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Resonance vibrations of aircraft propellers (1932)
NASA Technical Reports Server (NTRS) · leaf 46
I.A.C*A. Tectolcal.Memoraad 657 X sin 0 500 ^ 1000 1500 Jig, 1 Exarnple of torsipual frequencies plotted fig. 2 Diagram against the angalar velocity, for il- lustrating equa^ tions 7 to 10. … Pig. 3 Velocity components Jig. 4 ViTDration-^elastic lines ac- of vilDrating propels cording to equation 18, ler blade.NASA Technical Reports Server (NTRS)
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