论文信息 - Simultaneous Mass, Damping, and Stiffness Updating for Dynamic Systems

Simultaneous Mass, Damping, and Stiffness Updating for Dynamic Systems

different modes associated with the mathematical and experimental models, respectively. Two numerical examples are demonstrated: a 4-degree-of-freedom mass–spring–damper system and a 30-degree-of-freedom finite element model for a cantilever beam. The numerical updating by the cross-model cross-mode method is excellent for all system matrices when the measured modes are spatially complete and noise free. The cross-model cross-mode method, together with the Guyan reduction scheme, also performs reasonably well under a spatial incompleteness situation.

Huajun Li | Sau-Lon James Hu

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