宋玉泉,谭俊哲,袁鹏,司先才,杜修茂,李昌明

• 1:中国海洋大学工程学院
• 2:中国海洋大学山东省海洋工程重点实验室
• 3:中国海洋大学青岛市海洋可再生能源重点实验室

摘要(Abstract)：

为了研究不同刚度涡激振动系统对圆柱振子振动特性的影响，本文建立了单自由度涡激振动系统的仿真模型，采用计算流体力学(CFD)方法并结合重叠网格技术进行数值模拟。通过与公开发表的文献数据进行对比，验证了模型的精度和方法的可靠性。本文对时变流速下圆柱振子的振幅响应、频率响应和尾涡特征的变化情况进行了详细分析。仿真结果表明：当圆柱振子的振幅随流速的改变而降低时，调整弹簧刚度的大小，可使其保持较大的无量纲振幅和振动频率，并使尾流脱落旋涡之间的间距增大，且脱落模式由“2S”模式变为“2P”模式。

关键词(KeyWords)： 涡激振动;弹簧刚度;计算流体力学;重叠网格;圆柱振子

Abstract:

Keywords:

基金项目(Foundation): 国家重点研究发展计划项目(2018YFB1501903);; 山东省重点研究发展计划项目(2019GGX103012)资助~~

作者(Author): 宋玉泉,谭俊哲,袁鹏,司先才,杜修茂,李昌明

DOI: 10.16441/j.cnki.hdxb.20220325

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