Concentrated Mass

A concentrated mass is input by typing “conc” in the Data column or selecting “Conc. Mass” from the Data Types dialog.

The Concentrated Mass dialog is shown.

The weight of the concentrated mass should be input for Weight. Weight is to be input in lbf or kgf and NOT in mass units. Whenever mass is required for a calculation as in the case of forming Mass matrix for dynamic analysis, or in calculating inertia force as (mass x acceleration) for static seismic analysis, CAEPIPE internally computes the mass to be equal to (weight / g-value).

The concentrated mass is located at the offset (DX, DY, DZ) from the node. Deadweight, seismic and dynamic loads due to concentrated masses are applied to the model.