BGMod Documentation / v3Component reference · matches the Elements library.
Pressure is gauge pressure relative to reference_pressure_abs (default 101325 Pa). Accumulator precharge and initial gas pressure are absolute.
Expand a component for its equation, parameters and initial state. Defaults match insertion from the library.
Equal gauge pressure; local volume flows balance.
Ports: p1, p2, …
—Common reference volume flow; signed pressures balance.
Ports: p1, p2, …
—Linear pressure loss, such as an idealized throttle.
Ports: H
value = 100000.0 · Pa·s/m³Constant hydraulic compliance; stores generalized liquid volume.
Ports: H
value = 1e-05, initial = 0 · m³/Painitial = 0.Constant fluid inertance; stores pressure momentum.
Ports: H
value = 50000.0, initial = 0 · Pa·s²/m³initial = 0.Prescribed gauge pressure; 0 Pa represents the reference tank.
Ports: H
value = 100, waveform = constant · PaPrescribed volume flow supplied to the network.
Ports: H
value = 0.001, waveform = constant · m³/sPorts: P, S
P/S ports belong to the selected physical domain. Enter a finite dimensionless n > 0, default 1. Local flows enter both ports. With input at P and output at S, output effort is input effort / n and output flow is n × input flow. TF neither stores nor dissipates energy; exactly one port supplies effort.
Pressure is relative to reference_pressure_abs. Represents ideal pressure conversion; leakage, friction and stroke limits are excluded.
P → TF:n → S
Ports: H · u
One hydraulic power port H, like R, plus dimensionless control input u (0–1). At u = 0 the passage closes; at u = 1 the resistance is R_open. Default R_open = 10⁷ Pa·s/m³. No stored state.
Advanced membership follows exposed port domains. The cylinder appears in Hydraulics and Translational mechanics. The pump curve has no electrical port; the gas accumulator has no thermal port.