By analyzing operator's fatigue states under different working posture on assembly line, studys the fatigue threshold and working time rate of standing posture, sitting posture and alternate posture.
通过对流水线上操作人员在不同作业姿势下的疲劳分析，研究站姿、坐姿和站、坐交替三种姿势的疲劳时间阈值和劳动时间率。
Effect of experimental parameters on small fatigue crack growth threshold test in 9310 steel was investigated.
针对9310钢研究了试验参数对疲劳小裂纹门槛值测试结果的影响。
The mechanical properties of the butt welded joints have been evaluated according to the impulsive and fracture toughness as well as the rate and threshold values of fatigue crack propagation.
根据试验测定的焊缝各区冲击韧性、断裂韧性、疲劳裂纹扩展速率和疲劳裂纹扩展门槛值，对焊缝力学性能作出综合评价。
There was significant consistency in transient auditory threshold shift, an important indicator of AFF and auditory fatigue.
接触噪声人群的闪声融合频率与听觉疲劳的重要指标暂时性听阈阈移有着明显的一致性。
The pre-straining prolonged the fatigue crack initiation life, and increased resistance coefficient and equivalent stress threshold of the fatigue crack initiation.
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；
In contrast with the threshold of fatigue cracks, a series of regulation of expanding of fatigue small cracks has been deduced.
采用对比分析方法，从疲劳裂纹的门槛值角度出发，归纳总结了疲劳裂纹的扩展规律。
A distribution function of two dimensional threshold is given for fatigue crack propagation. A two dimensional stress threshold interference model is set up.
本文给出二维疲劳裂纹扩展门槛值分布函数，建立二维应力—门槛值干涉模型。
The threshold of the fatigue crack initiation from the notch of the microbeam is close to that of the bulk material.
疲劳裂纹从尖缺口处萌生的门槛值接近块体材料。
With this method, data collected from the field test were calculated, and the threshold was gained which can be used to determine the generation time of driving fatigue.
运用该方法对现场试验采集的数据进行计算，得到了能够确定驾驶疲劳开始产生时刻的驾驶疲劳度的阈值。
A distribution function of two dimensional threshold is given for fatigue crack propagation.
本文给出二维疲劳裂纹扩展门槛值分布函数，建立二维应力—门槛值干涉模型。
Tempering temperature remarkably affect the threshold value of fatigue crack propagation.
回火温度对该钢的疲劳裂纹门槛值影响显著。
Therefore, the distribution configuration of the fatigue damage threshold is the same as the distribution configuration of lineal cumulative damage.
因此，新定义的疲劳损伤阀值与线性累积损伤之间在分布形态上是一致的。
The fatigue damage threshold observes the normal distribution under the condition of the logarithmic fatigue life observing the normal distribution.
疲劳寿命在一定显著水平下服从对数正态分布，由此可以证明疲劳损伤阀值服从正态分布。
Fatigue crack growth threshold is predicted based on materials cyclic plasticity.
基于材料的循环塑性预测了疲劳裂纹扩展的门槛值。
This paper presents a review of the characteristics and mechanisms of fatigue crack propagation(FCP)at near-threshold range in various metals and alloys.
本文回顾了各种金属及合金在门坎区附近的疲劳裂纹扩展的机制和特征。
This paper presents a review of the characteristics and mechanisms of fatigue crack propagation at near-threshold range in various metals and alloys.
本文回顾了各种金属及合金在门坎区附近的疲劳裂纹扩展的机制和特征。
The threshold value of damage and maximum strain are adopted as failure criterion to reflect fatigue failure and ductile failure respectively.
针对材料不同的失效模式，分别采用损伤变量门槛值和最大应变作为失效判据。
The fatigue damage threshold with a reliability and a confidence is suggested in this paper.
还给出了带有可靠度和置信度的疲劳损伤阀值。
Based on the features of the three-dimensional crack, an experimental method was presented to measure the near-threshold fatigue crack growth rate and threshold of the corner crack at a hole.
基于三维裂纹特征，本文提出了一种测量孔边角裂纹近门槛区疲劳裂纹扩展速率及门槛值的实验方法。
Finally the threshold value of load amplitude that influences fatigue life of wheelset is calculated based on the principle of equivalent damage and damage distribution agreement.
依据损伤等效和损伤分布一致原则，计算得出了影响轮对疲劳寿命的载荷幅值门槛值。
Particula emphasis has been devoted to the influence of load ratio and microstructure on behaviour of near-threshold fatigue crack growth.
着重分析了载荷比和显微结构对门坎值附近裂纹扩展行为的影响。
Particula emphasis has been devoted to the influence of load ratio and microstructure on behaviour of near-threshold fatigue crack growth.
着重分析了载荷比和显微结构对门坎值附近裂纹扩展行为的影响。
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