Energy transfer in two-degree-of-freedom vibrating systems – a survey

The purpose of this paper is the survey and the analysis of modern literature concerning the problems energy transfer in nonlinear two-degree-of-freedom systems. Particular attention is given to the kinds of nonlinearities taken into account by different authors. It has been found that not all kinds of nonlinearities were widely examined. There are not many works taking into account simultaneously the nonlinearities in form of polynominals coupled with a nonlinearity resulting from existance of pendulum in the system. This type of systems has a wide technical application.