一种用于汽车悬架中产生负刚度的磁力弹簧  

Research on a Magnetic Spring for Generating Negative Stiffness in Automobile Suspension

作　　者：张学萍 王娜 Zhang Xueping;Wang Na(Anhui Vocational College of City Management,Hefei 230011,China)

机构地区：[1]安徽城市管理职业学院,安徽合肥230011

出　　处：《湖北汽车工业学院学报》2024年第4期22-25,32,共5页Journal of Hubei University Of Automotive Technology

基　　金：安徽省教育厅自然科学重点项目(2023AH051496);安徽省教育厅质量工程项目(2022zmgj001,2023sdxx236)。

摘　　要：设计了一种用于汽车悬架中产生负刚度的磁力弹簧,建立模型并进行仿真。结果表明:在保证系统总刚度大于0 N·mm^(-1)的前提下,负刚度磁力弹簧偏移精度约为5 mm,以5 Hz的频率调谐精度,范围为1.83~1.93 mm,最小偏移量约为2.533 mm;磁力弹簧的非线性特性能够缩小悬架共振区间,增加悬架隔振效果,且随着非线性程度加深,隔振性能呈非线性增加。A magnetic spring for generating negative stiffness in automobile suspension was designed,and a simulation model was established.The simulation results show that under the premise that the to-tal stiffness of suspension system is greater than 0 N·mm^(-1),the offset accuracy of the magnetic spring with negative stiffness is about 5 mm,and the tuning accuracy at a frequency of 5 Hz ranges from 1.83 to 1.93 mm;the minimum offset is about 2.533 mm.The nonlinear characteristics of magnetic spring can reduce the resonance interval of suspension and increase the vibration isolation effect of suspen-sion,and its vibration isolation performance increases nonlinearly as the nonlinearity degree intensifies.

关 键 词：汽车悬架 磁力弹簧 磁力负刚度 设计 

分 类 号：U463.33[机械工程—车辆工程]