MOTNGC



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Bulk Data Entry

MOTNGC – Grid Point Motion vs. Time Curve for Multi-body Solution Sequence

Description

Defines a grid point motion vs. time by specifying a curve.

Format

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

MOTNGC

SID

G1

C1

G2

CVID

INT

EID

 

 

 

D0

V0

 

 

 

 

 

 

 

Example

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

MOTNGC

3

345

3

 

1

AKIMA

2

 

 

 

Field

Contents

SID

Load set identification number.

(Integer > 0)

G1

Grid point identification number.

(Integer > 0)

C1

Component number (Integer 1 through 18). The component refers to the coordinate system referenced by the grid point G1.

G2

Grid point identification number to define relative motion.

(Integer > 0 or blank)

CVID

Set identification number of the MBCRV entry that gives the motion vs. time.

(Integer > 0)

INT

Interpolation type (Character: LINEAR, CUBIC, AKIMA).

(Default = AKIMA)

EID

Set identification number of the MBVAR for the independent variable expression.

(Integer > 0 or blank; Default = TIME)

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. If G1 and G2 are defined, the motion is a relative motion between the two grid points; if G2 is blank, absolute motion of G1 is defined.

  2. The component numbers 1, 2, 3 belong to the three displacement directions; 4, 5, 6 to the three rotations; 7, 8, 9 to the three translational velocities; and 10, 11, 12 to the three angular velocities.

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