Nonlinear approach of vortex-induced vibration for line-like structures

作者：Sun Yanguo^*; Li Mingshui; Liao Haili

来源：Journal of Wind Engineering and Industrial Aerodynamics, 2014, 124: 1-6.

DOI：10.1016/j.jweia.2013.10.011

• Vortex-induced vibration (VIV)
• Line-like structures
• Nonlinear analysis
• Partial correlation
• Section model

Vortex-induced vibration (VIV) is one of self-excited vibration with limited amplitude, usually occurring on long and slender structures with lower damping. A nonlinear method based on Scanlan's nonlinear vortex-induced vibration model is proposed in this paper for interpreting the test results of section model into prototype structure. Partial correlation of vortex-induced aerodynamic force along span is considered in this method, and the identifying method of parameters in the semi-empirical mathematic model is improved. Validity of proposed theory is confirmed by section model tests and observed results in field of a long-span suspension bridge.

• 出版日期2014-1
• 单位西南交通大学