电流变力矩放大器

Electrorheological Moment Amplifier

设计和开发一种电流变力矩放大器 ,介绍其工作原理、结构特点。在此基础上 ,研究结构设计参数间隙、圆盘内外径对机构性能的影响 ,并提出多目标规划的电流变力矩放大器的优化设计模型 ,从提高放大器放大倍数或提高动态响应速度的角度 ,规定权重和子目标的追求值 ,从而设计出性能优良的放大器。采用实验拟合方法 ,识别放大力矩与控制电场成抛物线关系 ;利用阶跃和脉冲电场信号研究这种装置的动态性能 ,结果表明 ,通过多目标规划的优化设计模型得到的电流变力矩放大器 。

An electrorheological moment amplifier is developed and its work principle and structure characteristics are explained. Then, we research the effects of structural parameters on performance of mechanism and present optimization design methods and control methods. With a view of enhancing the amplification coefficient or increasing the speed of dynamic response, the expectation values of objectives and the weight are obtained and the amplifier with good performance could be designed. In this paper, the parabolic relation between moment amplified and electric field is decided by experimental fit method. And step and pulse electric field signals are used to study the dynamical properties of the device. As the result of experiments, it is confirmed that the electrorheological moment amplifier has good dynamic performance through optimization design methods.