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sshastry12-Amethyst
12-Amethyst
August 28, 2017
Solved

Issue with Units

  • August 28, 2017
  • 1 reply
  • 8772 views

Hi

 

Attached is pdf file. If the value of h/1000 (See last page) is OK when used in isolation why is there a problem when it is used along with an equation. Program says there is an issue with units. Please advice.Sriprakash

 

Best answer by sshastry

Werner

 

Thank you for helping out. I managed to correct it. However, the last step where I calculate wcap, Im expecting the answer to be in KN/sq.m. Kindly take a look.

 

Sriprakash

1 reply

V
24-Ruby IV
ValeryOchkov24-Ruby IV
24-Ruby IV
August 28, 2017

You have h as length but 1.6 is dimensionless!

S
sshastry12-AmethystAuthor
12-Amethyst
August 28, 2017

So what is the work around. 1.6 is a constant according to the equation. How do I obtain the solution for this.

 

Shastry

W
Werner_E25-Diamond I
25-Diamond I
August 28, 2017

Thats the problem with those empiric and pseudo-empiric equations which are not unit consistent and depend on values of a specific unit dor the input.

 

You have to find out what the reason for the 1000 in your formula may be and have to find out which unit h should be provided when using the formula with numbers only.

 

My guess is that h usually is provided in mm and the denominator 1000 should convert it to meter.

If that guess is correct, you simply have to replace the "1000" by "1 m" to make it work.

 

For future questions please attach you Prime worksheet as well. For more complicated problems its simply hard to impossible to debug just a static picture or pdf.

If you are using Prime its a good idea to additionally attach a pic or pdf because many of us can't read files created by newer versions of Prime.

 

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