华东交通大学学报2024，Vol.41Issue(3)：110-118,9.
基于NSGA-Ⅱ的内外液流通道筒式磁流变制动器优化设计
Optimal Design of Drum MR Brake with Internal and External Fluid Flow Channels Based on NSGA-Ⅱ Algorithm
摘要
Abstract
[Objective]In order to solve the problem of low magnetic field utilization of traditional magnetorheo-logical brake(MRB),a drum MRB with internal and external fluid flow channel was designed.[Method]By adding non-magnetic rings and non-magnetic disk to the magnetic material rotary sleeve and the stator magnetic cylinder,the magnetic flux was guided meander through six effective damping gaps in the internal and external axial flow channels.Therefore,the torque performance was improved while keeping the outer dimension of the brake remains unchanged.The structure and working principle of the internal and external fluid flow MR brake were described,and the mathematical model of braking torque were deduced and established.Based on the analy-sis of electromagnetic field and torque,the accuracy of the model was predicted through theoretical calculation and DOE experiment orthogonal method,and the multi-objective optimization of the MR brake with internal and external fluid flow channels was carried out by using the NSGA-Ⅱ algorithm.[Result]The results show that,with an applied current of 2.0 A,the braking torque of the initial and optimal MRB dampers are 36.38 N·m and 47.35 N·m,respectively,which improves by 30.15％.Compared with the initial damper,the braking torque in-creased by 21.31 from 18.28,and the dynamic adjustable range improves by 16.58％.[Conclusion]The optimal MRB meets the braking performance requirements of unmanned delivery vehicles.关键词
磁流变制动器/内外液流通道/多目标优化设计/制动性能Key words
magnetorheological brake(MRB)/internal and external fluid flow channels/multi-objective optimi-zation design/braking performance分类
机械制造引用本文复制引用
应仕诚,胡国良,喻理梵..基于NSGA-Ⅱ的内外液流通道筒式磁流变制动器优化设计[J].华东交通大学学报,2024,41(3):110-118,9.基金项目
国家自然科学基金项目(52165004) （52165004）
江西省自然科学基金重点项目(20212ACB204002) （20212ACB204002）
江西省国际科技合作重点项目(20232BBH80010) （20232BBH80010）
江西省教育厅科学技术研究项目(GJJ210629) （GJJ210629）
