Non linear spring

Altair Forum User

Dears, 

          I want to simulate a nonlinear spring. i have an experimental data of force and displacement, have input the data for the spring constant as a curve where the x-axis=displacement, y-axis=force. I have applied a force on the spring, but always getting the same displacement for different values of forces. Can any one help please

Unable to find an attachment - read this blog

Altair Forum User

Hi Aftab,

 

The curve is not defined properly in your model. Please check this.

Altair Forum User

Aftab,

 

FYI, refer to the Defining Non-linear Properties Using Curves in MotionVIew help.

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi Aftab,

 

I have changed the force value in the curve randomly and I can see the change in output force.

 

Make sure you have given the right independent variable.

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi,

I'm interested in the same topic. I need to model a nonlinear spring having a curve. I tried to download the .zip file but it is corrupted.

What should I do in order to realize a mass spring damper system using a nonlinear characteristic?

Altair Forum User

Hi @stefano1

 

You can simply create a mass and spring but provide nonlinear curve as suggested