失效

Starting from the basic concept and principle of reliability theory, some methods of reliability analysis and calculation for structural members and systems are discussed in seme detail m this paper, On the basis of others'research achieements , the method for calculating the reliabillity of continuous PPC girder bridge system is deduced from the probability of failure,In accordance with the test resuIts of 14 two-span continuous PPC model beams , obtained from the rescarch project,A study on the plastic ...

本文从可靠度理论的基本概念和原理出发，主要论述了结构杆件和系统可靠性分析和计算方法。在前人研究的基础上，利用失效概率推导出连续梁系统可靠指标的计算方法，本文还根据高等学校博士学科点专项科研基金资助项目《大跨度预应力混凝土桥塑性行为的研究》所进行的十四片两跨混凝土连续梁桥模型试验的数据算出各梁承载能力的系统可靠指标。

The effect of TiC coating in electrode tip surface on spheriform electrode degradation during resistance spot welding zinc coated steel was investigated by SEM,EDX and XRD.

利用SEM、EDX和XRD等方法分析了在点焊镀锌钢板时球形电极表面熔敷TiC涂层对电极失效的影响。

The results show that spheriform electrode degradation mechanism was basically caused by wear due to fracture of local welding between the electrode tip surface and zinc coated sheet steel happen at electrode surface and alloying between electrode and zinc on zinc coated steel during resistance spot welding zinc coated steel.

结果表明：点焊镀锌钢板时，球形电极的失效机制，主要是电极和镀锌板之间局部焊接的断裂发生在电极表面而导致的电极磨损，以及电极和镀锌板表面的锌之间的合金化。

It is concluded that the root cause of the actuator failure was attributed to using stellite alloy as welding filler material between carbon steel parts.

该电动头失效的根本原因是由于错用司太立合金作为焊接填充材料对碳钢零件进行焊接。

There are two cases to define the failure. One is the rotor system can not to strit over the critical speed, and the other is arising the bistable characteristic.

并定义了两种失效的情况，一是转子系统过不了临界转速，二是出现双稳态特性。

Stupp B C Synergistic effects of metals co-sputtered with MoS2 10.1016/0040-6090(81)90023-7 Thin Solid Films , 1981,null

齐尚奎%冯良波%高玲二硫化钼润滑失效的单电子转移机理研究摩擦学学报， 1996，2

Nonunion,subacromial impingement syndrome and vascular necrosis of humeral head was not found in all cases.

随访期间，无螺钉脱出、折断、内固定失效发生，无一例出现肩峰撞击、畸形愈合及肱骨头缺血坏死。

It is concluded that the service life calculated with the superposed failure model coincides completely with the practical service life.

最后又用发动机整机加速热老化地面试验和自然贮存地面试验数据加以验证，结果表明用叠加失效模型计算的使用寿命和实际使用寿命有较好的一致性。

Often these factors work synergistically, causing materials that are normally resistant to light alone of moisture alone to fail.

这些因素通常是共同作用的，从而导致原本可单一抗光或抗湿的材料失效。

］ The expiration properties and the optimal activation time of mechanically activated pyrite was deduced by measuring the maximal potential difference of the galvanic cell in the same electrolyte with the activated pyrite and the unactivated pyrite as the electrode material respectively.

摘 要］通过比较由活化和未活化黄铁矿在相同种类、相同浓度的电解质溶液中构成原电池的最大电势差，确定了活化矿的失效性和最佳活化时间。

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。