Abstract
In this paper, the flexural vibration of the V-shaped beam with varying section and bending stiffness submerged in a quiescent viscous fluid is studied. Fluid-structure interactions are modelled through a complex hydrodynamic function that describes added mass and damping effects. A parametric study is conducted on the two-dimensional computational fluid dynamics of an oscillating V-shaped beam under harmonic base excitation to establish a handleable formula for the hydrodynamic function, which is in terms of the frequency parameter and the ratio between the gap of the beam cross-section and the width of the beam. The real part and imaginary parts of hydrodynamic function decrease with both the frequency parameter and the ratio. The frequency response of the V-shaped beam is obtained by solving the model numerically. Findings from this work can be used in the design of V-shaped structures of interest in marine applications such as the energy harvesting devices and micromechanical oscillators for sensing and actuation.
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Acknowledgements
The authors gratefully acknowledge the supports by the National Natural Science Foundation of China (Grant No. 11572190), the National Science Foundation for Distinguished Young Scholars (Grant No. 11625208), and the National Program for Support of Top-Notch Young Professionals.
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Hu, L., Zhang, WM., Yan, H., Zou, HX. (2019). Analysis of Flexural Vibration of V-Shaped Beam Immersed in Viscous Fluids. In: Mathew, J., Lim, C., Ma, L., Sands, D., Cholette, M., Borghesani, P. (eds) Asset Intelligence through Integration and Interoperability and Contemporary Vibration Engineering Technologies. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-95711-1_26
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DOI: https://doi.org/10.1007/978-3-319-95711-1_26
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