A Space-Time Accurate Finite-State Inflow Model for Aeroelastic Applications
Massimo Gennaretti, Riccardo Gori, Felice Cardito, Jacopo Serafini, Giovanni Bernardini, Roma Tre University
May 17, 2016
A Space-Time Accurate Finite-State Inflow Model for Aeroelastic Applications
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- SKU # : 72-2016-222
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A Space-Time Accurate Finite-State Inflow Model for Aeroelastic Applications
Authors / Details: Massimo Gennaretti, Riccardo Gori, Felice Cardito, Jacopo Serafini, Giovanni Bernardini, Roma Tre UniversityAbstract
Dynamic wake inflow modelling is one of the main issues in the development of efficient and high-fidelity simulation tools for design of new generation rotorcraft. The aim of this paper is the development of a LTI, space-accurate, finitestate model for the prediction of dynamic wake inflow perturbations of helicopter rotors in arbitrary steady flight, extracted from high-fidelity aerodynamics solvers. The proposed dynamic wake inflow model, coupled with sectional aerodynamic load theories, may be conveniently applied for aeroelastic and aero-servo-elastic analysis of rotors with the introduction of a limited number of additional states, thus turning out to be suitable for real-time predictions. The outcomes of numerical investigations concerning a helicopter rotor in hovering and forward flight conditions are shown to demonstrate the capability of the introduced model to capture with a good level of accuracy the time evolution of the wake inflow radial distribution on blades of rotors subject to arbitrary perturbations.
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A Space-Time Accurate Finite-State Inflow Model for Aeroelastic Applications
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