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fatigue相关的网络例句

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与 fatigue 相关的网络例句 [注:此内容来源于网络,仅供参考]

We approach the problem based on the perception that electric field induced microstructure evolution at the crack tip will lead to fracture and fatigue. It follows that a micrograph of intensified electric field induced domain switching at the crack tip is obtained, a theoretical model of domain switching induced fracture is proposed, and the failure mechanisms of electric fracture, electric fatigue and crack kinking are revealed.

论文从电场驱动的裂尖微结构演化导致电致失效这一基本思路出发,获得了裂尖集中电场诱发铁电畴变的实验图像,提出了电致畴变断裂的理论模型,阐明了铁电陶瓷电致断裂,疲劳裂纹扩展和裂纹偏折的失效机理。

The results show that the fatigue life of the peened joint is 20~30 times as long as the as-welded joints .Therefore,the improvement of the fatigue strength of welded joints by ultrasonic peening is remarkable.

试验结果表明:超声冲击方法对焊接接头疲劳强度的改善效果十分明显,能够提高疲劳寿命20~30倍以上,极具实用价值。

By the way of X-ray stress measurement, the characteristics of residual stress distribution of specimens, which were shot peened and polished, were studied; by the way of three-point bending fatigue tests, the influence of polishing after shot peening on fatigue properties was studied; on this basis, the reason why Shot Peening Standards provide that the depth of metal removal does not exceed 10% of the specified arc height was analysed.

文中指出300M钢喷丸强化工艺中打磨对喷丸效果的影响问题;通过X射线应力测定,研究喷丸及打磨后试样的残余应力分布及变化的特点;通过三点弯曲疲劳试验,研究喷丸后打磨对试样疲劳性能的影响;在此基础上,分析喷丸标准中规定喷丸后打磨去除量不可以超过阿尔门强度值的1/10的原因。

The stress analysis and the fatigue life loss calculation of steam drum are carried out in this article. A simplification formula is proponed to calculate the main stress and is used in configuration of DCS. The rain-flow method is used to count the fatigue cycle, which can satisfy the need of on-line monitoring.

本文对其进行了应力分析和疲劳寿命损耗的计算,并提出主应力计算的简化公式用于DCS组态,采用雨流法作为在线计算的疲劳计数方法,满足了寿命损耗在线监测的要求。

The time used to swim reflects the fatigue level of animal during exercise, while the time used to climb a pole reflects the fatigue level of animal during exertion of force.

游泳时间的长短可以反应动物运动疲劳的程度,而爬杆时间的长短可以反应动物静用力时疲劳的程度。

Based upon the experimental results, including threshold values under static loading,the effects of alternating loading and room temperature creep,as well as metallographic observations of the fractography,it is concluded that notwithstanding stress corrosion or corrosion fatigue in aqua ammoniae,or fatigue in air,the cracks always initiate at the site subject to maximum normal stress(θ=-110°)along the notched surface,and then propagate along the maximum shear stress direction from that site(α=-35°).

由门槛值的测量、交变载荷的作用、室温蠕变的影响、断裂过程的金相观察及断口形貌等结果,可以确认;黄铜不论是在氨水中应力腐蚀或腐蚀疲劳,还是在空气中疲劳,裂纹都从Ⅱ型缺口试样的最大正应力处(0=-110°)萌生,并沿该处的最大剪应力方向(α=-35°)扩展。

On this basis and by using correspondent fatigue criteria, fatigue life prediction of steel box girder of bridge was discussed.

利用标准日应力谱数据和相关疲劳规范,研究了杨浦大桥钢箱梁的疲劳寿命等问题。

For steel box girder of Yangpu Bridge, fatigue stress monitoring and fatigue life prediction were implemented.

针对杨浦大桥钢箱梁,进行了疲劳应力的监测分析和疲劳寿命的预测研究。

5A kind of stress-relief groove of box thread joint has been developped. Finite Element models of several thread joints have been established by ABAQUS. The Morrow Strain-life Model is used to evaluate the fatigue life of 3 kinds of connections with different stress-relieaf grooves of box. The results show that the fatigue life of box with stress-relief groove developed in the paper is the longest.

为了定量评价几种螺纹接头的疲劳寿命大小,采用Morrow应变周期模型结合有限元分析结果计算3种具有内螺纹应力减轻槽母扣的疲劳寿命,计算结果表明本文设计的内螺纹应力减轻槽能显著延长母扣的疲劳寿命。

This paper discusses failure pattern and force of link chain hook of link chain bucket elevator, finds out the causes of short periodical fatigue failure of link chain hook and points out the key factors that influence fatigue life of the link chain hook is the fitting gap .

通过对环链斗式提升机链环钩失效形式和受力情况的分析,揭示了链环钩产生低周疲劳失效的原因,指出了在影响链环钩疲劳寿命的诸多因素中,链环钩与料斗之间的装配间隙是决定其疲劳寿命的主要因素,重新设计的链环钩解决了疲劳断裂问题,说明设计中所采取的措施是有效的。

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I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。