Experimental study of the vibrations of a composite cylindrical shell with a filler subject to two-frequency excitation

Experimental results on the nonlinear dynamic deformation of the elastic wall of a glassfiber-reinforced plastic cylindrical shell (either “dry” or filled) during beating caused by kinematic two-frequency loading are discussed. It is revealed that the nonlinear deformation of a shell undergoing beating, especially at the two close frequencies of the modes n = 3 and n = 5, can be accompanied by the alteration of amplitude and deformation mode between one mode n = 3 and combined mode (n = 3) + (n = 5) and the alternation of one mode n = 3 between a traveling wave and a standing wave. © 2015 Springer Science+Business Media New York.