What is the frequency range for Aeolian vibrations?

The frequency range for Aeolian vibrations is correctly identified as 3-150 Hz. This type of vibration occurs when wind interacts with structures, such as suspension bridges or tall poles, causing oscillations at relatively low frequencies. The range of 3 Hz to 150 Hz is significant because it encompasses the frequencies typically induced by wind forces acting on these structures, allowing for resonance phenomena that can lead to noticeable vibrations. Understanding this range is essential for structural engineers and designers to ensure that the design can withstand or mitigate the effects of such vibrations.

In contrast, the other ranges provided do not accurately capture the frequencies associated with Aeolian vibrations. For example, the range from 0-50 Hz is too broad and does not reflect the specific nature of these oscillations, while the ranges of 100-300 Hz and 50-200 Hz are higher than what is typically observed in Aeolian scenarios, focusing instead on higher frequency effects not primarily caused by wind interactions.