...随机载荷谱；频域法；疲劳寿命 中图分类号：TH114 文献标志吗：A [gap=1283]Key words: mechanical engineering; concrete pump truck; random loading spectrum; frequency domain; fatigue life ..
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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。
And it has a high precision, strong restraining random interfering noise. As a result, it makes loading-spectrum analysis more accurate.
而且该算法精确度高，抗随机噪声干扰能力强，使得载荷谱分析更加准确。
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.
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。
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