External Finite Element Method (FEM) Acoustics NVH (Noise Vibration Harshness) Mesh Workflow

The External FEM Acoustic Mesh Workflow in Ansys 2024R2 offers a structured, wrapper-based approach for NVH simulations. It simplifies meshing through automated steps like hole filling, wrapping, enclosure creation, and PML region extrusion. You can define frequency-based mesh sizes, assign materials, and merge regions efficiently. The workflow reduces manual effort, improves accuracy, and integrates seamlessly with Ansys Mechanical™ structural finite element analysis software.

Learning Outcomes:

Following Completion of this course you will be able to:

• Understand the NVH (Noise Vibration Harshness) context and the role of External FEM Acoustics in simulation workflows.
• Navigate the Mesh Workflow interface in Ansys Mechanical software and access the External FEM Acoustic workflow.
• Create and improve surface and volume meshes
• Define enclosures and extruding acoustic/PML regions
• Merge regions and assigning material properties
• Transfer the final mesh to Ansys Mechanical software for simulation setup.
• Evaluate the benefits of the new workflow over traditional methods in terms of time, accuracy, and usability.

Please note: These training materials were developed and tested in the 2024R2 release.