This sounds like an example of the whirling of shafts "Whirling of shafts occurs due to *rotational imbalance of a shaft*, even in the absence of external loads, which causes resonance to occur at certain speeds, known as critical speeds." Large electricity generating turbines have to be taken quickly through these critical speeds on start up.
On Sun, 17 Jul 2022 at 03:57, Sean Logan <paco66...@gmail.com> wrote: > I have a question about things that rotate: Is it meaningful to speak of > "resonance" when something is rotating in only one direction (Clockwise, > for example)? When I think of "resonance", I think of a guitar string > vibrating back and forth, or a parallel LC circuit, with the current > flowing back and forth. In both cases, the stuff is moving first one way, > then the other. We can talk about how many "back and forths" it makes in a > given amount of time. But what if you are spinning a flywheel in just one > direction? Is there some particular angular frequency which is > special, based upon other parameters of the system (maybe the flywheel's > mass)? I don't think I'd call it a "resonant frequency", but I would call > it something. I mean, is there a particular diameter or rate of rotation > at which a tornado can form and be stable -- any slower or faster and it > would fly apart? It sounds like that is what you are getting at with the > electron, Andrew. > > An old mechanic I used to live with said something to me once to this > effect: That there was a particular RPM of the flywheel in an engine at > which it was "resonant". That the engine and transmission worked best and > were happiest when the flywheel was rotating around this particular RPM. > > > > On Sat, Jul 16, 2022 at 5:01 AM Andrew Meulenberg <mules...@gmail.com> > wrote: > >> I like your derivation. It appears to be another indication of the >> resonance giving stability to the electron at a specific "size". A similar >> >
