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An optimization-based approach for supporting early product architecture decisions

Visakha Raja (Institutionen för produkt- och produktionsutveckling) ; Ola Isaksson (Institutionen för industri- och materialvetenskap, Produktutveckling) ; Mikael Kokkolaras (Institutionen för produkt- och produktionsutveckling, Produktutveckling)
21st International Conference on Engineering Design, ICED 2017, Vancouver, Canada, 21-25 August 2017 (2220-4342). Vol. 4 (2017), p. 377-384.
[Konferensbidrag, refereegranskat]

An important aspect in designing the product architecture of turbo fan engine structural components is the load path and flow path of the components. We present an approach for deciding the preliminary load carrying configuration or LCC (arrangement of structural elements to carry loads) for a generic, static engine structure during early design phases. The LCC, which is a part of the load path aspect, withstands multiple load cases during engine operation. Each such load case for the LCC can be represented as an interface stiffness optimization problem. Our approach for deciding the preliminary LCC involves individual consideration of a number of problems (load cases), down-selecting a small number of interesting problems, and running a coordinated optimization for the down-selected problems using the non-hierarchical coordination. The optimization yields a compromise solution that can be considered as a starting point for detail design of the integrated product. This approach may allow better design resources allocation, as the obtained solution satisfies a number of load cases on the structure.

Nyckelord: Early design phases, Product architecture, Multi- / Cross- / Trans-disciplinary processes

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Denna post skapades 2017-08-31. Senast ändrad 2017-10-11.
CPL Pubid: 251543


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Institutioner (Chalmers)

Institutionen för produkt- och produktionsutveckling (1991-2017)
Institutionen för industri- och materialvetenskap, Produktutveckling
Institutionen för produkt- och produktionsutveckling, Produktutveckling (2005-2017)



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