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WOLFRAM SYSTEM MODELER

DisplacementMachine

Model of a pump/motor with volumes

Diagram

Wolfram Language

In[1]:=

SystemModel["Hydraulic.PumpsAndMotors.Internal.DisplacementMachine"]

Out[1]:=

Information

This is a partial model of a pump/motor with volumes.

Limitations

This class is partial, which means that it cannot be instantiated. It is meant to be inherited by other classes. Volumetric efficiency is not included in the models.

Parameters (8)

medium	Value: Oil() Type: Medium Description: Medium in the component
D	Value: Type: Volume (m³) Description: Displacement per revolution
externalLeakage	Value: 1e-12 Type: PressureDependentLeakage (m³/(s⋅Pa)) Description: Leakage between cylinders
internalLeakage	Value: 1e-12 Type: PressureDependentLeakage (m³/(s⋅Pa)) Description: Leakage between cylinders
frictionD	Value: 1 Type: RotationalDampingConstant (N⋅m⋅s/rad) Description: Viscous friction
J	Value: 1 Type: MomentOfInertia (kg⋅m²) Description: Moments of inertia
tankPressure	Value: 100000.0 Type: Pressure (Pa) Description: Tank pressure
V	Value: 0.0001 Type: Volume (m³) Description: Volume

Connectors (3)

	port_b	Type: Port_b Description: Port for hydraulic fluid (unfilled icon)
	port_a	Type: Port_a Description: Port for hydraulic fluid (filled icon)
	flange	Type: Flange_a Description: One-dimensional rotational flange of a shaft (filled circle icon)

port_b

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

port_a

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

flange

Type: Flange_a

Description: One-dimensional rotational flange of a shaft (filled circle icon)

Components (12)

	medium	Type: Medium Description: Medium in the component
	volume_b	Type: Volume Description: Fixed volume with fluid storage
	volume_a	Type: Volume Description: Fixed volume with fluid storage
	inertia	Type: Inertia Description: 1D-rotational component with inertia
	friction	Type: Damper Description: Linear 1D rotational damper
	pumpMotorVariable	Type: BasicDisplacementMachine Description: Model of a pump/motor with variable displacement and no volumes
	externalLeakage_b	Type: RestrictionLaminar Description: Laminar restriction using conductance
	tank_b	Type: Tank Description: Simple tank with constant pressure
	tank_a	Type: Tank Description: Simple tank with constant pressure
	externalLeakage_a	Type: RestrictionLaminar Description: Laminar restriction using conductance
	internalLeakage_ab	Type: RestrictionLaminar Description: Laminar restriction using conductance
	fixed1	Type: Fixed Description: Flange fixed in housing at a given angle

Extended by (2)

VariableDisplacementMachine

Hydraulic.PumpsAndMotors.Internal

Model of a pump/motor with variable displacement and volumes

FixedDisplacementMachine

Hydraulic.PumpsAndMotors.Internal

Model of a pump/motor with fixed displacement and volumes