Chen Shuai, Wang Yilong, Wu Qianjing, Han Hesheng, Cao Dengqing, Wang Biao
School of Astronautics, Harbin Institute of Technology, Harbin, China.
School of Advanced Manufacturing, Sun Yat-sen University, Shenzhen, China.
Commun Eng. 2025 Aug 8;4(1):147. doi: 10.1038/s44172-025-00486-3.
Vibration isolation systems frequently face challenges in varying environments due to their inherent resonance effects and responsive delays. Here, we report an intelligent excitation-adaptative vibration isolation (IEA-VI) architecture that mimics the biological adaptive mechanism of human muscle, enabling real-time stiffness adjustment to mitigate variable environmental impacts through sensing, processing, and controlling modules. The IEA-VI system operates in high-static-low-dynamic-stiffness and high-dynamic-stiffness modes, capable of intelligent on-demand mode switching. We develop a real-time frequency perception algorithm to quickly perceive excitation frequencies, enabling the system to perform rapid mode-switching and thus achieve real-time full-spectrum vibration control. We design and fabricate a proof-of-concept IEA-VI system and theoretically and experimentally demonstrate that the system's frequency perception is approximately 10 times faster than that achieved with the commonly used Fast Fourier Transform at low frequencies. Meanwhile, the system effectively mitigates resonance and delivers high-performance vibration isolation through intelligent real-time mode switching.
由于其固有的共振效应和响应延迟，隔振系统在不同环境中经常面临挑战。在此，我们报告一种智能激励自适应隔振（IEA-VI）架构，它模仿人类肌肉的生物自适应机制，通过传感、处理和控制模块实现实时刚度调整，以减轻可变环境影响。IEA-VI系统在高静态-低动态刚度和高动态刚度模式下运行，能够进行智能按需模式切换。我们开发了一种实时频率感知算法，以快速感知激励频率，使系统能够执行快速模式切换，从而实现实时全频谱振动控制。我们设计并制造了一个概念验证的IEA-VI系统，并通过理论和实验证明，该系统在低频时的频率感知比常用的快速傅里叶变换快约10倍。同时，该系统通过智能实时模式切换有效减轻共振并提供高性能隔振。
