基于多表达式编程与频率等高线相结合的结构裂纹检测

在将进化算法用于裂纹诊断的基础上,对结构裂纹定位进行了深入分析和研究。将结构固有频率作为裂纹的诊断参数,根据频率等高线的交点及多表达式编程模型的预测结果来定位结构裂纹。实验结果表明该方法能够有效地融合二者的优点，实现裂纹快速、准确定位。

Crack fault diagnosis based on MEP and frequency contour lines

On the basis of a traditional evolutionary algorithm,a new method of crack fault diagnosis is discussed.The method uses the inherent frequencies as crack diagnostic parameters.According to the intersection point of frequency contour lines and the forecasted results of MEP,the structural crack position is located.The results show that the method can effectively integrate both advantages and achieve rapid and accurate location of the crack.