新型超低频非线性被动隔振系统的设计

路纯红;白鸿柏

振动与冲击 ›› 2011, Vol. 30 ›› Issue (1) : 234-236.

PDF(1462 KB)
PDF(1462 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (1) : 234-236.
论文

新型超低频非线性被动隔振系统的设计

  • 路纯红; 白鸿柏
作者信息 +

a New type Nonlinear Ultra-low Frequency Passive Vibration Isolation System

  • Lu Chunhong; Bai Hongbai
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文章历史 +

摘要

通过分析正负刚度并联隔振机理,设计了一种新型超低频被动隔振系统。该系统采用负刚度机构与正刚度弹簧并联,具有较高的支撑刚度和极低的运动刚度,且系统刚度呈现非线性,解决了传统被动隔振系统存在的超低频隔振难题。通过对该系统力学特性进行分析,给出了系统刚度表达式及在平衡位置处的零刚度条件,为新型超低频非线性隔振器的设计提供了理论指导。

Abstract

By means of the analysis on vibration isolation mechanism of combined positive and negative stiffness, a new type ultra-low passive vibration isolation system was designed in this paper. The method of combined negative stiffness mechanism and positive stiffness spring was used in this isolator so that it possesses high supporting stiffness as well as ultra-low vibration stiffness, and its stiffness also has nonlinear characteristics, which resolved the problem of ultra-low frequency vibration isolation in the traditional passive vibration isolator. By analyzed the mechanical characteristic of this system, the expression of the stiffness of the isolator and the zero stiffness condition of system at the equilibrium position were deduced, which offer theory guide for the design of new type nonlinear ultra-low frequency vibration isolator.

关键词

负刚 / 隔振系统 / 非线性 / 超低频

Key words

negative / vibration isolation system / nonlinear / ultra-low frequency

引用本文

导出引用
路纯红;白鸿柏 . 新型超低频非线性被动隔振系统的设计[J]. 振动与冲击, 2011, 30(1): 234-236
Lu Chunhong;Bai Hongbai . a New type Nonlinear Ultra-low Frequency Passive Vibration Isolation System[J]. Journal of Vibration and Shock, 2011, 30(1): 234-236

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