Improving system reliability by failure‐mode avoidance including four concept design strategies
Improving system reliability by failure‐mode avoidance including four concept design strategies
复制标题
通过避免故障模式提高系统可靠性，包括四种概念设计策略
作者：
D. Clausing;D. Frey
为了保证可靠性，系统必须是鲁棒的，即使在恶劣的环境、不断变化的操作需求和内部恶化等广泛的条件下，系统也必须避免故障模式。本文讨论和编纂的技术，通过扩大系统功能的条件范围来进行稳健的系统设计。介绍了单侧和双侧失效模式之间的区别，并提出了四种策略，用于在单侧失效模式集之间创建更大的窗口。每种策略都通过两个工业实践的例子来说明。对于每种策略，一个例子是从纸张处理，另一个是从喷气发动机。通过展示每种策略都成功地应用于每个系统，我们试图说明这些策略是广泛适用和高效的。© 2005威利期刊有限公司系统工程8：245-261，2005年
To be reliable, a system must be robust—it must avoid failure modes even in the presence of a broad range of conditions including harsh environments, changing operational demands, and internal deterioration. This paper discusses and codifies techniques for robust system design that operate by expanding the range of conditions under which the system functions. A distinction is introduced between one‐sided and two‐sided failure modes, and four strategies are presented for creating larger windows between sets of one‐sided failure modes. Each strategy is illustrated through two examples from industrial practice. For each strategy, one example is from paper handling and another is from jet engines. By showing that every strategy has been successfully applied to each system, we seek to illustrate that the strategies are widely applicable and highly effective. © 2005 Wiley Periodicals, Inc. Syst Eng 8: 245–261, 2005