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## Discussion board help and admin topics => Half Baked Ideas => Topic started by: EMuntinga on February 11, 2006, 08:44:10 AM

Title: resonant freq from material
Post by: EMuntinga on February 11, 2006, 08:44:10 AM
hello ,

does somebody know where i can find the resonant freq from material ( iron for example )
or a way to calculate it

(sorry for my engels)

gr
ernst muntinga
the netherlands
Title: Re: resonant freq from material
Post by: rensseak on February 11, 2006, 10:13:49 AM
hello ,

does somebody know where i can find the resonant freq from material ( iron for example )
or a way to calculate it

(sorry for my engels)

gr
ernst muntinga
the netherlands

Title: Re: resonant freq from material
Post by: IcyBlue on February 11, 2006, 10:35:58 AM
does somebody know where i can find the resonant freq from material ( iron for example ) or a way to calculate it
what do you mean with the 'resonant frequency of material' ? There are so much different processes that take place, which can get into resonance with a external excitation. There are e.g. spin resonances, electron transitions, molecular vibrations a.s.o. - each of them having very different excitation energies, i.e. resonant frequencies.

You can look at http://www.cis.rit.edu/htbooks/mri/inside.htm , though I doubt this what you are looking for.
Title: Re: resonant freq from material
Post by: EMuntinga on February 12, 2006, 08:57:17 AM
hello ,

i want to know how i can let rvs resonate (stainless steel )
and how i can do it
Title: Re: resonant freq from material
Post by: EMuntinga on February 16, 2006, 08:54:44 PM
if i had two stainless steel pipes
say one of 30 mm o and the other 25 mm o and put them together
can i create a resonant between them say in water
and with a external pulser.

Title: Re: resonant freq from material
Post by: ring_theory on February 28, 2006, 06:13:01 PM
Everything that exists has a resonant frequency and can be effected by an outside force. I think i know what your attempting and your along the right lines. wave harmonics rules the universe. EVERYTHING even quantum manifestations are effected by wave harmonics. the plastic on your monitor is resonating it is in motion the very atoms bonded at the molecular level are in motion. However most we see as a solid is moving extremely slow. Liquids are what we can see wave harmonics in action via the waveform. Everything is effected by an outside force conservation laws predict that.

However the plastic on your monitor is a closed system sealed by the event in time of molding. It happily serves it's purpose while the threat by outside forces such as heat or impact even the very air that sustains us is a threat to it and will eventually succome to these outside forces.

Anyways stainless steel is moving even slower than plastic and resists change and outside forces that plastic cannot endour. I'd say that meeting or exceding the resonant frequency of said material will deform and break down at the molecular level. However it is a matter of intelectual property that heat is commonly used. However sonics and wave harmonics are still in it's infantcy. as far as i'm concerned the perfect waveform will be able to do this.