The nonlinear motion of a suspended cable in the vertical plane is studied. It is modeled through reduced analytical models and from these models the observability issues associated with the inverse problem are discussed in view of the structural control policy to be adopted. The investigated items are: i) the minimal number of sensors to be placed along the cable; ii) the best positioning of the sensors; iii) the asymptotic stability of a nonlinear state observer. Numerical simulations are also performed in order to test the effectiveness of the proposed observer under large amplitude forced oscillations.
Observability issues in the vibration of cables
UBERTINI, Filippo
2007
Abstract
The nonlinear motion of a suspended cable in the vertical plane is studied. It is modeled through reduced analytical models and from these models the observability issues associated with the inverse problem are discussed in view of the structural control policy to be adopted. The investigated items are: i) the minimal number of sensors to be placed along the cable; ii) the best positioning of the sensors; iii) the asymptotic stability of a nonlinear state observer. Numerical simulations are also performed in order to test the effectiveness of the proposed observer under large amplitude forced oscillations.File in questo prodotto:
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