Abstract
The self-decoupling magnetorheological (SDMR) damper is a type of sensitive device withdistinct damping characteristics at different amplitudes. This paper first describes theindependently designed SDMR damper and its magnetic circuit structure. Then, throughthe combination of finite element analysis and experimental study, it discusses the magneticflux leakage (MFL) of the magnetic circuits of the main piston and the sub-piston. Theresults show that large errors exist between the finite element analysis and theexperimental results. Thus, in the magnetic circuit design phase, the impact of MFL shouldbe properly considered. For the SDMR damper in this paper, setting the MFL factor at 2.2for the magnetic circuit of the main piston and at 2.4 for the magnetic circuit of thesub-piston, the finite element simulation results and experimental results are in goodagreement, and the results can be used as a reference for the design of similar dampers.
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