Research Article

An Improved Finite Element Model Updating Method Based on the Singular Values of Frequency Response Functions

Table 3

Damage state of truss model.

Damage stateSpecific damage situation

S0No damage
S1Elasticity modulus of the lower rod elements is damaged by 20%
S2Elasticity modulus of the lower rod elements is damaged by 20%; elasticity modulus of the middle rod elements is damaged by 30%; elasticity modulus of the upper rod elements is damaged by 25%