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    • Mark OLESEN's avatar
      ENH: lumped point motion using local linear basic functions (#1341) · b0136d83
      Mark OLESEN authored
      - the earlier implementation of externally controlled lumped point
        motion (see merge request !120 and OpenFOAM-v1706 release notes) was
        conceived for the motion of simple structures such as buildings or
        simple beams. The motion controller was simply defined in terms of
        an orientation axis and divisions along that axis.
      
        To include complex structures, multiple motion controllers are
        defined in terms of support points and connectivity.
      
        The points can have additional node Ids associated with them, which
        makes it easier to map to/from FEA models.
      
        OLD system/lumpedPointMovement specification
        --------------------------------------------
      
            //- Reference axis for the locations
            axis            (0 0 1);
      
            //- Locations of the lumped points
            locations       (0 0.05 .. 0.5);
      
        NEW system/lumpedPointMovement specification
        --------------------------------------------
      
            // Locations of the lumped points
            points
            (
                (0  0  0.00)
                (0  0  0.05)
                ...
                (0  0  0.50)
            );
      
            //- Connectivity for motion controllers
            controllers
            {
                vertical
                {
                    pointLabels (0 1 2 3 4 5 6 7 8 9 10);
                }
            }
      
        And the controller(s) must be associated with the given
        pointDisplacement patch. Eg,
      
           somePatch
           {
               type            lumpedPointDisplacement;
               value           uniform (0 0 0);
               controllers     ( vertical );   // <-- NEW
           }
      
      TUT: adjust building motion tutorial
      
      - use new controllor definitions
      - replace building response file with executable
      - add updateControl in dynamicMeshDict for slowly moving structure
      b0136d83
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