Vereinfachtes Verfahren zur Abschätzung der Wirkung der Nichtlinearität der aerodynamischen Koeffizienten

Wind analysis of a structure subjected to non-linear random dynamic loading
Since the early developments in wind engineering, aerodynamic coefficients have been linearized in turbulence analysis. On the other hand general and complex methods based on generalized power spectral densities can now handle this kind of non linearity. Between these two extremes, it would be desirable to give simple estimation of the effects of the non linearity of aerodynamic coefficients on the response of structures.
This paper aims at giving an overview of these general and complex methodologies (that could be applied in other contexts), and, in a second step, presenting an original procedure to give estimation of the effects of the non linearity of aerodynamic coefficients. This procedure will be illustrated on the drag coefficient of the Viaduct of Millau