Surface conditions of planetary bodies and penetration conditions of a penetrator

Autor:	Fujimura, Akio, Tanaka, Satoshi, Shiraishi, Hiroaki
Jazyk:	angličtina
Rok vydání:	2006
Předmět:	ディープインパクトミッション planetary geology penetration penetration depth impactor regolith レゴリス lunar surface 機械的性質 月表面 penetrator 惑星地質学 mechanical property ペネトレータ インパクタ 惑星表面 貫入 貫入深度 planetary surface Deep Impact Mission
Zdroj:	第38回月・惑星シンポジウム = Proceedings of the 38th ISAS Lunar and Planetary Symposium. :155-158
Popis:	The empirical penetration equation of Young (1997) is examined by using the experimental and numerical simulation data on the LUNAR-A (Lunar Exploration Satellite) penetrator. The data show a good correlation with the predicted penetration depth and experimentally measured depth on several penetrators with different size, weight, and shape of head, though the mechanical properties of the target material are well controlled and restricted as the lunar simulant regolith. When we apply the empirical penetration equation to a unknown surface of a planetary body, we may make a prediction of penetration depth with a factor of 20 for a desired penetrator. If the surface of the planetary body is covered by regolith, the quality of the prediction may be enhanced to be of a factor five or so. 資料番号: AA0063350042
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=jairo_______::25bff2513d7e9edc2866a474f7db0a8e http://id.nii.ac.jp/1696/00020551/ Zobrazit plný text záznamu