domains

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domains

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In the Interface Editor every powertport (Iconic Diagram or Bond Graph) can be assigned a physical domain. 20-sim will use this information to prevent that ports of different physical domains may be connected. More popular: in this way you can never connect a translation model to an electric component.

 

PortDomain

Use the Interface Editor to assign a physical domain to a port.

In the Interface Editor you can select the physical domain that you want to assign to a port. The editor will show the corresponding port variables and the notation that should be used in the model equations.

 

The tables below show the available domains and their respective port variables.

 

power domain

across

through

 

Power

Mechanical

Translation

Rotation

Pneumatic

Thermal

Electric

Hydraulic

Magnetic

across

velocity

velocity

angular velocity

pressure

temperature

voltage

pressure

magnetomotoric force

through

force

force

torque

air flow

entropy flow

current

volume flow

magnetic flux

 

For the power domains the variables multiply to power. There are also some domains defined where the variables do not multiply to power. These are called pseudo domains. The following pseudo domains are defined.

 

pseudo domain

across

through

 

Pseudo Pneumatic

PseudoThermal

PseudoThermalH

PseudoHydraulic

pressure

temperature

temperature

pressure

mass flow

heat flow

enthalpy flow

mass flow

 

You can enter new (pseudo) domains in the Domains, Quantities and Units Editor. If the port is defined as a bond graph port, effort and flow are used to indicate the domain variables. The corresponding tables are shown below.

 

power domain

effort

flow

 

Power

Mechanical

Translation

Rotation

Pneumatic

Thermal

Electric

Hydraulic

Magnetic

effort

force

force

torque

pressure

temperature

voltage

pressure

magnetomotoric force

flow

velocity

velocity

am

angular velocity

air flow

entropy flow

current

volume flow

magnetic flux

 

pseudo domain

effort

flow

 

Pseudo Pneumatic

PseudoThermal

PseudoThermalH

PseudoHydraulic

pressure

temperature

temperature

pressure

mass flow

heat flow

enthalpy flow

mass flow