Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) : Tokyo Institute of Technology
Tokyo Institute of Technology
Tokai University
Meiji University
National Institute of Polar Research : The Graduate University for Advanced Studies (SOKENDAI)
The Fujikura Parachute Co., Ltd.
Matsushima Consulting
Development of super-pressure balloons for the LODEWAVE is started. A 94 m3 super-pressure balloon NPB01-4 was developed for the first trial production and tested its capability in the pressure resistance and the gas permeability. This balloon is based on the technologies covering the polyethylene balloon with high-tensile net for the pressure resistance and setting a rubber balloon inside the polyethylene balloon for the gas permeability. For the ground inflation test, the balloon withstood the differential pressure of 3,400 Pa and kept positive differential pressure for 289 hours. These capability shows that the balloon can fly at the atmospheric pressure of 85 hPa for 289 hours with a payload of 3 kg. These results gave us the clear prospect for the development of the super-pressure balloon for the LODEWAVE. Following technical subjects to be solved were also found : 1. Development of slightly larger balloon to fly at the altitude of 60 hPa to meet the requirement from the mission, 2. Stable deployment, 3. Durability beyond 289 hours. In addition, for the flight operation, developments of the technique to measure the inner pressure, the launching procedure, and the termination device are necessary. We are going to solve these problems for the LODEWAVE.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
LODEWAVE実験にむけたスーパープレッシャー気球の開発(I)
AA2030024003.pdf
(12.58MB)
