MOTNJE
Bulk Data Entry Defines a joint motion through an expression.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MOTNJE | SID | JID | MTYPE | EID | DTYPE | D0 | V0 |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MOTNJE | 3 | 345 | 3 | 1 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| SID | Load set
identification number. (Integer > 0) |
|
| JID | Joint identification
number. (Integer > 0) |
|
| MTYPE | TRANS or ROT, ignored for revolute and translational joints. | |
| EID | Expression
identification number of the MBVAR entry that gives the
motion versus time. If blank or zero, a constant motion of
D is applied. Default = constant motion D (Integer ≥ 0 or blank) |
|
| DTYPE | Motion data type.
|
|
| D0 | Initial displacement, if motion data is of type velocity or acceleration, ignored otherwise. | |
| V0 | Initial velocity, if motion data type is acceleration, ignored otherwise. |
Comments
- Joint motion can only be applied to cylindrical joints (MTYPE = TRANS or ROT), revolute joints (MTYPE = ROT), and translational joints (MTYPE = TRANS).
- The MOTNJE Bulk Data Entry should be selected in the MOTION Subcase Information section, if it is to be included in the analysis.