重庆大学学报2024，Vol.47Issue(8)：26-38,13.DOI:10.11835/j.issn.1000.582X.2024.08.003
多盘连续可变工作间隙磁流变制动器仿真与验证
Simulation and verification of multi-disc continuous variable working gap magneto-rheological brake
摘要
Abstract
This work proposes an innovative magnetorheological fluid (MR) brake design with a multi-disc structure and adjustable MR fluid working gap to enhance braking efficiency. Simulations of the three-dimensional static magnetic field,varying by electrical current and gap state,were carried out in ANSYS Workbench. Magnetic field distribution across the working gaps was analyzed and brake performance evaluation was complemented by test bench. Results indicate a relatively uniform magnetic vector distribution within the MR fluid working area,suggesting a well-conceived magnetic circuit design. While theoretical and experimental results generally align,discrepancies widen at higher currents. Braking torque surges from 0 A to 2.5 A,and then moderates from 2.5 A to 4.0 A,peaking at 146.4 N·m,which is a 25.80％ increase over the non-gap change condition. Achieving a torque-to-volume ratio (TVR) of 48.81 kN·m/m3,the designed brake surpasses traditional MR brakes in compactness and torque adjustability. This design methodology and experimental findings offer valuable insights for advancing MR brake structural research.关键词
磁流变液/楔形工作间隙/连续可变/制动性能Key words
magnetorheological fluid/wedge-shaped working gap/continuous variable/braking performance分类
交通工程引用本文复制引用
李东恒,王娜,Saiful Anuar Abu Bakar,宋万里..多盘连续可变工作间隙磁流变制动器仿真与验证[J].重庆大学学报,2024,47(8):26-38,13.基金项目
国家自然科学基金资助项目(52005085).Supported by National Natural Science Foundation of China(52005085). （52005085）
