Wang Yaxing, Wu Liqun, Zhang Linan, Wang Hongcheng, Wu Guanwu, Wu Jiaxin
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China.
Sci Rep. 2024 Oct 8;14(1):23391. doi: 10.1038/s41598-024-74905-4.
This research delves into the dynamic behavior of acoustic levitation of the particle chain in a nonlinear standing wave field. Experimental acoustic levitation control tests reveal bifurcation and jump phenomena during dynamic adjustments to resonant cavity height. Employing the 10-particle chain experiments and the COMSOL simulation models, the Sine-Gordon 2D vibration model is established to study the dynamic deformation process of the particle chain. The study uncovers the nonlinear interaction of particle lateral vibrations, horizontal acoustic radiation force, and conical wave fields that generate the jumping standing wave field. Notably, the fourth particle acts as a prominent jumping critical point in the secondary standing wave field, facilitating the derivation of the particle chain's nonlinear levitation dynamics. This discovery provides us with a new method to regulate the particle chain system.
本研究深入探讨了非线性驻波场中粒子链的声悬浮动力学行为。实验性声悬浮控制测试揭示了在对共振腔高度进行动态调整期间的分岔和跳跃现象。通过10粒子链实验和COMSOL模拟模型，建立了正弦-戈登二维振动模型以研究粒子链的动态变形过程。该研究揭示了粒子横向振动、水平声辐射力和产生跳跃驻波场的锥形波场之间的非线性相互作用。值得注意的是，第四个粒子在次级驻波场中作为一个显著的跳跃临界点，有助于推导粒子链的非线性悬浮动力学。这一发现为我们提供了一种调节粒子链系统的新方法。
