COMPUTE THE TIME AT WHICH THE Y REACHES A GIVEN VALUE FOR A SUSTAINED PERIOD¶
Scans one or more time-history curves and identifies the first x-axis (time) value at which the y-value exceeds a specified threshold and remains above it for a minimum sustained window. Use this worker to detect failure onset, trigger points, or threshold-crossing events in simulation or test signals.
When to use¶
Classification: process.
Tagged: curves, failure_detection, failure_point, sustained_window, threshold, time_history, ymax.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Curves From Which The Failure Point Is To Be Extracted | curvesfromwhichthefailurepointistobeextracted | vector | — | One or more time-history curves (x = time, y = response quantity) to analyse; accepts multiple curve objects in d3VIEW curve format. | |
| Maximum Y-value | y-max | scalar | — | Scalar threshold: y-values strictly greater than this value that persist for at least the specified time window will be classified as a failure point (same units as the y-axis of the input curves). | |
| Time Window | timewindow | scalar | — | Minimum duration (in the same time units as the x-axis) for which the y-value must continuously exceed y-max before the crossing is recorded as a failure point. | |
| Return Type | return_type | string | count | Controls what coordinate is returned at the failure point: ‘xval’ returns the time of first sustained threshold crossing, ‘yval’ returns the corresponding y-value; defaults to ‘count’. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curves_failurepoint_ymax_output_1 | curves_failurepoint_ymax_output_1 | dataset | Dataset containing the extracted failure-point coordinate (x or y value, depending on return_type) for each input curve, with one row per curve. |
Disciplines¶
- data.curve.transform
- data.signal_processing
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curves_failurepoint_ymax
Auto-generated from transformation schema. Worker id: curves_failurepoint_ymax. Schema hash: 5055e1772e32. Hand-curated docs in workerexamples/ override this page when present.