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Concept for a tailor-made visual inline inspection system for fibre layup processes depending on material and process characteristics

Meister, Sebastian (2018) Concept for a tailor-made visual inline inspection system for fibre layup processes depending on material and process characteristics. Lightweight Design in Product Development (LWD-PD), 13.-15. Juni 2018, Zürich, Schweiz.

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Fibre layup processes like Automated Fibre Placement (AFP) are state of the art technologies for the production of large scale lightweight components like wing covers or fuselages. These composite components are produced layer by layer using narrow material strips. During this material layup it is possible to generate defects e.g. wrinkles, twists, gaps, overlaps, etc. with probably a huge influence on the mechanical properties of the produced component. Recognizing these defects, inline quality assurance (QA) systems are part of ongoing research and industrial development. These systems are mostly inflexible in the use of different sensors and algorithms. One single system is used for every production case. For different materials and various processes, this system performs differently and possibly non-deterministic. In order to compensate this issue it is necessary to understand the relation between optical material properties and the used sensors and algorithms. The approach considered in this paper is based on analysing optical characteristics of fibre materials and link them to the characteristics and properties of various feasible sensors and algorithms. This proposal has the potential to increase the performance of an inline QA system significantly. Using this optical properties data it will be possible to build a tailor made inline inspection system. This system is specifically designed by knowledge and had a well-known error range. During this work, the following scientific questions have to be answered: - Which dependencies in optical characteristics had to be analysed to configure a tailor-made inline QA system for a specific material? - How do we describe layup defects by its optical characteristics? - How robust performs an inline QA system for different materials? Firstly, it is planned to implement the general system concept, including multiple sensors and algorithms. Following the optical material characterisation and the linking to the corresponding sensor-algorithm behaviour will be considered.

Item URL in elib:https://elib.dlr.de/120135/
Document Type:Conference or Workshop Item (Speech, Poster)
Title:Concept for a tailor-made visual inline inspection system for fibre layup processes depending on material and process characteristics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Meister, Sebastiansebastian.meister (at) dlr.dehttps://orcid.org/0000-0002-8193-1143
Date:June 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Optical Properties, Neuronal Networks, Inline Quality Assurance, Automated Fiber Placement, GroFi
Event Title:Lightweight Design in Product Development (LWD-PD)
Event Location:Zürich, Schweiz
Event Type:international Conference
Event Dates:13.-15. Juni 2018
Organizer:ETH Zürich, Institute of Design, Materials and Fabrication
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Stade
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Composite Process Technology
Deposited By: Meister, Sebastian
Deposited On:25 Jun 2018 06:32
Last Modified:31 Jul 2019 20:17

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