Hydraulic Port Volumes - MapleSim Help

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Hydraulic Port Volumes

 

Description

Equations

Variables

Connections

Description

Some hydraulic models have optional volumes connected to their ports that are instantiated when the coresponding Use volume X boolean parameter is set to true (checked).

When a port volume is enabled, the icon changes to show an oval volume connected to the port. The following equations are added to the model. The K parameter is the bulk modulus of the fluid.

Equations

qVX={dVfXdtUse volume X0otherwise

VfX=VX1+pXK

Variables

Name

Units

Description

Modelica ID

pX

Pa

Pressure at port X

pX

qVX

m3s

Flow rate into port X's optional volume

qVX

VfX

m3

Effective volume at port X

VfX

Connections

Name

Description

Modelica ID

portX

Hydraulic port

portX

Volume Parameters

Name

Default

Units

Description

Modelica ID

Use volume X

false

 

When true a hydraulic volume chamber is added to portX

useVolumeX

VX

1·10−6

m3

Volume of chamber X

Va

See Also

Hydraulics Library