Experimental study on flow-induced vibration of single rod in axial flow

In this inquiry, a comprehensive experimental exploration delves into the flow-induced vibration traits of individual rods across varying circumstances. Utilizing a Laser Doppler Vibrometer (LDV), we measure vibration responses in diverse materials and structures of single rods, under varied constraint modes and inlet velocities ranging from 1 to 3 m/s. Statistical analyses, including root mean square and empirical mode decomposition (EMD), elucidate the acquired outcomes. Notably, results manifest an 84 % reduction in single-rod amplitude when under fixed support constraints compared to simple support. Varied vibration frequencies, attributed to distinct elastic moduli of materials, emerge as characteristics of these rods. A wire-wrapped configuration emerges as a consequential influencer on single-rod vibration, yielding a peak amplitude of 186.3 mu m. This research sheds light on axial flow-induced vibration traits, thus furnishing a cornerstone for forthcoming explorations in this realm.