Learning Forum

[RVVarun]

PROBLEM: Interpolation of points, which are later differentiated to study the curvature

USED COMMANDS/METHODS: I've tried using MFOURI, VITRP, and MOPER commands which generate interpreted data, however, the generated points when differentiated and plotted yield wavy/noisy behaviour (not desired) as the blue curve in the picture. This is because these commands apply different techniques of interpolation.

QUESTION: Are there any commands which use piecewise cubic interpolation with the not-a-knot method? 

Any suggestions are heartily appreciated, thanks in advance!

Regards

RVVarun

 

 

[Karthik R]

Hello,

Could you please confirm if you are using Mechanical APDL here?

Thanks.

Karthik

[RVVarun]

Hello Mr Karthik,

yes, I am using ANSYS APDL for interpolation. The points were later plotted in MS-Excel.

Thanks,

RVVarun

[RVVarun]

Hi all,ni have implemented De-Boor algorithm for my Problem and it worked for me. Consider this discussion is closed.nregards,nRVVarunn

[tsiriaks]

Thank you for the input RVVarunn