With a multi blade installation.... the ice weight balance point is very likely different for each blade... equating to out of balance load against the rotational center of mass. Should be fun to watch... from a distance... through heavy lens.
Thanks Craig... I knew we had a learned expert math fellow in our midst. You nail it nicely with the formula. On Sat, Jan 25, 2020 at 11:28 AM Craig via Mercedes <mercedes@okiebenz.com> wrote: > On Sat, 25 Jan 2020 11:51:21 -0600 Curley McLain via Mercedes > <mercedes@okiebenz.com> wrote: > > > Wait til spring? The rotors turn so slow, I am not sure imbalance is > > a big problem. > > 4 pi^2 m r > F = -------------- > t^2 > where, F = Centrifugal force > pi = 3.14159... > m = mass > r = radius of mass > t = rotational period > > t may be smaller than we are used to in automobiles, etc., but m can be > rather high and r can be huge. > > I would say imbalance can be a problem. > > Now if the blades are heated ... > > > Craig > > > P.S. The formula above is where my domain name came from. > > > > > Mitch Haley via Mercedes <mailto:mercedes@okiebenz.com> > > > January 25, 2020 at 11:33 AM > > > > > > Typically wind turbines are braked and shut down in periods of high > > > wind. But how do you start it back up when it's out of balance from > > > ice accumulation? > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
