Harmonic Response

The Harmonic Response system determines the steady-state response of a linear structure to loads and excitations that vary sinusoidally (harmonically) with time.

Use this system to verify whether or not your designs successfully overcome resonance, fatigue, and other harmful effects of forced vibrations. This analysis technique calculates only the steady-state, forced vibrations of a structure, typically at a number of discrete points within a range of frequencies. The transient vibrations, which occur at the beginning of the excitation, are not accounted for in a harmonic response analysis.

This system is configured in Ansys Mechanical, using the Ansys solver to compute the solution.

To work through a Harmonic Response system:

  1. To add a Harmonic Response analysis system, drag the system from the Toolbox to the Project Schematic or double-click the system in the Toolbox.

  2. To load the geometry, right-click the Geometry cell and select Import Geometry from the context menu.

  3. To view the geometry, right-click the Model cell and select Edit from the context menu or double-click the Model cell.

    Alternatively, you can complete this step using the Setup cell.

  4. In the Mechanical application window, complete your analysis using the application's tools and features.

    A mode-superposition harmonic analysis automatically runs the modal portion of the solution and cannot transfer data from a separate modal system in the Project Schematic.

    See Harmonic Response Analysis in the Mechanical User's Guide for more information on conducting this analysis.