Modified Lindstedt-Poincare method for a strongly non-linear two degree-of-freedom system

被引:39
|
作者
Chen, SH [1 ]
Cheung, YK [1 ]
机构
[1] UNIV HONG KONG,DEPT CIVIL & STRUCT ENGN,HONG KONG,HONG KONG
关键词
D O I
10.1006/jsvi.1996.0313
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A modified Lindstedt-Poincare (L-P) method for extending the validity of perturbation expansions to strongly non-linear oscillations of two-degree-of-freedom (DOF) systems is presented. A parameter transformation alpha = alpha(epsilon, omega(0), omega(1)) is adopted such that a strongly non-linear system with a large parameter epsilon is transformed into a small parameter system with respect to alpha: A typical cubic non-linear system in the form of a clamped-hinged beam is used to show its essential features. Three examples are presented to show the efficiency and the advantages of this method. (C) 1996 Academic Press Limited
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页码:751 / 762
页数:12
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