换系统(flow induced motion energy conversion system,FIMECS)为基础,以截面形式和刚度为变量针对组合三棱柱振子进行试验,评估振幅、频率等指标。试验选取了组合三棱柱振子进行了模型试验,通过改变截面排布形式以及系统刚度来研究截面布局、刚度对组合三棱柱振子的影响。该研究旨在探究组合振子流致振动的最佳振动条件,为后续多振子流致振动研究扩展思路。试验结果表明:三种不同排布形式的组合振子,在不同刚度工况下都有较好的振动效果,Ⅰ型和Ⅲ型振子振动随流速变化表现为典型的涡激振动,Ⅰ型排布振子具有最好的振动表现。Based on the flow induced motion energy conversion system,the combined triangular prisms with the section form and stiffness as variables to evaluate the amplitude,frequency and other indicators was studied.The combined triangular prisms were selected for model test,as well as the influence of arrangement and stiffness on the combined triangular prisms were studied by changing the arrangement of the prisms and system stiffness.The aim is to explore the optimal condition for flow induced motion of the three triangular prisms in different arrangements,and to expand ideas for subsequent research on flow induced motion of multiple oscillators.The experimental results show that all the combined triangular prisms have good performance with different stiffness.Both the motion of type I prism and type III prism perform typical vortex induced vibration with the increase of flow velocity,the type I prism has the best performance.

关 键 词：海流能利用 流致振动 组合三棱柱 涡激振动 振动响应 

分 类 号：TV131.29[水利工程—水力学及河流动力学]