Mass adjustment

Mass adjustment:

  • is useful to set the net mass of one or more components in the model to a known value;

  • is useful to scale the net mass of one or more components in the model (without the need to know the mass of the component);

  • is useful to account for any errors in mass due to modeling approximations;

  • is useful to account for mass from nonstructural features otherwise omitted from the model, such as paint;

  • can be applied over all element types that have mass;

  • adjusts the mass of the individual elements in an element set in proportion to their pre-adjusted mass including any nonstructural mass, so as to meet the specified target value for the set;

  • can be used to redistribute mass among elements in the set to raise the minimum stable time increment to a target value;

  • can be used to redistribute mass to maximize the stable time increment of the elements in the element set;

  • can be specified only once in an Abaqus/Explicit analysis during the model definition; and

  • can be applied in a hierarchical fashion to adjust the mass for individual parts first and then for an assembly of these parts.

The following topics are discussed:

Related Topics
Nonstructural mass definition
In Other Guides
Density
Point masses
Mass scaling
*MASS ADJUST

ProductsAbaqus/Explicit