Resonant orbit search and stability analysis for elongated asteroids  

作　　者：Yu-Hang Zhang Ying-Jing Qian Xu Li Xiao-Dong Yang 

机构地区：[1]Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China [2]Beijing Key Laboratory of Nonlinear Vibrations and Strength of Mechanical Structures,Beijing 100124,China

出　　处：《Astrodynamics》2023年第1期51-67,共17页航天动力学（英文）

基　　金：supported partially by the National Natural Science Foundation of China(Grant Nos.11772009 and 12172013);the Beijing Municipal Natural Science Foundation(Grant No.1192002).

摘　　要：Periodic orbits are crucial in facilitating the understanding of the dynamical behavior of elongated asteroids.As a specific type of periodic orbit,resonant orbits can enrich the orbit design method of deep-space exploration missions.Herein,a dipole segment model for investigating the orbital dynamics of elongated asteroids is briefly introduced.A new numerical algorithm named the modified path searching method for identifying spin-orbit resonant orbits is proposed.Using the modified path searching and pseudo-arclength continuation methods,four spin-orbit resonant families for asteroid 2063 Bacchus are obtained.The distribution of eigenvalues and stability curves for the four resonant families are presented.In particular,some critical points corresponding to period-doubling and tangent bifurcations appear in the stability curves.

关 键 词：elongated asteroid dipole segment model spin-orbit resonant orbits stability 

分 类 号：O17[理学—数学]