基于相对加速度-相对速度控制的半主动惯容隔振器动态特性研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (21) : 194-201.

论文

王勇1，汪若尘1，孟浩东2，张步云1

作者信息 +

Dynamic characteristics of semi active inerter-based vibration isolator with relative acceleration-relative velocity control

WANG Yong1，2,WANG Ruochen1, MENG Haodong3, ZHANG Buyun1

Author information +

文章历史 +

摘要

将惯质系数可调的半主动惯容器应用到隔振器中，根据其力学特性，提出相对加速度-相对速度控制策略调节半主动惯容器的惯质系数在最大与最小惯质系数间切换。研究三元件并联式与串联式半主动惯容隔振器在基础简谐激励下的动态特性，运用平均法求解系统的动态响应，并与数值解进行对比。定义动态位移峰值、绝对位移传递率峰值、隔振频带以及高频带的绝对位移传递率四个性能评价指标来评价系统的隔振性能，并与被动惯容隔振器进行对比分析。研究表明相较被动惯容隔振器，半主动惯容隔振器有更好的隔振性能。

Abstract

A semi-active inerter with its inertance adjustable was applied in a vibration isolator.Based on its mechanical features, the relative acceleration-relative velocity control strategy was proposed to adjust its inertance between the maximum value and the minimum one.The dynamic characteristics of 3-element parallel connection and series connection semi-active inerter-based vibration isolators under base harmonic excitation were studied.The dynamic response of the system was solved using the averaging method, and compared with the numerical solution.Four performance evaluation indexes including dynamic displacement peak value, absolute displacement transmissibility peak value, vibration isolation frequency band and high frequency band absolute displacement transmissibility were defined to evaluate the system’s vibration isolation performance.The evaluating results were compared with those of the passive inerter-based vibration isolator.The results showed that compared with passive inerter-based vibration isolators, semi-active inerter-based vibration isolators have better vibration isolation performance.

导出引用

王勇1，汪若尘1，孟浩东2，张步云1. 基于相对加速度-相对速度控制的半主动惯容隔振器动态特性研究[J]. 振动与冲击, 2019, 38(21): 194-201

WANG Yong1，2,WANG Ruochen1, MENG Haodong3, ZHANG Buyun1. Dynamic characteristics of semi active inerter-based vibration isolator with relative acceleration-relative velocity control[J]. Journal of Vibration and Shock, 2019, 38(21): 194-201

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