A tool for helicopter rotor blade design to improve performance and reduce rotor dynamics loads as well as aeroacoustic noise i presented. The optimization procedure is based on a genetic algorithm and a feasible direction technique. The former is used as a global optimizer, whereas the latter is used to refine the solution. The comprehensive analysis codes used to compute rotor performance, noise and loads are an Augusta proprietary code and CAMRAD-JA. Applications of this methodology to a twin engine light helicopter in different operative conditions are illustrated and discussed using both geometrical and structural parameters as design variables and different choices of the multi constrained objective function.
A hybrid numerical optimisation technique based on Genetic and Feasible Direction Algorithms for multipoint helicopter rotor blade design
POLONI, CARLO
1995-01-01
Abstract
A tool for helicopter rotor blade design to improve performance and reduce rotor dynamics loads as well as aeroacoustic noise i presented. The optimization procedure is based on a genetic algorithm and a feasible direction technique. The former is used as a global optimizer, whereas the latter is used to refine the solution. The comprehensive analysis codes used to compute rotor performance, noise and loads are an Augusta proprietary code and CAMRAD-JA. Applications of this methodology to a twin engine light helicopter in different operative conditions are illustrated and discussed using both geometrical and structural parameters as design variables and different choices of the multi constrained objective function.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
