modelAccumulator
Extends from OpenHydraulics.Interfaces.PartialFluidComponent (Base model for any component involving fluid).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Sizing | |||
| SI.Volume | liquidVolume | 0.001 | Liquid Volume |
| SI.Volume | gasVolume | 0.0011 | Gas Volume (must be larger than liquid volume) |
| SI.AbsolutePressure | p_precharge | 101325 | Gas precharge pressure |
| SI.AbsolutePressure | p_max | 3e7 | Maximum rated pressure |
| Advanced | |||
| SI.Volume | residualVolLiquid | liquidVolume*0.02 | Residual volume of liquid when accumulator is empty |
| SI.Volume | residualVolGas | gasVolume - liquidVolume | Residual volume of gas when accumulator is full |
| SI.Mass | pistonMass | 0.01 | Mass of bladder or piston |
| SI.TranslationalDampingConstant | pistonDamping | 1 | Damping constant for bladder or piston |
| Initialization › Fluid | |||
| OpenHydraulics.Types.AccInit | initType | OpenHydraulics.Types.AccInit.Pressure | Type of initialization (defines usage of start values below) |
| SI.Volume | V_init | residualVolLiquid | Initial liquid volume |
| SI.AbsolutePressure | p_init (from PartialFluidComponent) | environment.p_ambient | Initial temperature of the component |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| OpenHydraulics.Interfaces.FluidPort | port_a |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Basic.FluidPower2MechTrans | liquidChamber | ||
| Basic.AirChamber | gasChamber | ||
| Modelica.Mechanics.Translational.Components.Fixed | fixedLeft | ||
| Modelica.Mechanics.Translational.Components.Fixed | fixedRight | ||
| Modelica.Mechanics.Translational.Components.Mass | slidingMass | ||
| Modelica.Mechanics.Translational.Components.Damper | damper | ||
| OpenHydraulics.Fluids.BaseClasses.PartialFluid | oil (from PartialFluidComponent) | This model must be defined in each circuit; the type must be a subtype of PartialFluid |