多构件多失效模式结构一体化可靠性设计理论与方法

项目名称： 多构件多失效模式结构一体化可靠性设计理论与方法

项目编号： No.51275138

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 张春宜

作者单位： 哈尔滨理工大学

项目金额： 84万元

中文摘要： 目前，考虑构件间共因失效相关性和同一构件不同失效模式间耦合失效相关性的复杂结构可靠性分析理论和方法还不完善；考虑上述失效相关性的高精度、高效率的整体结构可靠性优化设计理论和方法还处于空白。本项目研究目的是解决在多构件多失效模式复杂机械结构一体化可靠性设计中，可靠性分析失效相关性的处理、整体可靠性优化设计的计算效率及计算精度等方面的科学问题。主要包括：针对多构件多失效模式结构可靠性分析，建立既可以处理构件之间共因失效相关性，又可以处理构件内部各失效模式之间耦合失效相关性，而且具有工程实用价值的高精度、高效率多重响应面方法；针对多构件多失效模式结构整体可靠性优化设计，研究用基于多重响应面的多级分解协调优化策略，来实现多构件多失效模式结构整体可靠性优化设计和模糊可靠性优化设计。本项目研究成果对促进机械可靠性设计理论的发展具有重要学术意义，并在航空、航天、机械各工程领域的结构设计中有现实应用前景。

中文关键词： 分解协调优化；多重响应面；可靠性优化；智能响应面；模糊可靠性

英文摘要： At present, It is incomplete that reliability design theory and methods in which both common cause failure relativity and coupling failure relativity among fail-ure modes in one component are considered. Theory and methods of efficient and accurate whole reliability optimization, in which failure relativi-ties aforementioned are considered, are still in blank, about mechanical system with more components in which each has more failure modes. The aims of the research are to resolve key science problems on dealing with failure relativity of reliability, computational efficiency and accuracy of whole reliability optimiza-tion, in complex mechanical system with more components in which each has more failure modes, including establishing multiple response surface method, which can resolve both coupling failure relativity among failure modes in com-ponents and common cause failure relativity, with high-accuracy, high efficiency and practical value in engineering, for analyzing reliability of mechanical system with more components in which each has more failure modes, and studying mul-tilevel decomposition-coordination optimization policy, based on multiple re-sponse surface method, to realize whole reliability optimization of mechanical system with more components in which each has more failure modes and fuzzy reliabi

英文关键词： decomposition coordination optimizations；multiple response surface；reliability optimization；intelligent response surface；fuzzy reliability