A full harmonic analysis is performed from 1000 to 2000 Hz in 10 Hz increments. The acoustic load is step-applied (that is, with a constant unit velocity value across the range of frequency).

The following input sets up the analysis:

antype,harm
harfrq,1000.,2000.
hropt,full
kbc,1
nsubst,100

The sparse direct solver is used for this problem.