Contact analysis of flexible beam during space docking process

摘要

This paper mainly focuses on the impact contact problem during docking process of flexible probe. The docking dynamic model based on flexible probe is developed with the help of Lagrange analytical method. The modal equation of flexible rod is derived with the effect of the rigid counterweight considered. The contact models of docking impact in both normal and tangential directions are presented in detail. The time history of impact contact force, the shape and size of contact area, the distribution of contact stress and local deformation, and the effect of structural flexibility to the contact surface are discussed based on the theoretical model. Moreover, the ground-based docking impact experiment is conducted to verify the theoretical results.