Optimization of test and maintenance of ageing components consisting of multiple items and addressing effectiveness
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Título: | Optimization of test and maintenance of ageing components consisting of multiple items and addressing effectiveness |
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Autor/es: | Martón, Isabel | Martorell, Pablo | Mullor, Rubén | Sánchez, Ana Isabel | Martorell, Sebastián |
Grupo/s de investigación o GITE: | Sistemas Dinámicos y Estadística (SISDINEST) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Matemáticas |
Palabras clave: | Unavailability | Costs | Multi-objective optimization | Ageing | Multiple ítems | Imperfect maintenance | Testing intervals | Maintenance intervals |
Área/s de conocimiento: | Estadística e Investigación Operativa |
Fecha de publicación: | sep-2016 |
Editor: | Elsevier |
Cita bibliográfica: | Reliability Engineering & System Safety. 2016, 153: 151-158. doi:10.1016/j.ress.2016.04.015 |
Resumen: | There are many models in the literature that have been proposed in the last decades aimed at assessing the reliability, availability and maintainability (RAM) of safety equipment, many of them with a focus on their use to assess the risk level of a technological system or to search for appropriate design and/or surveillance and maintenance policies in order to assure that an optimum level of RAM of safety systems is kept during all the plant operational life. This paper proposes a new approach for RAM modelling that accounts for equipment ageing and maintenance and testing effectiveness of equipment consisting of multiple items in an integrated manner. This model is then used to perform the simultaneous optimization of testing and maintenance for ageing equipment consisting of multiple items. An example of application is provided, which considers a simplified High Pressure Injection System (HPIS) of a typical Power Water Reactor (PWR). Basically, this system consists of motor driven pumps (MDP) and motor operated valves (MOV), where both types of components consists of two items each. These components present different failure and cause modes and behaviours, and they also undertake complex test and maintenance activities depending on the item involved. The results of the example of application demonstrate that the optimization algorithm provide the best solutions when the optimization problem is formulated and solved considering full flexibility in the implementation of testing and maintenance activities taking part of such an integrated RAM model. |
Patrocinador/es: | Authors are grateful to the Spanish Ministry of Science and Innovation for the financial support of this work (research project ENE2013-45540-R) and the Doctoral fellow (BES-2011-043906 and BES-2014-067602). |
URI: | http://hdl.handle.net/10045/56127 |
ISSN: | 0951-8320 (Print) | 1879-0836 (Online) |
DOI: | 10.1016/j.ress.2016.04.015 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2016 Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.ress.2016.04.015 |
Aparece en las colecciones: | INV - SISDINEST - Artículos de Revistas INV - GESTA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2016_Marton_etal_RESS_final.pdf | Versión final (acceso restringido) | 486,9 kB | Adobe PDF | Abrir Solicitar una copia |
2016_Marton_etal_RESS_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,08 MB | Adobe PDF | Abrir Vista previa |
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