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Abstract：
Based upon the conservation of average energy a theorem about the periodic solutions of strongly nonlinear nonautomous systems with multi-degree-of freedom is proved. This theorem can not only decide the existence and stability of the periodic solutions, but at the same time can also give their first-order and second-order approximate expressions.
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NONLINEAR DYNAMICS
ISSN： 0924-090X
Year： 2006
Issue： 1-2
Volume： 46
Page： 87-111
5 . 6 0 0
JCR@2022
ESI Discipline： ENGINEERING;
JCR Journal Grade：2
Cited Count：
WoS CC Cited Count： 4
SCOPUS Cited Count： 4
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 3
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