Experimental and Numerical Study on the Dynamic Stability of Vortex-Induced Vibration of Bridge Decks
Experimental and Numerical Study on the Dynamic Stability of Vortex-Induced Vibration of Bridge Decks
复制标题
桥面涡激振动动力稳定性试验与数值研究
DOI：
10.1142/s0219455418500335
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发表时间：
2017-06
影响因子：
3.6
通讯作者：
Du Xiuli
中科院分区：
文献类型：
--
作者：
Xu Kun;Ge Yaojun;Zhao Lin;Du Xiuli
本文对圆柱涡激振动的动力稳定性进行了深入的研究。然而，很少有关于这一主题的研究桥面。为了填补这一空白，本研究的重点是桥面涡激振动系统的动力稳定性。本文采用了非线性动力学的一些新技术，如状态空间重构技术和Poincare映射技术。采用理论分析和试验研究相结合的方法对涡激振动系统的动力稳定性进行了评估，并以一典型桥面为例进行了分析。结果表明，实验观察到的滞后现象对应于涡激振动系统的鞍结分叉。通过本文提出的方法，建立了涡激振动系统的动力稳定性随风速的变化规律。进一步阐明了该系统的动力特性，为理解桥面涡激振动系统提供了有益的线索，同时也为数学建模提供了有价值的信息。
The dynamic stability of vortex-induced vibration (VIV) of circular cylinders has been well investigated. However, there have been few studies on this topic for bridge decks. To fill this gap, this study focuses on the dynamic stability of a VIV system for bridge decks. Some recently developed techniques for nonlinear dynamics are adopted, for example, the state space reconstruction and Poincare mapping techniques. The dynamic stability of the VIV system is assessed by combining analytical and experimental approaches, and a typical bridge deck is analyzed as a case study. Results indicate that the experimentally observed hysteresis phenomenon corresponds to the occurrence of saddle-node bifurcation of the VIV system. Through the method proposed in this study, the evolution of dynamic stability of the VIV system versus wind velocity is established. The dynamic characteristics of the system are further clarified, which offers a useful clue to understanding the VIV system for bridge decks, while providing valuable information for mathematical modeling.
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DOI：
10.1016/j.jweia.2006.01.017
发表时间：
2006-05
影响因子：
4.8
作者：
G. Diana;F. Resta;M. Belloli;D. Rocchi
通讯作者：
G. Diana;F. Resta;M. Belloli;D. Rocchi
影响因子：
3.3
作者：
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DOI：
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发表时间：
1993-11
期刊：
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影响因子：
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作者：
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通讯作者：
Indranil Goswami;R. Scanlan;N. P. Jones
DOI：
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发表时间：
1993-11
期刊：
Journal of Engineering Mechanics-asce
影响因子：
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作者：
Indranil Goswami;R. Scanlan;N. P. Jones
通讯作者：
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DOI：
10.1016/s0167-2789(02)00603-6
发表时间：
2002-10
期刊：
Physica D: Nonlinear Phenomena
影响因子：
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作者：
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通讯作者：
W. Tucker