研究两个自由度的斜拉索风雨激振模型,利用符号代数语言Mathematica对系统进行数值分析,得到了索结构和水线的运动相图,结果表明他们的运动均收敛于稳定的极限环。同时分析讨论了拉索结构阻尼、风攻角等因素对系统运动的影响。
Two-degree model of rain-wind-induced vibrations of cable structure was studied. The original system was studied by numerical computation with symbol algebra language mathematica. The phase diagrams of cable and water-line were achieved. It showed that their moments converged to limit circles. The influence of damping of cable, angle of attack etc was discussed.