Toward the Realization of a Highly Integrated, Multidisciplinary, Multifidelity Design Environment

Bryson, Dean E.; Haimes, Robert; Dannenhoffer, John F.

doi:10.2514/6.2019-2225

Cited by 19 publications

(5 citation statements)

References 29 publications

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“…The approaches comprise among other things such as software programs [33], multidisciplinary design and analysis (MDA) environments (e.g., [32,[34][35][36][37]), multidimensional frameworks to enhance collaboration and synchronisation between separated disciplines [38], as well as processes to support multidisciplinary virtual design and assessment [39]. Current research fosters the realisation of highly integrated, multidisciplinary design environments [40]. These must reflect the inherent interdependencies of data and support its handling and utilisation, as well as structured knowledge pooling across various layers of interest and involved actors from multidisciplinary backgrounds [40,41].…”

Section: Management Of Multidisciplinary Datamentioning

confidence: 99%

“…Current research fosters the realisation of highly integrated, multidisciplinary design environments [40]. These must reflect the inherent interdependencies of data and support its handling and utilisation, as well as structured knowledge pooling across various layers of interest and involved actors from multidisciplinary backgrounds [40,41].…”

Section: Management Of Multidisciplinary Datamentioning

confidence: 99%

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Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools

et al. 2020

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Driven by concerns regarding the sustainability of aviation and the continued growth of air traffic, increasing interest is given to emerging aircraft technologies. Although new technologies, such as battery-electric propulsion systems, have the potential to minimise in-flight emissions and noise, environmental burdens are possibly shifted to other stages of the aircraft’s life cycle, and new socio-economic challenges may arise. Therefore, a life-cycle-oriented sustainability assessment is required to identify these hotspots and problem shifts and to derive recommendations for action for aircraft development at an early stage. This paper proposes a framework for the modelling and assessment of future aircraft technologies and provides an overview of the challenges and available methods and tools in this field. A structured search and screening process is used to determine which aspects of the proposed framework are already addressed in the scientific literature and in which areas research is still needed. For this purpose, a total of 66 related articles are identified and systematically analysed. Firstly, an overview of statistics of papers dealing with life-cycle-oriented analysis of conventional and emerging aircraft propulsion systems is given, classifying them according to the technologies considered, the sustainability dimensions and indicators investigated, and the assessment methods applied. Secondly, a detailed analysis of the articles is conducted to derive answers to the defined research questions. It illustrates that the assessment of environmental aspects of alternative fuels is a dominating research theme, while novel approaches that integrate socio-economic aspects and broaden the scope to battery-powered, fuel-cell-based, or hybrid-electric aircraft are emerging. It also provides insights by what extent future aviation technologies can contribute to more sustainable and energy-efficient aviation. The findings underline the need to harmonise existing methods into an integrated modelling and assessment approach that considers the specifics of upcoming technological developments in aviation.

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Section: Management Of Multidisciplinary Datamentioning

confidence: 99%

Section: Management Of Multidisciplinary Datamentioning

confidence: 99%

Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools

et al. 2020

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“…Centralized geometry definition for all involved disciplines and fidelity levels [51,52] is often touted as the means of assuring interdisciplinary consistency in an MDO context. In terms of the goal, however, it is disadvantageous.…”

Section: Relation To Other Conceptsmentioning

confidence: 99%

Cybermatrix Protocol: A Novel Approach to Highly Collaborative and Computationally Intensive Multidisciplinary Aircraft Optimization

Ilić

Merle

Abu-Zurayk

et al. 2020

Aiaa Aviation 2020 Forum

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“…Practical boundaries on computational resource naturally limit subsystem modelling towards inexpensive, less accurate and/or flexible numerical/empirical methods. Performance predictions may thus be misleading, failing to represent significant design behaviour or interdisciplinary coupling (Christensen and Willcox, 2012;Robinson, 2012;Bryson et al, 2019). This can ultimately lead to sub-optimal designs and/or increased development costs as a result of later stage alteration (Allaire and Willcox, 2014).…”

Section: Introductionmentioning

confidence: 99%

A multi-fidelity model management framework for multi-objective aerospace design optimisation

Parsonage

Maddock²

2023

Front. Aerosp. Eng.

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This paper presents a multi-fidelity meta-modelling and model management framework designed to efficiently incorporate increased levels of simulation fidelity from multiple, competing sources into early-stage multidisciplinary design optimisation scenarios. Phase specific/invariant low-fidelity physics-based subsystem models are adaptively corrected via iterative sampling of high(er)-fidelity simulators. The correction process is decomposed into several distinct parametric/non-parametric stages, each leveraging alternate aspects of the available model responses. Globally approximating surrogates are constructed at each degree of fidelity (low, mid, and high) via an automated hyper-parameter selection and training procedure. The resulting hierarchy drives the optimisation process, with local refinement managed according to a confidence-based multi-response adaptive sampling procedure, with bias given to global parameter sensitivities. An application of this approach is demonstrated via the aerodynamic response prediction of a parametrized re-entry vehicle, subjected to a static/dynamic parameter optimisation for three separate single-objective problems. It is found that the proposed data correction process facilitates increased efficiency in attaining a desired approximation accuracy relative to a single-fidelity equivalent model. When applied within the proposed multi-fidelity management framework, clear convergence to the objective optimum is observed for each examined design optimisation scenario, outperforming an equivalent single-fidelity approach in terms of computational efficiency and solution variability.

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Toward the Realization of a Highly Integrated, Multidisciplinary, Multifidelity Design Environment

Cited by 19 publications

References 29 publications

Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools

Sustainability Assessment and Engineering of Emerging Aircraft Technologies—Challenges, Methods and Tools

Cybermatrix Protocol: A Novel Approach to Highly Collaborative and Computationally Intensive Multidisciplinary Aircraft Optimization

A multi-fidelity model management framework for multi-objective aerospace design optimisation

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