Analysis of local failure modes and subsequent scenarios of global failures of complex technical systems

摘要

Typically the functioning of a complex technical system (CTS) can be represented as a trajectory S_0 in its state space Ψ~N that determines the system's transfer from its initial state IS to the desired end state ES_0 (Fig.1). During their lifetime the components of the CTS are subjected to various combinations of damaging factors ψ_k (k=1,2,...,M): mechanical loading, high/low temperatures, aggressive environments, etc. that determine the load regime H_i (i = 1,2,...n) and could lead to reaching local limit states LS_j (j = 1,2,...,m). Various limit states form a limit state surface in the component's state space ψ~M (ψ~M is contained in Ψ~N).