基于多级铝蜂窝缓冲器的新型着陆器性能分析  

Performance Analysis of a New Lander Based on Multi-level Aluminum Honeycomb Buffer

作　　者：贾山 钱佳程 陈金宝[1,2,3,4] 周金华 徐雅男 张胜 肖赟辰 陈姮 JIA Shan;QIAN Jiacheng;CHEN Jinbao;ZHOU Jinhua;XU Yanan;ZHANG Sheng;XIAO Yunchen;CHEN Heng(School of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China;Key Laboratory of Deep Space Star Catalog Exploration Agency Technology Ministry of Industry and Information Technology,Nanjing 210016,Jiangsu,China;Aerospace Enters the Key Laboratory of Deceleration and Landing Technology Aerospace Science and Technology Group,Nanjing 210016,Jiangsu,China;Joint Laboratory of Intelligent Perception and Nondestructive Landing Technology,Nanjing 210016,Jiangsu,China)

机构地区：[1]南京航空航天大学航天学院,江苏南京210016 [2]深空星表探测机构技术工信部重点实验室,江苏南京210016 [3]航天进入减速与着陆技术航天科技集团重点实验室,江苏南京210016 [4]智能感知与无损着陆技术联合实验室,江苏南京210016

出　　处：《上海航天（中英文）》2021年第2期87-97,130,共12页Aerospace Shanghai（Chinese&English）

基　　金：国家自然科学青年基金(11902157);南京航空航天大学青年科技创新基金(NS2018052);“十三五”民用航天项目;北京空间机电研究所开放课题;载人航天领域预先研究资助(040202);江苏省基础研究计划(BK20180417)。

摘　　要：在未来可行走探月着陆器的总体设计中,如何降低着陆过程中的冲击载荷,实现柔顺落震以保护本体结构和有效载荷的安全,是一项重要内容。本文基于所设计的可行走着陆器整机构型对缓冲驱动一体化缓冲器优化分析。首先,对3种不同规格的铝蜂窝材料分别进行静压力试验,利用试验数据和蜂窝有效吸能模型对多级铝蜂窝的搭配方式进行优化;然后,采用Ansys/Ls-dyna对优化后的三级铝蜂窝进行仿真和试验验证,与传统的两种铝蜂窝材料的缓冲器相比具有一定的柔顺性和安全性;最后,利用Adams软件进行整机仿真验证。验证结果显示:着陆器本体质心过载曲线平滑柔顺,可为我们后续开展的载人登月、月表基地建设等工程实施提供技术支撑。One of the crucial goals in the overall design of a walkable lunar lander is to reduce the impact load during landing and achieve a compliant drop so that the body structure and payload can be well-protected.In this paper,a walkable lander is designed,and the energy absorption characteristics of the energy-absorbing/driving integrated buffer of the lander are analyzed.First,three types of aluminum honeycomb materials with different specifications are selected for static pressure tests.Second,the obtained data are plugged into the effective energy-absorption model of honeycombs to optimize the collocation of multi-level aluminum honeycombs.The simulation and verification with ANSYS/LS-DYNA suggest that compared with two traditional aluminum honeycomb material buffers,the optimized three-level honeycomb buffers have better compliance and safety.Finally,the ADAMS software is used to simulate and confirm the overall lander.The results show that the overload curve exerted on the mass gravity center is smooth and supple.The work in this paper can provide technical support for future manned lunar landing and lunar surface base construction.

关 键 词：可行走着陆器 缓冲器 吸能模型 多级铝蜂窝 柔顺性 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计]