【摘要】 在分析了影响电流变阻尼器的粘性阻尼和屈服阻尼的诸多因素后，提出利用多层电极结构来扩大阻尼器的可控范围。研制了一套可测试电流变阻尼器阻尼系数、响应时间和耗散功率的静特性测试系统。为了充分利用阻尼器的可控范围，对阻尼器与减振系统的匹配设计进行了研究。针对电流变阻尼器的阻尼力具有非线性的特点，提出了以平均阻尼匹配减振系统最佳被动阻尼的设计准则。最后利用电流变阻尼器对双层隔振系统，以正弦扫频信号作为激励，通过在线主导频率的识别，进行了自适应阻尼减振控制试验，结果表明共振频率和高频的振幅减振效果均达到３０％以上。更多还原

【Abstract】 After analyzing the influence of a good many factors on the viscous damper force and yield damper force separately, a kind of multi-annular electrode structure which is to enlarge the controllable range of ER damper force is presented. A test system, which can obtain the ER damper’s behaviors, such as damper coefficient, respond time and power wasting, is also introduced In order to fully utilize the controllable range of ER damper force, the match problem about the damper force and the vibration isolation system using the ER damper is studied. Since the ER damper coefficient is non-linear, a damper design principle that the average damper coefficient should match the damper coefficient of the optimal passive damper is proposed. In the end, an experiment of using ER damper in a double deck isolation system is described. The exciting source is a sweep signal and the damper force is adaptively controlled through online main frequency identification. Experimental results present about 30% better isolation effect than using normal damper.更多还原