电流变流体可变阻尼对系统振动的影响

吉林大学学报(工学版) ›› 2004, Vol. ›› Issue (1): 20-24.

电流变流体可变阻尼对系统振动的影响

刘昕晖¹, 宋玉泉², 陈塑寰¹

1. 吉林大学, 机械科学与工程学院, 吉林, 长春, 130025;
2. 吉林大学, 超塑性与塑性研究所, 吉林, 长春, 130025

收稿日期:2003-07-14 出版日期:2004-01-01
基金资助:
国家自然科学基金资助项目(59575025);吉林省科委自然科学基金资助项目(20000532).

Effect of variable damping of ER fluid on system vibration

LIU Xin-hui¹, SONG Yu-quan², CHEN Su-huan¹

1. College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China;
2. Superplastic and Plastic Research Institute, Jilin University, Changchun 130025, China

Received:2003-07-14 Online:2004-01-01

摘要/Abstract

摘要： 利用等效线性化的方法分析了电流变流体的等效阻尼、等效刚度及其对系统振动特性的影响。对具有电流变流体的阻尼器的振动响应进行了数值计算。结果表明:利用电流变流体的可变阻尼对系统的振动具有明显的抑制作用。控制电场强度可以控制系统的阻尼,电场强度的增加可导致峰值频率的增加及共振峰值的减小。

关键词: 电流变流体, 系统振动, 可变阻尼

Abstract: An equivalent linear damping for ER fluid's nonlinear damping was made by means of equivalent linearization,and the influence of variable damping of ER fluid on system vibration properties were analysed.The nonlinear equation of the vibrtion response of ER damper has been calculated.The results show that ER fluid could obviously reduce the vibration amplitudes of system.The damping of the system can be controled by controling the intensity of electric field.With the increase of intensity of electric field,the frequency peak value increases and the peak value of resonance decreases.

Key words: ER fluid, system vibration, variable damping

中图分类号:

O342

刘昕晖, 宋玉泉, 陈塑寰. 电流变流体可变阻尼对系统振动的影响[J]. 吉林大学学报(工学版), 2004, (1): 20-24.

LIU Xin-hui, SONG Yu-quan, CHEN Su-huan. Effect of variable damping of ER fluid on system vibration[J]. 吉林大学学报(工学版), 2004, (1): 20-24.

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