JOINTM

Bulk Data Entry Defines a joint using two grids which have a marker card associated with them. Joints are only valid in a multibody solution sequence.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
JOINTM JID JTYPE M1 M2          

Example 1

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
JOINTM 3 BALL 345 231          

Example 2

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
JOINTM 4 UNIV 456 899          

Definitions

Field Contents SI Unit Example
JID Unique joint identification number.

(Integer > 0)

  
JTYPE Joint type. 1
BALL
Ball
FIX
Fix
REV
Revolute
TRANS
Translational
CYL
Cylindrical
UNIV
Universal
CV
Constant Velocity
PLANAR
Planar
INLINE
Inline
PERP
Perpendicular
PARA
Parallel Axes
INPLANE
Inplane
ORIENT
Orient
  
M1, M2 Marker identification numbers. M1 and M2 must belong to different bodies and must have a marker card associated with them.

(Integer > 0)

  

Comments

  1. Definition of the different joint types:
    JTYPE Definition Joint Orientation
    BALL M1, M2 M1, M2 must coincide.
    FIX M1, M2 M1, M2 must coincide.
    REV M1, M2 M1, M2 must coincide.

    The joint axis will be along the Z-axis of marker M1.
    TRANS M1, M2 M1, M2 must be along the joint axis.

    The joint axis will be along the Z-axis of marker M1.
    CYL M1, M2 M1, M2 must be along the joint axis.
    UNIV M1, M2 M1, M2 must coincide.
    CV M1, M2 M1, M2 must coincide.
    PLANAR M1, M2 M1, M2 must be in the joint plane.
    INLINE M1, M2  
    PERP M1, M2  
    PARA M1, M2  
    INPLANE M1, M2  
    ORIENT M1, M2 No relative rotation.