Hexagonal Hammer Shanks

[Ron Nossaman]

---------------------- multipart/mixed attachment

>Yes. Ron's measure of stiffness of an elastic beam is the flexural 
>rigidity EI where E is Young's modulus and I is the moment of inertia of 
>the beam about the neutral axis (through the centroid of the cross 
>section). That's where the moment of  inertia comes into it - and those 
>values are tabulated for beams of various cross sections, e.g. standard 
>steel structural beam of various cross-sectional shapes. A loaded elastic 
>beam will take on a curvature according to its flexural rigidity.

Correct. It was as simple and straightforward a response to a simple and 
straightforward observation as I could produce. It wasn't general, it was 
specific. It wasn't complicated, it was simple. It had nothing to do with 
the inertial interactions in a piano action, just with a stiffness to mass 
ratio of different cross sections made of the same material - which I 
thought I had explained.

Ron N

---------------------- multipart/mixed attachment

---

Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.538 / Virus Database: 333 - Release Date: 11/10/2003

---------------------- multipart/mixed attachment--