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*MODAL DAMPING

Keyword type: step

This card is used within a step in which the *MODAL DYNAMIC procedure has been selected. It allows for Raleigh damping in a global way, i.e. the damping matrix is taken to be a linear combination of the stiffness matrix and the mass matrix. The coefficients apply to all modes.

First line:

- *MODAL DAMPING

Second line:

- Coefficient of the mass matrix.
- Coefficient of the stiffness matrix.

    Example:

    *MODAL DAMPING
    0.,2.e-4

indicates that the damping matrix is obtained by multiplying the stiffness matrix with

Example files: beamdy3, beamdy4, beamdy5, beamdy6.