Open AccessSatellite Dynamic Fault Analysis Method Based on AltaRica Logic Modeling
Author(s) -
H. Wang,
Yifan LI,
Z. Wang,
Jiansheng Wu
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1043/3/032061
Subject(s) - spacecraft , fault tree analysis , fault (geology) , reliability engineering , computer science , reliability (semiconductor) , fault coverage , real time computing , power (physics) , embedded system , engineering , electrical engineering , electronic circuit , physics , quantum mechanics , aerospace engineering , seismology , geology
Modern spacecraft has developed into a complex system integrated multi-task, multi-specialty and multi-information. The cross-linking and coupling between different systems have exposed more and more logic sequence fault caused by non-software and hardware failures. It is difficult to comprehensively and accurately analyze the logical sequence faults of complex systems by using traditional fault tree analysis (FTA), failure mode and effect analysis (FMEA) and other manual methods. Furthermore, the reliability and safety of the spacecraft cannot be effectively guaranteed. In this paper, the dynamic fault analysis of the spacecraft was carried out based on the method of AltaRica logic modeling. The satellite power supply and distribution (PSD) subsystem was taken as an example. A dynamic model of charge and discharge between the solar array, the storage battery and the bus was established. Logical events and sequences of the bus power supply fault was calculated. The results show that this method can effectively complete the dynamic modeling and fault analysis of the spacecraft system, and it has higher analysis capability and efficiency than traditional methods.