摘要
本文研究了两类非线性系统,首先对第一个系统作变换,使其约化为熟知的广义Li啨nard系统.然后,利用构造的一个广义旋转向量场得到另一系统的周期解的存在条件.
In this paper, two nonlinear systems are investigated. First, one system is transformed to a well- known Lienard system. Moreover, the generalized rotated vector field, constructed in the present paper, is used for obtaining the existence condition of period solutions for another system.
出处
《泰山学院学报》
2005年第6期30-32,共3页
Journal of Taishan University
关键词
非线性系统
旋转向量场
周期解
nonlinear system
rotated vector field
period solutions
