A new result about existence of periodic solutions of nonlinear differential equations with double resonance will be given.
给出了带有双侧共振的非线性微分方程周期解存在性的一个新的结果。
2
In this paper, the chaotic motion of a double-pendulum is suppressed efficiently based on the method of periodic force.
本文基于外加周期激振力信号作用首次对双杆摆机构的混沌运动进行了有效的控制。
3
That is, according to the atoms of solid structure have or haven′t periodic arrangement, crystal can be classified to single unit cell crystal and double unit cell crystal.