I think Wolfgang's description regarding Eigen Frequencies is saying the same thing. Flutter is mechanical oscillation with positive feedback. I recall learning about Eigenvalues in linear algebra... but did not study aerospace or mechanical engineering... I suspect that reducing the "Eigen Frequency" is another term for trying to keep any harmonic oscillation low enough so that it doesn't feeback onto itself and cause the plane to damage itself. (i.e. prevent flutter).
On Mon, 22 Mar 2004 19:31:01 -0600, Mark Jones <flyk...@wi.rr.com> wrote: > Wolfgang, > The reason to balance the ailerons is not to achieve equal control > balance > between the two ailerons yet to achieve balance on the pivot point of the > aileron hinge to help eliminate flutter. Flutter is sudden and is seldom > recoverable before it destroys the control surface. Do a search in the > archives on flutter and you will have a nights worth of reading. > > Mark Jones (N886MJ) > Wales, WI USA > E-mail me at flyk...@wi.rr.com > Visit my KR-2S CorvAIRCRAFT web site at > http://mywebpage.netscape.com/n886mj/homepage.html > > >> Hi Netters, >> >> I followed the balancing discussion for some time now, and to through >> some >> more fuel into the fire (or to just post a dumb question): Shouldn't the >> Ailerons balance each other, since if the left one goes down the right >> one >> goes up? I personally do not recall that we used balancing weights on >> the >> gliders we build at the glider group in Germany. >> >> There was only one reason to add counterweights to ailerons, and that >> was > to >> increase inertia of the system as to reduce Eigen-Frequency of the whole >> system to a manageable frequency. Schleicher Aircraft used an interesing >> method in the ASW-19, by putting lead into the top of the control stick. >> >> You may forgive me if the self balancing of the ailerons is not possible >> with the KR-2, as I am not yet fully familiar with the control >> mechanics. > I >> got my plans only a few weeks ago and still in the study phase. >> >> Wolfgang >> >> >> >> _______________________________________ >> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >> please see other KRnet info at http://www.krnet.org/info.html > > > > _______________________________________ > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
