面向产品综合设计的故障知识本体研究

以满足产品的性能与可靠性维修性保障性(RMS)综合设计需求为目标，对产 品设计过程中如何预防故障，定位故障及故障维修的相关概念进行分析、总结和归纳，提出 了以故障知识为核心，面向产品综合设计的知识本体框架，该框架将相关概念划分为四层进 行描述，即产品层、故障基本概念层、故障扩展层、故障应对层。利用本体论方法对相关的 核心概念进行了形式化的定义，并给出了基本的故障知识本体和设计应对本体结构。最后以 挑战者号航天飞机的失事为例，应用本文建立的故障本体较好地表达了航天飞机故障过程及 应对的改进措施，验证了该方法的可行性。

Ontology-based Failure Knowledge Modeling for Integrated Product Design

In view of the integration design of performance, reliability, maintainability and supportability (IPRMS), the concepts concerning on failure prevention, fault localization and failure maintenance were analyzed and summarized. Then an ontology-based knowledge framework for IPRMS was proposed based on the kernel of failure knowledge, and related concepts were divided into four layers, that is products level, essential fault/failure concepts level, failure extendibility level and failure response level. Related essential concepts were defined in formalized style, and the basic framework of failure knowledge ontology and design response ontology were presented. Finally, a case study of the Space Shuttle Challenger Accident was presented to demonstrate the ability of failure ontology to depict knowledge of product failure and design improving,which shows that our methods are feasible and satisfactory.