学会等発表 - 平山　寛

月の縦孔内の多点懸垂移動システムの力学的考察

鈴木岳大, 平山寛

第62回宇宙科学技術連合講演会  (久留米)  2018年10月  -  2018年10月    日本航空宇宙学会

This paper proposes a new method to descend into lunar hole for an unmanned explorer. The vertical holes of about 50 m diameter were found on the lunar surface in 2009. A candidate method to explore is tether suspended descent, but single tethered probe is limited only along vertical movement. So, we propose a lunar hole explorer that has a descending probe suspended by tethers from two or three points on a rim of the hole. The probe can move in two or three dimensionally by controlling length of each tether so that has advantage for geological survey on wall in the hole at close range. However it has limitation on movable region. First, the movable region was formulated from equilibrium of forces. Next the region is calculated and visualized assuming values of design parameters. Finally descending trajectories are proposed within the region.

第13回能代宇宙イベントにおける実践的宇宙教育の成果と今後の展望

堤明正, 平山寛, 和田豊, 前田恵介, 秋山演亮

日本航空宇宙学会北部支部2018年講演会ならびに第19回再使用型宇宙推進系シンポジウム  (仙台市)  2018年03月  -  2018年03月    日本航空宇宙学会

The 13th Noshiro Space Event was held in Noshiro city, Akita prefecture from 17 August to 24 August, 2017. Main purpose of this event is to provide opportunity of practical space education. Noshiro Space Event consists of hybrid rocket launches, a cansat competition, and a model rocket competition. In this paper, result of these practical educations has been reported.

第13回能代宇宙イベントにおける実践的宇宙教育の実施結果と将来展望

堤明正, 平山寛, 和田豊, 前田恵介, 秋山演亮

第61回宇宙科学技術連合講演会  (新潟市)  2017年10月  -  2017年10月    日本航空宇宙学会

The 13th Noshiro Space Event was held in Noshiro city, Akita prefecture from 17 August to 24 August, 2017. Main purpose of this event is to provide opportunity of practical space education. Noshiro Space Event consists of hybrid rocket launches, a cansat competition, and a model rocket competition. In this paper, result of these practical educations has been reported.

Attitude Control Simulator for the Small Satellite and Its Validation by On-orbit Data of QSAT-EOS

Masayuki Katayama, Yuta Suzaki, Shigeru Aso, Hiroshi Hirayama

AIAA/USU Conference on Small Satellites  (Logan, Utah, USA)  2017年08月  -  2017年08月    AIAA/USU

The role of the microsatellites has become significant due to the progress of performance and miniaturization of the electronics devices. For the purpose of earth observation the constellation flight of the microsatellites has made it possible to obtain the continuous data of the designated location and it is expected that the data be utilized in wide variety of the filed such as science, agriculture, industries, and climate monitoring. As the microsatellites take the LEO, the time of observation on the designated location is limited. Therefore the agile and precise pointing performance is required so as the attitude control accuracies. This paper presents the development of the attitude control simulator for the microsatellite for the use of design of the attitude control subsystem. Quaternion feedback control is proved to be effective and stable. Then the on-orbit data of the QSAT-EOS (Kyushu Satellite for Earth Observation System Demonstration) is analyzed to confirm the effectiveness of the quaternion feedback control. QSAT-EOS was launched in 2014 and now is in the deorbit phase after two year operation. Results of the on-orbit data analysis have suggested some necessities of improvement of the simulator and control algorithm which are the future subject.

超小型衛星QSAT-EOS（つくし）の宇宙工学教育利用

平山寛, 麻生茂, 森下和彦, 藤崎清孝, 八坂哲雄, 大西俊輔

第60回宇宙科学技術連合講演会  (函館)  2016年09月  -  2016年09月    日本航空宇宙学会

QSAT-EOS (Tsukushi) is a micro satellite which was developed by universities and local industries in Kyushu area of Japan. It was launched in November 2014 from Russia. Since then, the satellite is being operated mainly by staffs and volunteer students of Kyushu university. This activity motivates the students to study special knowledge about astronautics and satellite communication even before they learn them in ordinary courses. This paper introduces an organization of the operation group, then remarks on education effect to the students.

超小型衛星QSAT-EOS（つくし）の姿勢制御結果の考察

平山寛,八坂哲雄,日南川英明,桜井晃,麻生茂,森下和彦

第60回宇宙科学技術連合講演会  (函館)  2016年09月  -  2016年09月    日本航空宇宙学会

QSAT-EOS (Tsukushi) is a micro satellite which was developed by universities and local industries in Kyushu area of Japan. It was launched in November 2014 from Russia. Primary mission of the satellite is optical imaging of Earth surface. Therefore, it has 3-axes attitude control capability in order to point a camera to a subject area also point its antenna to a ground station. The satellite succeeded to control its attitude in orbit. This paper introduces attitude control system of QSAT-EOS, then shows some results of attitude controlling.

QSAT-EOS（つくし）打ち上げ状況

麻生茂, 平山寛, 森下和彦, 藤崎清孝, 谷泰寛, 八坂哲雄, 大西俊輔

九州小型衛星の会(QSSF)平成27年度研究会  (福岡市)  2016年03月  -  2016年03月    九州小型衛星の会

九州大学における小型衛星QSAT-EOS（つくし）の運用体制

平山寛

第2回小型衛星の科学教育利用を考える会  (平塚市)  2016年03月  -  2016年03月    小型衛星の科学教育利用を考える会