Ron Nossaman wrote: > > Soundboard assembly stiffness comes primarily from two sources; rib > stiffness, and panel compression. Ribs act as a linear spring in that if a > given rib deflects 3 millimeters under a 5 pound center load, then it will > deflect 10mm under a 10 pound center load. Panel compression acts as a > progressive rate spring, meaning that the more it is compressed, the > greater the resistance to compression. Ron... perhaps I just misunderstand... or is this a typo here... seems like you must have meant (for the ribs) "5 millimeters under a 5 pound load". If you did mean 3 mm under 5 lbs, and then 10mm under 10 lbs isnt this sort of regressive ? I.e. the more you load the ribs the less per lb they deflect ? Please clear me up on this one if you might. Cheers RicB -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html
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