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Reliability-based, operational performance metrics for ship structures.

机译：基于可靠性的船舶结构操作性能指标。

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摘要

Program management is concerned with reducing or mitigating the risks associated with meeting cost, schedule and performance goals. This dissertation introduces reliability-based performance metrics to mitigate the risk associated with the platform structural performance during design, specifically for Navy surface ships. Structural reliability theory is shown to be applicable for the measurement of the operational performance of platform structural systems in terms similar to those used for other platform systems, such as electrical and mechanical systems. Operational performance of non-structural platform systems is discussed in OPNAVINST 3000.12 (OPNAV 1987) and is transformed in this dissertation to apply to ship structural systems.; The ship structure operational performance measures introduced in this dissertation may be summarized as follows. The operational durability performance measure is the probability that the structure will not require repair over the platform lifetime. The operational dependability performance of the ship structure is defined as the probability that once the mission has started, the structure will successfully resist extreme seaway loads for the mission's duration. The operational capability performance of the ship structure is the ability of the structure to support operational needs such as resisting combat or accidental loads, or supporting dependent systems. The performance metrics included in this dissertation are collectively termed operational metrics and do not include other types of performance such as produceability, efficiency, repairability, or maintainability.; This dissertation introduces and demonstrates that ship structure operational performance can be quantitatively assessed using reliability-based performance metrics in design, and serves as a starting point for achieving a completely quantitative, operational performance-based structural management environment. Ship acquisition management can be significantly improved using these methodologies, as they would allow the platform stakeholders a selection of Figures of Merit, upon which decisions can be based. Current US Navy acquisition strategies do not incorporate quantitative structural performance measures and thereby do not adequately mitigate the programmatic risk of not meeting operational performance top-level requirements.
机译：计划管理着重于降低或降低与满足成本，进度和绩效目标相关的风险。本文引入了基于可靠性的性能指标，以减轻设计过程中平台结构性能相关的风险，特别是针对海军水面舰艇。已显示结构可靠性理论可适用于平台结构系统的运行性能的测量，类似于用于其他平台系统（如电气和机械系统）的术语。非结构平台系统的运行性能在OPNAVINST 3000.12（OPNAV 1987）中进行了讨论，并在本文中进行了转换以应用于船舶结构系统。本文介绍的船舶结构运行性能指标可归纳如下。可操作性耐久性性能度量是在平台生命周期内结构无需维修的概率。船舶结构的操作性依赖性性能定义为一旦任务开始，该结构将在任务持续时间内成功抵抗极端海道载荷的概率。船舶结构的操作性（斜体）性能是指该结构满足作战需求（如抵抗战斗或意外载荷或支持相关系统）的能力。本文所包含的性能指标统称为运营指标，不包括其他类型的性能，例如可生产性，效率，可维修性或可维护性。本文介绍并论证了可以在设计中使用基于可靠性的性能指标对船舶结构的运行性能进行定量评估，并将其作为实现完全定量，基于运行性能的结构管理环境的起点。使用这些方法可以显着改善船舶购置管理，因为它们将使平台涉众可以选择价值因数，从而可以做出决策。当前的美国海军采购策略未包含定量的结构性能指标，因此不能充分缓解不满足运营性能顶层要求的计划风险。

著录项

  • 作者

    Hess, Paul Earl, III.;

  • 作者单位

    University of Maryland College Park.;

  • 授予单位 University of Maryland College Park.;
  • 学科 Engineering Marine and Ocean.
  • 学位 Ph.D.
  • 年度 2002
  • 页码 246 p.
  • 总页数 246
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋工程;
  • 关键词

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