| 海流作用下悬浮隧道缆索的运动响应 |
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| 引用本文： | 闫宏生,罗钰淇,余建星. 海流作用下悬浮隧道缆索的运动响应[J]. 船舶力学, 2017, 21(11). DOI: 10.3969/j.issn.1007-7294.2017.11.005 |
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| 作者姓名： | 闫宏生 罗钰淇 余建星 |
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| 作者单位： | 天津大学水利工程仿真与安全国家重点实验室,天津 300072;高新船舶与深海开发装备协同创新中心,上海 200240;天津大学水利工程仿真与安全国家重点实验室,天津 300072;高新船舶与深海开发装备协同创新中心,上海 200240;天津大学水利工程仿真与安全国家重点实验室,天津 300072;高新船舶与深海开发装备协同创新中心,上海 200240 |
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| 基金项目： | 高新船舶开发装备协同创新中心;水利工程仿真与安全国家重点实验室联合资助 |
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| 摘 要： | 考虑参数激励频率,利用涡激振动方程,应用伽辽金和龙格库塔数值积分法,计算出不同流速下参数激励对缆索1阶振动的影响;进一步计算隧道—缆索耦合作用下缆索的振动响应。计算结果表明参数激励为缆索固有频率2倍时,缆索响应最大;隧道对缆索振动有明显的抑制作用。
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| 关 键 词： | 悬浮隧道 缆索 涡激振动 参数激励 |
Dynamics response of cables for SFT under current effect |
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| YAN Hong-sheng,LUO Yu-qi,YU Jian-xing. Dynamics response of cables for SFT under current effect[J]. Journal of Ship Mechanics, 2017, 21(11). DOI: 10.3969/j.issn.1007-7294.2017.11.005 |
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| Authors: | YAN Hong-sheng LUO Yu-qi YU Jian-xing |
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| Abstract: | Based on the equations of vortex-induced vibration, the effect of parametric excitation frequency on the first-order response of cable at different velocity of current is analyzed by considering the paramet-ric excitation. In the analysis, the Galerkin method and the Runge-kutta numerical integration are used. In the further analysis, vibration of anchor cable is calculated with model of coupled cable-tunnel. The re-sult shows that when the frequency of parametric excitation twice as the first-order natural frequency of cable, the displacement response is the largest. The displacement of cable is limited by submerged floating tunnel obviously. |
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| Keywords: | submerged floating tunnel cables vortex-induced vibration parametric excitation |
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