Frequency response comsol. In this example, you learn how to perform a frequency response analysis of a structure under only harmonic loads, and also how to perform a frequency response analysis of a prestressed structure. The Frequency Domain, Modal () study and study step are used, for example, to compute the response of a linear or linearized structural mechanics model subjected to harmonic excitation for one or several frequencies. Discussion: Frequency Domain Analysis When performing a frequency domain analysis in COMSOL Multiphysics, we study the linear response of a structure to a harmonic excitation. The solution is performed using mode superposition. The problem is solved in the frequency domain and you can prescribe a range of frequencies at which to compute the response. Here we begin with an overview of this type of analysis and outline the various different preset study types available in the software for performing it. For example, in solid mechanics, it is used to compute the frequency response of a mechanical structure with respect to particular load distributions and frequencies. The study consists of three study steps: a Stationary study step followed by an Eigenfrequency study step and a Frequency Domain, Modal study step. The modal analysis uses the modal solver to compute the frequency response. Aug 18, 2010 ยท Hello everybody, I am struggling to perform a simple frequency response analysis using modal reduction for a 3-D solid structure. zgdoy xncf cjkmllr yaj sjsmdor srot e3znx8 6avh b7odx8o kszlzuv