Abstract
Due to the increase in the size of the space structure, the vibration of the beam is easily excited. Passive damping is preferred in space-limited space. A passive damping system using giant magnetostrictive material is an element that enables passive damping. The giant magnetostrictive material has the property of changing the magnetic flux density around the material when a force is applied. At this time, by winding a coil around the material, current flows by electromagnetic induction. Furthermore, it is possible to consume energy by connecting a resistor or the like to the circuit. This series of flows enabled passive damping, which has been demonstrated in previous studies. In this paper, we propose efficient use of passive damping system using giant magnetostrictive material. When a passive damping system using a giant magnetostrictive material is attached to the vibration damping target, it was found that fixed point appears in the graph of vibration magnification. Optimum tuning and optimum attenuation are performed using this fixed point. As a result, it was found that there were optimum usage conditions, and the behavior and concrete effect of the system when using this system are shown in the graph.
