失效分析

Then, we research the physical and chemic techniques in detail, and analyze the deactivation of the catalyst in use of our test system at present.

随后文章对理化分析技术进行了系统的介绍，并在现有排放测试体系基础上，运用理化分析技术对催化转化器的失效进行了多方位的分析。

Results showed that the MnS inclusion wasn't in accordance with standard, and there were lots of corrosion pits and mechanical defects at root and flank, which would damage the drill collar box.

摘 要：通过宏观分析、力学性能测试、化学成分分析、金相组织和微观断口分析，对某井发生的钻铤内螺纹接头横向开裂失效原因进行分析。

For the first time, on the basis of the principle design scheme of the system, the reliability analysis of the new type of electromechanical fluid drive system and its subsystem is carried out overall and systematically, which contents include reliability model building, reliability prediction and distribution, failure mode and effect analysis , fault tree analysis of the straight-rotary ball actuator.

基于本文提出的系统原理设计方案，首次对飞行器新型机电液驱动系统及滚珠直旋作动器子系统进行了较全面、系统的可靠性分析，包括系统与子系统可靠性建模，系统的可靠性预测与分配，系统的失效模式及影响分析，系统的故障树分析等，并结合给定设计指标对现有系统和子系统的可靠性进行了分析与评价，指出了提高系统及部件可靠度的措施。

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状；然后，将供应链系统作为一个复杂系统来分析，确定了系统运行过程中所经历的状态，通过引入补充变量的方法，建立了用偏微分方程组描述的分布参数系统模型，用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式，证明了系统解存在的唯一性、非负性和指数阶渐近稳定性；并借助Matlab工具，利用二阶、三阶辛普森积分方程模拟系统解的性态，并给出系统动态解的仿真图；本文又对上述系统增加了系统可能失效状态和优化调整状态，并在此基础上建立了用偏微分方程组描述的分布参数系统模型，同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究，得到系统动态解和稳态解的数学表达式，证明了系统动态解存在的唯一性、非负性及渐近稳定性，为进一步分析和研究供应链优化奠定了理论基础。

Based on combination weighting analysis, fuse invalidation diagnosis technology consists of rule layer importance analysis technology, which includes establishing recurrent step layer, establishing contrast matrix, calculating weighting and checking consistency; security importance analysis technology, which includes establishing contrast matrix, calculating weighting and checking consistency; system combination vector analysis technology, which includes calculating system combination vector and checking system combination vector analysis technology.

作者：李科伟，王新政作者单位：（河南江河机械有限责任公司产品研究所，河南平顶山 467337）摘要：基于组合权重分析的引信失效诊断技术，包括由构造递阶层次、构造成对比较矩阵、计算权重及一致性检验等步骤组成的准则层重要度分析技术；由通过构造成对比较矩阵、计算权重及一致性检验得以完成的安全性重要度分析技术；以及由计算系统组合权向量和系统组合一致性检验两步构成的系统组合权向量分析技术。

Based on combination weighting analysis, fuse invalidation diagnosis technology consists of rule layer importance analysis technology, which includes establishing recurrent step layer, establishing contrast matrix, calculating weighting and checking consistency; security importance analysis technology, which includes establishing contrast matrix, calculating weighting and checking consistency; system combination vector analysis technology, which includes calculating system combination vector and checking system combination vector analysis technology.

作者：李科伟，王新政分类：装备与武器作者单位：（河南江河机械有限责任公司产品研究所，河南平顶山 467337）摘要：基于组合权重分析的引信失效诊断技术，包括由构造递阶层次、构造成对比较矩阵、计算权重及一致性检验等步骤组成的准则层重要度分析技术；由通过构造成对比较矩阵、计算权重及一致性检验得以完成的安全性重要度分析技术；以及由计算系统组合权向量和系统组合一致性检验两步构成的系统组合权向量分析技术。

Based on combination weighting analysis, fuse invalidation diagnosis technology consists of rule layer importance analysis technology, which includes establishing recurrent step layer, establishing contrast matrix, calculating weighting and checking consistency; security importance analysis technology, which includes establishing contrast matrix, calculating weighting and checking consistency; system combination vector analysis technology, which includes calculating system combination vector and checking system combination vector analysis technology.

作者：李科伟，王新政分类：装备与武器上传者：ZCOM网友作者单位：（河南江河机械有限责任公司产品研究所，河南平顶山 467337）摘要：基于组合权重分析的引信失效诊断技术，包括由构造递阶层次、构造成对比较矩阵、计算权重及一致性检验等步骤组成的准则层重要度分析技术；由通过构造成对比较矩阵、计算权重及一致性检验得以完成的安全性重要度分析技术；以及由计算系统组合权向量和系统组合一致性检验两步构成的系统组合权向量分析技术。

To counter the case which worm gear lost efficacy of rotating screen barrel rice mill ,reliability design theory was applied to analyze it.

针对旋筛式碾米机蜗杆传动时有失效的情况，运用模糊可靠性设计理论对蜗轮的强度进行分析研究，找出了蜗轮接触疲劳强度可靠度不足而失效的原因，将蜗轮材料由铸铁改为铝铁青铜，提高了蜗轮—蜗杆接触强度可靠度和弯曲强度可靠度。

The progressive collapse analysis on moment resisting frames of various span length, height and braced frames is analyzed. The curves of dynamic effect to column failure time and the displacement-time of column failure point are obtained.

采用动力非线性计算方法分别对不同跨度和高度的空间纯框架及框架支撑结构进行连续倒塌模拟分析，得到结构动力效应与柱失效时间的关系曲线和各失效点的位移时程曲线。

As a result, many risk identification techniques have been developed, including brainstorms, interviews, questionnaires, checklists and prompt lists, assumptions/constraints analysis, SWOT analysis, Delphi groups, nominal group technique, root cause analysis, failure modes analysis and others. Some of these methods are creative and others draw on past experience; some can be undertaken by individuals while others require group input; some approaches are simple and rapid where others are labour-intensive and take time.

因此许多的风险辨识技术被发展出来，包括脑力激荡、访谈、问卷、检核表与清单、假定/限制分析、SWOT分析、德菲群体、提名小组技术、根由分析、失效模式分析、以及其他方法；其中某些方法是创造性的，某些则是基於过去的经验；某些可以由个人来执行，某些则需要团体的投入；某些途径简单且迅速，某些则是劳力密集又耗时。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。