
Post by Br. Marius on Feb 28, 2015 17:05:38 GMT
Develop a finite element in time formulation to calculate steady flap response in hover (Use 3 elements) given (note: dot = star operator) \(\ddot{\beta}+\frac{\gamma}{8}\dot{\beta}+\nu_{beta}^2\beta=\frac{\gamma}{8}\theta_n\frac{\gamma}{6}\lambda\) where \(\theta_n=\theta_{1c}cos(\psi)+\theta_{1s}sin(\psi)\)



Post by Br. Marius on Mar 4, 2015 18:47:06 GMT
My answer doesn't really vary from the text in developing a formulation, unless he actually wants us to solve for the flap response. I say that because, in doing this, I converted the governing equation and the cyclic pitch input into the time domain so as to correspond with the timebased solution...and, in doing so, lost the ability to get an answer because of the size of the resulting terms. Not sure if I'm just making things too hard, but I have the formulation...I just can't solve it (even on the computer) without numbers because of the size of the terms involved. At least, that's how Mathcad is treating me.
How is this working out for you all?

