Bp network train sample mode analyse the income by finite element model Bp網(wǎng)絡(luò)訓(xùn)練樣本由有限元模型模態(tài)分析所得。
Since the structural dynamic characteristic will be changed with its damage , the great difference of structural frequency exists between the theoretical value and the practical value . the problem we are confronted with is how to correct structural fem to make the theoretical value equal to the practical value 由于模型描述實(shí)際結(jié)構(gòu)的不精確性,結(jié)構(gòu)模態(tài)參數(shù)的實(shí)測值與有限元理論值之間常常存在較大的差異,因而迫切需要解決的問題便是如何對有限元模型進(jìn)行修正,使得模型模態(tài)特性的理論值趨近于實(shí)測值。