月球着陆器软着陆冲击仿真  

Soft Landing Impact Simulation of Lunar Lander

作　　者：林轻[1] 聂宏[1] 陈金宝[1] 万峻麟[1] 李立春[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《中国空间科学技术》2011年第5期70-75,83,共7页Chinese Space Science and Technology

基　　金：国家863计划(2009AA04Z405);上海空间机构重点实验室(06DZ22105);江苏省普通高校研究生科研创新计划(CXZZ11_0201)资助项目

摘　　要：为提高分析月球着陆器软着陆有效载荷着陆冲击响应的准确性,提出一种基于瞬态动力学的着陆器有效载荷软着陆冲击响应分析方法。根据着陆器全机结构柔性和月壤柔性对有效载荷着陆冲击响应的影响,参照某型着陆器,于MSC.PATRAN环境中建立着陆器全机柔性体模型及月壤柔性体模型,运用瞬态动力学仿真软件MSC.DYTRAN对着陆器软着陆有效载荷着陆冲击响应特性进行了仿真研究。仿真结果与试验结果具有一定的一致性。研究结果表明:使用该方法分析着陆器软着陆有效载荷的着陆冲击响应是准确有效的,能够比较逼真地模拟月球着陆器实际着陆工况。To improve the analysis accuracy of soft landing impact response for lunar lander,a method based on nonlinear transient dynamic analysis was presented.In view of the influence of the flexibility of lunar lander and regolith on impact response of payloads,the flexible models for the lander and regolith were built by MSC.PATRAN based on a certain lunar lander.Then,the transient dynamics software MSC.DYTRAN was used to simulate the payloads impact response of soft landing.It shows that the simulation is consistent with experimental results.The proposed method analyzes the landing impact response for several payloads accurately and simulates the actual landing conditions of lunar lander realistically.

关 键 词：柔性体 瞬态动力学 软着陆 仿真 月球着陆器 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计]