著者

波多 英寛 日南川 英明 平山 寛 花田 俊也 藤原 和人 廣江 哲幸

出版者

一般社団法人日本機械学会

雑誌

スペース・エンジニアリング・コンファレンス講演論文集 : Space Engineering Conference (ISSN:09189238)

巻号頁・発行日

vol.2009, no.18, pp.107-110, 2010-01-28

---

This study was bursting test of lithium-ion battery using small satellite by overcharge. As a result, the lithium-ion battery exploded by overcharge and confirmed that a flame occurred. The temperature at the time of the bursting was measured, and it was around 150 degrees Celsius. As for the collection fragments, it was measured dimensions, and the distribution of the collection fragments was provided.

著者

眞庭 知成 花田 俊也 河本 聡美

出版者

一般社団法人 日本航空宇宙学会

雑誌

日本航空宇宙学会論文集 (ISSN:13446460)

巻号頁・発行日

vol.58, no.674, pp.83-89, 2010 (Released:2010-03-25)

参考文献数

18

被引用文献数

3 2

---

Since the launch of Sputnik, orbital debris population continues to increase due to ongoing space activities, on-orbit explosions, and accidental collisions. In the future, it is expected that a great deal of fragments will be created by explosions and collisions. Thus, the number of space debris may increase exponentially (Kessler Syndrome). This paper analyzes the Kessler Syndrome using the Low Earth Orbital Debris Environmental Evolutionary Model (LEODEEM) developed at Kyushu University with collaboration from JAXA. The purpose of the study aims at understanding the issues related to space environment conservation. The results provide effective conditions of Active Debris Removal which is one of the space debris mitigation procedures.

著者

鳴海 智博 花田 俊也 河本 聡美

出版者

一般社団法人 日本航空宇宙学会

雑誌

宇宙技術 (ISSN:13473832)

巻号頁・発行日

vol.7, pp.11-17, 2008 (Released:2008-03-11)

参考文献数

13

被引用文献数

6 8

---

Study and long-term prediction of orbital debris environment in low Earth orbits are urgent needs for secure human space development and exploration. This paper introduces some results of Low Earth Orbital Debris Environmental Evolutionary Model (LEODEEM) being researched at Kyushu University with collaboration from JAXA for the purpose of discussing problems of space environment conservation. The model calculates LEO debris evolution (less than 2,000 km altitude of perigee) taking into account collisions, and future launch traffic. It becomes possible to predict a long term LEO environment and investigate future mission hazard evaluation by using this model.

著者

赤星 保浩 花田 俊也 田村 英樹 町田 裕 福重 進也 高良 隆男

出版者

一般社団法人 日本機械学会

雑誌

年次大会講演論文集

巻号頁・発行日

vol.2006, pp.345-346, 2006

---

In order to simulate the debris impacts in geosynchronous orbit, we need the launcher that can launch the projectile under approximately 1[km/sec]. We converted a two-stage light gas gun into a powder gun. In generally, though sabot separation technique is used to launch the projectile of sphere, we can not apply its technique to a our powder gun. So we also conducted the development of new separation technique of projectile of sphere. In particular, we will show with the focus on the new separation technique.

著者

佐々木 晶 山本 哲生 吉川 真 花田 俊也

出版者

日本惑星科学会

雑誌

遊・星・人 : 日本惑星科学会誌 (ISSN:0918273X)

巻号頁・発行日

vol.6, no.4, pp.291-301, 1997-12-25

被引用文献数

1