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结构与尾流非线性耦合涡激振动预测模型
Alternative TitlePrediction of vortex-induced vibration of cylinder based on the nonlinear coupling of structure and wake oscillator
郑仲钦; 陈伟民
Source Publication海洋工程
2012-11-15
Volume30Issue:4Pages:37-41
ISSN1005-9865
Abstract预测圆柱涡激振动的尾流振子模型中,通常采用线性的耦合模型,例如位移或者速度、加速度耦合来表征结构对尾流的作用。三种线性模型在预测圆柱锁频阶段的动力特性时存在差异,而且适用范围也受质量比的限制。提出了考虑结构与尾流动力非线性耦合的模型,该模型基于加速度耦合并结合速度耦合进行修正,适用范围不受质量比的影响;与实验结果的对比表明该模型可以更合理地给出锁频区域以及结构位移响应和尾流升力。最后,利用新模型讨论了质量比对锁频阶段结构振动幅值、尾流升力及频率比的影响;结果表明,随着质量比的增大,结构锁频区域变窄,结构振幅和尾流升力幅值减小。
Keyword涡激振动 尾流振子模型 流固耦合 质量比 锁频
Subject Area结构振动与噪声
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Indexed ByCSCD
Language中文
Funding Organization中科院方向性资助项目(KJCX2-YW-L07);中央高校基本科研业务费专项资金资助项目(YWF-10-01-B05)
CSCD IDCSCD:4705574
Department流固耦合系统力学重点实验室
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46507
Collection流固耦合系统力学重点实验室
Corresponding Author陈伟民
Recommended Citation
GB/T 7714
郑仲钦,陈伟民. 结构与尾流非线性耦合涡激振动预测模型[J]. 海洋工程,2012,30(4):37-41.
APA 郑仲钦,&陈伟民.(2012).结构与尾流非线性耦合涡激振动预测模型.海洋工程,30(4),37-41.
MLA 郑仲钦,et al."结构与尾流非线性耦合涡激振动预测模型".海洋工程 30.4(2012):37-41.
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