The University of South Carolina has been involved in research for the US military for helicopters and rotary aircraft for over 18 years. Majority of this work has been focused on optimizing aircraft uptime and flight readiness by leveraging condition-based maintenance (CBM), more commonly known as predictive maintenance (PM). This type of maintenance differs from other classical styles (reacti...

Industrial robots are designed to endure several years of uninterrupted operation and therefore are very reliable. However, no amount of design effort can prevent deterioration over time, and equipments will eventually fail. Its impacts can, nevertheless, be considerably reduced if good maintenance/service practices are performed. The current practice for service of industrial robots is based o...

This paper presents an introductory review of CBM practice applied in manufacturing industry, focusing the technical constituents within condition monitoring. The empirical base for the study is a case study of two major manufacturing sites in Sweden, complemented with a brief benchmark of data from two reference manufacturing sites from France and Brazil. The data from the main studies were co...

Rolling bearing performance degradation assessment has been receiving much attention for which itscrucial role to realize CBM(condition-based maintenance).This paper proposed a novel bearing performance degradation method based on TESPAR(Time Encoded Signal Processing and Recognition)and GMM(Gauss Mixture Model). TESPAR is used to extracted features which constitute A-matrix. GMM is utilized to...

An effort is underway to develop an Open System Architecture for ConditionBased Maintenance. The architecture development has focused on the definition of a distributed software architecture for CBM. The distributed software model was selected due to the recent emergence of enabling software technologies and the benefits of the approach. In particular, the availability of network connectivity p...

The aim of this paper is to use the online change detection/ isolation methods in the framework of the condition-based maintenance. The purpose is to propose an adequate condition-based maintenance policy to a gradually deteriorating system with change of mode using on-line detection algorithms. The parameters defining the deterioration mode after the change can be unknown. The main purpose is ...

Subject review The model of maintenance is an algorithm of activities which aims at achieving the condition of a technical system that can ensure fulfilling the goals as well as predicting possible equipment breakdowns. Researches point out that corrective maintenance is associated with high cost and considerable time consumption. On the other side there are method of predictive maintenance, wh...

Condition-based Maintenance (CBM) of complex military vehicles or industrial machines presumes the capability to correctly detect faults in components or subsystems. Faults are malfunctions that are observed in the monitoring system. Two types of errors can occur during automated fault detection: (1) missed detections or (2) false alarms. The practical consequence of either type of error is tha...