Simulink Control Design™ - MathWorks

Linearization of Pneumatic System at Simulation

Snapshots

This example shows how to use the time based operating point snapshot feature in

Simulink Control Design. This example uses a model of the dynamics of filling a cylinder

with compressed air.

Pneumatic System Model

scdpneumaticlin

Get the Initial Simulation

[t,x,y] = sim('scdpneumaticlin');

Plot the Simulation Results

In this example, the supply pressure is closed and the system has an initial pressure of 0.2

MPa. The supply pressure is at 0.7 MPa and in the simulation the servo valve is opened to

0.5e-4 m. During the simulation, the pressure increases from the initial pressure of 0.2

MPa and eventually settles at the supply pressure.

plot(t,y);

2 Linearization