MDO
People involved: F.Toffol, A.De Gaspari, G.Bindolino, G.L.Ghiringhelli
Many of the most important studies concerning the structural optimisation arose in the field of aerospace systems design. Different are the reasons. The first one is obvious : for this kind of systems the structural efficiency represents the main objective of the design. The ratio between the total weight and the structural one is probably the highest if compared with other industrial applications, and consequently the use of automatic methods capable to design the "best" structure in terms of mass saving is certainly very important in the design of such structures. But this is not the only reason. If we analyse the trend in the optimisation methods during the last 20 years we discover that there is a notable conceptual difference among the first methods and the actual ones. In the first methods the main objective of the computation was the minimisation of the structural weight, subject to simple structural constraints, i.e. stresses and displacements. The present ones, on the other hand, represent a very complex tools characterised by a high degree of interdisciplinarity, capable to consider many and different kind of problems, involving several and contradictory requirements, where the structural weight is only one of the possible structural responses.
Researches performed in the MDO field are related to the development of new methodologies as well as to the integration of already available analysis tools into optimization environment based on the use of metamodels.
Recently, a new tool deevloped inside NeoCASS suite, named NeOpt, introduced the possibility to combine the simplicity of the stick model for aeroelastic analysis to a more detailed 3D model of the wingbox, to perform multifidelity aero.servo.elastic optimization. This tool has been validated in the case of conventional configuration and it is now used for the design of high and ultra hig aspect ratio wings.
Related projects:
- Ultra High Aspect Ratio Wing Advanced Research and Designs - U-HARWARD (CS2-THT, 2020-2023)
- Advanced Wing And High-Lift Design - AWAHL (FP5, 2011-2012)
Related publications:
- Marchetti, L., Toffol, F., Ricci, S., Beretta, J., Paletta, N., Aeroelastic Optimization of High Aspect Ratio Wings for Environmentally Friendly Aircraft, AIAA Scitech 2022 Forum, AIAA, 2022, ISBN: 9781624106316, p. 1-11, AIAA 2022-0166, San Diego, CA, USA & Virtual Conference, 3-7 Jan. 2022], DOI:10.2514/6.2022-0166
- Toffol, F., Ricci, S., Wingbox Meta-Model and Aero-Servo-Elastic Optimization With NEOPT, International Conference on Multidisciplinary Design Optimization of Aerospace Systems (AeroBest 2021), A.C. Marta, A.Suleman (Eds.), IDMEC, 2021, ISBN: 9789899942486, p. 501-515, Lisbon, Portugal, 21-23 July 2021.Toffol, F., Ricci, S., Aero-Servo-Elastic Optimization in Early Design Phases, Paper presented at: 26th Conference of the Italian Association of Aeronautics and Astronautics (AIDAA 2021), 2021, p. 1-5, Online Event, 31 Aug.-3 Sept. 2021.
- Zhang, Z.,Yang, Y., Ricci, S., De Gaspari, A.,Song, C.,Yang, C.,Aeroservoelastic Optimization of a High Aspect Transport Wing with Morphing Trailing Edge, 32nd Congress of the International Council of the Aeronautical Sciences (ICAS2021), International Council of the Aeronautical Sciences, 2021, ISBN: 9783932182914, p. 1-11, ICAS2020_0631, Shanghai, China, 6-10 Sept. 2021.
- Toffol, F., Ricci, S., NeOPT: an Optimization Suite for the Aeroelastic Preliminary Design, Paper presented at: 18th International Forum on Aeroelasticity and Structural Dynamics (IFASD 2019), 2019, p. 1-19, IFASD 2019-020, Savannah, GA, USA, 10-13 June 2019.
- Bindolino, G., Ghiringhelli, G.L., Ricci, S., Terraneo, M., Winbox Weight Estimation for Metallic and Composite Manufacturing in a Conceptual Design Phase, Paper presented at: 23rd Conference of the Italian Association of Aeronautics and Astronautics (AIDAA 2015), Torino, Italy, 17-19 Nov. 2015, p. 1-20.
- Travaglini, L., Ricci, S., Bindolino, G., Introduction and application of PyPAD, a framework for multidisciplinary airframe design, 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 2015, Curran Associates, Red Hook, NY, 2015, ISBN: 9781510801141, p. 480-508, AIAA 2015-0186 [56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - AIAA SciTech 2015, Kissimmee, Fl, USA, 5-9 Jan. 2015], DOI: 10.2514/6.2015-0186
- Bindolino, G., Ghiringhelli, G.L., Ricci, S., Terraneo, M., "Multilevel Structural Optimization for Preliminary Wing-Box Weight Estimation", Journal of Aircraft, vol. 47, p. 475-489, ISSN: 0021-8669, doi: 10.2514/1.41552
- Bindolino, G., Mantegazza, P., Ricci, S., "Integrated Servostructural Optimization in the Design of Aerospace Systems", Journal of Aircraft, vol. 36, p. 167-175, ISSN: 0021-8669, doi: 10.2514/2.2423