一种半主动式高静⁃低动刚度电磁隔振器研究  

A semi⁃active high static⁃low dynamic stiffness electromagnetic isolator

作　　者：张明[1] 李洪涛 崔浩东 孙凤[1] 孙兴伟[1] 周冉 ZHANG Ming;LI Hongtao;CUI Haodong;SUN Feng;SUN Xingwei;ZHOU Ran(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870

出　　处：《振动工程学报》2025年第4期777-784,共8页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52005344);辽宁省科技厅面上项目(2024⁃MSLH⁃372);国家重点研发计划项目(2024YFB3410002)。

摘　　要：为了降低隔振器的起始隔振频率,增强对不同振动源的适应性,并获得比传统被动隔振器更出色的振动抑制效果,本文提出了一种采用电磁线圈嵌套永磁体的非对称刚度结构的高静⁃低动刚度(high static⁃low dynamic stiffness,HSLDS)隔振器。其能够根据不同振源频率的变化调整系统刚度,实现半主动隔振效果。采用增量谐波平衡法,获得了系统在不同激励、电流下的位移传递率特性。基于隔振器的系统模型,提出了一种半主动控制策略,该策略可以根据振源频率的变化来调节系统的刚度。搭建了试验测试平台,进行试验研究。结果显示,所提出的高静⁃低动刚度隔振器可以使起始隔振频率降低19.25%。系统通过引入半主动控制策略,可以将最大加速度振幅衰减54.7%。To reduce the starting isolation frequency of the isolator,enhance adaptability to different vibration sources,and achieve superior vibration suppression effects compared to traditional passive isolators,this study proposes a high static-low dynamic stiffness(HSLDS)isolator with asymmetric stiffness structure employing electromagnetic coils nested with permanent magnets.It can adjust the system stiffness according to changes in vibration source frequency,thereby realizing semi-active vibration isolation.The incremental harmonic balance method is employed to obtain the displacement transmissibility characteristics of the system under different excitations and currents.Based on the system model of the isolator,a semi-active control strategy is proposed in this study,which can adjust the system stiffness according to changes in vibration source frequency.An experimental test platform was constructed for experimental research.The results show that the proposed HSLDS isolator can reduce the starting isolation frequency by 19.25%.Introducing the semi-active control strategy can attenuate the maximum acceleration amplitude by 54.7%.

关 键 词：半主动隔振 高静⁃低动刚度 频率 电流 

分 类 号：TB535.1[理学—物理]