... characteristics of OWTs from the structural geometrical, material properties, environmental, and soil uncertainties by conducting SA. Primarily, an improved method integrating the polynomial chaos expansion (PCE) strategy with the traditional Morris screening method was proposed to accelerate the SA process...

... of the system model output with respect to the uncertainties residing in the input parameters by operating on a surrogate model representation. In this respect, the global sensitivity analysis was effectively carried out by deploying an efficient nonintrusive polynomial chaos expansion surrogate model built...