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9 March 2014 An optimal approach in negative derivative feedback control gain synthesis
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Vibration control logics based on the modal approach allow to increase damping on a certain number of modes. The main limit associated with these strategies is represented by spillover on non modeled modes. Negative Derivative Feedback shows to be particularly robust against spillover since modal velocity is fed back through a band-pass filter so that undesired effects can be limited both at high and low frequencies. In this paper a design strategy for NDF controller based on an optimal approach is proposed for single and multi-degrees of freedom systems and tested on a cantilever beam finite element model.
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Francesco Ripamonti, Flavio Cola, and Ferruccio Resta "An optimal approach in negative derivative feedback control gain synthesis", Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90571U (9 March 2014);

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