典型文献
A quasi-zero-stiffness isolator with a shear-thinning viscous damper
文献摘要：
Quasi-zero-stiffness (QZS) vibration isolators have been widely studied, because they show excellent high static and low dynamic stiffnesses and can effectively solve low-frequency and ultralow-frequency vibration. However, traditional QZS (T-QZS) vibration isolators usually adopt linear damping, owing to which achieving good isola- tion performance at both low and high frequencies is difficult. T-QZS isolators exhibit hardening stiffness characteristics, and their vibration isolation performance is even worse than that of linear vibration isolators under a large excitation amplitude. Therefore, this study proposes a QZS isolator with a shear-thinning viscous damper (SVD) to improve the vibration isolation performance of the T-QZS isolators. The force-velocity relation of the SVD is obtained, and a dynamic model is established for the isolator. The dynamic responses of the system are solved using the harmonic balance method (HBM) and the Runge-Kutta method. The vibration isolation performance of the system is evaluated using force transmissibility, and the isolator parameters are analyzed. The results show that compared with the T-QZS isolators, the proposed QZS-SVD isolator achieves the lower initial vibration isolation frequency and peak value, and exhibits better vibration isolation performance at medium and high frequencies. Moreover, the proposed isolator can withstand a large excitation amplitude in the effective vibration isolation range.
文献关键词：
中图分类号：
作者姓名：
Guilin WEN;Yu LIN;Junfeng HE
作者机构：
School of Mechanical and Electrical Engineering,Guangzhou University,Guangzhou 510006,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,Hebei Province,China
文献出处：
引用格式：
[1]Guilin WEN;Yu LIN;Junfeng HE-.A quasi-zero-stiffness isolator with a shear-thinning viscous damper)[J].应用数学和力学（英文版）,2022(03):311-326
A类：
isola
B类：
quasi,zero,shear,thinning,viscous,damper,Quasi,QZS,vibration,isolators,have,been,widely,studied,because,they,show,excellent,high,static,dynamic,stiffnesses,can,effectively,frequency,ultralow,However,traditional,usually,adopt,linear,damping,owing,which,achieving,good,performance,both,frequencies,difficult,hardening,characteristics,their,isolation,even,worse,than,that,under,large,excitation,amplitude,Therefore,this,study,proposes,SVD,improve,force,velocity,relation,obtained,model,established,responses,system,solved,using,harmonic,balance,method,HBM,Runge,Kutta,evaluated,transmissibility,parameters,analyzed,results,compared,proposed,achieves,lower,initial,peak,value,exhibits,better,medium,Moreover,withstand,range
AB值：
0.449051
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