失效分析

After confirming the failure models of the structure and the probability distributing of the stochastic variable, we could use Monte Carlo Method and Response Surface Method doing reliability analysis of the bridge.

在确定结构的失效模式和随机变量的概率分布后，分别采用蒙特卡罗法和响应面法对桥梁进行可靠性分析，比较两种计算方法的计算结果，表明两者比较接近，都取得较好的计算效果。

To analyze the reliability of oil pipeline ,the traditional methods of the evaluation for reliability ,based on the theory of reliability and supposal of failure rate ,regard the pipeline as a system of series connection or parallel connection .

对长输管道可靠性进行评估的传统方法是，将管道结构视为一个串联或并联系统，运用可靠性的理论概念和各种失效概率假设，以故障率的统计资料为计算依据来进行可靠度的计算分析，可靠度也采用故障率等参数来表达。

After that, analytically using the Taylor formula, it reduces the expansion to one-variable function and makes a specific discussion.

在判别法失效的情况下，从几何方面引入了判别二元函数极值的一些必要条件，然后在分析方面利用Taylor公式，将展式化为一元函数，进行了比较细致的讨论。

Through test and analysis, it is believed that the main cause of failure of the short inlet pipe of main platen header is low smelting purity and high impurity content of steel, and original cracks formed by concentrated impurity along the pipe longitudinally during rolling, which leads to tear-off.

通过试验，分析部件失效原因为：钢材冶炼纯净度低致使夹杂物超标，在随后的轧制过程中形成沿管子纵向分布的密集夹杂物构成的原始裂纹，从而导致开裂。

Performed analysis and teardown on units to investigate failures mode , then monitor process improvement .

安排新品测试及解决测试中发现的问题，与设计部门一起分析产品失效模式，并跟踪改进过程。

Unfortunately, the variables of the tensor multiplicative wavelet function are separable, and wavelets analysis is often fail when it is used to represent the higher sigularities.

小波变换是目前已知的对信号\函数的点奇性进行描述的最好工具，但对于高维奇性，可分离变量的张量积小波分析常常会失效。

METHODS: The endodontic instrument was assumed as a metal conical bar. The normal stress of bending loads and the shear stress of torsional loads were calculated with the knowledge of mechanics. The relations between stress and such parameters as angle and radius of canal curvature, radius of instrument, polar moment of inertia, and metal elastic modulus were analyzed. The criteria for yielding and fracture of the instrument were discussed.

将根管器械刃部假设截面为圆的金属细锥杆，利用材料力学及断裂力学的原理与方法，分别计算根管器械在弯、扭载荷下的应力分布，分析应力与根管弯曲角度、根管弯曲半径、器械直径、器械横截面极惯性距、金属弹性模量等参数的确切关系；探讨器械屈服、断裂失效的准则。

METHODS: The endodontic instrument was assumed as a metal conical bar, the normal stress of bending loads and the shear stress of torsional loads were calculated with the knowledge of mechanics , the relations between stress and such parameters as angle and radius of canal curvature, radius of instrument, polar moment of inertia, metal elastic modulus were analyzed, the criteria for yielding and fracture of the instrument were discussed .

将根管器械刃部假设为截面为圆的金属细锥杆，利用材料力学及断裂力学的原理与方法，分别计算根管器械在弯、扭载荷下的应力分布，分析应力与根管弯曲角度、根管弯曲半径、器械直径、器械横截面极惯性距、金属弹性模量等参数的确切关系；探讨器械屈服、断裂失效的准则。

Analyzing the dependent failure and stepwise computing the reliability of a parallel system, the reliability model of cumulative fatigue damage of a load sharing parallel system is developed according to the total probability formula and Miner theory.

为了有效处理载荷共享并联系统的可靠性问题，首先分析了并联系统的相关失效，并分步计算并联系统可靠度，应用全概率公式和Miner理论对并联系统进行了疲劳累积损伤可靠性建模。

The experiment and analysis is shown that it is effective that using reflection technology to deal with services unavailability.

通过实验仿真和分析，表明利用反射技术可以有效地处理服务失效这个问题。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。