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Flutter analysis

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pictsidhe

Well-Known Member
Joined
Jul 15, 2014
Messages
8,815
Location
North Carolina
I was reading Fung's aeroelasticity book and came across this page:


https://books.google.com/books?id=KetYrthKfEgC&lpg=PA271&ots=W_jOm0A2W5&dq=fung%20elastic%20analog%20flutter&pg=PA243#v=onepage&q=fung%20elastic%20analog%20flutter&f=false



Hmmm, modelling a wing electrically. These days, we can accurately simulate an electrical circuit. I also already know how to do SPICE simulations. With text input, you could generate a spice model with several hundred nodes, and just wait while a PC chews on the problem for a while. I much prefer this idea to solving a pile of differential equations. Flutter FEA the sneaky way!

Has anyone here tried electrically modelling a structure? That MacNeal book is pretty cheap at amazon, one is on it's way.

Non linear effects could also be modelled, if you can predict what sort of effects they might be.
From my flutter readings, that is mainly for stall flutter, no PDEs needed to predict that.
 
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