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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 斎藤, 芳隆後藤, 健中篠, 恭一古田, 良介堂本, 航大秋田, 大輔松嶋, 清穂田中, 茂樹島津, 繁之Saito, YoshitakaGoto, KenNakashino, KyoichiFuruta, RyosukeDomoto, KodaiAkita, DaisukeMatsushima, KiyohoTanaka, ShigekiShimazu, Shigeyuki
- Author Heading
- Publication, Distribution, etc.
- Publication Date
- 2014-03-31
- Publication Date (W3CDTF)
- 2014-03-31
- Alternative Title
- Development of a super-pressure balloon with a diamond-shaped net (BS13-04)
- Periodical title
- 宇宙航空研究開発機構研究開発報告: 大気球研究報告 = JAXA Research and Development Report
- No. or year of volume/issue
- JAXA-RR-13-011
- Volume
- JAXA-RR-13-011
- Pages
- 35-60
- ISSN (Periodical Title)
- ISSN : 1349-1113
- Text Language Code
- jpn
- Target Audience
- 一般
- Note (General)
- 出版タイプ： NA気球に高張力繊維の菱形の目の網をかぶせる手法を用いて、現状のゼロプレッシャー気球と同程度の重量のスーパープレッシャー気球の開発を進めている。2012 年に実施したB12-02 実験において発生した飛翔環境下での耐圧性能の劣化への対策として、フィルム長と網線長を一致させた直径3 m の気球を開発し、地上での常温膨張試験、-30度Cでの低温膨張、破壊試験を通じて改良が有効であることを確認した。2013年5月25日に、同型のSP 気球と2 kg のゴム気球を連結させた超小型タンデム気球システムの飛翔試験として日昇をまたがって飛翔させる実験を実施し、-60 ～-50度Cの低温環境下で耐圧性能6,280 Pa を有すること、2時間にわたり5,600 Pa の差圧に耐えること、地上実験でも観測されていた0.4 mm2 の小さな穴からのガス漏れが発生していることを確認した。また、日昇後の上昇速度は0.4m/sec と緩やかであり、気球内ガスの温度上昇の時定数3,000 秒で、20度Cの上昇が発生することが判明した。この試験を通じて、改良を加えた気球が成層圏での飛翔にあたって、微少なガス漏れを除き、問題がないことが確認された。A light super-pressure balloon of which weight will be comparable to the weight of the zero-pressure balloon has been developed using a method to cover a balloon with a diamond-shaped net of high-tensile fibers. To solve a stress concentration problem found through the flight test of B12-02 in 2012, a new 3-m balloon setting the meridian length of the balloon gore film equal to the length of the net was developed. Through the ground inflation tests at room temperature and at -30 C , it was confirmed that the problem was solved and the balloon had sufficient capacity for the resist pressure. On May 25, 2013, a super-pressure balloon of the same model was launched in the tandem balloon configuration with 2 kg rubber balloons. It stayed at a level altitude before and after the sunrise. It was confirmed that the balloon could withstand the maximum differential pressure of 6,280 Pa, could withstand the differential pressure of 5,600 Pa for 2 hours, and there was a small gas leak through a hole with an area of 0.4 mm2 which was also found in the ground leakage test. It was also found that the ascending speed after the sunrise was gentle with a low speed of 0.4 m/sec, and the gas temperature rose by 20 C with a time constant of 3,000 sec. These results indicated that the improvement was adequate and there was no problem for the super-pressure balloon to fly in the environment of the stratosphere except for the problem of the small gas leak.形態: カラー図版ありPhysical characteristics: Original contains color illustrations資料番号: AA0062303002レポート番号: JAXA-RR-13-011
- Periodical Title (NCID)
- AA1192675X
- Data Provider (Database)
- 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
- Original Data Provider (Database)
- 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ