An active high-static-low-dynamic-stiffness vibration isolator with adjustable buckling beams: theory and experiment

被引：0

作者：

Kefan Xu

Muqing Niu

Yewei Zhang

Liqun Chen

机构：

[1] Harbin Institute of Technology,School of Science

[2] Shenyang Aerospace University,College of Aerospace Engineering

[3] Shanghai University,Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Frontier Science Center of Mechanoinformatics, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science

[4] Shanghai Institute of Aircraft Mechanics and Control,undefined

来源：

Applied Mathematics and Mechanics | 2024年 / 45卷

关键词：

active control; high-static-low-dynamic-stiffness (HSLDS); vibration isolator dynamic analysis; O328; 70K30;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

High-static-low-dynamic-stiffness (HSLDS) vibration isolators with buckling beams have been widely used to isolate external vibrations. An active adjustable device composed of proportion integration (PI) active controllers and piezoelectric actuators is proposed for improving the negative stiffness stroke of buckling beams. A nonlinear output frequency response function is used to analyze the effect of the vibration reduction. The prototype of the active HSLDS device is built, and the verification experiment is conducted. The results show that compared with the traditional HSLDS vibration isolator, the active HSLDS device can broaden the isolation frequency bandwidth, and effectively reduce the resonant amplitude by adjusting the active control parameters. The maximum vibration reduction rate of the active HSLDS vibration isolator can attain 89.9%, and the resonant frequency can be reduced from 31.08 Hz to 13.28 Hz. Therefore, this paper devotes to providing a new design scheme for enhanced HSLDS vibration isolators.

引用

页码：425 / 440

页数：15

共 134 条

[1]

Jin G X(2022)Cascaded quasi-zero stiffness nonlinear low-frequency vibration isolator inspired by human spine Applied Mathematics and Mechanics (English Edition) 43 813-824

[2]

Wang Z H(2021)A nonlinear vibration isolator with quasi-zero-stiffness inspired by Miura-origami tube Nonlinear Dynamics 105 1313-1325

[3]

Yang T Z(2022)On the detailed design of a quasi-zero stiffness device to assist in the realisation of a translational Lanchester damper Mechanical Systems and Signal Processing 164 108258-238

[4]

Han H S(2021)A nonlinear X-shaped structure based tuned mass damper with multivariable optimization (X-absorber) Communications in Nonlinear Science and Numerical Simulation 99 105829-597

[5]

Sorokin V(2021)Six degree of freedom quasi-zero stiffness magnetic spring with active control: theoretical analysis of passive versus active stability for vibration isolation Journal of Sound and Vibration 502 116086-3376

[6]

Tang L H(2023)Vibration isolation performance of a rectangular panel with high-static-low-dynamic stiffness supports Applied Mathematical Modelling 119 218-127

[7]

Cao D Q(2019)Mathematical modeling and analysis of a meta-plate for very low-frequency band gap Applied Mathematical Modelling 73 581-1062

[8]

Gatti G(2020)Analytical and experimental investigation of a high-static-low-dynamic stiffness isolator with cam-roller-spring mechanism International Journal of Mechanical Sciences 186 105888-5214

[9]

Shaw A D(2013)On the characteristics of a quasi-zero stiffness isolator using Euler buckled beam as negative stiffness corrector Journal of Sound and Vibration 332 3359-196

[10]

Goncalves P J P(2019)An experiment investigation on the effect of Coulomb friction on the displacement transmissibility of a quasi-zero stiffness isolator Journal of Mechanical Science and Technology 33 121-121

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