结构裂纹损伤的残差辨识预测

Residual Foucast of Crack Failure in Structure

根据灰色预测理论，以简支梁为例，应用残差辨识模型预测，对不同深度的裂纹梁固有频率进行了预测和残差检验研究，得出可以通过残差辨识预测对结构的损伤程度进行诊断．

Based on the theory of grey forecast, this paper researched the inherent frequency ofthe sincplified ham with crack of different depth. It was found that the failure degree instructure could be diagnosed through the residual identification forecast.