有必要对疲劳系数的定义作详细的解释。
It is necessary to elaborate on the definition of fatigue coefficient.
有必要对疲劳系数，如延性系数的定义作详细讨论。
It is necessary to elaborate on the definition of a fatigue coefficient such as that for ductility.
因此，在对局部结构进行疲劳强度分析时，应考虑错位对于应力集中系数的影响。
Thus, the stress concentration factor due to the misalignment should be considered in the analysis of fatigue life of the local structures.
选择足够安全系数的钢丝绳、加强钢丝绳维护检查和钢丝绳疲劳程度的监测，是安全运行的重要保证。
It is important ensuring of safe running to select rope with adequate safety coefficient, to strengthen maintenance inspection and fatigue level monitoring of wire rope.
负载能力通过计算抵抗最大负载力造成的疲劳毁损的安全系数得出。
Load capacity contained by calculating safety factor that resistant to fatigue damage caused by the maximum load force.
对各工况下的二维疲劳载荷，采用权系数的方法，合成并获得了多工况下的二维载荷联合概率密度函数。
Two dimensional fatigue loading under various working conditions is synthesized with weight coefficient method to obtain joint probability density function under multiple working conditions.
该研究思路和方法也为四线钢桁梁桥及更多线钢桁梁桥的疲劳检算多线系数研究提供依据。
The research ideas as well as (approaches) have provided useful reference of multiple-line coefficient for fatigue check and computation of four-line and multiple-line steel truss bridge.
合成材料具有更好的承载能力，更低的热膨胀系数，更好的耐磨性和更好的抗疲劳性能。
The composite material has resulted in greater load carrying capacity, a reduced thermal expansion, greater wear resistance and fatigue endurance.
相关系数法是一种有效的飞机疲劳试验载荷处理方法。
The method of correlation factor is an effective method to loads transacting of the fatigue test of airplane structure.
并采用应力严重系数法估算了其疲劳寿命。
The stress severity factor method is used to calculate the fatigue life of the structure.
将疲劳切口系数定义为临界距离法得出的平均应力与热点应力之比值。
The fatigue notch factor is introduced as the ratio of average stress over the region of a critic distance around critic point to the hot spot stress.
本文指出，根据有限寿命疲劳强度安全系数法设计出的零件仍然有可能屈服失效。作者建议用寿命计算法和图解估值法代替现有的安全系数法。
This paper indicates that the components, which are designed according to the safety factor method of fatigue strength for the finite life, can also be yielded.
应用二维单侧容限系数公式，提出了一种测定金属材料疲劳裂纹扩展速率的小样本方法。
A small sample method for testing fatigue crack growth rate curve of steel was presented in this paper using a formula of two-dimensional one-side tolerance factor.
通过应变分布影响系数把应变疲劳与应力疲劳联系起来。
Strain fatigue and stress fatigue are related by the influence coefficient of strain distribution.
应力指数法和疲劳强度减弱系数法是进行疲劳容器设计的重要方法。
Stress index method and fatigue strength weakened coefficient method are important methods for designing fatigue vessel.
采用一个超声加载频率修正系数对超声疲劳性能试验中载荷频率对疲劳性能的影响进行修正。
A modifying coefficient of load frequency is used to describe the effect of load frequency on fatigue behavior in ultrasonic fatigue testing.
预应变可以延长疲劳裂纹形成寿命，提高疲劳裂纹形成的抗力系数和裂纹形成的当量应力门槛值；
The pre-straining prolonged the fatigue crack initiation life, and increased resistance coefficient and equivalent stress threshold of the fatigue crack initiation.
低周疲劳常采用寿命分散系数描述结构疲劳强度的固有分散性，而高周疲劳采用疲劳强度减缩系数来描述。
The factor of life scatter is used for depicting the dispersibility of fatigue strength in low cycle fatigue, but in high cycle fatigue is the fatigue strength reduction factor.
采用加权平均法定出疲劳目标可靠度指标，推导了疲劳设计公式，并给出各分项系数的建议值。
With the method of weighting average, index of goal reliability for fatigue was dealt with. Formula of fatigue design for military bridge was presented. Subentry coefficients were suggested.
本文给出了一种基于疲劳损伤理论的计算强化系数的方法。
This article has given one kind of method based on the fatigue damage theory to compute the enhancement coefficient.
采用此方法确定疲劳缺口系数，获得的损伤参量与裂纹形成寿命关系的数据分散带最窄。
If the plastoelastic fatigue notch factor was regarded as the transforming factor of damage calculation, the data scattering zone of life curve was most narrow.
并介绍了ZL30 B型装载机全尺寸构件疲劳试验的情况和结果，给出了疲劳寿命的分析系数。
Besides. the fatigue test and its results of full-sized structural components of loader model ZL30B are introduced and the analysis coefficients for fatigue service life are given.
民机结构的疲劳寿命服从双参数威布尔分布，其分散系数与战斗机基于对数正态分布的疲劳寿命分散系数存在明显的不同。
The fatigue life of civil aircraft structures obeys two parameter Weibull distribution, its scatter factor is significantly different from that obeys logarithm normal distribution.
第二章研究汽车驱动桥半轴疲劳破坏机理，在零件疲劳损伤理论和程序载荷谱处理技术基础之上给出路面强化系数模型。
In chapter 2, the fatigue mechanism of automobile half shaft is studied; and intensified coefficient model based on fatigue failure theory and programmed load spectrum technology is also provided.
并应用了热疲劳品质系数的概念，对灰铸铁的热疲劳性能进行了定性分析。
Adopting the concept of thermal fatigue quality factor, the thermal fatigue resistance of grey...
综合考虑了接触线应力集中系数、尺寸系数、表面质量系数和材料疲劳强度的影响，得到了接触线疲劳极限的统计特征。
Statistical characteristic of fatigue strength of contact wires was obtained by comprehensively considering such coefficients as stress concentration, size and surface quality.
通过管节点模型试样的低温和常温疲劳试验，得出了低温环境对试样疲劳s - N曲线的影响系数。
The fatigue performances of welded specimen of tubular joints are tested at low temperature and normal temperature.
通过管节点模型试样的低温和常温疲劳试验，得出了低温环境对试样疲劳s - N曲线的影响系数。
The fatigue performances of welded specimen of tubular joints are tested at low temperature and normal temperature.
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