Towards Robust Turbomachinery Design: Parametric Blade Synthesis Based On Quality Control Data

Philip Magin, Florian Danner, Matthias Binz, Christoph Keller
2018 Zenodo  
The present study is focused on applying data acquired from quality control systems on a finite number of airfoil test sections, to parametrically synthesize three-dimensional blade designs with dimensional deviations. The paper comprises a discussion on the required input data, theoretical considerations on the underlying blade parametrization, description of mathematical manipulations for transforming position, distance and angle measurements to the geometrical design parameters as well as
more » ... eters as well as practical applications of the implemented process to a closed loop test case. Evaluating the presented test case allows to quantify the degree to which random samples with dimensional deviations can be parametrically synthesized such that the statistical characteristics of the original set of samples are resembled. This allows to draw conclusions on the suitability of the chosen parametrization and to formulate practical implications on the statistical input data required for synthesizing blade geometries. The findings help to define an appropriate blade parametrization and provide the basis for probabilistically assessing turbomachinery geometries during the design phase through a priori regarding geometrical uncertainties for fluid dynamic, structural mechanics or coupled simulations.
doi:10.5281/zenodo.1344574 fatcat:64fada4wejfkfeb27wdiahknje