G1900-1-6 レーザ粉体アブレーション推進の性能測定(宇宙工学部門一般講演,社会変革を技術で廻す機械工学)
詳細
The performance of laser ablation propulsion using fine particles made of polyacetal is investigated. We expected that the absorption efficiency of fine particles was better than one of bulk. 2 sizes of fine particles were used. The momentum coupling coefficient (C_m) and mass loss were measured. The C_m of small, fine particles is larger than one of bulk. Due to fine particles splashing, the mass loss of fine particles was more than 10^2 times larger than that of bulk. In order to decrease the splashed mass, the fine particles were bonded with hydraulic compression. The C_m of compacted fine particles was comparable to that of bulk target.
