LIVE PHYSICS / FIXED TIMESTEP 120 Hz
READY
INTERACTIVE ASSEMBLY № 01
Reciprocating Pump
Single-acting · Electric drive · Check valves
CAMERA
SHAFT SPEED ↗
0.0RPM
OUTPUT FLOW ◈
0.00L/s
PUMP PRESSURE ◉
0.0kPa
WATER TRANSFERRED ▤
0.0L
crank pin: x = r cos θ; z = z0 + r sin θ
piston wrist z = z0 + r sin θ + sqrt(L² − r² cos² θ)
Q [m³/s] = V_sweep · rpm/60 · ηvol · inlet_factor
Δp [Pa] = ρ g h + K Q²/opening²
τhydraulic [Nm] = Δp · V_sweep / (2 π ηmech)
P_hydraulic [W] = Δp · Q
Shaft angular acceleration obeys a torque balance between a power-limited electric drive, pump torque and rotational friction. Numerical integration is semi-implicit Euler with fixed 1/120-second substeps. Piston geometry and connecting rod pose are computed analytically from the current angle and are synchronized in rendering. The source and delivery tanks exchange exactly the same volume (until limits). No keyframe-only fake animations.
This is an educational, illustrative model of a fictional product: part names, masses, materials and operating figures are simplified and are not a manufacturer's drawing, a design basis or a safety/acceptance document.