Pylon and engine mounts performance driven structural topology optimization
| Autor: | Simone Coniglio, Joseph Morlier, Rémi Amargier, Christian Gogu |
|---|---|
| Přispěvatelé: | Institut Clément Ader (ICA), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), Airbus [France], Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Rotor (electric)
Stator Nacelle Computer science business.industry Thrust 02 engineering and technology Structural engineering 01 natural sciences 7. Clean energy Finite element method Turbofan law.invention 010101 applied mathematics [PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] Tip clearance 020303 mechanical engineering & transports 0203 mechanical engineering law Thrust specific fuel consumption 0101 mathematics business |
| Zdroj: | WCSMO12 12th World Congress of Structural and Multidisciplinary Optimization 5-9 June 2017, Braunschweig, Germany WCSMO12 12th World Congress of Structural and Multidisciplinary Optimization 5-9 June 2017, Braunschweig, Germany, 2017, Braunschweig, Germany Advances in Structural and Multidisciplinary Optimization ISBN: 9783319679877 |
| Popis: | International audience; Engine deformations during operation are an increasing concern for engine performances. The tip-clearance, defined as the radial gap between the blade tip and the engine casing, can show small variations induced by aircraft maneuvers. These variations can produce increased tip leakage flow, secondary flows and vortex losses that can sensibly increase the engine trust specific fuel consumption (TSFC). In this paper the impact of pylon and nacelle design parameters on in-operation engine performance and overall mass is investigated for a turbofan engine. The structural behavior of the integrated engine will be simulated thanks to a linear finite element model that models the mechanical behavior of the engine under different load cases. Both rotor and stator are modelled to evaluate tip clearance deformations at different engine stages. In a first order approach these engine deformations are evaluated as the difference of radial displacements of superposed points of rotor and stator relative to blade tip. Then an in house performance engine model evaluates thrust specific consumption as a function of the tip clearances. In this paper, two structural optimization studies are conducted on a simple generic engine model in order investigate two different approaches to optimize the engine-pylon attachment. In the first study a classic statically determined engine mount system is considered and thrust link position and attachment points are made varying. In the second one, a topology optimization framework is developed and implemented to optimize from scratch the topology of the pylon-engine attachment design zone. |
| Databáze: | OpenAIRE |
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