Some meta-modeling and optimization techniques for helicopter pre-sizing.

A. Tremolet (1) , P.M. Basset (2)

1 Département Commandes des Systèmes et Dynamique du Vol
2 ONERA - The French Aerospace Lab [Salon]

Optimization and meta-models are key elements of modern engineering techniques. The Multidisciplinary Design Optimization (MDO) allows solving strongly coupled physical problems aiming at the global system optimization. For these multidisciplinary optimizations, meta-models can be required as surrogates for complex and high computational cost codes. Meta-modeling is also used for catching general trends and underlying relationships between parameters within a database. The application of these mathematical techniques to the pre-design of rotorcraft is well relevant. Indeed rotorcraft pre-sizing is a multidisciplinary issue involving flight dynamics, aerodynamics, power generation, structures, ... Moreover the rotorcraft databases requires meta-modeling techniques to be useful. This paper presents several techniques studied by ONERA in the C.R.E.A.T.I.O.N. project. The practical case considered here deals with the helicopter main rotor optimization.

Mots clés: ROTORCRAFT; PRELIMINARY DESIGN; MULTI OBJECTIVE OPTIMIZATION; ROTOR PRESIZING; MDO

Domaines: Modélisation et simulation

A. Tremolet, P.M. Basset. Some meta-modeling and optimization techniques for helicopter pre-sizing.. 38th European Rotorcraft Forum, Sep 2012, AMSTERDAM, Netherlands. ⟨hal-01061105⟩