10 April 2013 An active control logic to improve the fatigue strength of smart flexible structures
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Abstract
In general active vibration control intrinsically implies a fatigue damage reduction. Anyway, this assumption is not always verified. In these cases it is possible to deeper investigate the fatigue phenomena on smart flexible structures and their reduction from a control point of view. In this article, to identify the problem main parameters, a simplified interpretation of fatigue damage is given using the frequency analysis framework. Then, the active control logic is defined as an optimization problem with a quadratic functional taking into account the previously cited parameters. Finally, because of non-linearity of fatigue phenomenon, an adaptive approach is applied and a numerical/experimental validation is carried out.
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Pasquale Ambrosio, Pasquale Ambrosio, Francesco Braghin, Francesco Braghin, Ferruccio Resta, Ferruccio Resta, Francesco Ripamonti, Francesco Ripamonti, } "An active control logic to improve the fatigue strength of smart flexible structures", Proc. SPIE 8688, Active and Passive Smart Structures and Integrated Systems 2013, 86881U (10 April 2013); doi: 10.1117/12.2009678; https://doi.org/10.1117/12.2009678
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