[sdiy] oscillating a plate

[jhaible]

Where did you fix the plate?
You might have just forced a node at a location where
the 60Hz would create the highest amplitude on the plate ...

Good Reading: A. Benade, forgot the exact title, a book about
the physics of musical instruments.

JH.

-----Ursprüngliche Nachricht-----
Von: <cris at music-service.nl>
An: <synth-diy at dropmix.xs4all.nl>
Gesendet: Dienstag, 1. April 2003 10:04
Betreff: [sdiy] oscillating a plate


> Hi all,
> i don't think this is the best forum for this question, but i have to
try...
> i have a 1,52m long metal plate and i want to bring this plate in
> selfoscillation with sound, this sounds crasy but some people do
> things like that....
> I hang this plate vertically and i put a frequency of 60 Hz in the front
> nothing happened. I think you need 1/4 of the wavelengt in frequency
> to make this plate to oscillate, but nothing happened, only my ears
> and my speakers are almost damaged.....
> If somebody knows something about this, just some links or
> something like that, please please help me, because i get more and
> more frustrate with this problem....
> thanks in advance
> cris
>
>