I need to add this equation in simulink

How to build a simulink model with this equation? I am not able to understand how the modulus of x and the x^3 will be in the model.

[Sam Chak]

@Anish Sundar Gowthaman

What is delta δ?

By the way, are you having trouble building the entire differential equation or just the absolute value term?

At first glance, it looks a nonlinear spring equation.

[Anish Sundar Gowthaman]

It is a constant

[Anish Sundar Gowthaman]

The term |X|X^3 alone. I don't know to build this part. Is it possible for you to show in a drawing? Like as in blocks

Answer 1

[Abderrahim. B]

Hi !

1. To implement x^3: use math block, open the block and change function to pow .
2. To implement |x| , use abs block

Hope this helps

[Anish Sundar Gowthaman]

@Abderrahim BELISSAOUI Yes I understand that . Should it be like this, The |X| should be before X^3 or after that

[Abderrahim. B]

@Anish Sundar Gowthaman there is a block called Product that you can use to do the multiplication of |X| and X^3 .