Here's the kicker, the computer simulations showed us something that we didn't even anticipate and it checks out in reality. You see those shock waves? Those are sound waves compressing, and when the frequency of the peaks is around 6-10, there's almost NO buffeting whatsoever. The big instabilities happen when there's only 1-2 peaks.
That means the 6-10hz range is the resonant frequency for the instabilities. So if the wing fluttered at 6-10hz during transonic flight there would be no buffeting as the low amplitude waves would be cancelled out by the resonant frequency of the structure.
Here's the kicker, the computer simulations showed us something that we didn't even anticipate and it checks out in reality. You see those shock waves? Those are sound waves compressing, and when the frequency of the peaks is around 6-10, there's almost NO buffeting whatsoever. The big instabilities happen when there's only 1-2 peaks.
That means the 6-10hz range is the resonant frequency for the instabilities. So if the wing fluttered at 6-10hz during transonic flight there would be no buffeting as the low amplitude waves would be cancelled out by the resonant frequency of the structure.
https://www.youtube.com/watch?v=SesMFMNwWQ8
(post is archived)