在多稳定机械网络中的驱动器特定选择
Hridesh Kedia1, Deng Pan1, Jean-Jacques Slotine2
1Physics of Living Systems Group, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
The Journal of chemical physics
|December 4, 2023
概括
驱动系统可以通过最小化能量吸收来选择特定的稳定状态. 这种驱动器特定的选择是当系统完成时实现的.
科学领域:
- 复杂的系统复杂的系统.
- 非线性动力学是一种非线性动力学.
- 统计力学 统计力学
背景情况:
- 自然界的多稳定系统表现出由能量景观所支配的多样性行为.
- 外部驱动器可以显著改变不平衡系统中的配置稳定性.
- 生物系统表现出依赖能量流动模式的超稳定不平衡吸引力.
研究的目的:
- 研究不平衡动态中的驱动特定选择.
- 探索外部强迫模式如何影响多稳定系统中的吸引力状态.
- 了解能量吸收最小化背后的物理机制.
主要方法:
- 数字研究驱动的可二位弹的无序机械网络.
- 分析了由可比化元素产生的许多稳定配置的系统.
- 研究了强迫幅度,模式和能量吸收之间的关系.
主要成果:
- 确定了一系列强迫幅度,使吸引力状态的能量吸收率低.
- 发现吸引力状态对外部强迫模式进行了微调.
- 通过将轨道形状与潜在能量井形状相匹配,观察到稳定.
结论:
- 驱动器特定选择是驱动式多稳定系统中普遍存在的现象.
- 系统动态和外部驱动器之间的精确匹配对于稳定性至关重要.
- 展示了实验证据,并提出了一种估计选择范围的方法.
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