Hello David,

Here is how I do the calculation:

Note = FF
Sounding length = 1688 mm
Hz = 41
Constant for Yellow Brass = (Density x pi) / (9.81 x 10^12) = (8536 x pi) /
1 000 000 000 000 = 0,00000000273360192569

Kg  =  (Hz x Sounding length x diameter)^2  x constant for Yellow Brass =
(41 x 1688 x 1.15)^2 x 0,00000000273360192569 = 17,31584

Is something wrong in this formula?

Greetings,

Chris.

-----Oorspronkelijk bericht-----
Van: Harpsichords and Related Topics [mailto:[log in to unmask]] Namens
David Pickett
Verzonden: dinsdag 27 december 2016 16:45
Aan: [log in to unmask]
Onderwerp: Re: Yellow brass tension question

At 16:08 27-12-16, Chris Vandekerkhove wrote:

 >Dear members,
 >
 >How much tension is there on a yellow brass string which a sounding length
>of 1688 millimeter?
 >
 >The other parameters are:
 >
 >Note = F
 >Hz = 41 (derived from a1 = 415)
 >Density in kg/m³ for yellow brass = 8536  >String diameter = 1,15
millimeter  >  >According to my calculations it should be 17,46 but I would
like a second  >opinion.
 >
 >Sincerely,
 >
 >Chris.

For some reason, I make it 17.32 kg -- close enough?

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