An asteroid landing mechanism and its landing simulation

Author

Zhijun Zhao ; Jingdong Zhao ; Hong Liu

Author_Institution

Harbin Inst. of Technol., Harbin, China

fYear

2012

fDate

11-14 Dec. 2012

Firstpage

205

Lastpage

210

Abstract

An asteroid landing mechanism applied to the micro-gravity and uneven environment of the asteroid is introduced. It consists of landing feet, landing gear, cardan, buffer mechanism, equipment base and anchor system. Static structural analysis of the landing mechanism is carried out to check its strength and stiffness. Dynamic models in vertical and horizontal directions are constructed to estimate the damping parameter of the buffer mechanism and cardan. Then the influence of the friction coefficient and retro-rocket thrust to the landing performance are analyzed. Finally, the landing performance in 1-2 mode, 2-1 mode, and 1-1-1 mode are simulated with the maximum allowable landing velocity. The simulation results show that the landing mechanism is in good performance.

Keywords

anchors; asteroids; entry, descent and landing (spacecraft); gears; anchor system; asteroid landing mechanism; buffer mechanism; cardan; equipment base; friction coefficient; landing feet; landing gear; landing simulation; micro-gravity; retro-rocket thrust; static structural analysis; stiffness;

fLanguage

English

Publisher

ieee

Conference_Titel

Robotics and Biomimetics (ROBIO), 2012 IEEE International Conference on

Conference_Location

Guangzhou

Print_ISBN

978-1-4673-2125-9

Type

conf

DOI

10.1109/ROBIO.2012.6490967

Filename

6490967