4.3. Acoustic Frequency Response

These Frequency Response options enable you to chart Acoustics results and display how the response varies with the frequency. Frequency Response options include the following acoustics-based results:

  • Pressure

  • Directional Velocity

  • Kinetic Energy

  • Potential Energy

  • Sound Pressure Level

  • A-Weighted Sound Pressure Level

You can view these options as a value graphed along a specified frequency range. The plot includes all of the frequency points at which a solution was obtained. When you generate frequency response results, the default plot (Bode) shows the amplitude and phase angle. These Acoustic Frequency Response results are available for Coupled Field Harmonic and Harmonic Acoustics analyses only. The application evaluates the corresponding acoustic quantities using the following equation (Equation (2) of Frequency Response).

Where:

The LS-DYNA Acoustics system supports Frequency Response options for the following acoustics-based results:

  • Pressure

  • Directional Velocity

  • Sound Pressure Level

Results may be scoped to a freestanding remote point.