Space debris studies in Tohoku University are introduced. Firstly, we talk about the use of a hollow cylindrical mesh for an electrodynamic tether to improve its survivability in space. The proposed tether is expected to be used in space missions to remove uncontrollable satellites in orbit. Although the mass of the hollow cylindrical tether is the same as that of a conventional solid and cylindrical (i.e., round) tether, it has a larger diameter, which improves its survivability. To investigate the damage to the proposed hollow cylindrical mesh tether by debris impact, hypervelocity impact experiments were performed by using a two-stage light gas gun. The experimental results confirmed the potentially increased survivability of the proposed hollow cylindrical mesh tether compared to the conventional tether. Secondly, we talk about the luminescent color modulation caused by debris impact. An air-leakage detection system for space-debris impact will be constructed with photochemical materials. We will apply the materials to the pressurized chamber, so that it becomes luminescent due to the rapid increase in temperature and pressure.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
Space debris studies in Tohoku University: structures of debris removal tethers, luminescent color modulation
AA1630052030.pdf
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