摘要
为提高传统单线圈混合式磁流变制动器的制动力矩,提出了一种双线圈旁置式新型磁流变制动器.利用一种新的线圈安装方式,增大了制动盘圆柱面的可控作用面积,从而增大了磁流变制动器的制动力矩.基于Herscher-Bulkley模型,提出了双线圈旁置式磁流变制动器的力矩模型与磁路设计方法,并在特定条件下对其进行了多目标优化.研究结果表明:与单线圈混合式相比,在相同体积条件下,双线圈旁置式能产生更大的制动力矩;而为了充分利用磁流变液的流变性能,获得更紧凑的结构,双线圈旁置式磁流变制动器的宽度应在80-100mm之间,长宽比的合理范围应在0.6-1.2之间;优化后在制动器质量基本维持不变的情况下,制动力矩提高了11%.研究结果可作为磁流变制动器的设计参考.
In order to improve the braking torque of conventional hybrid magnetorheological brake(MRB)with single coil,a novel MRB with double coils placed on the side housing is proposed.The novel structure enabled it to have larger area of controllable interaction face in cylindrical surface of brake disk and a larger braking torque.The torque model and design method of magnetic circuit of the novel MRB were proposed based on Herscher-Bulkley model.And then a multi-objective optimization under the specific condition was conducted.Comparative analysis between conventional and novel MRB demonstrated that under the condition of the same volume,the novel MRB had a larger braking torque.And in order to make full advantage of the rheological properties of MRF and get a more compact structure,the width of the brake should be 80-100 mm and the reasonable range of the length-width ratio should be 0.6-1.2.After optimization,the braking torque was increased by 11% in the situation which its weight basically remained unchanged.The results can be taken as reference to the design of MRB.
作者
邬思敏
孟文俊
李淑君
王尧
徐成功
WU Si-min MENG Wen-jun LI Shu-jun WANG Yao XU Cheng-gong(School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China Shanxi Key Laboratory of Intelligent Logistics Equipment, Taiyuan 030024, China)
出处
《工程设计学报》
CSCD
北大核心
2016年第5期453-460,共8页
Chinese Journal of Engineering Design
基金
国家自然科学基金面上项目(51575370)
山西省煤基重点科技攻关项目(MJ2014-09
MJ2014-02)
山西省研究生教育创新项目(2015BY49)
晋城市科技计划项目(201501004-14)
太原科技大学青年科技研究基金项目(20133001)
关键词
磁流变制动器
制动力矩
磁路设计
多目标优化
magnetorheological brake
braking torque
magnetic circuit design
multi-objective optimization