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MapleSim Hydraulics Library from Modelon

Ideal Pressure Source  Ideal pressure source

This component is an ideal pressure source. The output is directly controlled by input parameters or input signal, dependent on the value of the parameter useInput.

 

Equations

Variables

Connections

Parameters

Equations

T=T0oil+ΔTsystem

pB=pset+pampsin2πtimefp+θp

pabs=pB+patmoil

Variables

Name

Value

Units

Description

Modelica ID

pabs

 

Pa

Absolute pressure, used for all property calls

p_abs

T

 

K

Local temperature

T

psat

[1]

Pa

Gas saturation pressure

p_sat

ρsummary

[2]

kgm3

Density

summary_rho

pBsummary

pB

Pa

Pressure at port B

summary_pB

[1] oil.gasSaturationPressureT=T,vgas=oil.vgas

[2] oil.densityp=pabs,T=T,vair=oil.vgas,psat=psat

Connections

Name

Description

Modelica ID

oil

 

oil

portB

Port B, where oil leaves the component (q<0, pB<pA means 0<&Delta;p)

port_B

commandSignal

Connector of input signal used as flow rate

commandSignal

pset

 

p_set

Parameters

Name

Default

Units

Description

Modelica ID

use input

true

 

If true, input port is present

useInput

&Delta;Tsystem

0

K

Temperature offset from system temperature

dT_system

pbias

5.·106

Pa

Bias of pressure

pbias

pamp

0

Pa

Amplitude of sinusoidal pressure

pamp

fp

0

Hz

Frequency of sinusoidal pressure

pfreq

θp

0

rad

Phase shift

pphase

See Also

Pumps

MapleSim Hydraulics Library from Modelon Overview

 


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