Calculating panel resonance

stephenmarklay · 4th February 2010, 11:29 PM

I am trying to figure out what the natural resonance is of the panels of my box.
I have calculated it with some equations I dug up but I am pretty sure that they are higher than they should be.

Does anyone know of a quick calculator for this?

planet10 · 5th February 2010, 02:21 AM

Given that many of the variables concerned with the material will be guesses, you are better off to just measure it (coud be as simple as a frequency generator & a mechanics stethescope).

BTW: higher is better

dave

stephenmarklay · 5th February 2010, 03:06 AM

I was able to come up with a range for a panel of height 11 inches using 9mm BB. Worst case (lowest freq.) comes out around 3-5k depending on the Elastic modulus I used. I thought is would be lower than this but maybe it is the correct magnitude.

I agree that your method would be be better but my way may stave off Alzheimers a little longer

4th February 2010, 11:29 PM	#1
stephenmarklay diyAudio Member Join Date: Nov 2009	Calculating panel resonance I am trying to figure out what the natural resonance is of the panels of my box. I have calculated it with some equations I dug up but I am pretty sure that they are higher than they should be. Does anyone know of a quick calculator for this?

5th February 2010, 02:21 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Given that many of the variables concerned with the material will be guesses, you are better off to just measure it (coud be as simple as a frequency generator & a mechanics stethescope). BTW: higher is better dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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5th February 2010, 03:06 AM	#3
stephenmarklay diyAudio Member Join Date: Nov 2009	I was able to come up with a range for a panel of height 11 inches using 9mm BB. Worst case (lowest freq.) comes out around 3-5k depending on the Elastic modulus I used. I thought is would be lower than this but maybe it is the correct magnitude. I agree that your method would be be better but my way may stave off Alzheimers a little longer

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