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。
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.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2004年第1期20-24,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
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).
