Simcenter Femap Applying an enforced displacement load in Femap
2023-08-01T17:09:00.000-0400
Femap
Summary
Applying an enforced displacement load in Femap. Enforced displacement can be defined two different ways. Defined as a load (SPCD) or as a constraint (SPC).
Details
Enforced displacement can be defined two different ways. Defined as a load (SPCD) or as a constraint (SPC).
Define Displacement load
If you attempt to solve the solution, it will solve with no enforced load.
Femap will list this error to the message window
Node 12, DOF 1 is not constrained but has Enforced Displacement applied.
Node 13, DOF 1 is not constrained but has Enforced Displacement applied.
Nastran F06 file
The DOF that has enforced displacement must also have a constraint in that DOF applied.
Constrain the displacement node. This constraint must be in the active constraint set.
This will write a SPCD to the NASTRAN input file (Image below from Nastran Quick Reference Guide QRG)
Select NonZero Constraint
Define an enforced displacement value
This will write a SPC to the NASTRAN input file (Image below from Nastran Quick Reference Guide QRG)
Loads Method
Create a new load SetDefine Displacement load
If you attempt to solve the solution, it will solve with no enforced load.
Femap will list this error to the message window
Node 12, DOF 1 is not constrained but has Enforced Displacement applied.
Node 13, DOF 1 is not constrained but has Enforced Displacement applied.
Nastran F06 file
The DOF that has enforced displacement must also have a constraint in that DOF applied.
Constrain the displacement node. This constraint must be in the active constraint set.
This will write a SPCD to the NASTRAN input file (Image below from Nastran Quick Reference Guide QRG)
Constraints Method
Create a constraint on node to be enforced.Select NonZero Constraint
Define an enforced displacement value
This will write a SPC to the NASTRAN input file (Image below from Nastran Quick Reference Guide QRG)