Constantin wrote on Thu, 16 July 2009 11:44 |
Isn`t it the mass and the springstiffness which is important for the resonant freq? It`s quite easy to find out the mass of different steel`s. Or do you talk about the rigity of the membrane as part of it`s amount of absorbtion?
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They are all important
About steel, they can be very different. They can have the same mass but completely different behaviours. For ex High-strength steel will be very very stiff, and yet have the same mass as a rather elastic type of steel. And so on. So mass/thickness while being a good indicator, is indeed not sufficient...
(Yes, my wife works for the steel industry, no foolin' around with those things at home
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Constantin wrote on Thu, 16 July 2009 11:44 |
i would be happy when you point out why you wouldn`t choose steel.
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I would use a system using air as a spring, with a material with high resilience but still a "hard" material. For ex some thermosplastics (PMMA) are great for that purpose.
If I told you more I'd have to kill you
But again, steel as you describe it WILL WORK. Just pointing out a few other options out there, which may be more suitable.