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The Periodic Solutions and Its Stability of the 2nd Order Parametric Systems under External Excitation
Li Li, Yuan Lihong
(Beijing Polytechnic University, Beijing 100022£©

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Abstract: In this paper a new method is suggested. By using this method not only the periodic solutions of the 2nd order parametric systems under external excitation can be solved, but the stability of these periodic solutions can also be decided.
Keywords: parametric system, periodic solution, stability.