110 飛行中の温度と空気力により変形するボルテックスジェネレータ(知的材料・構造システム)

概要

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Smart Vortex Generator (SVG) concept has been proposed by the present authors. The SVG is autonomously transformed between an upright vortex-generating position during take-off and landing and a stowed drag-reducing position during cruise by utilizing a function of Shape Memory Alloy (SMA) and temperature difference between the ground and the cruise altitude. In the previous papers [eg. Ikeda et al., ICAS 2006, 4.7.5], a blade spring was hooked to the SMA curved plate to lay flat the SVG at the cruise altitude. In this paper we discuss whether aerodynamic force can be used instead of the blade spring with a simple mathematical model of the SVG. Result reveals that this SVG can be also transformed from the upright vortex-generating position to the drag-reducing position and vice versa by the change in ambient temperature and aerodynamic force only.
2006-11-25