Finally, the problems of fuzzy random fatigue damage and residual strength are discussed.
还就模糊随机疲劳疲劳损伤及剩余强度的问题，进行了探讨。
For most of the bridge cranes, the failure of the structures result from the fatigue damage in the welded box beam under the action of random fatigue loads.
随机载荷作用下的疲劳破坏是起重机焊接箱形梁的主要失效形式之一。
A new method for strain-based fatigue reliability analysis is constructed by considering interference between the random fatigue strain applied and capacity histories.
应用随机循环应变载荷-强度干涉模型，建立了基于应变的疲劳可靠性分析新方法。
In this paper, multidimensional probability model of random fatigue failure was established and the random simulating formula of failure distribution function was deduced.
本文建立随机疲劳失效的多维概率模型。论述推导机械零件疲劳失效分布的随机模拟公式。
Random vibration response analysis of thin-shells excited by acoustic loads is one of the important tasks of sonic fatigue investigation.
噪声载荷作用下薄壁壳体的振动应力响应分析是声疲劳研究的重要任务之一。
A calculation method used for fatigue life prediction of components under narrow band random loading is discussed in detail.
文中详细论述了机械构件在窄带随机应力作用下疲劳寿命预测的计算方法。
A model for fatigue reliability analysis of structural members under random stress time courses is proposed.
提出了一种随机应力时间历程作用下构件疲劳可靠性分析的新模型。
A new and simple method is presented for random vibration fatigue life prediction.
提出了一种随机振动疲劳寿命预计的简便数据处理方法。
The estimated life of a steel bridge subjected to random load in highly dependent upon damage accumulation caused by fatigue load.
对于承受随机载荷的钢桥，其寿命依赖于这种疲劳载荷造成的累积损伤。
The machine parts occurred fatigue failures under the actions of random loads.
机械零件在随机载荷作用下产生疲劳失效。
A sort of efficient calculation method was developed for fatigue life prediction under random loading.
研究了一种用于随机载荷下试件疲劳寿命预估的有效计算方法。
Then reviewing other methods on fatigue life assessment, provide an acceptable estimation of acceleration factor calculation method under wide-band random vibration condition.
同时总结了其他计算随机载荷疲劳寿命的方法，说明了使用其他模型计算加速因子是可行的。
In the test, it is verified that the random cyclic constitutive relations, like the wide recognized random cyclic strain-life relations, is an intrinsic fatigue phenomenon of engineering materials.
试验验证了以前在焊缝金属试验中的发现与推断，即工程材料的循环本构存在随机性，与循环应变-寿命关系的随机性一样，是固有的疲劳现象。
They may subject to corrosion fatigue damage owing to the effect of random load imposed upon by sea waves, etc.
海浪等随机载荷的作用可能使立管产生腐蚀疲劳破坏。
The percentage of fatigue life under first natural frequency of random spectra in fatigue life of specimen decreases with decreasing stress level of random spectra.
一阶固有频率下振动在试件疲劳寿命中所占的比重随着随机载荷谱均方应力值的降低而降低。
To model the random cyclic strain life relations during low cycle fatigue, probability based cyclic strain life curves are suggested.
引入了概率循环应变—寿命曲线描述低周疲劳循环应变—寿命试验数据的分散性。
Thermal fatigue Random variable Probabilistic analysis Solder joint Lognormal distribution;
热疲劳；随机变量；概率分析；焊点；对数正态分布；
Ferroelectric fatigue is much fatal for the electric apparatus based on the switchable polarization, such as non-volatile random access memories (NVFRAM).
铁电材料的疲劳特性是影响依赖可反转极化工作的电子器件性能的关键，例如非易失性铁电存储器。
Material characteristics, geometrical property of a structural components and the load acted on it are random variables. As a result, its natural frequency and fatigue strength are random ones.
由于构件的材料参数、几何参数及所受的载荷均为随机变量，所以构件振动时其固有频率及疲劳极限亦为随机变量。
A simplified method for calculating the fatigue damage of components under random wave and ice load was presented. This method was used to analyze the reliability of components and integral platform.
给出了在随机波浪载荷和冰载荷作用下平台构件疲劳损伤的一种计算方法，并利用该方法分析了平台单个构件和平台整体的疲劳可靠性。
A frequency domain method for predicting the fatigue life of notched specimens under random vibration loading is presented.
提出了一个考虑应力集中和疲劳极限影响的缺口件频域随机振动疲劳寿命估算方法。
Material characteristics, geometrical properties of structural components and loads are variables. As a result, the fatigue strength is analyzed by means of random variables.
由于构件的材料参数、几何参数及所受的载荷等均为随机变量，所以构件振动时的疲劳强度应通过随机参数来进行分析。
Many engineering structures are subjected to random loading in service. The load cycle interactions can have a very significant effect in fatigue crack growth under variable amplitude loading.
许多工程结构在服役过程中受到随机载荷的作用，载荷循环之间的相互作用对裂纹扩展将产生明显的影响。
Fatigue life of random vibration can be calculated by the fatigue life of sinusoidal vibration under first natural frequency.
可以通过一阶固有频率下正弦振动试验试件寿命得到随机振动下试件的寿命。
Study of fatigue crack growth rate and fatigue life calculation under random loading is very important for the reliable life prediction of engineering structures.
变化载荷作用下裂纹扩展律和疲劳寿命的计算对工程结构的寿命的可靠预测是十分重要的。
In general, these attempts revealed the process of practice incentive lag, incentive fatigue, motivation failure, random motivation to inspire blind spots and many other issues.
总的来说，这些尝试在实践过程中暴露出了激励滞后、激励乏力、激励失灵、激励随意、激励盲点等诸多问题。
The results of analysis and test show that testing time could be shortened 35% with the improved software GAUSS for controlling the MTS system during random-loading fatigue test.
分析和试验的结果表明，用改进后的软件控制随机加载的疲劳试验，可节省35%的试验机时。
The fatigue life of a notched specimen under random loading spectrum is evaluated by means of the present method.
用该方法分析了一个缺口试件在随机谱载下的裂纹形成寿命，结果比常规的有效系数和雨流法更接近试验结果。
The fatigue life of a notched specimen under random loading spectrum is evaluated by means of the present method.
用该方法分析了一个缺口试件在随机谱载下的裂纹形成寿命，结果比常规的有效系数和雨流法更接近试验结果。
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