COUPLER
Bulk Data Entry Defines a coupler connecting two or three joints.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| COUPLER | COID | JID1 | TYPE1 | RATIO1 | JID2 | TYPE2 | RATIO2 | ||
| JID3 | TYPE3 | RATIO3 |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| COUPLER | 3 | 1 | T | 2.0 | 4 | R | 1.0 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| COID | Unique coupler
identification number. (Integer > 0) |
|
| JIDi | Joint identification
numbers. No default (Integer > 0) |
|
| TYPEi | Type. 3
No default |
|
| RATIOi | Coefficients of the
coupler constraint equation. Default = 1.0 (Real) |
Comments
- COUPLERs are only valid in a multibody solution sequence.
- At least JID1 and JID2 need to be defined.
- The type is optional, if the Joint is revolute or translation; but if the joint is cylindrical, the type should be set to TRA to denote that the translational motion is coupled or ROT to specify that the rotational motion is coupled.