Thesis defence M.F.M. Hoogreef: MDO Architectures

07 July 2017 10:00 - Location: Aula, TU Delft - By: Webredactie

Multidisciplinary Design Optimization (MDO) is a methodology enabling the incorporation and exploitation of disciplinary interactions in designs (e.g. between aerodynamics and structures in aircraft), through dedicated mathematical formulations and structured computation strategies. It can help improve existing solutions and develop innovative/unconventional designs.

However, MDO has not yet been fully exploited in industry. Its benefits have mainly been demonstrated on academic problems by experts in optimization. Particularly because of the intrinsic complexity to translate a ``real case'' multidisciplinary problem into a correct MDO formulation and the complex, lengthy and error-prone process to integrate (even well-) formalized MDO problems into an executable workflow. Additionally, there is a lack of awareness and understanding of the many established MDO architectures (i.e. the formal strategies to organize and coordinate the various computational components of an MDO system) and their specific suitability to solve problems of different nature.

This research proposes a methodology, together with a prototype software implementation, with the objective to support both experienced and novel MDO users. InFoRMA (Integration, Formalization and Recommendation of MDO Architectures) assists a user with the formal definition of the MDO problem, suggests a suitable MDO architecture, automatically represents an MDO problem according to a selected architecture’s definition and automatically integrates the formalized problem in an executable workflow, removing the software-intensive manual steps.

InFoRMA has been applied to a set of case studies, demonstrating the automatic formalization of MDO problems by means of eight common MDO architectures, reducing the setup time of any MDO workflow from hours to minutes and giving limited advice for novel MDO users. For an industrial problem, a time reduction of 90% was achieved for the correct setup of the problem. 

Advise, Formalize and Integrate MDO Architectures - A Methodology and Implementation. Promotor: Prof.dr.ir. L.L.M. Veldhuis (LR).

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