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On the existence and stability of periodic orbits in non ideal problems: General results

机译:关于非理想问题中周期轨道的存在和稳定性:一般结果

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摘要

In this work, motivated by non-ideal mechanical systems, we investigate the following O.D.E. x˙ = f (x) + "g (x, t) + "2bg (x, t, "), where x ∈ - Rn, g, bg are T periodic functions of t and there is a0 ∈ - such that f (a0) = 0 and f′ (a0) is a nilpotent matrix. When n = 3 and f (x) = (0, q (x3) , 0) we get results on existence and stability of periodic orbits. We apply these results in a non ideal mechanical system: the Centrifugal Vibrator. We make a stability analysis of this dynamical system and get a characterization of the Sommerfeld Effect as a bifurcation of periodic orbits.
机译:在这项工作中,受非理想机械系统的激励,我们研究了以下O.D.E. x˙= f(x)+“ g(x,t)+” 2bg(x,t,“),其中x∈-Rn,g,bg是t的T周期函数,并且有a0∈-使得f (a0)= 0且f'(a0)是一个幂等矩阵,当n = 3且f(x)=(0,q(x3),0)时,我们得到关于周期轨道的存在性和稳定性的结果。结果导致了一个非理想的机械系统:离心振动器,我们对该动力学系统进行了稳定性分析,并将索默费尔德效应表征为周期轨道的分岔。

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