导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2014, Vol. 35 ›› Issue (2): 541-554.doi: 10.7527/S1000-6893.2013.0396

• Material Engineering and Mechanical Manufacturing • Previous Articles     Next Articles

Digital Design and Landing Performance Influence Factors of Deep Space Lander

CHEN Jinbao1, NIE Hong2, WAN Junlin3   

  1. 1. College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    3. The Ttwenty-eighth Research Institute of China Electronic Technology Group Corporation, Nanjing 210016, China
  • Received:2013-07-01 Revised:2013-09-20 Online:2014-02-25 Published:2013-10-15
  • Supported by:

    National Natural Science Foundation of China (51105196); National Natural Science Foundation of Jiangsu (BK2011733); NUAA Fundamental Research Funds (NS2013086)

Abstract:

Symmetrical four-legged suspension lunar lander as the research object, a six-degree-of-freedom dynamic model is established and the model of the lunar soil friction coefficient is improved. Based on the above dynamic models, six degrees of freedom dynamic analysis program on lunar lander soft-landing is applied to analyze soft-landing performance of total lunar lander. The parameters about lunar surface equivalent elastic coefficient, frictional coefficient, inclination angle and so on are studied to analyze the influence on landing performance of the lunar lander. The results show that landing and buffering performance is influenced dramatically on the above factors, and reasonable parameters are chosen to relieve effectively the impact overload of lunar lander soft-landing.

Key words: lander, dynamics, digitalization, lunar soil, buffering

CLC Number: