Lifecycle Option Selection in Early Design Stages Based on Degradation Model Evaluation

DS 116: Proceedings of the DESIGN2022 17th International Design Conference

Year: 2022
Editor: Mario Štorga, Stanko Škec, Tomislav Martinec, Dorian Marjanović
Author: David Inkermann
Series: DESIGN
Institution: Technische Universit
Section: Design Support Tools and Methods
Page(s): 475-484
DOI number: https://doi.org/10.1017/pds.2022.49
ISSN: 2732-527X (Online)

Abstract

Components of modern systems are characterised by differing lifetimes. The resulting lifetime heterogeneity (LTH) is a core criteria to determine life cycle options (LCO) for more sustainable products, e.g. by upgrading or reuse. Estimating the lifetimes is challenged by a lack of suitable degradation models (DM) describing the detrimental change performance of components during the use phase. This paper expands the state of the art in LCO selection by a method to evaluate fitness and sensitivity of DM based on the similarity of use cases, environments and operation profiles of the system.

Keywords: life cycle, sustainability, product architecture, design for x (DfX), model-based systems engineering (MBSE)