【摘要】 G-R曲线是地震预报中的一个重要分析曲线,用来预测大地震发生的概率。曲线中b值的变化可以反映某个地区的地震活跃的程度。将该曲线的分析方法对某系列数控机床的故障等级与故障发生频率的关系进行分析。根据b值的计算公式并将其进行优化,利用优化后的b值公式得出b值的计算结果,增强故障频次在b值计算中的应用,初步给出b值的变化与数控机床故障发生的关联,从而在数控机床故障的预测中得到应用。更多还原

【Abstract】 G-R curve is an important analysis curve in seismicprediction,which is used to forecast the probability of earthquake. The variance of b-value can reflect the degree of seismic activities in an area. The paper uses G-R curve to analyze the relations between the fault levels and fault frequency of some series of CNC machine tools. According to the calculation formula of b-value and the optimized formula of b-value results,we can draw the relations between variance of b-value and faults occurrence of CNC machine tools.Thus we can use b-value to predict the faults of the CNC machine tools.更多还原