topic Re: Mix-matched units in Parameters using exponets in Inventor Forum

Mix-matched units in Parameters using exponets

Anonymous — Wed, 01 Mar 2017 12:50:47 GMT

Can someone help with this equation please. I am having trouble with mix matched units.

( ( ( 0.5 ul ) ^ ( MD * PI ) ) ^ 0.5 ul + ( PIPEOD ) ^ 0.5 ul ) * d17

d17 is unitless

PIPEOD is inches

MD is inches

Thank you for your help.

Re: Mix-matched units in Parameters using exponets

YannickEnrico — Wed, 01 Mar 2017 13:39:32 GMT

This should be usable:

isolate(Width;mm;ul)

Isolate(yourfunction;currentunit;expectedunit)

Edit:

Actually not sure if it works with an entire function, but then you can isolate the parameters separately

Re: Mix-matched units in Parameters using exponets

SBix26 — Thu, 02 Mar 2017 01:58:12 GMT

Are you sure this equation is correct? Written out in mathematical notation, it looks like this:

I can't make any sense of the units from this, so it's not too surprising that Inventor's math engine can't either. What are you trying to calculate?

Sam B

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Re: Mix-matched units in Parameters using exponets

Anonymous — Mon, 06 Mar 2017 14:45:18 GMT

Thank you guys. Yes i wrote the equation wrong. It was late in the evening when was doing this. Thank you for answering and your input. I wrote it over after reading your post.

((((MD*PI)^(2 ul))+(PIPEOD^(2 ul)))^(0.5 ul))*TIGHTLOOPS

MD is in inches

pipeod is in inches

tightloops is unitless