Review of maintainability design principles and their application to conceptual design

Z. Tjiparuro, G. Thompson

    Research output: Contribution to journalArticle

    36 Citations (Scopus)

    Abstract

    The life cycle cost of a system is, to a large extent, influenced by its maintainability. Besides being a statistical concept, maintainability is a design parameter whose achievement is influenced by known elements and attributes. However, these elements and attributes appear far and wide in literary sources. This paper consolidates these elements and attributes by reconciling and developing previous research efforts. It also shows how these attributes interact with each other to influence major maintainability indices such as mean time to repair (MTTR), maintenance policy, and others. It is also further argued that the conventional tendency of 'handpicking' certain attributes to assess maintainability is to a great extent ad hoc, and it is shown how it could be rationalized. Finally, it is observed that the number and diversity of these requirements makes their assessment during conceptual design impossible because of 'cognitive overload'. Therefore, an approach to maintainability analysis during conceptual design, based on the concept of functional design and maintainability axioms, is proposed.

    Original languageEnglish
    Pages (from-to)103-113
    Number of pages11
    JournalProceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
    Volume218
    Issue number2
    DOIs
    Publication statusPublished - May 2004

    Fingerprint

    Maintainability
    Conceptual design
    Life cycle
    Repair
    Costs

    All Science Journal Classification (ASJC) codes

    • Mechanical Engineering

    Cite this

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    abstract = "The life cycle cost of a system is, to a large extent, influenced by its maintainability. Besides being a statistical concept, maintainability is a design parameter whose achievement is influenced by known elements and attributes. However, these elements and attributes appear far and wide in literary sources. This paper consolidates these elements and attributes by reconciling and developing previous research efforts. It also shows how these attributes interact with each other to influence major maintainability indices such as mean time to repair (MTTR), maintenance policy, and others. It is also further argued that the conventional tendency of 'handpicking' certain attributes to assess maintainability is to a great extent ad hoc, and it is shown how it could be rationalized. Finally, it is observed that the number and diversity of these requirements makes their assessment during conceptual design impossible because of 'cognitive overload'. Therefore, an approach to maintainability analysis during conceptual design, based on the concept of functional design and maintainability axioms, is proposed.",
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