典型文献
Soft landing stability analysis of a Mars lander under uncertain terrain
文献摘要：
Safe soft landing of the lander is vital to the Mars surface exploration mission.Analysis and verification of the landing stability under uncertain terrain play an important role in lander design.However,the effect of uncertain terrain is ignored in most existing studies,making the anal-ysis incomprehensive and increasing the risk of landing failure in practice.In this paper,a Mars lan-der with 10 attitude control thrusters is introduced and its dynamics model is then established considering plastic deformation parts and nonlinear contact forces.The effectiveness and accuracy of the dynamics modeling method are verified by experiments with an average relative error of 10％.In order to carry out the dynamics simulation with high-fidelity terrain,a terrain generation method based on statistical data is proposed.Through Monte Carlo simulation under a 50 m x 50 m ran-domly generated landing terrain,the stability of the lander and the effects of attitude control thrus-ters are analyzed.The results show that the failure rate is 5.5％,in which the primary failure forms are overturning and abnormal attitude.When the landing simulations are repeated without thrus-ters,the stable ratio decreases from 94.5％to 90.7％,suggesting the positive effects of attitude con-trol thrusters in improving landing stability under rough terrain.
文献关键词：
中图分类号：
作者姓名：
Yang DONG;Jianzhong DING;Chunjie WANG;Hui WANG;Xueao LIU
作者机构：
School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China;State Key Laboratory of Virtual Reality Technology and Systems,Beihang University,Beijing 100191,China
文献出处：
引用格式：
[1]Yang DONG;Jianzhong DING;Chunjie WANG;Hui WANG;Xueao LIU-.Soft landing stability analysis of a Mars lander under uncertain terrain)[J].中国航空学报（英文版）,2022(11):377-388
A类：
incomprehensive,thrus
B类：
Soft,landing,stability,analysis,Mars,lander,under,uncertain,terrain,Safe,soft,vital,surface,exploration,mission,Analysis,verification,play,important,role,design,However,ignored,most,existing,studies,making,increasing,risk,failure,practice,In,this,paper,attitude,control,thrusters,introduced,its,dynamics,then,established,considering,plastic,deformation,parts,nonlinear,contact,forces,effectiveness,accuracy,modeling,method,are,verified,by,experiments,average,relative,error,order,carry,high,fidelity,generation,statistical,data,proposed,Through,Monte,Carlo,ran,domly,generated,effects,analyzed,results,show,that,which,primary,forms,overturning,abnormal,When,simulations,repeated,without,stable,decreases,from,suggesting,positive,improving
AB值：
0.481855
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