04.2 - Aerostructures Design, Structural Dynamics, Aeroelasticity
A SUBJECTIVE EVALUATION METHOD OF AIRCRAFT VIBRATION IN FLIGHT TEST
H. Wang, COMAC Flight test Center, China
In flight test aircraft vibration occurs due to test maneuver, test environment and aircraft configuration during development. Each abnormal vibration event needed to be evaluated before next flight to ensure flight safety. There two kinds of data may contribute to vibration evaluation, one is the data from instrumentation such as acceleremeter, strain gauges etc, however they are not always available due to limited test resources. The other data is the test crews’ comments to the vibration phenomenon. In this study a 10 points scale method with coverage of all possible affect of vibration including safety, crew activates and comfort was devolved following Cooper-Harper handling qualities rating format. By the standardize method crew subjective feeling or comments to the vibration events were derived to more useful quantitatively information to aid decision making during flight test.