Kazuhiko Yamada

第5回観測ロケットシンポジウム(2023年2月28日-3月1日. オンライン開催) 5th Sounding Rocket Symposium(February 28-March 1, 2023. Online Meeting) 資料番号: SA6000185022 レポート番号: Ⅳ-1

大気球シンポジウム 2022年度（2022年11月7-8日. ハイブリッド開催（JAXA相模原キャンパス& オンライン)) Balloon Symposium 2022 (November 7-8, 2022. Hybrid(in-person & online) Conference (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan 著者人数: 11名 資料番号: SA6000177011 レポート番号: isas22-sbs-011

A research group at Nagoya University, in collaboration with Keio University, the Muroran Institute of Technology, and Institute of Space and Astronautical Science at the Japan Aerospace Exploration Agency (ISAS/JAXA), has successfully demonstrated world’s first operation of Detonation Engine System (DES) in space using the sounding rocket S-520-31, which lifted off from the JAXA Uchinoura Space Center, Japan, at 5:30 a.m. (Japan Standard Time) on July 27, 2021. The DES was equipped with two different types of detonation rocket engines, namely a rotating detonation engine (RDE) and a pulse detonation engine (PDE), which generated 500-N-class axial thrust and 1-Nm-class rolling torque, respectively. The RDE and PDE were tested in space during the ballistic flight of the rocket. In this manuscript, the system-level design of the DES was disclosed. Key point are as follows: the DES consists of an RDE and a PDE, and propellant storage/feed, avionics, instrumentation, and structure subsystems; the overall dimensions are 480 mm in the diameter × 1810 mm in the length. The dry mass was 175 kg, while gross (wet) mass was 181 kg including propellant and pneumatic gases. Commercial off-the-shelf (COTS) components are widely utilized after carefulevaluation and testing, and with redundant architecture.

令和3年度宇宙航行の力学シンポジウム（2021年12月20日-21日. オンライン開催) Symposium on Flight Mechanics and Astrodynamics: 2021 (December 20-21, 2021. Online Meeting) 資料番号: SA6000174024

第3回観測ロケットシンポジウム（2021年3月24-25日. オンライン開催) 3rd Sounding Rocket Symposium (March 24-25, 2021. Online Meeting) PDF再処理の為、2023年3月17日に差替 資料番号: SA6000162018 レポート番号: Ⅴ-4