Piano Rims (rambling post)

[Phillip L Ford]

On Sun, 30 Dec 2001 08:33:25  
 JIMRPT wrote:
>
>Phil;
> A few comments here if ya don mind.........
><< "It would be so light and flexible that it couldn't
>absorb any energy.">>
> Kinda the wrong slant here vis a vis soundboards??................A light 
>and flexible rim may not "absorb any energy" but it certainly will 
>'dissipate' energy and be unable to reflect any, or at least very little, 
>energy back to the board.
>Jim Bryant (FL)
>
Jim,
Another comment about this.  I find it interesting
that violins and guitars use very thin rims.  
Comparing a violin to a piano may be suspect because
the violin is constantly having energy poured into
it by the player whereas a piano gets one initial
burst of energy which then is going to dissipate in
some way and we have to be concerned about how.  But
a guitar also gets an initial burst of energy and
then no more, as in a piano.  You would think that
guitar builders would be more concerned about energy
dissipation than piano builders, but guitars have
not evolved to have heavy rims (relatively speaking).
Maybe they know something we don't.

Phil F


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