Finite element linear static structural analysis and modal analysis for Lunar Lander

作者：Chen Jinbao^*; Nie Hong; Zhang Zemei; Li Lichun

来源：Journal of Vibroengineering, 2014, 16(1): 399-406.

• lunar lander
• static analysis
• modal analysis

Lunar exploration is one of the most important projects in the world. A primary objective of the probe in lunar is to soft-land a manned spacecraft on lunar surface. The soft-landing system is the key composition of the lunar lander. In the overall design of lunar lander, the analysis of touchdown dynamics during landing stage is an important work. In this paper, firstly, based on the mechanical theory, a finite element model for the lunar lander is established. Secondly, the linear static structural analysis under particular conditions is performed to determine the nodal stress and displacement distributions and the modal analysis is conducted to obtain the frequencies and their corresponding vibration shapes. Finally, the weakness parts of the structure and the behavior of the system are obtained by analyzing the simulating results, which are beneficial to the optimizing design for the lunar Lander.

• 出版日期2014-2
• 单位上海卫星工程研究所; 南京大学; 上海宇航系统工程研究所