Abstract
One of the crucial concepts in determining the structure of dynamic systems is to recognize the behavior of nonlinear systems, which is one of the current issues in engineering sciences. In general, nonlinear systems exhibit behaviors such as stability, periodic, quasi-periodic and chaotic. Since in nonlinear systems, changing parameters can have a great effect on changing the behavior of nonlinear systems, for this reason, it has been studied how different parameters affect the behavior of a system. Due to the importance of determining the behavior of nonlinear systems, in this chapter, first, various criteria for estimating the behavior of nonlinear systems are discussed and then the effect of these parameters on these systems is examined.