Abstract In this paper, cross-flow vibrations of two identical elastically mounted circular cylinders in tandem arrangement have been investigated in a wind channel at Reynolds number Re = 4000–42000. The spacing ratios S/D are from 1.2 to 8.0. The vibration amplitude, oscillation frequency fo and vortex shedding frequency fs are investigated. Based on the vibration characteristics, three regimes can be classified. In Regime Ⅰ (S/D ≤ 1.5), the upstream cylinder experiences galloping vibration, while the downstream cylinder undergoes fluctuating with multiple peaks; In Regime Ⅱ (1.5

中文翻译：

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利用风洞实验研究串联排列的两个相同弹性安装圆柱体的横流振动

摘要 本文研究了雷诺数Re = 4000-42000的风道中串联排列的两个相同弹性圆柱体的横流振动。间距比 S/D 为 1.2 至 8.0。研究了振动幅度、振荡频率fo和涡旋脱落频率fs。根据振动特性，可以分为三种状态。第一阶段（S/D ≤ 1.5），上游圆柱体经历飞驰振动，而下游圆柱体经历多峰波动；在政权Ⅱ (1.5