Card 9 - ARTICUT Articulation Definition

KODE

KODE is the code ARTICUT (or 49)

N1

N1 is the joint number.

T1

T1 is a group name containing the articulating elements.

T2

T2 is the speed of rotation or translation. If the speed is table-dependent, T2 should be the mnemonic Tn (or the negative number -n), where n is the table number referencing TABTYPE and TABDATA Cards.

T3

T3 is a table multiplier (if T2 is a table), otherwise it is ignored. If T2 is not a table, T3 may be blank.

Code example

 ARTICUT 20 ARTICGRP 5.
 JOINT   20 REVOLUTE 0 10
 VECTOR  10 0. 0. 0. 0. 0. 1.
 $ ELEMENTS IN GROUP ARTICGRP ROTATE AT A SPEED OF 5. DEGREES
 $ PER SECOND ABOUT VECTOR NUMBER 10

Notes

The articulation definition is used with a joint definition card 9 JOINT. The joint number of the articulation card is associated with the same joint number of the joint definition card.

The group of elements refers to the elements of that joint only and not to the child joints. Refer to Card 9 - JOINT Articulation Joint Definition.

If T2 references a table Tn, in which the independent variable is TIME, then the time values listed in Tn are considered additional articulation times.

For articulation requests with time dependent articulation parameters, if no movement occurs between two articulation times, the thermal solver does not compute the radiation request at the new time step but uses the results from the previous time step. You can compute the radiation request at each articulation time step even when no movement occurs using the PARAM ORBRAD option in the Card 9-PARAM.