Douglas Aircraft Company experience in flight flutter testing is reviewed briefly, with comments on state-of-the-art excitation and instrumentation techniques used up to the present time. The limitations of previous techniques are discussed with emphasis on the problem of: (1) establishing a flutter margin of safety for predicted marginal flutter modes; (2) resolving instances of flutter not predicted by theoretical calculations in advance; and (3) delaying the airplane demonstration by time consumed in acquisition and reduction of flutter data. Current Douglas philosophy in flight flutter testing is presented and a description given of steady-state vane excitation system development, automatic data handling system, and the potential application of automatic computing methods for increasing flutter data yield.
Douglas Experience in Flight Flutter Testing
01.01.1975
Aufsatz (Konferenz)
Keine Angabe
Englisch
NTIS | 1992
|AIAA | 1975
|Flight Flutter Testing Symposium
NTRS | 1975
NTIS | 1963
|Flight Flutter Testing Symposium
NTIS | 1975