Abaqus Keywords Reference Guide  
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*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.

Product: Abaqus/Aqua  

Type: History data

Level: Step

Reference:
There are no parameters associated with this option.

Data lines to define distributed fluid added mass: 

First line:

  1. Element number or element set label.

  2. Distributed load type label FI.

  3. Effective outer diameter of the member.

  4. Transverse added-mass coefficient, .

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:

  1. Element number or element set label.

  2. Distributed load type label FI1 or FI2.

  3. Added mass coefficient, .

  4. Structural acceleration shape factor, .

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