How to solve an ODE in Simulink with non constant coefficients?

Hi, I am new to Simulink and want to solve a second order, non-linear and non-homogeneous ODE with variable coefficients.

It is the following:

.

The main part I am struggling with is how to implement the independent variable t into the model. Is there a specific block for this?

Thanks in advance for any suggestions.

Answer 1

[Paul]

Use a Clock block from the Sources library to output the simulation time (t).