Journal
MATHEMATICS
Volume 11, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/math11143159
Keywords
nonlinear dynamics; perturbation methods; dynamical system; periodic solutions of rigid bodies; satellite motions; navigation
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This paper focuses on modifying the large parameter approach for estimating the periodic solutions of two degrees-of-freedom quasi-linear systems with a first integral, and compares it with previous approaches.
This paper focuses on the modification of the large parameter approach (LPA), a novelty procedure, for estimating the periodic solutions of two degrees-of-freedom (DOF) autonomous quasi-linear systems with a first integral. This strategy is crucial because it provides an effective approach to recognizing approximate solutions to problems for which it is impossible to obtain exact solutions. These problems arise in the fields of physics, engineering, aerospace, and astronomy. They can be solved analytically using several perturbation approaches that depend on a small parameter that can be recognized according to the initial conditions and the body parameters of each problem. Therefore, we propose a large parameter instead of a small one to solve the aforementioned 2DOF systems, as well as provide a comparison between the suggested procedure and the previous approaches.
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