Card 9 - ROTATION Rotation Load Definition

This optional card specifies the parameters and options for defining rotation loads.

Parameters: KODE, N1, T1, T2, T3

KODE

KODE is the code ROTATION (or 89)

N1

N1 is the ROTATION card ID. Cards with the same ID reference the same rotation load definition.

T1 = ANGULAR_RATE

T1 = ANGULAR_RATE (or 4) specifies the rotation angular rate.

  • If the angular rate is constant, then its value is specified in T2.
  • If the angular rate is table dependent, then T2 is a table multiplier and T3 has the form Tn, for example, T25 where n is a table number referencing the TABTYPE and TABDATA cards. The dependent variable on the TABTYPE card must be ROTATION, and the independent variable is TIME.

T1 = AXIS

T1 = AXIS (or 3) specifies the axis of rotation represented by a Card 9 VECTOR card. The ID of the referenced VECTOR card is specified in T2.

T1 = SELECTION

T1 = SELECTION (or 2) specifies that the rotation load is applied to the elements of group T2.

T1 = TYPE

T1 = TYPE (or 1) specifies the type of rotation load in T2.

  • T2 = GLOBAL the rotation load is applied to all elements.
  • T2 = LOCAL the rotation load is applied to a selection subset of elements.

Code example

$ -------------
$ Rotation Load
$ -------------
ROTATION 2 TYPE GLOBAL
ROTATION 2 AXIS 1
ROTATION 2 ANGULAR_RATE  5.729578E+04
VECTOR 1  0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00  1.000000E+00