Triple-wave ensembles in a thin cylindrical shell

5 Ginsberg JM (1974) , Dynamic stability of transverse waves in circular cylindrical shell, Trans.Triple-wave resonant ensembles.NBThe resonant interactions of -type are inherent in cylindrical shells only.The main idea is to trace the propagation of a quasi-harmonic signal - is the wave stable or not?Generally, such instability is associated with the degenerated four-wave resonant interactions.NBThe wave modes entering -type triads can propagate in the same spatial direction.From the theoretical viewpoint this phenomenon can be treated within several independent scenarios.The wave pulse at frequency of 1120 Hz was generated.1 Bretherton FP (1964) , Resonant interactions between waves, J. Fluid Mech., 20, 457-472.High-frequency bending and two low-frequency bending waves () .