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*C ADDED MASS
Specify concentrated added mass in a *FREQUENCY step.

This option is used to include the “added mass” contributions due to concentrated 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 concentrated fluid added mass: 

First line:

  1. Node number or node set label.

  2. Load type label TSI.

  3. Tangential added-mass coefficient, .

  4. Structural acceleration shape factor for the tangential inertia term,

Second line:

  1. X-direction cosine of the outward normal to the exposed transition section area, pointing into the fluid, in the initial configuration.

  2. Y-direction cosine of the outward normal to the exposed transition section area, pointing into the fluid, in the initial configuration.

  3. Z-direction cosine of the outward normal to the exposed transition section area, pointing into the fluid, in the initial configuration.

Repeat this pair of data lines as often as necessary to define concentrated fluid added mass at various nodes or node sets.