Vortex-induced vibrations of a pipe subjected to unsynchronized support motions
Vortex-induced vibrations of a pipe subjected to unsynchronized support motions
复制标题
承受不同步支撑运动的管道的涡流引起的振动
DOI：
10.1007/s00773-017-0526-y
复制
发表时间：
2018-01
期刊：
影响因子：
--
通讯作者：
Wang L.
中科院分区：
文献类型：
--
作者：
He Fang;Dai H.L.;Wang L.
在这项研究中，考虑到管道两端支撑运动的相位差，对受涡激振动和非同步支撑运动影响的管道的非线性动力学进行了研究。我们首先使用一个基于（此处句子不完整，“based”后应该还有内容）的尾流振子模型。
In this study, the nonlinear dynamics of a pipe subjected to vortex-induced vibrations and unsynchronized support motions are investigated, considering the phase difference of support motions at two ends of pipe. We first use a wake oscillator model based on the van der Pol equation to describe the vortex-induced force, and validate the induced vibration amplitude of structure against the experimental data. Then, a nonlinear theoretical model representing the dynamic responses of the pipe system at different locations is constructed based on the Hamilton principle and Galerkin discretization. The resulting ordinary differential equations are numerically solved providing multi-mode approximations to the cross-flow amplitude and the lift coefficient. It is shown that the cross-flow amplitude of the pipe around the first lock-in region is significantly affected by the support motions, resulting in a greatly suppressed or increased vibration amplitude of the pipe. Moreover, the bandwidth of support excitation frequency between minimum and maximum vibration amplitudes changes with the phase difference, owing to the transition between aperiodic and periodic responses of pipe. In addition, the effect of geometric nonlinearity on the responses of pipe with support motions is also discussed.
登录
查看更多内容
浮动顶端升沉与立管涡激振动耦合的有限元动态分析
影响因子：
4.3
作者：
Chen Weimin;Li Min;Guo Shuangxi;Gan Kuan
通讯作者：
Gan Kuan
影响因子：
3.6
作者：
J. Chaplin;P. Bearman;Y. Cheng;E. Fontaine;J. Graham;K. Herfjord;F. J. H. Huarte;M. Isherwood;K. Lambrakos;C. M. Larsen;J. Meneghini;G. Moe;R. Pattenden;M. Triantafyllou;R. Willden
通讯作者：
J. Chaplin;P. Bearman;Y. Cheng;E. Fontaine;J. Graham;K. Herfjord;F. J. H. Huarte;M. Isherwood;K. Lambrakos;C. M. Larsen;J. Meneghini;G. Moe;R. Pattenden;M. Triantafyllou;R. Willden
稳定流中刚性平面边界附近圆柱体涡激振动的实验研究
影响因子：
3.5
作者：
Yang, Bing;Jeng, Dong-Sheng;Gao, Fuping;Wu, Yingxiang
通讯作者：
Wu, Yingxiang
影响因子：
2.6
作者：
Viet-Phan Doan;Y. Nishi
通讯作者：
Viet-Phan Doan;Y. Nishi
影响因子：
3.9
作者：
C. M. Larsen;K. Halse
通讯作者：
C. M. Larsen;K. Halse