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An Allocation Technique of MMH/FH for an Aircraft

机译：飞机MMH / FH的分配技术

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Maintenance of any item during its life cycle plays vital role in determining the effectiveness of the item to customer and the total life cycle cost associated with it, in the long run, till a decision on discard is accorded. It is imperative to minimize the MDT [Mean Down Time] of any item/system so as to achieve the on-demand availability, as high as possible. Designing for maintainability in coherence with functionality and reliability requirements would eventually determine the operational effectiveness of the item. Especially, in the case of fighter aircraft, where availability is required to be ensured to the maximum possible, which is one of the critical factors in determining the battle strike capability of the armed forces. In other words, Maintenance Man Hour per Flight Hour [MMH/FH] is required to be as low as possible, so as to ensure the on-demand availability of the fighting platform. In this aspect, every stages of the design should cater for the target MMH/FH. The MMH/FH is required to be allocated from the user requirements to the systems, through sub-systems to the LRUs. This paper is aimed at, presenting one of the methodologies to allocate the MMH/FH goal to the systems/sub-systems/LRUs, considering all the applicable factors of influence, during the design stage. The proposed Allocation Model has been validated, using a typical fighter aircraft, ensuring correctness and completeness.
机译：从长远来看，直到决定弃置之前，任何物品在其生命周期内的维护在决定该物品对客户的有效性以及与之相关的整个生命周期成本方面都起着至关重要的作用。必须最大限度地降低任何项目/系统的MDT [平均停机时间]，以实现按需可用性。与功能性和可靠性要求相一致的可维护性设计最终将决定该项目的运营有效性。特别是对于战斗机，需要最大程度地确保可用性，这是确定武装部队战斗打击能力的关键因素之一。换句话说，要求每个飞行小时的维护工时[MMH / FH]尽可能低，以确保按需提供战斗平台。在这方面，设计的每个阶段都应满足目标MMH / FH。需要将MMH / FH从用户需求分配给系统，再通过子系统分配给LRU。本文旨在介绍一种在设计阶段考虑所有影响因素的将MMH / FH目标分配给系统/子系统/ LRU的方法之一。拟议的分配模型已经使用典型的战斗机进行了验证，确保了正确性和完整性。

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