Erik Kostson
Ansys Employee
nI think that you are correct.nnSee this though for a general description of a what a frequency response function (frf) is frf (vibrationdata.com)nnAlso our course are very good and describe a lot of things related to dynamics:nMode Superposition Method | Ansys Innovation CoursesnHarmonic Analysis of Structures - ANSYS Innovation CoursesnnThank younnErikn