.. _auto_curves_barrier_force_analyzer:

*CURVES BARRIER FORCE ANALYZER*
===============================

Analyzes barrier front-wall force distributions from crash simulations or physical tests by mapping per-cell force time-histories onto a 2-D barrier grid (rows × columns) and correlating them with vehicle displacement. Use this worker to generate spatially resolved force summaries for frontal or offset barrier crash events.

When to use
-----------

Classification: **process**.

Tagged: ``barrier``, ``barrier_force``, ``crash``, ``force_distribution``, ``front_wall``, ``grid_mapping``, ``offset_barrier``, ``physical_test``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Barrier Forces
     - barrier_forces
     - vector
     - —
     - ✓
     - Collection of force time-history curves (one per barrier cell) measured on the front wall, from simulation or physical test; cell names must encode row/column identifiers parseable by the row_p and col_p regex patterns.
   * - Vehicle Displacement
     - vehicle_disp
     - vector
     - —
     - ✓
     - Vehicle displacement time-history curve used to align or correlate the barrier force data along the crush axis; typically in mm.
   * - Row Number Regex
     - row_p
     - scalar
     - ([A-Z])-
     - ✓
     - Regular-expression pattern used to extract the row identifier from each barrier cell's channel name; default '([A-Z])-' captures a single uppercase letter before a hyphen — change only if your naming convention differs.
   * - Col Number Regex
     - col_p
     - scalar
     - -([A-Z]+)
     - 
     - Regular-expression pattern used to extract the column identifier from each barrier cell's channel name; default '-([A-Z]+)' captures one or more uppercase letters after a hyphen — change only if your naming convention differs.
   * - Bottom Barrier Offset Distance
     - barrier_offset
     - scalar
     - 80
     - 
     - Vertical distance (mm) from the bottom of the barrier to the first active cell row; default 80 mm — adjust to match the physical barrier geometry.
   * - Barrier Width
     - barrier_width
     - scalar
     - 1000
     - 
     - Total physical width of the barrier face (mm); default 1000 mm — used to scale the spatial force map to real coordinates.
   * - Barrier Height
     - barrier_height
     - scalar
     - 1000
     - 
     - Total physical height of the barrier face (mm); default 1000 mm — used to scale the spatial force map to real coordinates.
   * - Force Scale Factor
     - x_sf
     - scalar
     - 1.0
     - 
     - Force scale factor applied uniformly to all barrier force channels; default 1.0 (no scaling) — set to a unit-conversion factor when raw data is not in the expected force units.
   * - Disp Scale Factor
     - y_sf
     - scalar
     - 1.0
     - 
     - 
   * - Return Type
     - return_type
     - select
     - width_height
     - 
     - 
   * - Width Direction
     - width_direction
     - select
     - lr
     - 
     - 
   * - Height Direction
     - height_direction
     - select
     - bt
     - 
     - 
   * - Subtract Barrier Width by 50% for Centerline
     - width_centerline
     - select
     - no
     - 
     - 
   * - Percentage of Max that each cell must absorb
     - contiguous_area_factor
     - scalar
     - 20
     - 
     - When neighboring cells match this value, they are considered as contiguous
   * - Order of Barrier Forces
     - barrier_forces_order
     - select
     - numbered
     - 
     - 

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - Barrier Force Summary
     - barrier_force_summary
     - vector
     - Tabular vector dataset summarising per-cell and aggregated barrier forces mapped onto the 2-D row-column grid, suitable for downstream KPI extraction or visualisation.

Disciplines
-----------

- cae.postprocessing.response
- data.curve.pair
- data.statistics
- engineering.crash.dynamics

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=curves_barrier_force_analyzer <https://www.d3view.com/api/workflow/example?id=curves_barrier_force_analyzer>`_

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curves_barrier_force_analyzer</code>. Schema hash: <code>463a849ca7c9</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
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