In this contribution a study is carried out for a defined variation of a moving mass based on magnetorheologicaluids (MRF). Magnetorheological uids consist out of a carrier uid (synthetic-oil) with suspended carbonyliron powder particles and additives. By magnetically induced volume forces the MRF can be controlled, moved,spatially placed and safely attached at moving parts in order to increase the moving mass on the hand. Onthe other hand it can be removed and placed in a resting position, like at a housing for example. Among otherapplication this can be utilized in order to change the eigenfrequency of oscillating systems. After introducingappropriate concepts a simulation-based development of a demonstrating prototype for the movement of theMRF will be shown, considering certain designs of magnetic circuits consisting out of permanent magnets andelectromagnets on the mover and on the stator. The magnetic designs allows the realization and by this theinvestigation of the before mentioned behaviors. For the determination of the movement of the MRF multiphysicalsimulations are carried out. In addition, the developed design is realized to investigate the approachexperimentally, too.
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