机械零件在随机载荷作用下产生疲劳失效。
The machine parts occurred fatigue failures under the actions of random loads.
研究了随机载荷作用次数对齿轮可靠性的影响。
The effect of frequency of loading actions on the reliability of a gear is studied.
随机载荷作用下铁路起重机伸缩臂模糊可靠性分析。
Fuzzy Reliability Analysis of Railway Crane Telescopic Jib under Stochastic Load.
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。
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.
本文研究在随机载荷作用下，管状杆件焊接部位裂纹的扩展及断裂问题。
This paper is devoted to the problems concerning the propagation and fracture of the cracks on the welds of the tubes under the random load conditions.
这样，大大地简化了在一大类统计特性缓慢变化的非平稳随机载荷作用下的结构的寿命与可靠性估计问题。
Thus, the problem of estimating of the reliability of structures under a big class of nonstationary random loadings with slowly varying statistics can be simplified significantly.
本文介绍了一种新型的随机程序载荷谱，以用于拖拉机零部件在随机载荷作用下的室内模拟试验与寿命预测。
A new type of random program constant amplitude load spectrum is introduced, which is used in laboratory simulation test and life prediction of tractor components under random loading.
该文在分析了时间序列模型的自回归系数对结构单元刚度灵敏度的基础上，提出了一种采用随机载荷作用下结构的时域响应数据进行损伤识别的新方法。
A new method is developed for identifying structural damages at the element level by using time-domain response data at a few points caused by random loadings.
海浪等随机载荷的作用可能使立管产生腐蚀疲劳破坏。
They may subject to corrosion fatigue damage owing to the effect of random load imposed upon by sea waves, etc.
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。
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。
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.
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