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Industry 4.0 and Smart Maintenance represent a great opportunity to make manufacturing and maintenance more effective, safer, and reliable. However, they also represent massive change and corresponding challenges for industrial companies, as many different options and starting points have to be weighed and the individual right paths for achieving Smart Maintenance need to be identified. In our paper, we describe our approach to evaluating maintenance organizations in a case study for the oil and gas industry, developing a shared vision for the future, and deriving economical and effective measures. We will demonstrate our approach, by showcasing a specific example from the oil and gas industry, where a need for action on HSE-relevant critical flanges in the company's piping systems was identified. We describe the steps, that were taken to identify the need for action, the specifications of the project and the criticality analysis of the piping system. This resulted in the derivation of a digitalization measure for critical flanges, which was first commercially analyzed and then the flanges were equipped with a continuous monitoring solution. Finally, a conclusion is drawn on the performed procedure and the achieved improvements.
Operating and maintenance costs, which account for 25% of total costs, are a powerful lever in reducing the electricity generation costs of onshore wind turbines (WT). These costs can be reduced by a condition-orientated maintenance approach. A condition-oriented maintenance strategy optimizes maintenance tasks by executing them with varying levels of detail and focus depending on the system and life cycle phase. OEMs evaluate operating data and structured data from the maintenance history for this purpose, but SMEs lack the capacity for this evaluation. In particular, the unstructured descriptive comments in the maintenance reports generated by service technicians remain unused. In this work, we propose a framework to incorporate this information from the maintenance reports along with the status records from the SCADA system. For this purpose, a mechanism has to be developed to make the contents of the service reports machine-evaluable. The mechanism used in this approach is an ontology, which enables the codification of implicit knowledge such as the experience knowledge of the service technicians. The ontology’s purpose is to link status codes of onshore WT with historical maintenance reports and thereby enabling an automated evaluation. Using an API (application programming interface), the ontology can be integrated into an algorithm to analyse status data and maintenance documents. In this manner, recommendations for actions can be derived and maintenance tasks can be optimized.