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ptc-45377131-Visitor
1-Visitor
April 6, 2012
Question

Sensitivity Analysis in Mathcad 14

  • April 6, 2012
  • 9 replies
  • 3847 views

Hello all,

I am beginner in mathcad 14 and right now i'am working in sensitivity analysis of Steel Catenary Riser. I have a lot of equations with summary at the end. The problem is I want to change constants that I define in beginning of worksheet many time to analyze its sensitivity. Can I use loop or global definition for this ?

9 replies

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Fred_Kohlhepp23-Emerald I
23-Emerald I
April 6, 2012

Global definitions work well for this if you're playing "What if" games.

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ptc-45377131-VisitorAuthor
1-Visitor
April 6, 2012

Well, I playing plenty of what if games. For each constant I want to change it 10 to 100 times to analyze its sensitivity to the result. The change is incrimental so can I use programming in mathcad to do it?. Changing global definition for at least 50 times seem realy tiring for me.

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VladimirN24-Ruby IV
24-Ruby IV
April 6, 2012

Hello!

Can you attach your worksheet to the message?

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ptc-45377131-VisitorAuthor
1-Visitor
April 6, 2012

Ah yes, I forgot to attach it.

Basically, I want to change the constants in Design Basis, 4 in total (Outer Diameter, SG, Water Depth, Internal Pressure),multiple times to see which influence wall thickness greatly. The file I attach only a fraction of calculation I do so I looking for loop to make it easier.

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wayne12-Amethyst
12-Amethyst
April 6, 2012

Suggest writing as functions, something like the attached

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