フィンガースカートを装着した小型ACVの傾斜時の静安定性について

抄録

The static pitch stability of small ACVs fitted with finger-type skirts is investigated. A simple method which predicts the static stability and the cushion stiffness is proposed. It yields rough approximations of quantities needed for the initial design. Numerical results of the analysis are presented. We consider two different operating conditions. In one case the skirt is in contact with the ground. In another case the contact does not occur. In both cases the pitch stability decreases with increasing distance of the center of gravity from the skirt hem line and with increasing hover height. However variation of the skirt inclination angle affects the pitch stability in opposite way in two different operating conditions.