Abstract
In the case that there are no braces in the column-type truss structures, such kind of structure is equivalent to an unstable mechanism. However, if it is in hanging configuration, it is stable due to the effect of gravitational force; simultaneously, this kind of structure can isolate an apparatus installed at its tip end from the influence of the vibration of the support ceiling, where the hanging truss structure is placed. The relationship between the stress and strain of the shape memory alloy (SMA) material in relatively high temperature condition has a hysteretic loop, which can be adopted for the purpose of vibration attenuation. In this study, dynamic behavior of the hanging truss having SMA wires is discussed, and the optimized placements of the SMA wires are calculated from the viewpoints of vibration isolation and attenuation under the constrained condition of the fixed number of the SMA wires.
