@inproceedings{oai:jaxa.repo.nii.ac.jp:00007527, author = {大槻, 真嗣 and 久保田, 孝 and 坂東, 信尚 and 矢野, 創 and 樋口, 健 and 卯尾, 匡史 and 橋本, 樹明 and Otsuki, Masatsugu and Kubota, Takashi and Bando, Nobutaka and Yano, Hajime and Higuchi, Ken and Uo, Masashi and Hashimoto, Tatsuaki}, book = {第16回アストロダイナミクスシンポジウム講演後刷り集 2006, Proceedings of 16th Workshop on JAXA Astrodynamics and Flight Mechanics}, month = {Mar}, note = {小惑星探査機「はやぶさ(MUSES-C: Asteroid Sample-return Spacecraft)」は2005年11月に小惑星イトカワへ2度に渡ってタッチダウンを行った。この論文では、探査機下部に取り付けられたLRF(Laser Range Finder)から得られた高度データに基づいて、はやぶさ探査機のタッチダウン時の挙動を解析した。まず、探査機に作用する外力を整理し、イトカワの重力を推定した。そして、6自由度の剛体運動モデル、サンプラホーンならびにソーラパネルの柔軟体モデルを構築し、それらを結合して、はやぶさの探査機ダイナミクスモデルとした。構築したモデルで1回目のタッチダウン挙動を再現し、実際に得られたデータとの比較検討を通じてその妥当性を確認した。, The asteroid exploration spacecraft 'Hayabusa (MUSES-C: Asteroid Sample-return Spacecraft)' tried to touch down twice on the asteroid 'Itokawa' in November 2005. In this paper, the motion of the Hayabusa spacecraft during the first touchdown is analyzed on the basis of the altitude data derived from the LRF (Laser Range Finder) sensors implemented at the bottom of the spacecraft. The environmental interaction for the Hayabusa spacecraft is also considered and the gravity of Itokawa in the vicinity on where Hayabusa touched down is estimated. Further, in the numerical calculation, the motion of Hayabusa spacecraft is reproduced by the combination of the motion of the rigid body with six degrees of freedom, reactive force of the sampler horn against the Itokawa surface and vibration of the solar panels. The validation of the numerical model is obtained by comparing the simulation result with the data measured by the LRF sensors., 資料番号: AA0063481026}, pages = {145--150}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)}, title = {Analysis on touchdown dynamics of Hayabusa spacecraft}, year = {2007} }