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Manufacturing firms continuously strive to increase the efficiency and effectiveness in the maintenance management processes. Focus is placed on eliminating the unexpected failures which cause unnecessary costs and the production losses. Risk-based maintenance (RBM) strategies enable to address the above through the identification of probability and consequences of potential failures whilst providing...
This manuscript focuses on integrating online condition monitoring data directly into the degradation prediction models. This will aid in-service inspection planning in the identification of possible failures in the topside piping equipment of offshore oil and gas (O&G) production and process facilities (P&PFs). The capability of data clustering and data filtration as well as the interpretation...
It is necessary to inspect the piping components of offshore production and process facilities (OP&PFs) to investigate potential failures. This is especially vital for aging OP&PFs in order to make the necessary engineering judgments regarding maintenance and modification (M&M) activities. In an OP&PF, piping plays a vital role within the static mechanical equipment. To analyze the...
Pre-cast concrete components are commonly used for columns, beams, floors, walls and other structural elements in buildings. In general, several quality control assessments must be performed during the production of pre-cast concrete elements. Further, the quality of any cast product depends on material selection, equipment used and workmanship. The quality of surface finish is one feature which gives...
In parameter design, the best settings for the control factors that minimize quality loss in a particular manufacturing operation are determined. In this process, it is possible to carry out minimization of the manufacturing cost, showing sensitivity to noise and quality loss with existing wide tolerances on the noise factors, low-grade components and materials. This manuscript proposes a mathematical...
The NORSOK standard Z-008 suggests a criticality matrix for use in consequence classification, maintenance planning, inspection planning and for prioritizing work orders. When the criticality assessments are carried out using a criticality matrix, suboptimal classification tends to occur as there are no means to incorporate actual circumstances at the boundary of the input ranges or at the levels...
World Class Maintenance (WCM) concept is considered as an integrated approach to perform asset maintenance comprehensible for all participants in an industrial organization. WCM creates opportunities to make the work processes more efficient and effective in a way that these are universally applicable to increase the safety, economy and overall efficiency of the assets. A well-defined WCM work process...
In-service inspection plays a significant role in maintaining the structural integrity of offshore structures. The in-service inspection covers in-situ inspections, evaluation of inspection results, condition assessment of the structure and planning for future inspections. The planning of in-service inspection is a complex process due to the presence of uncertainties; in particular the uncertainties...
The quality of static mechanical systems' integrity control process on aging oil & gas production and process plants (P&PPs) depends on the accuracy of the condition monitoring data. This is especially the case since accurate interpretation of the data could significantly aid the right decision-making at the right time in the right location. However, anomalies have been observed in the historical...
Inspection and maintenance decisions are key elements for assuring the technical integrity of oil and gas (O&G) production plants. In this context, the offshore industry is facing a challenge in replacing experienced personnel with new recruitments. The issue is further exacerbated when the job responsibilities involve high risk related decisions. Therefore, it is important to replace the human...
Global rice production is confronting issues such as climate change and the scarcity of resource availability whilst the world's population continues to increase. The issues and opportunities for sustainable increase of rice production differ from one rice ecosystem to another due to degrees of intensification, crop management operations, and differences in environmental and socio-economic conditions...
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