RBE3 without dependent rotational DOFs is wrong.

[victorkemp]

Aka bug 6. Found by Brain with Claude

Eg. Only using DOFs 123 on all grid points:

RBE3    20              700     123     1.0     123     701     3.0     +A1
+A1     123     702     2.0     123     703

MSC solution:

                                             D I S P L A C E M E N T   V E C T O R
 
      POINT ID.   TYPE          T1             T2             T3             R1             R2             R3
           600      G      0.0            0.0            0.0            0.0            0.0            0.0
           601      G      0.0            0.0            0.0            0.0            0.0            0.0
           700      G      8.137255E-02  -9.803922E-04   2.300000E-01   0.0            0.0            0.0

Mystran solution:

                                                       D I S P L A C E M E N T S
                                              (in global coordinate system at each grid)
           GRID     COORD      T1            T2            T3            R1            R2            R3
                     SYS
            600        0  0.0           0.0           0.0           0.0           0.0           0.0         
            601        0  0.0           0.0           0.0           0.0           0.0           0.0         
            700        0  1.500000E-01  3.333333E-02  1.583333E-01  0.0           0.0           0.0         

Input deck:
rbe3_series_04_partial_dependent_components.bdf.txt