Abstract：In order to study the wake galloping characteristics in a close spacing instability range,a series of wind tunnel tests based on an energy method were carried out. The imposed motion along quasi-elliptical orbits reproduced wake galloping phenomenon of a parallel cable by the forced vibration device. Based on the energy analysis method,the motion trajectory and the unstable region of the downstream cable was analyzed. And the mechanism of the wake galloping was studied from the work done by aerodynamic forces. The influence of amplitudes,velocities of wind flow and vibration frequencies on wake galloping of cables were further discussed. The investigation results show that the results with the energy method agree well with classical results and prove the reliability of the analysis method.
吴其林1，华旭刚2，胡腾飞3. 基于能量方法的拉索尾流驰振风洞试验研究[J]. 振动与冲击, 2017, 36(4): 218-225.
WU Qilin1,HUA Xugang1,HU Tengfei2. Investigation on wake galloping of parallel cables by wind tunnel test based on an energy method. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(4): 218-225.
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