A steady-state dynamic analysis provides the steady-state amplitude and phase of the response of a system due to harmonic excitation at a given frequency. The analysis is performed as a frequency sweep by applying the loading at a series of different frequencies and recording the response. You can create a harmonic response step with several interval types. A frequency increment interval type subdivides the frequency ranges using a regular interval size. An eigenfrequency interval type subdivides the frequency ranges using the system's eigenfrequencies. A direct range interval type specifies the frequency ranges directly in lines in the data table. A frequency spread interval type defines frequency points around eigenfrequencies found in the frequency ranges specified in each line of the data table. | ||||||