Ground vibration testing
Just as almost any mechanical structure, aircraft body parts or complete aircrafts can be modelled precisely and realistically in FEM software. This provides a vital means of understanding whether the design of an aircraft fulfils the requirements needed for a safe and long operation. Not only static strength or fatigue behavior is important in this regard, but also Eigen frequencies and the reactions to the various vibration sources that the structure is subjected to, during its operation.
The full white paper is available as a PDF in the column on the right under "Downloads".