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

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

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
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 out-put 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 con-ducted.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 de-votes to providing a new design scheme for enhanced HSLDS vibration isolators.

active controlhigh-static-low-dynamic-stiffness(HSLDS)vibration isola-tor dynamic analysis

Kefan XU、Muqing NIU、Yewei ZHANG、Liqun CHEN

展开 >

School of Science,Harbin Institute of Technology,Shenzhen 518055,Guangdong Province,China

College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China

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,Shanghai University,Shanghai 200444,China

Shanghai Institute of Aircraft Mechanics and Control,Shanghai 200092,China

展开 >

国家自然科学基金国家自然科学基金国家自然科学基金

621881011227210312022213

2024

10.1007/s10483-024-3087-6

应用数学和力学(英文版)
上海大学

应用数学和力学(英文版)

影响因子：0.294
ISSN：0253-4827
年,卷(期)：2024.45(3)
  • 35