Sparing analysis-a multi-use planning tool

Proceedings., Annual Reliability and Maintainability Symposium Pub Date : 1989-01-24 DOI:10.1109/ARMS.1989.49553

A. Myrick

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引用次数: 5

Abstract

The applicability of the author's PC based sparing model to a typical supply system is shown with emphasis on the analysis as a tool for planning warranty costs, maintenance, the number of service personnel and level of training requirements, factory/repair facility workloads, and capital investment. This additional information is valuable in the R&M (reliability and maintainability) and logistics areas and is available early on in the development process. The model, which is based on a modified Poisson probability distribution, computes the number of initial spares required in inventory to assure at a preselected probability (confidence level) that a spare is available. It takes into account the number of units in service, failure rate for each replaceable unit, average turnaround time for repair or time to secure a replacement unit, confidence level selected for having a spare available, the support period, operational time, duty cycle, and whether units are screened before being returned for repair. The model is applicable to simple systems or to complex, multilevel systems and works equally well for repairable or discardable parts.<>

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节约分析——多用途规划工具

作者的基于PC的节约模型适用于典型的供应系统，并强调将分析作为规划保修成本、维护、服务人员数量和培训要求水平、工厂/维修设施工作量和资本投资的工具。这些附加信息在R&M(可靠性和可维护性)和物流领域是有价值的，并且可以在开发过程的早期获得。该模型基于改进的泊松概率分布，计算库存中所需的初始备件数量，以确保在预先选择的概率(置信度)下有备件可用。它考虑了正在使用的单元数量、每个可更换单元的故障率、维修的平均周转时间或确保更换单元的时间、可用备件选择的置信度、支持期、运行时间、占空比以及在返回维修之前是否对单元进行了筛选。该模型既适用于简单系统，也适用于复杂的多级系统，对于可修复或不可丢弃的部件也同样适用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings., Annual Reliability and Maintainability Symposium

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