Gear Noise Simulation in Ansys Mechanical

How can a gear noise simulation be conducted in Ansys Mechanical given new Acoustics module? 

This tidbit provides a step-by-step guide on how to conduct a gear noise simulation in Ansys Mechanical using the new Acoustics module. The simulation process involves a three-step procedure starting with a transient structural analysis of the gear, followed by exporting the results as a text file, and finally setting up an Acoustic Harmonic FE Model. The example given focuses on the sound radiated by a single time step; however, it also provides notes to guide a more comprehensive analysis based on the physics of the actual gear box structure.

Refer the document and simulation model below. 

Simulation Model