Damper Properties
Damper elements are only considered in the explicit nonlinear solver. Including damper elements in a modal dynamic analysis gives rise to a completely different problem with complex results. This is not considered in GSA. Dampers follow the same local axis definition as beam, but the exceptions are zero length dampers and nodal dampers. For zero length dampers the local axis is the constraint axis or the first node and for nodal dampers it is the constraint axis of the node