电流变液与压电陶瓷复合的自耦合阻尼器

基于智能结构的思想,率先提出设计制作电流变液和压电陶瓷复合的自耦合阻尼器．相比于通常的电流变液阻尼器,该自耦合阻尼器采用压电陶瓷响应外界振动而输出高电压,激励电流变液体工作,从而省去了外加高压电源．随外作用力变化,激励电流变液的压电陶瓷电压自动改变,阻尼器具有自适应的特征,省去了通常的计算机等控制系统．研制的第1代电流变液／压电陶瓷阻尼器实现了自适应的控制过程,显示了良好的减振性能．在第2代产品中采用了新的设计,提高了阻尼器的结构稳定性和可靠性,使阻尼器整体性能得到提高．

SELF-COUPLED DAMPERS COMPOSED OF ELECTRORHEOLOGICAL FLUIDS AND PIEZOELECTRIC CERAMICS

Based on the concept of intelligent structures, self-coupled dampers composed of electrorheological (ER) fluids and piezoelectric ceramics are proposed in this paper. Unlike the conventional ER dampers, the selfcoupled dampers employ piezoelectric ceramics to respond the external vibration and to provide the electric field for solidification of ER fluids. With a change in the external vibration, the electric field changes accordingly due to the piezoelectric ceramics, resulting in an adaptive control process. The self-coupled dampers have a simple and compact structure since the high voltage supply and the control system are not involved. Two generation products of the self-coupled dampers have been manufactured. Several modifications have been included in the second generation self-coupled damper and both the stabihty and the reliability of the damper are improved.