Using if expressions for creating law curves 1

[MbToxic]

I'm trying to create a law-defined curve. It has "left" and "right" parts

Knowing that there are "if" expressions in NX I tried using it, but when I create a curve using these laws constant function is displayed. Is it not possible to use "if" clauses, or am I doing something wrong?

In pic.1 are my expressions, pic.2 is what I get and how I create a curve, pic.3 is desmos variant of the "yc"

PS
I did this the stuff without using if clauses, but using two of them here creates not 4, but 8 expressions later and it snowballs into a mess of a calculation

 

[MANox]

Hello,

I don't know how use "if" statement in this expression, but I think this can help You:
https://www.youtube.com/watch?v=1VsJfLm4O_4&ab_channel=learnNX
I think You must create two curves. Only problem is select ranges:
p>t>0 and c>t1>p
Best regards

MANok
NX2027
TC14

 

[MbToxic]

I struggle to do it, can you help with this one? In first I just multiply by p, but idk what to do in the second

Only problem is select ranges:
p>t>0 and c>t1>p

 

[mmauldin]

In the camber line equation in pic #3, what do p, t, m, and c represent?

 

[MANox]

Hey,

I would like to help, but I am not sure:
In this expressions is "t" - unitless parameter from NX or dimension in X direction?
Best regards

MANok

 

[MANox]

Hello,

I try it.
You can use IF statement in Law Defined Spline, but You have wrong expression:

if (t<p)(y1)else(y2)
where:
y1 = m/p^2*(2*t*p-t^2)
y2 = m/(1-p^2)*((1-p^2)+2*p*t-t^2)

(you can type all expresions in one line)


If c= 1 and "t" in Chamber line equation is X value, Your curve is here:



Best regards
MANok

 

[mmauldin]

Looks like it works.

 

[MbToxic]

if (t<p)(y1)else(y2)

I worked! I guess I used old syntax or idk, thanks