Maintenance is essential in keeping wind energy assets operating efficiently. With the development of advanced condition monitoring, diagnostics and prognostics, condition-based maintenance has attracted much attention offshore industry recent years. This paper models various activities their impacts on degradation performance turbine components. An integrated strategy corrective maintenance, i...

Most existing condition based maintenance (CBM) work reported in the literature only focuses on determining the optimal CBM policy for single units. Replacement and other maintenance decisions are made independently for each component, based on the component’s age, condition monitoring data and the CBM policy. In this paper, a CBM optimization method is proposed for multi-component systems, whe...

Opportunistic maintenance has been an essential part of all systems-maintenance, implicitly if not explicitly. However, as systems become more expensive and complex, the decisions involving opportunistic maintenance activities become more complicated. In this paper, we discuss a few issues that arise while carrying out the opportunistic maintenance, and try to resolve them with the help of a po...

In semiconductor fabrication, dynamic interactions among chamber deterioration, operation characteristics, and wafer yield necessitate an intelligent decision making policy for maintenance. However, only simple heuristic rules for maintenance scheduling are currently employed in semiconductor fabs. Therefore, there is a clear need for a more formal framework for maintenance decision making. The...