基于Herschel-Bulkley模型的磁流变阻尼器转矩模型参数辨识  

Parameter Identification of Magnetorheological Damper Torque Model Based on Herschel-Bulkley Model

作　　者：欧阳青 胡红生[1] 宋玉来 郑佳佳 王炅[3] OUYANG Qing;HU Hongsheng;SONG Yulai;ZHEGN Jiajia;WANG Jiong(College of Mechanical and Electrical Engineering,Jiaxing University,Jiaxing Zhejiang 314033,China;College of Engineering,Zhejiang Normal University,Jinhua Zhejiang 321004,China;School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]嘉兴学院机电工程学院,浙江嘉兴314033 [2]浙江师范大学工学院,浙江金华321004 [3]南京理工大学机械工程学院,南京210094

出　　处：《传感技术学报》2019年第7期1077-1082,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学青年基金项目(51805209,51705467);浙江省自然科学基金项目(LGG19E050017,LQ17E050010)

摘　　要：针对目前Herschel-Bulkley模型参数值通常随试验条件而变化,存在无法构建确定的数学模型的局限性,提出一种Herschel-Bulkley模型全局参数辨识的方法。针对所设计的多级圆筒式磁流变阻尼器,基于Herschel-Bulkley模型建立了阻尼器的转矩力学模型并搭建扭矩测试系统以确定模型参数,通过1stOpt优化分析软件的Levenberg-Marquardt算法和通用全局优化算法对转矩力学模型进行参数辨识,确定模型中液体流动行为参数 k和n 分别为49.88及0.576。参数辨识后的Herschel-Bulkley扭矩模型在不同磁场条件下基本满足扭矩预测效果,可为后续对于器件的有限元分析计算提供理论依据。In view of the limitation that the current Herschel-Bulkey model parameter values usually vary with the test conditions and it is impossible to construct a certain mathematical model,a method for global parameter identification of Herschel-Bulkey model is proposed.For the designed multi-stage cylindrical magnetorheological damper,the torque model of the damper was established based on Herschel-Bulkley model and a torque test system was set up to determine the model parameters.The parameters of the torque mechanics model were identified by Levenberg-Marquardt algorithm and universal global optimization algorithm of 1stOpt optimization analysis software,and the liquid flow behavior parameters k and n in the model were determined to be 49.88 and 0.576,respectively.The Herschel-Bulkley torque model after parameter identification basically meets the torque prediction effect under different magnetic field conditions,which can provide a theoretical basis for the subsequent finite element analysis and calculation of the device.

关 键 词：旋转式磁流变阻尼器 Herschel-Bulkley模型 转矩预测 参数辨识 

分 类 号：TH12[机械工程—机械设计及理论]