南京航空航天大学学报（英文版）2023，Vol.40Issue(3)：354-366,13.DOI:10.16356/j.1005-1120.2023.03.010
极端温度下月球高速着陆机构与泡沫金属断裂的碰撞分析
Collision Analysis of Lunar High-Speed Landing Mechanism and Foam Metal Fracture Under Extreme Temperature
摘要
Abstract
The stress and strain of the components composed of prefabricated grooves,warheads,foam titanium,foam aluminum and the detector are calculated when they rush to the moon surface rocks at a speed of 130 m/s and under 1/6 gravity of earth.The foam metal in the component can bear the force of the detector and provide the recoil force.The stress of preformed groove and warhead is 1 200-2 000 MPa,while the stress of foam titanium and foam aluminum is 10 MPa and 1 MPa,respectively,with significant reduction.The stress of foam titanium is reduced to 1％,and that of foam aluminum is reduced to 1 ‰.The component has also undergone a series of different angle collision tests at low temperatures(-182.85℃)and high temperatures(127.15℃),and the detector can still operate normally.关键词
太空探索/碰撞响应/极端温度/泡沫金属/抗冲击性Key words
space exploration/collision response/extreme temperature/foam metal/impact resistance分类
航空航天引用本文复制引用
徐健,李强,杨臻,孙玉成,李中明..极端温度下月球高速着陆机构与泡沫金属断裂的碰撞分析[J].南京航空航天大学学报（英文版）,2023,40(3):354-366,13.基金项目
This work was supported by the Na-tional Natural Science Foundation of China(No.51175481) （No.51175481）
the Hubei Sannong Science and Technology Talents Project 2020-2021. （）
