【摘要】 以三种不同形式应力集中现象作为研究对象 ,分析讨论了灰色预测方法在应力集中问题上应用的可行性 ,研究了预测模型精度、原始数据分布特点对灰色预测结果准确性的影响 结果表明 ,灰色预测模型可以比较准确地预测出应力集中区域中最大应力点的应变 (或应力 )值 ,并且具有较广的适用性 同时指出了采用灰色预测方法解决应力集中问题时 ,采集原始数据应该遵循的一般原则更多还原

【Abstract】 Three different forms of stress concentration are taken as the objects of investigation.The feasibility about application of gray predication to stress concentration is discussed, and the effects of the precision of the forecasting model and the distributing characteristic of the original data on the forecasting precision of the gray model are studied. The results show that the gray model can forecast the maximum stress or strain in the area of stress concentration, and it has wide adaptability.Meanwhile, the general principle of gathering original data is presented.更多还原