failure n. 1.失败 (opp. success); 不及格。 2.不足,缺乏;衰退;【医学】衰竭。 3.不履行,玩忽。 4.破产,倒闭;(银行等的)无力支付。 5.失败的事;失败者。 6.【物理学】失效;【机械工程】断裂,破坏,变钝。 F- is the mother of success. = F- teaches success. 〔谚语〕失败是成功之母。 a failure of rain 雨量缺乏。 failure in duty 不尽职。 a crop failure = (a) failure of crops 收成不好,歉收。 failure of electricity 停电。 a failure of issue 无后(嗣)。 failure of eyesight 视力减退。 He is a failure as a teacher. 他教书不行。 heart failure 【医学】心力衰竭。 a social failure (社会上的)失败者。 end in failure = meet with failure 终归失败。 invite failure 招致失败。
component adj. 构成的,组成的,合成的,成分的。 component motion 【物理学】分运动。 component part 组成部分。 n. 部分,成分;【物理学】分力,分向量;【自动化】元件,组件,部件。 component of force 【物理学】分力。 component (star) 【天文学】子星。 components of cost (各种)生产费用。
Then , according to the requirement analysis , concept design , logic design and database design , the electronic instrument failure rate database was designed and the components failure rates and n factors in gjb / z299b - 98 were established in the database 其次,按照开发关系型数据库所要求的需求分析、概念设计、逻辑设计和物理设计四个阶段,设计了电子设备失效率数据库并做了数据录库工作。
How to improve the reliability of electronic instrument in design stages has got more and more attention recently . traditionally , the reliability was predicted by components failure rates based software analysis , and the design scheme was revised according to the prediction results 现今,如何在设计阶段提高电子设备的可靠性越来越引起了人们的关注,国内外通用的做法是利用基于元器件失效率数据的分析软件预测其可靠性,然后根据预测结果完善设计方案。
Reconfigurable flight control systems are control systems that are characterized by the ability to perform in the presence of drastic changes in the system dynamics due , for example , to abrupt system component failures or rapid changes in the operating conditions 可重构飞行控制系统能够根据预先设定的故障模式,自动地调节故障后系统的控制律。注重于使用无故障元件获得更大效益、补偿故障元件的功能,有利于保持系统的安全运行,最大限度地执行设定的控制指令。
In the course of building knowledge base , this article analyses field knowledge of the automobile components failure with fault tree analysis ( fta ) , and represent the field knowledge included in fault tree with the combination of frame and production rule on the base of studying the theory and method about knowledge representation 在知识库的建造过程中,本文应用故障树分析法分析了汽车零部件失效领域知识,在讨论了知识表示的有关原理和方法的基础上,采用了产生式系统和框架系统相结合的方法表示故障树中蕴涵的领域知识。
In the course of designing reasoning machine , this article uses forward inference and the tactics of best - first search . and in connection with much of fuzzy knowledge , it introduces confidence theory to infer the formula of confidence which propagate in and / or tree , and illustrates how to calculate the confidence when it propagate in the course of automobile components failure analysis reasoning 在推理机的编制过程中,本文采用了正向推理方法及最好优先搜索策略,同时针对知识库中大量的模糊知识,本文引入了可信度推理模型,推导了可信度在与或树中传播计算公式,并举例说明了在汽车零部件失效分析推理过程中可信度的传播计算方法。
An optimization algorithm for the problem of control reconfiguration in response to operating condition changes or abrupt system component failures is presented here . the algorithm provides an output feedback controller that not only stabilizes the impaired system , when possible , but also preserves much of the dynamics of the unfailed system . the design is such that the closed - loop system is robust with respect to inevitable uncertainties / modeling errors on the state - space matrices of the impaired system 文中对控制律重构的三种方法进行了详细的研究和比较:控制律优化算法由于考虑了实际中可能出现的损坏后系统模型的不准确性,所以由该算法得到的控制器设计方法在受损系统状态矩阵不确定的情况下,依然能够保证闭环系统的稳定性。