Rigid Pin-Ended Element Connection
Description: Defines a pin-ended element that is rigid in translation.
Format:
Example:
| Field | Definition | Type | Default |
|---|---|---|---|
| EID | Element identification number. | Integer > 0 | Required |
| GA, GB | Grid point identification number of connection points. | Integer > 0 | Required |
| CMA, CMB | Component number of one and only one dependent translational degree of freedom in the global coordinate system assigned by the user to either GA or GB. | 1 ≤ Integer ≤ 3 | Either CMA or CMB has a single value, the other must be blank |
Remarks:
- A dependent degree of freedom assigned by one element cannot be assigned dependent by another rigid element or MPC entry and cannot be additionally constrained (e.g., single-point constraint).
- Degrees of freedom declared to be independent by one rigid body element can be made dependent by another rigid body element or by a multipoint constraint.
- Rigid elements, unlike MPCs, are not selected through the Case Control Section.
- Forces of multipoint constraint may be recovered with the MPCFORCES Case Control command.