Design and Selection of Aluminum Foam for Impact Damper of Legged Lunar Lander
In order to find the appropriate cushion material which can absorb impact of legged Lander on its landing stage, some experiments were carried out to study the quasi-static and dynamic cushion properties of three kinds of aluminum honeycombs and four kinds of aluminum foams. After analyzing stress/energy-strain curves and cushion properties from the experiments, four kinds of characterization methods on cushion materials were put forward. These methods can evaluate the cushion properties comprehensively, and can be used to guide the design of legged Lander’s impact damper. After analyzing and summarizing the cushion properties of tested aluminum honeycomb and aluminum foam with these methods, the coarsehole aluminum foam, with the nominal crushed strength of 0.14-0.15MPa, is proved to have the optimal cushion properties of all seven kinds of samples. The process of designing aluminum foam for impact damper of legged lunar Lander was put forward. Then, the impact damper for trussed lunar landing gear with four primary legs of HIT was designed with the coarse-hole aluminum foam, with the nominal crushed strength of 0.14-0.15MPa.
Lunar Lander aluminum honeycomb aluminum foam cushion properties characterization method
Rongqiang Liu Changjie Luo Zongquan Deng Chuang Wang
School of Mechatronics Engineering Harbin Institute of Technology Harbin,150001,China China Academy of Space Technology Beijing,100094,China
国际会议
深圳
英文
801-806
2008-12-10（万方平台首次上网日期，不代表论文的发表时间）