Condition Monitoring of Structures Using Transient Response

Condition monitoring of structures by measuring transient response and tracking the derived modal parameters has been applied with success in three laboratory studies. Where modal parameters are a function of cross section properties, as in bending elements, direct relations may be obtained between response changes and deterioration. Where modal parameters are not a function of cross section properties, as in lateral vibration of wire ropes, laboratory studies indicated that modal damping coefficients might support condition monitoring. The use of transient response and the particular focus on natural frequencies and damping coefficients can provide a means of passive condition monitoring of structures.