Design and verification of the landing impact attenuation system for Chang’E-3 lander

Landing impact attenuation system is one of the important segments for Chang'E-3 lander, which ensures Chang'E-3 lander a stable and reliable landing at touchdown, and a successive support for a long run on the lunar surface. In this paper, the primary requirements, chief factors of the system design and final scheme are introduced. Verification aspects, formulation and results of both experiment and simulation are presented. The successful landing indicated that the attenuation system design and test for Chang'E-3 lander is rational and reliable. The system met the landing requirements completely.