摘要
磁流变阻尼器是一种应用前景广阔的智能型阻尼器。研制了双出杆流动型磁流变阻尼器,对其进行了阻尼特性试验。在阻尼特性试验研究的基础上,建立了描述磁流变阻尼器阻尼特性的非线性模型。讨论了施加的电流、激振频率对非线性模型参数的影响。所建立的非线性模型与传统的Bingham塑性模型相比较具有精度高、能准确反映磁流变阻尼器滞回特性等优点。
Magnetorheological （MR） damper is a new kind of smart damper, which has great potential in semi-active control of mechanical vibration. A flow mode MR damper was designed and manufactured. The paper discusses qualitative behavior of the MR damper from the experimental data when the damper was subjected to sinusoidal excitation. A nonlinear hysteretic bi-viscous model to describe the performance of the MR damper is suggested. Afterwards, the parametric identification of the MR damper is outlined. The relationships between viscous coefficient, applied current and activating frequency are investigated. In addition, the operational effects on the parameters of the model are investigated.
出处
《工程力学》
EI
CSCD
北大核心
2007年第4期183-187,共5页
Engineering Mechanics
基金
西安交通大学自然科学基金资助
陕西省自然科学基金资助(2001SL10)
关键词
力学模型
非线性滞回双粘性模型
阻尼器特性试验
磁流变阻尼器
阻尼系数
mechanical model
nonlinear hysteretic bi-viscous model
damper characteristic testing
magnetorheological （MR） damper
damping coefficient
