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  Sheldon Imaoka (ANSYS, Inc.)
  Simple Workbench Mechanical 13.0 example of a ultrasonic wire bonding tool. The piezoelectric stacks are prestressed with a bolt and driven at a given frequency (in this case, resonance is around 59 kHz). Project includes prestressed modal and prestressed harmonic response analyses.

To run this analysis, be sure to set the environment variable WB OLD PRESTRESS first since piezoelectric elements are not supported with the newer PERTURB method.
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