圆筒式磁流变制动器磁路设计与优化分析
发布时间:2019-01-04 09:02
【摘要】:针对传统磁流变器件中励磁线圈长时间通电产生高温致使磁流变液制动效率失效的问题,设计一种利用永磁体代替通电线圈充当磁源的圆筒式磁流变制动器。针对该传动装置,从理论分析了制动器工作原理,建立了磁路模型;应用ANSYS对制动器的磁路模型进行仿真分析,验证了理论模型的正确性。仿真优化结果表明,添加隔磁环可以增大磁场强度,但磁场波动较大;一定范围内的磁偏角可增大磁场强度且不会产生磁饱和现象。
[Abstract]:In order to solve the problem of magneto-rheological braking efficiency failure caused by long time electrification of excitation coil in traditional magnetorheological devices, a cylindrical magneto-rheological brake using permanent magnets instead of electric coils as magnetic source is designed. The working principle of the brake is analyzed theoretically and the magnetic circuit model is established. The simulation analysis of the magnetic circuit model of the brake is carried out by using ANSYS, and the correctness of the theoretical model is verified. The simulation results show that the magnetic field intensity can be increased by adding the separated ring, but the magnetic field fluctuates greatly, and the magnetic field intensity can be increased by the magnetic deviation angle in a certain range without the phenomenon of magnetic saturation.
【作者单位】: 重庆理工大学机械工程学院;
【基金】:国家自然科学基金(51175532,11602041) 重庆市基础与前沿研究计划项目(cstc2016jcyj A0417) 重庆理工大学科研启动基金(2015ZD03)
【分类号】:TH134
[Abstract]:In order to solve the problem of magneto-rheological braking efficiency failure caused by long time electrification of excitation coil in traditional magnetorheological devices, a cylindrical magneto-rheological brake using permanent magnets instead of electric coils as magnetic source is designed. The working principle of the brake is analyzed theoretically and the magnetic circuit model is established. The simulation analysis of the magnetic circuit model of the brake is carried out by using ANSYS, and the correctness of the theoretical model is verified. The simulation results show that the magnetic field intensity can be increased by adding the separated ring, but the magnetic field fluctuates greatly, and the magnetic field intensity can be increased by the magnetic deviation angle in a certain range without the phenomenon of magnetic saturation.
【作者单位】: 重庆理工大学机械工程学院;
【基金】:国家自然科学基金(51175532,11602041) 重庆市基础与前沿研究计划项目(cstc2016jcyj A0417) 重庆理工大学科研启动基金(2015ZD03)
【分类号】:TH134
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