摘要
提出了一种多层挤压式的电流变阻尼器模型,首先基于电流变Bi-Viscosity塑性模型,对挤压式电流变阻尼器进行了数学建模及讨论,然后对其动态特性进行研究,输入采用正弦波激励,模拟分析了阻尼器在不同外部条件下输出的阻尼力.仿真结果表明,阻尼力是激励振幅、频率和外加电压的增函数,阻尼力分为粘性阻尼和电致阻尼两部分,阻尼器的阻尼可控部分是其电致阻尼力,可以通过外加电压对其调节,同时模型也可应用于挤压式磁流变液阻尼器的理论设计.
The multi-electrode squeeze ER damper was presented. The mathematic model and dynamic characteristics of the ER damper were investigated based on the Bi-Viscosity plasticity model. Then the output forces of ER damper were simulated in different situations under sinusoidal input. Results show that the damper force is an increasing function of the input amplitude, frequency and potential difference, and it is composed of the viscous damping and electro-damping force. Actually the controllable part is the electro-damping force, which can be adjusted by potential difference. The theoretical analysis can also be utilized for the MR damper.
出处
《动力学与控制学报》
2007年第2期169-172,共4页
Journal of Dynamics and Control
基金
国家部委预研项目(405020104)~~
关键词
电流变液
电流变阻尼器
多层挤压式
动态特性
ER fluid, ER damper, multi-electrode squeeze, dynamic characteristics
