Test techniques were evaluated to determine the best test to study methods for measuring the complete driving point frequency response function characteristics of forces and moments. It was found that impulse testing has consistency problems with input magnitudes and gives poor damping estimates. Chirp testing has excellent signal-to-noise ratios and the best coherence, but in the test case it exhibited a shift in the third natural frequency. Stinger testing showed measurement complications for the test structure's highest natural frequency. It is concluded that a better test method is required to achieve the quality of data required.
|Number of pages||1|
|Journal||Shock and Vibration Digest|
|Publication status||Published - Jan 2000|
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes