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New Insights into Multidisciplinary Design Optimization

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Aerospace Science and Engineering".

Deadline for manuscript submissions: closed (20 November 2024) | Viewed by 1338

Special Issue Editors


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Guest Editor
ONERA-The French Aerospace Lab, 91120 Palaiseau, France
Interests: the design of aerospace systems; multidisciplinary design optimization; uncertainty quantification; reliability-based design optimization
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
ONERA-The French Aerospace Lab, 91120 Palaiseau, France
Interests: multidisciplinary design optimization; uncertainty quantification; machine learning for the design of complex systems; mixed discrete/continuous optimization; aerospace vehicle design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the field of complex system engineering (e.g. aerospace, automotive, energy, civil engineering), designers must manage increasingly challenging requirements. System specifications are narrowing due to factors such as safety regulations, environmental constraints, and cost considerations. Development timelines are contracting, and the imperative to establish system performance quickly and with sufficient accuracy adds another layer of complexity. The design of complex systems involves a multidisciplinary process that couples various domains, including aerodynamics, propulsion, structures, electric/hydraulic systems, and guidance, navigation, and control. Each of these areas encompasses distinct groups of highly skilled experts and relies on advanced high-fidelity simulation models.

To face these challenges, multidisciplinary design optimization has become a standard for apprehending the complexity of process design. This multidisciplinary process serves as a paradigm for general complex engineering systems, as traditional design approaches cannot deal with extensive, costly numerical simulations. This shift not only reduces design process expenses but also mitigates risks and accelerates development timelines. Addressing the challenges inherent in complex engineering system design leads to the need for advanced mathematical algorithms for design exploration and optimization. This Special Issue aims to showcase the latest approaches and applications involved in multidisciplinary system analysis and optimization. This study focuses on diverse areas, including advancements in surrogate modeling, multidisciplinary design analysis and optimization, uncertainty quantification, dimension reduction, multifidelity modeling, and machine learning.

Dr. Mathieu Balesdent
Dr. Loïc Brevault
Guest Editors

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Keywords

  • multidisciplinary analysis and optimization
  • optimization algorithms
  • multifidelity simulation
  • uncertainty quantification
  • reliability-based design optimization
  • design under uncertainty
  • surrogate modeling
  • sensitivity analysis

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Published Papers (1 paper)

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Research

32 pages, 2464 KiB  
Article
Wasserstein-Based Evolutionary Operators for Optimizing Sets of Points: Application to Wind-Farm Layout Design
by Babacar Sow, Rodolphe Le Riche, Julien Pelamatti, Merlin Keller and Sanaa Zannane
Appl. Sci. 2024, 14(17), 7916; https://doi.org/10.3390/app14177916 - 5 Sep 2024
Viewed by 864
Abstract
This paper introduces an evolutionary algorithm for objective functions defined over clouds of points of varying sizes. Such design variables are modeled as uniform discrete measures with finite support and the crossover and mutation operators of the algorithm are defined using the Wasserstein [...] Read more.
This paper introduces an evolutionary algorithm for objective functions defined over clouds of points of varying sizes. Such design variables are modeled as uniform discrete measures with finite support and the crossover and mutation operators of the algorithm are defined using the Wasserstein barycenter. We prove that the Wasserstein-based crossover has a contracting property in the sense that the support of the generated measure is included in the closed convex hull of the union of the two parents’ supports. We introduce boundary mutations to counteract this contraction. Variants of evolutionary operators based on Wasserstein barycenters are studied. We compare the resulting algorithm to a more classical, sequence-based, evolutionary algorithm on a family of test functions that include a wind-farm layout problem. The results show that Wasserstein-based evolutionary operators better capture the underlying geometrical structures of the considered test functions and outperform a reference evolutionary algorithm in the vast majority of the cases. The tests indicate that the mutation operators play a major part in the performances of the algorithms. Full article
(This article belongs to the Special Issue New Insights into Multidisciplinary Design Optimization)
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