Characteristics of a magneto-rheological fluid isolator obtained by permanent magnet arrangements

This note focuses on the characteristics of a magneto-rheological (MR) fluid isolator obtained by five permanent magnet arrangements. The basic characteristics of the isolator with various magnetic arrangements were measured from quasi-static tests, and their equivalent models were proposed. The appropriate magnet arrangement for implementing a device that can be used to prevent damage and alignment shift of on-board satellite equipment due to the shock and vibration during lift-off and, at the same time, to isolate disturbances generated by on-orbit momentum- or reaction-wheel operation was investigated.