magnetorheological brake based on Modelica

 

 

LI Zhi hua, YUAN Long hao, GONG You ping

 

(College of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China)

 

 

Abstract: Aiming at multi domain coupling modeling of Magnetorheological brake (MRB), the operational principle and the multi domain modeling of MRB were studied. Based on Modelica/MWorks platform and using multi domain unified modeling method, a multi domain unified MRB model was established. The influence on braking performance by structural parameters, magnetic circuit parameters, material characteristics, working gap, rotation speed and field current was analyzed, the braking performance of MRB was simulated under different parameters; Meanwhile, a single disc MRB for mini cars was designed and manufactured, a braking performance test platform was built. The experimental results are basically consistent with the simulation results. The results indicate that MRB model by multi domain unified modeling method has a relatively high accuracy, the modeling and simulation method lays the foundation for further optimization design and product development of MRB, and makes reference to research and development of other magnetorheological device.

 

Key words: magnetorheological brake; multi domain unified modeling; simulation; Modelica