11.2.3. Supported Elements
The input file format of Sunshine is the same as Nastran input file format. The following table is the supporting elements list for RFlexGen function.
Type |
Sunshine elements for Nastran input file format |
|---|---|
1DElement |
CBAR, CBEAM, CONROD, CROD |
2DElement |
CTRIA3, CQUAD4 |
3DElement |
CTETRA, CPENTA, CHEXA, CPYRAM(Only 5 node) |
RigidElement |
RBE2, RBE3, CELAS1, CELAS2, CBUSH1D |
MassElement |
CONM1, CONM2 |
Type |
RD FFlex element |
Converted Sunshine elements in order to generate RFI |
|---|---|---|
1D Element |
BEAM2 |
CBEAM |
2D Element |
Shell3 |
CTRIA3 |
Shell4 |
CQUAD4 |
|
Shell9 |
CQUAD4 |
|
3D Element |
Solid4 |
CTETRA |
Solid5 |
CPYRAM |
|
Solid6 |
CPENTA |
|
Solid8 |
CHEXA |
|
Solid10 |
CTETRA |
|
Solid26 |
CHEXA (20-node) |
|
Rigid Element |
Rigid element |
RBE2 |
Interpolation element |
RBE3 |
|
Mass Element |
Mass element |
CONM2 |
Note
In the case of solid elements, the Eigen analysis results shows very good agreement with the Nastran results. But, in the case of shell elements, the Eigen analysis results can be little different from the Nastran results.
If the shell type element (CTRIA3 or CQUAD4) is used and some result related the normal rotation stiffness is different. Please check and set a specific value to Shell Drilling Stiffness on option dialog of RFlexGen.