*INERBODY

Data format:

An arbitrary number of lines comprising 4 values.

NODE ROW COL INERTIA IOACC |

Status :

Optional

Purpose :

To define linear inertia forces and moments applied to a node based on its local axes system.

Restriction :

A NODE must have been previously defined.

Details :

Parameter	Description
NODE	Node to which the inertia matrix is applied.
ROW	Row identification of the matrix
COL	Column identification of the matrix
INERTIA	Inertia value are stored in (ROW,COL). Units of the D(6x6) inertia matrix terms are as follows: Aij with i=1,3; j=1,3 : kg Aij with i=1,3; j=4,6 : kg.m/rad Aij with i=4,6; j=1,3 : kg.m Aij with i=4,6; j=4,6 : kg.m2/rad
IOACC	By default the inertia force/moment is computed based on the acceleration of the structure. A second option is available. IOACC= 0 (Default) : acceleration of the structure is used IOACC = 1 : the translational acceleration is based on acceleration of the structure minus wave particle acceleration (rotational acceleration unchanged)

Note

if ROW is not equal to COL, the value is entered at both (ROW,COL) and (COL,ROW) since the matrix is symmetric.