那位大哥英语好点的,帮我翻译下.

作者&投稿:阎岩 (联系方式在网页底部的电邮联系)
求翻译 英语好的帮忙翻译下~

Conventional casing strength is designed and assessed with safety coefficient method [1,2] by
传统的套管强度设计和评估安全系数法[1,2]的
comparing estimated maximum pressure with minimum casing capacity to obtain a safety coefficient of
比较估计的最大压力最小的套管容量得到安全系数
reliability which, however, is not a method with factors of uncertainty considered. In fact, external loads
可靠性,但是,是不是一个不确定性因素的方法。事实上,外部载荷
and casing strength are uncertain, e.g. due to limited manufacturing techniques and technical inspection,
套管强度是不确定的,例如有限的制造工艺和技术检验,
casing external load, internal pressure, bending moment, temperature and overload are uncertain.
套管外载,内部压力,弯矩,温度和负荷不确定性。
Similarly, different casing manufacturers have different manufacturing techniques and technical standards,
同样,不同厂家有不同的制造技术和技术标准,
therefore, their casings have random mass parameters, such as yield strength, outside diameter, wall
因此,他们的外壳具有随机质量参数,如屈服强度,外径,壁
thickness, out-of-roundness, unevenness, residual stress. Conventional design cannot handle large
厚,圆度,不均匀,残余应力。传统的设计不能处理大
numbers of unknown factors and parameter changes since factors of uncertainty are unavoidable. For this reason, QRA and LRFD [3, 4] on the reliability assessment of casing strength were presented in the
未知的因素,由于不确定因素是不可避免的参数变化的数字。为此,QRA和LRFD [ 3,4 ]对套管强度的可靠性评估中
middle of 1990’s in other countries and successfully utilized by BP and Armco. Risk reliability
1990是在其他的国家和BP和阿姆科成功地利用中间。风险的可靠性
assessment is one of the methods for handling factors of uncertainty in drilling engineering of other
评估是用于处理在其他钻井工程中不确定性因素的一种方法
countries [5]. There have been few studies conducted in terms of reliability assessment of casing for
国家[ 5 ]。已经有一些在套管可靠性评估方面进行的研究
domestic oil wells. In reference [6], a fault tree quantitative assessment method is used to predict the
国内石油威尔斯。文献[ 6 ],一个故障树的定量评估方法是用来预测
reliable service life of casing, but has not been widely utilized in actual operations due to plenty of basic
套管可靠寿命,但还没有被广泛的应用在实际操作中由于大量的基础
matters and factors involved. In reference [7], with the basis of API calculation formula of casing strength,
问题,涉及的因素。文献[ 7 ],与API套管强度计算公式的基础上,
casing strength distribution regularity and effects of randomness of casing geometric dimensions and
套管强度的分布规律和影响套管几何尺寸的随机性和
tubular mechanical properties on randomness of casing strength are analyzed using the method of Latin
对套管强度的随机性管力学性能使用拉丁语的分析方法
Hypercube random simulation based on Monte-Carlo method, but the influence of factors of uncertainty,
超立方体的随机模拟,蒙特卡罗方法的基础上,但影响不确定因素,
including casing out-of-roundness, unevenness and residual stress on the prediction result is not taken into
包括壳体的圆度,对预测结果的不均匀性和残余应力是不考虑
consideration.
考虑。
The investigation shows an importance of the selection of strength model and consideration of factors
研究表明,强度模型和考虑的因素选择的重要性
of uncertainty to predict probability index for safety and reliability assessment of casing. This study has
不确定性预测套管的安全和可靠性评估的概率指数。这项研究
established a method of safety and reliability assessment on casing collapse resistance and internal pressure
建立了对套管抗挤强度和内压的安全性和可靠性评估方法
resistance on the basis of the newly developed calculation model of casing strength and in accordance with
电阻对新开发的计算模型,套管强度的基础和依据
reliability theory and random theory.
可靠性理论和随机理论。

这种型号的军用车是在1944年生产的,是为德国军队提供的一种作为反坦克武器的配合型车,口径为7.5cm 型的40炮可以被设置一个任意调整的范围,在那时可以消灭大多数的敌坦克,虽然这种车建造的数量有限,但是这种车在西欧被大量发展 用来对抗欧洲的苏维埃势力。


不是机器翻译, 自己翻得,满意请好评 在你手机客户端右上角点【满意】即可 谢谢

I love you, but I can choose to give up. Dear sorry!

Sorry, my dear.I have to give up though I love you so much.

i care for you so much,but i have to give up,so,my sweet,be apologetic to you!

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