A novel magnet-array quasi-zero stiffness energy-harvesting vibration isolator

IF 4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Acta Mechanica Sinica Pub Date : 2026-08-03 DOI:10.1007/s10409-026-25623-x

Zhaozhao Ma (, ), Yonghua Yu (, ), Ruiping Zhou (, ), Qingchao Yang (, ), Heow Pueh Lee, Kai Chai (, )

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引用次数: 0

Abstract

The vibration issues in various mechanical equipment and architectural structures have gradually developed into two directions: vibration control and vibration utilization. Developing better engineering structures and system models is a crucial step in realizing vibration control and utilization. A novel magnet-array quasi-zero stiffness energy-harvesting vibration isolator (MQZS EVI) is proposed; it mainly consists of three parallel negative stiffness mechanisms (NSMs), three series-connected electromagnetic shunt damping, and three parallel spring positive stiffness mechanisms. Firstly, the magnetic force analytical model of the electromagnetic NSM is established using the filament method and the finite element method. Structural parameter optimization analysis is then conducted for the NSM. Secondly, the dynamic equations of the MQZS EVI system are formulated. The vibration isolation performance and energy-harvesting characteristics of the MQZS EVI system are evaluated using the harmonic balance method and the pseudo-arc length continuation method. Finally, a prototype is manufactured and tested. The experimental results demonstrate that the MQZS EVI system can effectively isolate ultra-low-frequency vibrations while simultaneously capturing energy from low-frequency vibrations.

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一种新型磁阵准零刚度能量收集隔振器

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来源期刊

Acta Mechanica Sinica 物理-工程：机械

CiteScore

5.60

自引率

20.00%

发文量

1807

审稿时长

4 months

期刊介绍： Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences. Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences. In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest. Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics