Considering Engineering Activities and Product Characteristics to Achieve Material Circularity by Design

Abstract

To select design guidelines engineers have to identify relevant from a bewildering amount of design guidelines. In this paper, a rule-based method for selecting design guidelines for material circularity selection is presented. For this purpose, a generic Product Life Cycle model is detailed with regard to Multi Material cycles (gPLC-MM). The presented method is divided into four steps. Core of the presented method is the comparison of circular product strategies with product life phases and material recovery processes. Engineering activities and increments of the product architecture are used to identify design guidelines. The results show that through the material circularity-oriented design guideline identification method, the product architecture is designed for different processes and technologies, to recover materials. The method allows engineers to select guidelines in a more targeted and consolidated way in sustainability-friendly product engineering.

Automatic knowledge graph creation from engineering standards using the example of formulas

“…Information extraction aims at capturing and extracting useful information from unstructured or semistructured data, such as text, images, audio, or video, whereas extraction techniques are divided into rule-based and learning-based approaches (Adnan and Akbar, 2019). Examples for extracting information from design relevant sources range from patents (Siddharth et al, 2022) and engineering standards -including requirements (Luttmer et al, 2023) as well as context and user specific information (Ehring et al, 2023;Layer et al, 2023) -to circular design guidelines (Gräßler and Hesse, 2023). While different research papers on extraction of valuable information from engineering standards exist, the automatic aggregation to KGs has not been investigated in detail.…”