Engine Pylon Topology Optimization Framework Based on Performance and Stress Criteria

Simone Coniglio (1, 2) , Christian Gogu (1) , Rémi Amargier (3, 2) , Joseph Morlier (1)

1 ICA - Institut Clément Ader
2 Airbus [France]
3 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

Reducing fuel consumption is a major driver for the design of future aircraft. The engine integration primary structure plays a significant role in the integrated engine thrust-specific fuel consumption. A topology optimization framework was developed to design the primary structure integrating the engine to the aircraft wing considering mass, stress, and engine performance criteria. The proposed approach had to address several challenges associated with the use of nonuniform meshes, the integration of the engine model as a super-element, and the presence of nonconforming mesh interfaces. Analytical adjoint evaluations for all the responses were also derived. The framework was tested on a simplified engine model providing a consistent solution.

Mots clés: Engine Pylon; Topology Optimization; Stress Criteria

Domaines: Génie mécanique [physics.class-ph]

Simone Coniglio, Christian Gogu, Rémi Amargier, Joseph Morlier. Engine Pylon Topology Optimization Framework Based on Performance and Stress Criteria. AIAA Journal, 2019, 57 (12), pp.5514-5526. ⟨10.2514/1.J058117⟩. ⟨hal-02302631⟩