FORCE1
Bulk Data Entry Used to define a static force by specification of a value and two grid points that determine the direction.
Attention: Valid for Implicit
and Explicit Analysis
It can also be used to define the EXCITEID field (Amplitude "A") of dynamic loads in RLOAD1, RLOAD2, TLOAD1 and TLOAD2 Bulk Data Entries. Additionally, the FORCE1 entry can be defined as Follower Loads in Large Displacement Nonlinear Analysis.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| FORCE1 | SID | G | F | G1 | G2 |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| FORCE1 | 6 | 13 | -2.93 | 16 | 13 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| SID | Load set identification
number. (Integer > 0) |
|
| G | Grid point identification
number. (Integer > 0) |
|
| F | Value of
force. (Real) |
|
| G1, G2 | Grid point identification
numbers. (Integer > 0; G1 ≠ G2) |
Comments
- The static force applied to grid point
G is:
(1) Where, is a unit vector parallel to a vector from G1 to G2.
- This card is represented as a force load in HyperMesh.