Optimal allocation of design margins in additive remanufacturing
Paper in proceeding, 2021

Often, coping with changing requirements results in substantial overdesign, because of the ways in which design margins are allocated at the beginning of the design process. In this paper, we present a design optimization method for minimizing overdesign using additive manufacturing. We use recently defined constituents of design margins (buffer and excess) as metrics in a design optimization problem to minimize overdesign. The method can be used to obtain optimal design decisions for changing requirements. We demonstrate our method by means of a turbine rear structure design problem where changes in the temperature loads are met by depositing different types of stiffeners on the outer casing. The optimal decisions obtained by optimization minimize overdesign but ensure that requirements are met throughout the product's lifecycle.

Author

Khalil Al Handawi

McGill University

Massimo Panarotto

Chalmers, Industrial and Materials Science, Product Development

Petter Andersson

GKN Aerospace Services

Ola Isaksson

Chalmers, Industrial and Materials Science, Product Development

Michael Kokkolaras

McGill University

Proceedings of the ASME Design Engineering Technical Conference

Vol. 3B-2021 V03BT03A047
9780791885390 (ISBN)

47th Design Automation Conference, DAC 2021, Held as Part of the ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2021
Virtual, Online, ,

Subject Categories

Production Engineering, Human Work Science and Ergonomics

Aerospace Engineering

Other Engineering and Technologies not elsewhere specified

Areas of Advance

Production

DOI

10.1115/DETC2021-69378

More information

Latest update

12/30/2021