3D Connexion Version 6.6 Manual

A SERVICE OF

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*

ROTARY INER TIA

In large-displacement analysis (an ABAQUS/Explicit analysis or when the NLGEOM

parameter is included on the

*

STEP option in an ABAQUS/Standard analysis), the local axes of

inertia rotate with the rotation of the node to which the ROTARYI element is atta ched.

Data line to deﬁne the rotar y inertia:

First (and only) line:

1. Rotary inertia about the local 1-axis, .

2. Rotary inertia about the local 2-axis,

.

3. Rotary inertia about the local 3-axis,

.

4. Product of inertia,

.

5. Product of inertia,

.

6. Product of inertia,

.

The rotary inertia should be given in units of ML

2

. ABAQUS does not use any speciﬁc physical

units, so the user’s choice must be consistent.

17.20–2

ABAQUS Version 6.1 Module:

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