COMPUTE THE IIHS INTRUSION BASED ON THE SEAT AND THE MEASURING POINT¶
Computes the IIHS intrusion metric by calculating the displacement of a structural measuring point relative to a moving seat reference frame. Given time-history coordinate curves for both the seat and the measurement node, it returns the resultant intrusion curve used in IIHS side/small-overlap crashworthiness evaluations.
When to use¶
Classification: process.
Tagged: coordinate_transform, crash_kinematics, iihs, intrusion, seat_reference, side_impact, small_overlap, time_history.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Seat X | seat_x | vector | — | Time-history curve of the seat reference point X coordinate (mm or model units); used as the moving reference frame origin in the X direction — required unless the seat remains stationary. | |
| Seat Y | seat_y | vector | — | Time-history curve of the seat reference point Y coordinate (mm or model units); used as the moving reference frame origin in the Y direction — required unless the seat remains stationary. | |
| Seat Z | seat_z | vector | — | Time-history curve of the seat reference point Z coordinate (mm or model units); used as the moving reference frame origin in the Z direction — required unless the seat remains stationary. | |
| Location X | location_x | vector | — | Time-history curve of the structural measurement node X coordinate (mm or model units); represents the intrusion measurement point position in X extracted from the simulation (e.g., binout nodout). | |
| Location Y | location_y | vector | — | Time-history curve of the structural measurement node Y coordinate (mm or model units); represents the intrusion measurement point position in Y extracted from the simulation. | |
| Location Z | location_z | vector | — | Time-history curve of the structural measurement node Z coordinate (mm or model units); represents the intrusion measurement point position in Z extracted from the simulation. | |
| Location Type | location_type | scalar | lower-hinge | Node Location | |
| X Is Outward When The Difference Is | xisoutwardwhenthedifferenceis | scalar | neg | X is outward when the difference is | |
| Y Is Outward When The Difference Is | yisoutwardwhenthedifferenceis | scalar | neg | Y is outward when the difference is |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curves_iihsintrusion_output_1 | curves_iihsintrusion_output_1 | vector | Resultant IIHS intrusion time-history curve (mm or model units) representing the displacement of the measurement node relative to the seat reference frame; peak value is the reportable IIHS intrusion KPI. |
Disciplines¶
- cae.postprocessing.response
- data.curve.pair
- 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=curves_iihsintrusion
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