Damage Location Indicators from Substructure Mode Shapes
H Ahmadian (Iran University of Science and Technology), JE Mottershead (Liverpool University) & MI Friswell (University of Wales Swansea)
Inverse Problems in Engineering, Vol. 8, No. 4, August 2000, pp. 309-323
When damage occurs in a substructure its modes of vibration will be changed but the modes of other substructures will be unaffected. Also the higher modes will not participate in the deflections of undamaged substructures. These observations are used to establish the necessary and sufficient conditions that identify an undamaged substructure. Two damage location indicators are then formulated and applied to a numerical example. Both indicators are successful in locating the damage.
This material has been published in the Inverse Problems in Engineering, Vol. 8, No. 4, August 2000, pp. 309-323, the only definitive repository of the content that has been certified and accepted after peer review. The copyright has been assigned to Gordon and Breach Science Publishers.
Link to paper using doi:10.1080/174159700088027733
Inverse Problems in Engineering