Abstract
The variable geometry truss (VGT) is a truss structural system having a number of length-adjustable members. In this study, we make an experiment system of a VGT. We deal with the characteristic of shape-memory alloy (SMA) wires as actuators and mechanical characteristic of a VGT. A heat-temperature relation model of SMA is developed; we formulate the forward kinematic problem of the VGT taking account of the SMA thermo-mechanical behavior. The quasi-static behavior of the VGT is also discussed.
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