A fuzzy approach for IEMI risk analysis of IT-Systems with respect to transient disturbances

Risk analysis with a fuzzy-logic approach of a complex installation

“…The fuzzy approach (Peikert et al, 2015) is divided into two main parts, the fuzzy set theory and the fuzzy logic. The set theory (Zadeh, 1965) allows an object belonging to multiple exclusive sets.…”

“…More flexible classes of membership functions are also possible, an example of the description of the breakdown behavior probability of a system is shown in Peikert et al (2015). As in the classical set theory, fuzzy sets have their own mathematical operators such as union, intersection and complement (Fig.…”

“…Furthermore, it is important to characterize the environment of the investigated infrastructure with their buildings and surrounding areas. In the paper of (Peikert et al, 2015) a fuzzy membership function for the breakdown failure probability (BFP) from (Genender et al, 2011a) is presented and are used to predict the BFP ra , in which "ra" means the random angle of incident, of each subsystem and Mapping of the availability on the probability of occurrence (a) and the cost on the probability of occurrence (b) by Sabath and Garbe (2015).…”

“…the electromagnetic topology (EMT) (Baum, 1980) approach, the fault tree analysis (FTA) (Genender et al, 2011b) and Bayesian networks (BN) (Mao and Zhou, 2010;Mao et al, 2011). To calculate the risk with one of these three methods, it is necessary to acquire all the data for the calculation by many different measurements of its subsystems.…”

“…Based on the introduced theoretical approach published in Peikert et al (2015), the risk estimation with fuzzy is demonstrated for a real complex electronic system and its environment. A compound of different microcontroller circuits are exemplary used as a complex electronic system.…”