着陆器足垫冲击特性模型试验  

Experiment of impact performance of space lander footpad

作　　者：黄晗[1] 李建桥[1] 陈百超[2] 吴宝广 邹猛[1] 

机构地区：[1]吉林大学工程仿生教育部重点实验室,长春130022 [2]中国空间技术研究院,北京100094

出　　处：《吉林大学学报（工学版）》2017年第4期1194-1200,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(50875107);吉林大学国防预研基金项目(201303042);工程仿生教育部重点实验室开放基金项目(K201406)

摘　　要：本文探讨了着陆器在星球表面降落冲击过程中土壤类型和密实度、冲击高度和足垫直径对冲击深度、加速度峰值和冲击力峰值的影响。分析结果表明,土壤类型和密实度对冲击深度的影响最大,其次为足垫直径,冲击高度的影响最小。相较于冲击高度,土壤的密实度对足垫在冲击过程中的加速度峰值的影响较冲击高度的大。建立了足垫冲击力峰值模型,模型的拟合相关系数R2均达到0.9以上,结果表明该模型能较好的预测足垫冲击力峰值。The impact effect emerged during the touch down process of space lander may influence the safety of detection equipment and the reliability of the exploration mission. The effects of soil type and compactness, footpad diameter and impact height on the impact performance of the footpad, including impact depth, peak acceleration and force are investigated. Results show that the soil type and compactness have the maximal influence on the impact depth, followed by footpad diameter, then the impact height. The model of peak impact force was established, and the square of correlation coefficient R2 was above 0. 9, which verifies that the proposed model can accurately predict the footpad peak impact force.

关 键 词：工程仿生 着陆器足垫 冲击特性 模拟月壤 模拟火星壤 

分 类 号：TU435[建筑科学—岩土工程]