Substructure damping

This problem contains basic test cases for one or more Abaqus elements and features.

This page discusses:

Elements tested
Features tested
Problem description
Results and discussion
Input files

ProductsAbaqus/Standard

Elements tested

T3D2

Features tested

Damping of substructures.

Problem description

The model consists of two substructures, each generated from truss elements of type T3D2. The model is oriented along the x-axis and is constrained at one end in all degrees of freedom. It is free to move only in the x-direction at its other end. In each case the truss is displaced by 25.4 mm (1 in) at its free end in an initial static step. It is then released in the direct-integration implicit dynamic (or modal dynamic) step, and the displacement response history is saved on a file for postprocessing.

Results and discussion

The results from the substructure analysis exactly match the results that are obtained when substructures are not used.

Input files

psupdmp1.inp: Material damping at substructure generation level.
psupdmp1_gen1.inp: Substructure generation file referenced in the analysis psupdmp1.inp.
psupdmp2.inp: Modal damping at the global level.
psupdmp2_gen1.inp: Substructure generation file referenced in the analysis psupdmp2.inp.
psupdmp3.inp: Material damping at generation level is overridden at the global level.
psupdmp3_gen1.inp: Substructure generation file referenced in the analysis psupdmp3.inp.