Abstract:

The key point of dynamic reconfiguration system safety mechanism analysis is the system complex characteristics. The characteristics are reflected in the dynamic change of the functional subject. This change leads to difficulty in obtaining the dynamic reconfiguration system safety mechanism which is the system failure state evolution process leading the system to hazard. This paper first analyzes the multi-state space problem caused by functional subject changing of the dynamic reconfiguration system. Then a hazard guided multifailure analysis method is proposed based on the problem above. This method could help analyze the system safety mechanism, and obtain the development process of system failure state. At last, a study on a dynamic reconfiguration avionic system is conducted to illustrate this system safety mechanism analysis method.