电流变阻尼器非均布场控电极设计及其电场仿真  

Design of Electrode Configuration on Non-uniform Electric Field-governed Electrorheological Dampers and Its Electric Field Simulation

作　　者：窦世磊 黄靖宇 徐鲁宁[1,2,3] 韩立 DOU Shilei;HUANG Jingyu;XU Luning;HAN Li(Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Electrical Insulation and Power Equipment, Xi’ an Jiaotong Univeristy, Xi’ an Shaanxi 710049, China)

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学,北京100049 [3]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049

出　　处：《机床与液压》2020年第8期167-170,180,共5页Machine Tool & Hydraulics

基　　金：电力设备电气绝缘国家重点实验室(西安交通大学)开放课题(EIPE17207);国家重点研发计划重点专项(2018YFF0109100)。

摘　　要：均匀电场控制下的电流变液在高剪切速率载荷作用下会丧失电流变控制能力,无法满足高速冲击载荷电流变阻尼器的应用需求。现有研究表明采用具有与电流变液流动方向平行的电场分量的非均布电场控制会改善这一问题。设计一种圆环型交指状电极结构,能够形成具有平行电场分量的非均布控制电场,并以电流变作用空间内有效电场强度值来表征非均布控制电场,通过COMSOL Multiphysics软件仿真分析了电极结构几何参数对有效电场强度的影响规律。仿真结果表明:有效电场强度最小值随电极宽度的增加而减小,随绝缘宽度的增加而增加。研究结果对非均布场控电流变阻尼器的电极结构设计提供了依据,并为非均布场控下电流变液其他应用提供了参考。The electrorheological(ER)fluid,governed by a uniform electric field,will lose the damping ability given by the electric field under the condition of high shear rate load,and cannot meet the demands of the high speed impact load applications.Existing research results show that the parallel components of a non-uniform electric field which has the same direction as the flow of the ER fluid can make ER dampers work with a broader range of higher shear rates.A ring-shaped interdigitated electrodes configuration was designed,which could generate a non-uniform electric field with parallel components.An effective electric field strength value was carried out as the characterization of the non-uniform electric field in the ER fluids working area,and simulations of the influences of geometric parameters of the electrode configurations on the effective electric field strength were done by using COMSOL Multiphysics.The results show that the minimum of effective electric field strengths decreases with the increase of the electrodes layer widths and increases with the increase of insulating layer widths,which can support the electrodes configurations design of a non-uniform field-governed ER damper,and provides reference to other ER applications governed by the same type of electric fields.

关 键 词：非均布电场 交指状电极 电流变液 阻尼器 仿真分析 

分 类 号：TH703[机械工程—仪器科学与技术]