查询词典 failure analysis

On the base of the actual observation and theoretical analysis it was found that the primary reason which results in the failure of shells of hydromotor is due to the contact fatigue wear caused by the hertz stress at the starting points of the accelerated section.

在实际观测和理论分析基础上，认为多作用式液压马达壳体的失效是其加速段起点处最大赫兹应力多次作用形成的接触疲劳磨损。

C arbitrarily inequiaxial T-shaped, L-shaped and "十"shaped columns subjected to 792 load conditions is calculated using compiled C++ programme. On the basis of calculation results, the factors influencing the worst load orientation are analyzed and load orientation of the least curvature ductility of three kinds of sections is presented.Furthermore a analysis of failure mechanism for R.

本文采用非线性全过程分析方法，采用C++语言编制了不等肢异形柱截面曲率延性比的计算程序，首先计算了不等肢T形、L形和十字形柱在792种工况下的截面曲率延性比，在此基础上分析了影响不等肢异形柱截面延性的最不利荷载方向的各种因素，并得出了这三种截面不等肢异形柱在上述工况下的截面延性最不利荷载方向。

Based on the upper bound limit analysis theorem,upper-bound answers of bearing capacity of circular shallow foundations by suitable choice of a kinematically admissible velocity field and admissible failure mechanisms were derived.

在极限分析上限定理的基础上，选择合适的机动位移速度场及容许破坏模式，推导出地基承载力上限解，然后利用弹塑性力学知识得出了滚石冲击压力以及滚石冲击深度的计算表达式。

After primary analysis, Did not compliance operation procedure leaded the incident, It was reported that Operators entered into the furnace to check failure without closed the valve of nitrogen and blowed the air to purge ,At the same time did not carry out any effective protection measure was the maint cause of incident.

经初步分析，违规操作导致此起事故。据悉操作人员在未关闭氮气开关并进行有效通风的情况下，同时未采取任何有效防护措施，进入炉内检查故障，是事故发生的主要原因。

Through the chemical composition analysis, metallographical observation, Manson-Haferd parameter extrapolation and thermal-stress calculation, it is found that the failure of conic nozzle was caused mainly by the thermal stress.

通过对一失效的下集气锥形管的金相宏微观检查、Manson Haferd参数估算锥形接管的持久寿命以及热应力的计算，发现锥形接管的失效原因主要是由温差应力所导致。

One flush end-plate external joint under monotonical loading and the other four joints under cyclic loading were tested. Failure modes and the effects of reinforcement ratio and concrete in column flange were synthetically considered during cyclic loading. Results of the experiments show that external flush end-plate composite joint also have quite hysteretic behaviors, better strength resistance and stiffness that are worth to promotion in seismic area.Based on experimental results and plastic analysis simplified formulas on moment resistance of semi-rigid composite joints were introduced.

本文对1个半刚性端板连接组合边节点进行了单调静力加载试验并对4个半刚性端板连接组合边节点进行了循环加载试验研究，主要探讨了节点的破坏模式以及混凝土板内纵向钢筋配筋率和柱翼缘内填充混凝土对节点性能的影响，试验结果表明端板连接组合边节点依然具有良好的滞回性能，较好的延性和耗能能力，是一种值得推广的半刚性梁-柱节点形式。

This paper thoroughly explains the constitutive equations and failure criteria under multiaxial stress state. Models and methods of the nonlinear analysis are introduced in this paper also.

论文介绍了钢筋与混凝土材料在复杂应力状态下的破坏准则和本构关系，以及钢筋混凝土结构非线性分析的模型、理论及方法。

In these complicated structures, the appropriate design and analysis depend on the constitutive relations and failure criteria under multiaxial stress states.

对于这些复杂结构，正确的分析和合理的设计又必须依赖于混凝土多轴受力状态下的本构关系和破坏准则。

Chronic kidney failure ; Left ventricle pachynsis ; Analysis

慢性肾衰竭；左心室肥厚；分析

Based on analysis on characters of the ground failure in the neutral middle impadance ground system the pape...

文章在分析中阻接地系统的接地故障特点的基础上，提出了单相接地保护设计选型时应考虑的一些特殊问题，并提出了整定原则的一些建议

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。