Abstract
This paper presents a new method for global analysis of nonlinear system. By means of transforming the nonlinear dynamic problems into point mapping forms which are single-valued and continuous, the state space can be regularly divided into a certain number of finitely small triangle elements on which the non-linear mapping can be approximately substituted by the linear mapping given by definition. Hence, the large range distributed problem of the mapping fixed points will be simplified as a process for solving a set of linear equations. Still further, the exact position of the fixed points can be found by the iterative technique. It is convenient to judge the stability of fixed points and the shrinkage zone in the state space by using the deformation matrix of linear mapping. In this paper, the attractive kernel for the stationary fixed points is defined, which makes great advantage for describing the attractive domains of the fixed points. The new method is more convenient and effective than the cell mapping methodl[1]. And an example for two-dimensional mapping is given.
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Tie-niu, L., Dao-lin, X. Large range analysis for nonlinear dynamic systems —Element mapping method. Appl Math Mech 13, 577–586 (1992). https://doi.org/10.1007/BF02451521
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DOI: https://doi.org/10.1007/BF02451521