Choquet integral capacity calculus for health index estimation of multi-level industrial systems

Parameter identification of health indicator aggregation for decision-making in predictive maintenance: Application to machine tool

“…In the field of decision theory, information aggregation is distinguished from information fusion since it is considered to refer to concrete mathematical functions [8]. Such methods have demonstrated their utility in the case of indicator combination for health check evaluation [4]. Aggregation functions (or operators) aim to summarize the information contained in an n-tuple of input values by means of a single representative output value.…”

“…For this multi-level issue of the capacity identification, Ref. [4] developed the identification approach from the principle of bottom-up capacity inference. Indeed, in Ref.…”

“…Indeed, in Ref. [4], data are only available at the component level, which allowed the capacities of the upper element to be inferred from the capacities of the related sub-elements at the lower level. However, the hypothesis of this paper is different since monitored indicators (i.e.…”

“…An essential step in the implementation of such a strategy entails providing system health state to decision-makers to pilot and maintain manufacturing production and equipment. System health necessarily constitutes performance and degradation indicators, rather than raw data, related to physical phenomenon [4]. This requires the transformation of monitored parameters provided by the physical data from sensors, into information represented as indicators.…”

Strategic view of an assets health index for making long-term decisions in different industries

“…In any case, there are also AHI models that are used as tools in the field of Prognostics and Health Management (P.H.M.) (Ludovic et al 2011) (Abichou et al 2012;Abichou et al 2015).…”