Improved Flight Flutter Testing Excitation Techniques

This report results from a contract tasking School of Engineering University of Manchester as follows: The contractor will investigate improvements in excitations signals used in aircraft flutter flight test data collection. It describes the work done during the period 1 April - 30 September 1998 for the EOARD contract F61775-98-WEO12 on Improved Flight Flutter Testing Excitation Techniques. Strategies. A number of improved swept sine (Chirp') and random excitation signals are developed and demonstrated to be superior to conventional linear sweeps and minimum crest factor random signals.