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 vs. time. If blank or zero, a constant motion of D is applied.

Default = constant motion D (Integer ≥ 0 or blank)

  
DTYPE Motion data type.
DIS
VEL
ACC
blank
Means displacement motion.
  
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

  1. Joint motion can only be applied to cylindrical joints (MTYPE = TRANS or ROT), revolute joints (MTYPE = ROT), and translational joints (MTYPE = TRANS).
  2. The MOTNJE Bulk Data Entry should be selected in the MOTION Subcase Information section, if it is to be included in the analysis.