Design and Research of Circular Groove Disk-type Magneto-rheological Brake
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摘要: 磁流变液制动器制动力矩不足始终是限制磁流变液制动器实际应用的主要原因。本文通过在普通制动盘的表面增加半圆形凹槽和凸脊,增大制动盘的工作面积进而增大磁流变液制动器的制动力矩。建立凸脊与圆槽配合制动的制动力矩的模型,得到影响力矩的参数。通过数学求导法求得凸脊的圆心位置,采用ANSYS中的电磁模块对圆槽式制动盘工作间隙处做磁场分析,确定凸脊的尺寸。综合制动面积和磁感应强度的变化结果,本文设计的圆槽盘式磁流变液制动器制动力矩相比于普通盘式磁流变液制动器的制动力矩提高了33%。Abstract: Insufficient braking torque of magneto-rheological fluid(MRF)brake is always a key factor restricting the application of MRF brake. In this paper, by adding semicircular grooves and ridges on the surface of the conventional brake disc, the working area of the brake disc is increased and the braking torque of the MRF brake is increased. The model of the braking torque with the combination of the ridge and the groove is established, and the parameters influencing the torque are obtained. The location of the center of the ridge is obtained by the mathematical derivation method. The magnetic field of the working gap of the circular groove brake disc is analyzed by ANSYS electromagnetic module to determine the size of the ridge. The research results show that the brake torque of the circular groove disc-type MRF brake is improved by 33% compared with that of the conventional disc-type MRF brake.
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Key words:
- brake /
- magneto-rheological fluid /
- circular groove disc /
- brake torque /
- working area
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[1] 孟德建,张立军,阮丞,等.摩擦引起的制动器热点问题综述[J].同济大学学报(自然科学版),2014,42(8):1203-1210 Meng D J, Zhang L J, Ruan C, et al. Literature survey of friction-induced hot spots in brakes[J]. Journal of Tongji University (Natural Science), 2014,42(8):1203-1210(in Chinese) [2] 杨兆军,范久臣,丁树伟,等.鼓式制动器应力场数值模拟[J].电子科技大学学报,2010,39(4):623-628 Yang Z J, Fan J C, Ding S W, et al. Stress field numerical simulation of automotive drum brake[J]. Journal of University of Electronic Science and Technology of China, 2010,39(4):623-628(in Chinese) [3] 袁春静,吴永根,葛振亮.制动鼓瞬态温度场有限元分析[J].科学技术与工程,2006,6(8):1154-1156 Yuan C J, Wu Y G, Ge Z L. Unsteady state heat transfer analysis of drum brake system[J]. Science Technology and Engineering, 2006,6(8):1154-1156(in Chinese) [4] Zagrodzki P. Thermoelastic instability in friction clutches and brakes-transient modal analysis revealing mechanisms of excitation of unstable modes[J]. International Journal of Solids and Structures, 2006,46(11-12):2463-2476 [5] 郑开魁.磁流变液制动器的研究及其应用[J].机电技术,2014,37(4):153-156 Zheng K K. Research and applications of magneto-rheological brake[J]. Mechanical & Electrical Technology, 2014,37(4):153-156(in Chinese) [6] Spaggiari A, Dragoni E. Combined squeeze-shear properties of magnetorheological fluids:effect of pressure[J]. Journal of Intelligent Material Systems and Structures, 2014,25(9):1041-1053 [7] 吴杰,蒋学争,姚进,等.新型双层多线圈磁流变制动器研究[J].四川大学学报(工程科学版),2016,48(5):201-209 Wu J, Jiang X Z, Yao J, et al. Research on a novel double-layer multi-coil magnetorheological brake[J]. Journal of Sichuan University (Engineering Science Edition), 2016,48(5):201-209(in Chinese) [8] 丁柏群,叶宇.一种叶轮式MRF汽车制动器结构设计与性能仿真[J].汽车技术,2011,(8):34-38 Ding B Q, Ye Y. Structure design and performance simulation for a van wheel type vehicle MRF brake[J]. Automobile Technology, 2011,(8):34-38(in Chinese) [9] 王志霞,李自贵.楔槽式磁流变液离合器探究[J].机械工程与自动化,2012,(3):73-74 Wang Z X, Li Z G. Study of wedge type magnetorheological fluids clutch[J]. Mechanical Engineering & Automation, 2012,(3):73-74(in Chinese) [10] Carlson J D, Jolly M R. MR fluid, foam and elastomer devices[J]. Mechatronics, 2000,10(4-5):555-569 [11] 林其壬,赵佑民.磁路设计原理[M].北京:机械工业出版社,1987 Lin Q R, Zhao Y M. Theory of magnetic circuit design[M]. Beijing:China Machine Press, 1987(in Chinese) [12] Sohn J W, Jeon J, Nguyen Q H, et al. Optimal design of disc-type magneto-rheological brake for mid-sized motorcycle:experimental evaluation[J]. Smart Materials and Structures, 2015,24(8):085009
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