| 摘要 |
According to one embodiment of the present invention, a damper for reducing vibration of a main engine comprises: a housing of which one side is coupled to a hull of a ship, storing a magnetorheological fluid therein; a central shaft of which one end is coupled to a main engine and the other end is exposed to the outside of the housing to be provided as a free end, penetrating the housing to be coupled to the housing; and a piston of which the outer circumferential surface is wound by a coil, provided inside the housing to be coupled to the central shaft. The piston comprises: a coil winding unit where the coil is wound; and a coupling unit coupled to the central shaft. A flow passage allowing a flow of the magnetorheological fluid is provided between the coil winding unit and the coupling unit. |
