*D ADDED MASS

Specify distributed added mass in a FREQUENCY step.

This option is used to include the “added mass” contributions due to distributed fluid inertia loads in a FREQUENCY step.

This page discusses:

There are no parameters associated with this option.
Data lines to define distributed fluid added mass
Data lines to define concentrated fluid added mass

See Also

In Other Guides

Abaqus/Aqua Analysis

ProductsAbaqus/Aqua

TypeHistory data

LevelStep

There are no parameters associated with this option.

Data lines to define distributed fluid added mass

First line

Element number or element set label.
Distributed load type label FI.
Effective outer diameter of the member.
Transverse added-mass coefficient, $C_{A}$ .

Repeat this data line as often as necessary to define distributed fluid added mass at various elements or element sets.

Data lines to define concentrated fluid added mass

First line

Element number or element set label.
Distributed load type label FI1 or FI2.
Added mass coefficient, $L_{t s}$ .
Structural acceleration shape factor, $F_{2 s}$ .

Repeat this data line as often as necessary to define concentrated fluid added mass at various elements or element sets.