I am trying to do a very simple simulation in Simscape but I have the feeling I still don't fully grasp the conservative ports and physical signals.
I have a very simple pneumatic model: A vessel of volume V, an air pump, a tube and a solenoid valve.
This is the electric equivalent circuit:
The tube is a resitance, the vessel a capacitor and the solenoid a simple switch. The pump is modelled as a constant current source.
In Simulink Simscape I have modeled it as a pneumatic model like this:
Except for the solenoid, because I have no idea how. In my electrical equivalent I short it to ground when the solenoid is switched:
and the system should release to the atmosphere.
I tried to model the solenoid by creating a switch using PS Switch and trying to switch the resistive tube A from the flow rate source to the atmosphere, but it does not allow a connection, probably because the signal types are of incorrect types.
Does anyone have an idea on how to tackle this? Should I make my own component?
