涡激振动驱动悬臂梁和内摆系留浮筒的质量考虑

2014 Oceans - St. John's Pub Date : 2014-09-01 DOI:10.1109/OCEANS.2014.7003232

Wayne Liu, B. D'Angelo

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引用次数: 2

摘要

对于共振驱动的能量收集装置，质量因素在匹配结构谐振频率和流动驱动的涡激振动(VIV)频率以优化振动输入方面起着至关重要的作用。在本文中，我们提出:1)实验数据显示了质量比如何维持圆柱振荡器在大约1m /s流速下的“锁定”效应;2)分析计算显示了浮标和钟摆质量对匹配谐振频率和VIV频率的影响。

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Mass considerations for VIV driven cantilever beam and tethered buoy with internal pendulum

For resonance driven energy harvesting devices, mass considerations play a critical role in matching structural resonant frequency to flow driven Vortex Induced Vibration (VIV) frequencies for optimized vibration inputs. In this paper, we present: 1) experimental data showing how mass ratio can sustain “lock-in” effects for a cylinder oscillator in roughly 1 m/s flows and 2) analytical computations showing the effect of buoy and pendulum mass on matching resonant frequency to VIV frequency.

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2014 Oceans - St. John's

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