A lifecycle cost-driven system dynamics approach for considering additive re-manufacturing or repair in aero-engine component design

DS 94: Proceedings of the Design Society: 22nd International Conference on Engineering Design (ICED19)

Year: 2019
Editor: Wartzack, Sandro; Schleich, Benjamin; Gon
Author: Lawand, Lydia (1); Al Handawi, Khalil (1); Panarotto, Massimo (2); Andersson, Petter (3); Isaksson, Ola (2); Kokkolaras, Michael (1,2)
Series: ICED
Institution: McGill University
Section: Design methods and tools
DOI number: https://doi.org/10.1017/dsi.2019.140
ISSN: 2220-4342


Aero-engine component design decisions should consider re-manufacturing and/or repair strategies and their impact on lifecycle cost. Existing design approaches do not account for alternative production technologies such as the use of additive manufacturing in life extension processes. This paper presents a modeling and optimization methodology for examining the impact of design decisions in the early development stage on component lifecycle cost during the in-service phase while considering the potential use of additive manufacturing in life extension strategies. Specifically, a system dynamics model is developed to assess different end-of-life scenarios. Finally, an optimization problem is formulated and solved to minimize lifecycle cost with respect to design variables related to re-manufacturing.

Keywords: Computational design methods, Additive Manufacturing, Product-Service Systems (PSS)


Please sign in to your account

This site uses cookies and other tracking technologies to assist with navigation and your ability to provide feedback, analyse your use of our products and services, assist with our promotional and marketing efforts, and provide content from third parties. Privacy Policy.