A.O..A. Technical Memorandum No.511 Pigs.14,14a,14b & 15 To Fig.14a"a {To Fig.14b 1000 a Center of rotation. b Resonance of torsional vibration. c Reference axis for the inertia moments of the torsional vibrations. Fig,14 Different kinds of fuselage vibrations in terms of the frequency for the… … Fig.14a Fig.14b Eccentric disengaged Fig.15 Record of coupled torsional bending vibrations.
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