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Wrinkle and boundary detection of fiber products in robotic composites manufacturing

Gupta, Kashish and Körber, Marian Karl and Djavadifar, Abtin and Krebs, Florian and Najjaran, Homayoun (2019) Wrinkle and boundary detection of fiber products in robotic composites manufacturing. Assembly Automation. Emerald Group Publishing Ltd.. doi: 10.1108/AA-05-2019-0094. ISSN 0144-5154.

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The paper focuses on a vision-based approach to advance the automated process of manufacturing Airbus A350’s pressure bulkhead. The proposed method utilizes information of RGB and infrared images as well as depth measurements to identify the wrinkles and boundary edge of semi-finished dry fiber products on the double-curved surface of a flexible modular gripper used for laying the fabric. The work is a sequential advancement over two of the previous projects namely AZIMUT [1] and a collaboration between the University of British Columbia (UBC), Canada and German Aerospace Center (DLR), Germany [2] towards increased automation of composite aircraft manufacturing. The proposed technique implements a simple and practical image processing solution utilizing a sequence of pixel-wise binary masks on an industrial scale setup; it bridges the gap between laboratory experiments and real-world execution. The setup enables automated deformation and draping of a fiber textile on a form-variable endeffector. During the draping process, tensions developed in the fibers of the textile cause wrinkles on the surface, which are highly detrimental to the production process, material quality and strength. The proposed method automates the identification and detection of the wrinkles and the textile on the gripper surface. The efficacy of the technique is demonstrated via experiments in the proposed work.

Item URL in elib:https://elib.dlr.de/131181/
Document Type:Article
Title:Wrinkle and boundary detection of fiber products in robotic composites manufacturing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Gupta, KashishUNSPECIFIEDhttps://orcid.org/0000-0001-8198-0343UNSPECIFIED
Körber, Marian KarlUNSPECIFIEDhttps://orcid.org/0000-0003-0109-8102UNSPECIFIED
Krebs, FlorianUNSPECIFIEDhttps://orcid.org/0000-0001-6033-801XUNSPECIFIED
Date:28 September 2019
Journal or Publication Title:Assembly Automation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Emerald Group Publishing Ltd.
Keywords:Computer vision, Composite manufacturing, Wrinkle detection, Draping quality
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 - Simulation and Validation (old), L - Structures and Materials (old)
Location: Augsburg
Institutes and Institutions:Institute of Structures and Design
Institute of Structures and Design > Automation and Production Technology
Deposited By: Körber, Marian Karl
Deposited On:28 Nov 2019 10:58
Last Modified:22 Jan 2021 21:11

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