パンプキン型のオーバープレッシャー気球 (OPS) について

概要

論文の詳細を見る
Overpressurized Zero Pressure Balloons (OZP) proposed by Simpson is aiming to save the ballast consumption for long duration flights. However, it is pointed out that the circumferential stress acting on the balloon film is the serious problem for bursting balloons when the overpressure is applied. Here, we propose another type of balloons with Pumpkin shape. It is known the stress acting on this balloon is much relaxed, but the balloon volume changes with changing the overpressure. By this reason, it seems this type of balloon may not be efficient to save the ballast consumption. We analyzed some details of this problem, and has shown that the effect of this volume change is not so serious in a practical sense. We propose this Overpressurized Pumpkin Shaped Balloons have better characteristics than OZP, and are promising systems to save the ballast consumption for a long duration flight.
宇宙航空研究開発機構の論文