Dynamic analysis of a novel multilink-spring mechanism for vibration isolation and energy harvesting

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外文摘要：Due to technical limitations,existing vibration isolation and energy harvesting(VIEH)devices have poor performance at low frequency.This paper proposes a new multilink-spring mechanism(MLSM)that can be used to solve this problem.The VIEH performance of the MLSM under harmonic excitation and Gaussian white noise was analyzed.It was found that the MLSM has good vibration isolation performance for low-frequency isolation and the frequency band can be widened by adjusting parameters to achieve a higher energy harvesting power.By comparison with two special cases,the results show that the MLSM is basically the same as the other two oscillators in terms of vibration isolation but has better energy harvesting performance under multistable characteristics.The MLSM is expected to reduce the impact of vibration on high-precision sensitive equipment in some special sites such as subways and mines,and at the same time supply power to structural health monitoring devices.

外文关键词：

multilink-spring mechanismnonlinear dynamicsvibration isolationenergy harvester

作者：

谢佳衡、杨涛、唐介

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作者单位：

Research & Development Institute of Northwestern Polytechnical University in Shenzhen,Shenzhen 518057,China

Department of Engineering Mechanics,Northwest Polytechnical University,Xi'an 710072,China

Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province,School of Mechanics and Aerospace,Southwest Jiaotong University,Chengdu 610031,China

基金：

Guangdong Basic and Applied Basic Research FoundationGuangdong Basic and Applied Basic Research Foundation国家自然科学基金国家自然科学基金Opening Project of Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province

项目编号：

2022A15150109672023A15150128211200227212272293SZDKF-202101

出版年：

2024

DOI：

10.1088/1674-1056/ad21f6

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(5)

参考文献量51