COMPUTE THE OLC AND PLOT THE TIME-HISTORIES OF OCCUPANT¶
Computes the Occupant Load Criterion (OLC) from a vehicle velocity–time curve and plots the resulting occupant velocity/acceleration–displacement time-histories. Use this worker to evaluate restraint system loading characteristics between free-flight and restraint phases of a crash pulse.
When to use¶
Classification: process.
Tagged: crash_pulse, free_flight, occupant_load_criterion, olc, restraint, time_history, vad, vehicle_velocity.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Curve | vehicle_velocity | vector | — | Vehicle velocity vs. time curve (units typically m/s or km/h vs. seconds) used as the source crash pulse for OLC computation; must be provided as a 2-column vector (time, velocity). | |
| Min Disp | min_disp | scalar | 65 | End-of-free-flight occupant displacement threshold (mm, default 65) that marks the lower bound of the OLC integration window; increase if the free-flight phase is longer than typical. | |
| Max Disp | max_disp | scalar | 300 | End-of-restraint occupant displacement threshold (mm, default 300) that marks the upper bound of the OLC integration window; adjust to match the expected maximum occupant travel for the vehicle class. | |
| Scale Factor | scale_factor | number | 1 | Multiplicative scale factor applied to the derived acceleration values (dimensionless, default 1.0); set to –1 to invert sign convention or to any other value to convert units before OLC computation. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curve_olc_occupant_vad_output_1 | curve_olc_occupant_vad_output_1 | vector | Computed OLC result curve representing the occupant velocity/acceleration–displacement time-history over the restraint window, suitable for downstream KPI extraction or overlay plots. |
Disciplines¶
- cae.postprocessing.response
- data.curve.transform
- engineering.crash.dynamics
- engineering.crash.occupant_safety
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curve_olc_occupant_vad
Auto-generated from transformation schema. Worker id: curve_olc_occupant_vad. Schema hash: 1a9ae3801c89. Hand-curated docs in workerexamples/ override this page when present.