形状記憶合金ワイヤを持つトラス構造の動力学的振舞（振動遮断と吸収の最適化の観点から）

抄録

The pseudoelastic characteristic of Shape Memory Alloy (SMA) material can be used to absorb energy as the corresponding hysteretic loop of this kind of material. In this study, we deal with a truss structure having shape memory alloy wires as well as ordinary elastic wires. This kind of truss structure has the capabilities of vibration absorption and isolation because of this conspicuous characteristic of SMA wire. Since SMA wires in slack or small strain condition cannot play a significant role in energy absorption, such SMA wires can be replaceable to ordinary wires from this point of view. On the basis of this consideration, we are able to suppress the number of SMA wires of the truss structure with due consideration to the effect of vibration isolation and absorption. We combine the two kinds of wires in the truss structure in order to obtain the solution of configuration considering both of the effects of absorption and isolation of vibration under the constraint condition of the number of SMA wires.