Column Critical Buckling Loads - Page 2

 

thats like throwing a meaty bone to a pack of dogs and asking them not to
chew it :)

 

You have been rare lately John.  Good to see you back.

Vaughn

 

you can always use different cells for each section of the calc and use
another cell to do the final numbers referencing the cells in the
equation.. that way you can watch each part to see if there are some funny
numbers cropping up.

best of luck!

-z

 z,

On a side note, have you ever visited OtherPower.com hydro page?

I read over there a lot and someone asked if anyone was using a
WindBlue generator, so I pointed him at your site and you.

Vaughn,

You where right about just replacing the square brackets with
parentheses (see below) thanks for your help.

Neon John,

You where right about the formula being wrong, I was really wrong in
thinking a university physics department couldn't post simple math
errors, I can't believe one of the student haven't pointed that out.

The next example that they give uses a larger column with the same
formula:

(34000 / 1.85) * (1 - (1 / 2) * (69.3 / 132)^2) = 15,845

My spread-sheet agrees those results using the same formula with new
variables so it seems that the results given for the first formula
(the one you hand calculated) was wrong. I sent the instructor an
email like you suggested before I ran into this latest discovery. Be
interesting to see how they handle this?

Thanks Neon John,

Curbie

 wrote:



Kewl.  Be sure to post the reply.  Interesting to see if he weasles or
admits the mistake.


You be welcome.