Reliability of Structural Systems

结构系统的可靠性

• 批准号: 8518005
• 负责人: Alfredo H-S. Ang
• 金额: $ 8.25万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-01-15 至 1988-08-15
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8518005&HistoricalAwards=false
• 关键词: Reliability; Structural; Systems

The available methods for reliability analysis of structural systems are primarily based on the on the failure mode approach (FMA). Shortcomings of the FMA limit its wider applications. To facilitate the implementation of reliability theory to practical structures, alternative methods, based particularly on the recently proposed stable configuration approach (SCA) will be developed and extended. Approximations to the SCA that are necessary for practical purposes will also be investigated and developed. The reliability of continuous systems requires stochastic methods associated with discretized systems (e.g., by finite elements); a Galerkin formulation and its extension to stochastic finite elements will be examined for this purpose. Monte Carlo algorithms for multi-processor supercomputers will be developed as a practical tool for large-scale system reliability evaluations.

结构系统可靠度分析的有效方法 故障模式法（FMA）。 FMA的缺点限制了它的广泛应用。 以促进 可靠性理论在实际结构中的应用， 替代方法，特别是基于最近提出的稳定 将开发和扩展配置方法（SCA）。 实际需要的SCA近似值 也将被研究和开发。 连续可靠性 系统需要与离散系统相关的随机方法 (e.g.,有限元）; Galerkin公式及其扩展， 随机有限元将为此目的进行检查。 Monte 将开发多处理器超级计算机的卡洛算法 作为大型系统可靠性评估的实用工具。