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在一对具有直接间接合的VDP振荡器中生成随机混合模式振荡
1School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China.
Mathematical biosciences and engineering : MBE
|February 2, 2024
概括
环境噪音导致范德波尔振荡器在稳定状态之间过渡. 噪声强度的增加导致连续切换和随机混合模式振荡,通过模拟证实.
科学领域:
- 非线性动力学和随机系统分析.
背景情况:
- 环境噪音可以在非线性系统中诱导复杂的行为.
- 该研究侧重于合的范德波尔 (VDP) 振荡器,这是一个基本的非线性系统.
研究的目的:
- 在合的VDP振荡器中研究噪声诱导的平衡过渡.
- 分析高斯白噪声对系统动态的影响.
- 描述随机混合模式振荡的特征.
主要方法:
- 用于VDP振荡器的直接间接合.
- 应用高斯白噪声作为环境扰乱.
- 采用随机灵敏度方程和信心圆方法进行分析.
主要成果:
- 在特定参数区域观察到噪音诱导的平衡过渡振荡.
- 发现增加噪声强度会导致稳定的平衡点之间持续切换.
- 当置信圆跨越吸引盆地边界时,确定了随机混合模式振荡.
结论:
- 环境噪声显著改变了合VDP振荡器的动态.
- 该系统表现出复杂的随机行为,包括平衡过渡和混合模式振荡.
- 随机分析方法准确地预测观察到的系统响应.
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