Transfer function from blocks diagram

Is possible to obtain the transfer function from a blocks diagram inserted by the user, on Matlab? I have a basic interconnected blocks diagram and I have to calculate the Transfer function from it, after reducing it in a more simple one-block only diagram

Answer 1

[Sebastian Castro]

It is possible to linearize a Simulink model to get a linear transfer function approximation of the (potentially) nonlinear model.

This requires the Simulink Control Design toolbox. See below for a few key links:

Linearization documentation page

Video showing linearization

- Sebastian

Answer 2

[Andrea Pagano]

I didn't find nothing useful with my problem....That's the block diagram I have to reduce by simplifying it in one-block-only diagram: