# Requirements

You must use a license of ATILA that includes:
- Elastic elements
- Piezoelectric elements
- Fluid and Radiating elements (only for the second part of the tutorial)
- Harmonic solver
You may not be able to complete this tutorial with the ATILA demo version. Approximately 150MB of disk space is necessary to store the results of this tutorial.

# Getting Started

After starting GiD, launch the ATILA environment by selecting Atila/1.3.1 in the Problemtypes menu.
Remember to frequently save your work.

# Comments or Questions

Submit your comments and questions to the ATILA mailing list:
http://lists.adaptronics.com/mailman/listinfo/atila
Subscribing to the list also allows you to receive important information about updates and developments.

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