摘要
重点研究了无切延迟操作时TD-ERCS系统的周期轨道分布和描述方法,揭示了系统圆对称性退化导致周期轨道退化和消失的现象.定义了周期簇概念和4个周期数来描述TD-ERCS系统的周期轨道.通过建立一个对称性退化的刚性模型,解释了过焦系统是TD-ERCS系统中的周期2对称性退化的结果,并给出了几个短周期.
The researches reported herein lay emphasis upon the expressive method and the distribution of the periodic trajectories in TD-ERCS under the tangent-delay operation m =0, and upon the degeneration and disappearance of periodic trajectories induced by the degeneration of circular symmetry in the system. A periodic trajectory can be expressed with only four period-numbers. It is explained that a cross-focus system in ERCS is from the degenerated symmetry Period trajectory 2 through founding a rigidity model about the degeneration of circular symmetry. Some important short periods are provided.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第11期57-60,共4页
Journal of Southwest University(Natural Science Edition)
基金
国家自然科学基金资助项目(60672041)
西南大学青年基金资助项目(10418020710405)
