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arXiv 1606.08993nlin.CD
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非线性变系数振子:稳定性判据和吸引子的捕获概率

Nonlinear argumental oscillators: Stability criterion and attractor's capture probability

Daniel Cintra, Pierre Argoul

摘要:

研究了空间调制的所谓“参数”振荡器的行为,该振荡器由具有偶宇称空间调制函数的模型表示。给出了稳定性判据和离散能级的解析表达式。在(振幅,相位)空间中使用积分因子和Van der Pol表示,给出解的近似隐式封闭形式。从给定的初始条件进入稳定振荡区的概率计算在符号形式。这些结果允许系统的稳定性和分岔的分析方法。它们还允许评估发生持续大幅度振荡的风险,当这种现象是要避免的,并评估的条件适用于获得振荡时,这种现象是必要的。

英文摘要:

The behaviour of a space-modulated, so-called "argumental" oscillator is studied, which is represented by a model having an even-parity space-modulating function. Analytic expressions of a stability criterion and of discrete energy levels are given. Using an integrating factor and a Van der Pol representation in the (amplitude, phase) space, an approximate implicit closed-form of the solution is given. The probability to enter a stable-oscillation regime from given initial conditions is calculated in symbolic form. These results allow an analytic approach to stability and bifurcations of the system. They also allow an assessment of the risk of occurrence of sustained large-amplitude oscillations, when the phenomenon is to be avoided, and an assessment of the conditions to apply to obtain oscillations whenever the phenomenon is desired.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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