Surrogate based optimization of helicopter rotor blades for vibration reduction in forward flight
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TLDR
The results indicate that the kriging surrogates are the best for approximating vibratory hub loads over the entire design space and and the surrogates can be used effectively in helicopter rotor vibration reduction studies.Abstract:
The effectiveness of surrogate modeling of helicopter vibrations, and the use of the surrogates for minimization of helicopter rotor vibrations are studied. The accuracies of kriging, radial basis function interpolation, and polynomial regression surrogates are compared. In addition, the surrogates are used to generate an objective function which is employed in an optimization study. The design variables consist of the cross-sectional dimensions of the structural member of the blade and non-structural masses. The optimized blade is compared with a baseline rotor blade which resembles an MBB BO-105 blade. Results indicate that: (a) kriging surrogates best approximate vibratory hub loads over the entire design space and (b) the surrogates can be used effectively in helicopter rotor vibration reduction studies.read more
Citations
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Multiple-Surrogate Approach to Helicopter Rotor Blade Vibration Reduction
TL;DR: In this article, the advantages of using multiple surrogates for approximation and reduction of helicopter vibration are studied, and the optimized designs are compared with a baseline design resembling a Messerschmitt-Bolkow-Blohm BO-105 blade.
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MISO: mixed-integer surrogate optimization framework
TL;DR: A general surrogate model framework is developed and it is shown how sampling strategies of well-known surrogate model algorithms for continuous optimization can be modified for mixed-integer variables and how to combine different sampling strategies and local search to obtain high-accuracy solutions.
Journal ArticleDOI
Surrogate based optimization of helicopter rotor blades for vibration reduction in forward flight
TL;DR: In this paper, the effectiveness of surrogate modeling of helicopter vibrations, and the use of the surrogates for minimization of helicopter rotor vibrations are studied, and accuracies of kriging, radial basis function interpolation, and polynomial regression surrogates are compared.
References
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