@techreport{oai:jaxa.repo.nii.ac.jp:00002056,
 author = {斎藤, 芳隆 and 松坂, 幸彦 and 水田, 栄一 and 莊司, 泰弘 and 松嶋, 清穂 and 田中, 茂樹 and Saito, Yoshitaka and Matsuzaka, Yukihiko and Mizuta, Eiichi and Shoji, Yasuhiro and Matsushima, Kiyoho and Tanaka, Shigeki},
 month = {Mar},
 note = {Lobed-pumpkin 型のスーパープレッシャー気球が高い耐圧性能を発揮できるのは，気球フィルムの局所曲率半径を気球の大きさと独立に小さくできるからである．Lobed-pumpkin 型は頭部尾部の両極を結ぶロードロープの間にフィルムを張り出させることで小さな局所曲率半径を実現している．気球に縦に長い菱形の網目を持つネットを被せ，網目からフィルムを張り出させることでも同様の効果が期待できる．加えて，網目をフィルムの幅と独立に小さくすることができるため，フィルムに要求される強度が小さくなり，軽いフィルムが利用できること，フィルムに余長を設ける必要がなく展開の完全性が期待できること，製作誤差の影響が網目一つに留まり耐圧性能に直接影響しないこと，といったメリットがある．20 microm厚のポリエチレンフィルムの上にケブラーロープで編んだ網を被せた直径3 mの気球を試作し，膨張破壊試験を実施したところ，所期の耐圧性能を発揮することが確認された．今後，順次，気球の大型化を進め地上で膨張試験を実施すると共に，2011年度にはタンデム気球用のスーパープレッシャー気球として飛翔性能試験を実施する予定である．, The lobed-pumpkin shaped super-pressure balloon is able to withstand high pressure due to its small local curvature of the film being independent of the balloon size. It yields the small local curvature as a bulge among adjacent load ropes connected between the top and the bottom fittings. The small curvature is also expected if the balloon is covered by a diamond-shaped net with vertically elongated shape. In addition to the merit of the small curvature, the method using the daimond-shaped net has following merits; 1. the weight of the film is reduced since a weak but light film is able to be used by covering the balloon with a fine mesh net which mesh size is determined without depending on the gore width, 2. the deployment problem known for the lobed-pumpkin balloon can be solved due to its lack of additional films, 3. the capacity of resist pressure is not reduced due to the manufacturing error, since the local distortion of the mesh size does not affect the global balloon shape. We made a small balloon with a 3 m diameter using a 20 microm polyethylene film and a Kevlar net, and performed an inflation test which showed an expected burst pressure. We are going to make larger balloons for the ground inflation tests and launch a larger super-pressure balloon as a part of a tandem balloon system in 2011., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA0065030002, レポート番号: JAXA-RR-10-013},
 title = {菱目の網を被せたスーパープレッシャー気球},
 year = {2011}
}