Travel & Places Air Travel

Did Pterodactyls Have Challenges With Aerodynamic Flight Flutter - What Was Evolution"s Solution?

Flight flutter kills, especially when an aircraft is low and slow, or traveling at a high rate of speed ready to rip apart.
What's it like, it's like experiencing chaos in its most natural form.
If you are a pilot and have never had this unfortunate situation, it's similar to the shake of a nose wheel going down the runway when the shimmy dampener stops working, or a skateboard wiggling relentlessly going down a hill, until the rider falls off unable to control it.
Okay so, let's talk.
An interesting paper relevant to this line of inquiry might be: "A Historical Overview of Flight Flutter Testing," NASA Technical Memorandum # 4720, by Michael W.
Kehoe, October 1995 which states in its introduction; "High-speed aircraft are most susceptible to flutter although flutter has occurred at speeds of 55 mph on home-built aircraft.
In fact, no speed regime is truly immune from flutter.
" Interestingly enough, today aerospace engineers have all sorts of ways to solve these challenges, most of which use sensors, computer systems and algorithms to do this.
In the future, I suppose aircraft will have morphing wings, like that of a bird, with haptic sensors to deal with these things.
A bird for instance no doubt has such problems, the faster it flies the more challenging and a bird experiences pain in its nerves when it hurts, and of course prior to its wings ripping off or before it departs from flight.
Is this how birds deal with things, simply melding their wings to deal with the flutter, until it stops, remembering what they did, and then adjusting as to not do that again when experiencing similar situations? I believe so, and I think with better photography, mega-pixel video, we might be able to see it and better understand their strategies.
We could have birds fly through wind tunnels and then adjust the airflow to get them to flutter and then watch what they do to counteract this.
Such knowledge would go a long way in human science as we design the next generation of aircraft with morphing wings and control surfaces.
Luckily, NASA and aircraft prototype designers of all types have studied what causes flutter and attempt to avoid it, something that is not always possible for an aircraft which is perfectly stable, is generally not as maneuverable as desirable - this is especially a concern with fighter aircraft, thus, more and more are fly-by-wire and come with computer algorithms to take over and smooth out the situation.
The real answer may include morphing wings and control surfaces.
Please consider all this and think on it.

Leave a reply