| 仿猫月球着陆缓冲机构设计与缓冲特性研究 |
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| 引用本文： | 王宸,陈金宝,董自瑞,陈姮,袁英男,朱锦耀.仿猫月球着陆缓冲机构设计与缓冲特性研究[J].宇航学报,2022,43(10):1302-1310. |
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| 作者姓名： | 王宸 陈金宝 董自瑞 陈姮 袁英男 朱锦耀 |
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| 作者单位： | 1. 南京航空航天大学航天进入减速与着陆技术重点实验室，南京 211100；2. 上海卫星装备研究所，上海 201109；3. 中国人民解放军陆军工程大学野战工程学院，南京 210001；4. 上海卫星工程研究所，上海 201109 |
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| 基金项目： | 江苏省基础研究计划（自然科学基金）BK20210297；国家自然科学基金项目（52075242，11902157） |
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| 摘 要： | 针对现有被动式铝蜂窝月球着陆器缓冲力波动大、无法重复使用的问题，提出一种基于磁流变缓冲器的仿猫月球着陆缓冲机构。首先，开展了不同高度平台的家猫跳落实验，对其跳落着陆姿态与前/后腿触地冲量进行了分析，探究其缓冲吸能机理；实验结果表明猫后腿的缓冲吸能占比更高。其次，结合猫跳落实验与中国嫦娥系列月球着陆器参数，设计了一种新构型仿猫着陆缓冲机构，并将其与嫦娥着陆器进行了仿真分析对比。结果表明，所提出的仿猫月球着陆缓冲机构，其机体最大加速度降低了18.3%，具有更为出色的着陆性能。其前腿缓冲吸能贡献约为40%，后腿的缓冲贡献度约为60%，与家猫高台跳落实验结果基本吻合，验证了仿猫月球着陆缓冲机构设计方案的合理性。
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| 关 键 词： | 月球着陆器 仿生设计 着陆缓冲 动力学分析 |
| 收稿时间： | 2022-04-12 |
Design and Performance Analysis of the Cat inspired Lunar Landing Mechanism |
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| WANG Chen,CHEN Jinbao,DONG Zirui,CHEN Heng,YUAN Yingnan,ZHU Jinyao.Design and Performance Analysis of the Cat inspired Lunar Landing Mechanism[J].Journal of Astronautics,2022,43(10):1302-1310. |
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| Authors: | WANG Chen CHEN Jinbao DONG Zirui CHEN Heng YUAN Yingnan ZHU Jinyao |
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| Affiliation: | 1. Laboratory of Aerospace Entry, Descent and Landing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China; 2. Shanghai Institute of Space Equipment, Shanghai 201109, China; 3. Field Engineering College, Army Engineering University of PLA, Nanjing 210001, China; 4. Shanghai Institute of Satellite Engineering, Shanghai 201109, China |
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| Abstract: | Aiming at the problem that the buffering force of the existing passive aluminum honeycomb lunar lander fluctuated greatly and could not be reused, the cat inspired lunar landing mechanism based on magnetorheological damper is proposed. Firstly, the jumping and landing experiments of house cats from different height platforms are carried out, and the attitude and the impulse of their front/rear legs touching the ground are analyzed to explore the buffering and absorption mechanism of house cats. The results show that rear legs absorb more than front legs. Secondly, based on the cat jumping experiments and the parameters of China’s Chang’e series lunar landers, a novel cat inspired landing buffering mechanism is designed, simulated and compared. The results show that the maximum acceleration of the proposed cat inspired lander is reduced by 18.3% and has better landing performance. The shock absorption contribution of the front legs is about 40%, and that of the rear legs is about 60%, which is basically consistent with experiments of house cats. The rationality of the proposed lunar landing buffering mechanism design is verified. |
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| Keywords: | Lunar lander Bio inspired design Landing buffering Dynamics analysis |
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