@article{AbbasBalcBremenetal.2022, author = {Abbas, Karim and Balc, Nicolae and Bremen, Sebastian and Skupin, Marco}, title = {Crystallization and aging behavior of polyetheretherketone PEEK within rapid tooling and rubber molding}, series = {Journal of Manufacturing and Materials Processing}, volume = {6}, journal = {Journal of Manufacturing and Materials Processing}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2504-4494}, doi = {10.3390/jmmp6050093}, pages = {1 -- 12}, year = {2022}, abstract = {In times of short product life cycles, additive manufacturing and rapid tooling are important methods to make tool development and manufacturing more efficient. High-performance polymers are the key to mold production for prototypes and small series. However, the high temperatures during vulcanization injection molding cause thermal aging and can impair service life. The extent to which the thermal stress over the entire process chain stresses the material and whether it leads to irreversible material aging is evaluated. To this end, a mold made of PEEK is fabricated using fused filament fabrication and examined for its potential application. The mold is heated to 200 ◦C, filled with rubber, and cured. A differential scanning calorimetry analysis of each process step illustrates the crystallization behavior and first indicates the material resistance. It shows distinct cold crystallization regions at a build chamber temperature of 90 ◦C. At an ambient temperature above Tg, crystallization of 30\% is achieved, and cold crystallization no longer occurs. Additional tensile tests show a decrease in tensile strength after ten days of thermal aging. The steady decrease in recrystallization temperature indicates degradation of the additives. However, the tensile tests reveal steady embrittlement of the material due to increasing crosslinking.}, language = {en} } @techreport{Wollert2008, author = {Wollert, J{\"o}rg}, title = {DANA - Dynamische Ad-hoc Netzwerke in der Automatisierungstechnik. Schlussbericht. Laufzeit: 01.09.2004 - 30.06.2008 (BMBF-Forschungsbericht; F{\"o}rderkennzeichen 1714X04)}, publisher = {BMBF}, address = {Berlin}, pages = {145 S.}, year = {2008}, language = {de} } @book{Wollert2002, author = {Wollert, J{\"o}rg}, title = {Das Bluetooth Handbuch: Technologie, Software, Einsatzfelder, Systementwicklung, Wettbewerb}, publisher = {Franzis}, address = {M{\"u}nchen}, isbn = {3-7723-5323-1}, pages = {333 S.}, year = {2002}, language = {de} } @book{Knepper1992, author = {Knepper, Ludger}, title = {Das Rolltor : Bauwerk{\"o}ffnungs-Abschl{\"u}sse ; Aufbau, Konstruktion, Hinweise zur Berechnung / von Horst G{\"u}nter Steuff ; unter Mitarb. von Ludger Knepper ; Frieder Thiele}, publisher = {Werner}, address = {D{\"u}sseldorf}, isbn = {3-8041-3165-4}, pages = {XI, 227 S. : zahlr. graph. Darst.}, year = {1992}, language = {de} } @article{Starke1999, author = {Starke, G{\"u}nther}, title = {Das Verbundvorhaben 'PROJOIN'. Motivation und Ziele.}, series = {Qualit{\"a}tsorientierte Schweißtechnik als Wettbewerbsfaktor : neue Wege f{\"u}r die Fertigung von morgen ; Ergebnisse einer vom BMBF gef{\"o}rderten europ{\"a}ischen Forschungskooperation im Rahmen von EUREKA-FAKTORY] / P. Drews ; G. K{\"o}hler (Hrsg.)}, journal = {Qualit{\"a}tsorientierte Schweißtechnik als Wettbewerbsfaktor : neue Wege f{\"u}r die Fertigung von morgen ; Ergebnisse einer vom BMBF gef{\"o}rderten europ{\"a}ischen Forschungskooperation im Rahmen von EUREKA-FAKTORY] / P. Drews ; G. K{\"o}hler (Hrsg.)}, publisher = {DVS-Verl}, address = {D{\"u}sseldorf}, isbn = {3-87155-663-7}, pages = {7 -- 14}, year = {1999}, language = {de} } @inproceedings{StieglitzWollert2010, author = {Stieglitz, Kristian and Wollert, J{\"o}rg}, title = {Database driven modernization and expansion of storage systems}, series = {Proceedings : the 3rd International Multi-Conference on Engineering and Technological Innovation : June 29th - July 2nd, 2010, Orlando, Florida, USA ; vol. 2}, booktitle = {Proceedings : the 3rd International Multi-Conference on Engineering and Technological Innovation : June 29th - July 2nd, 2010, Orlando, Florida, USA ; vol. 2}, publisher = {IIIS}, address = {Winter Garden, Fla.}, organization = {International Multi-Conference on Engineering and Technological Innovation <3, 2010, Orlando, Fla.>}, isbn = {978-1-936338-03-0}, pages = {180 -- 183}, year = {2010}, language = {de} } @article{PfaffSchmidt2016, author = {Pfaff, Raphael and Schmidt, Bernd}, title = {Daten in der Cloud - und dann?}, series = {Deine Bahn}, journal = {Deine Bahn}, number = {6}, publisher = {Bahn-Fachverlag}, address = {Berlin}, issn = {0948-7263}, pages = {50 -- 55}, year = {2016}, abstract = {Schienenverkehrssysteme stehen in zunehmendem Wettbewerb, sowohl untereinander als auch mit anderen Verkehrstr{\"a}gern. Als wichtiger Aspekt zur Steigerung der Kosteneffizienz wird die Digitalisierung des Betriebs und der Fahrzeuge betrachtet. {\"U}ber eine Prognose der Ausfallwahrscheinlichkeit bzw. Restlebensdauer von Subsystemen k{\"o}nnen mittels Digitalisierung die Instandhaltungskosten gesenkt werden. Die geringen Fehlerraten im System Bahn machen die Nutzung besonderer Simulationstechniken notwendig. In diesem Beitrag wird gezeigt, wie sich die Subsystemverf{\"u}gbarkeit aus den beobachteten Fehlerraten der Teilfunktionen vorhersagen l{\"a}sst.}, language = {de} } @article{GrundmannKramerKonrath2001, author = {Grundmann, Reinhard and Kramer, C. and Konrath, B.}, title = {Der Aeroakustik-Fahrzeugwindkanal von Ford.}, series = {Automobiltechnische Zeitschrift - ATZ. 103 (2001), H. 10}, journal = {Automobiltechnische Zeitschrift - ATZ. 103 (2001), H. 10}, isbn = {0001-2785}, pages = {932 -- 938}, year = {2001}, language = {de} } @article{GrundmannBommesKlaesetal.1995, author = {Grundmann, Reinhard and Bommes, Leonhard and Klaes, Klaus and Kramer, Carl u.a.}, title = {Der Einfluß der Schaufelgestalt von Zentrifugall{\"u}ftern auf deren Leistung und Ger{\"a}uschpegel}, series = {Noise Control Engineering Journal. 43 (1995), H. 4}, journal = {Noise Control Engineering Journal. 43 (1995), H. 4}, isbn = {0736-2501}, pages = {91 -- 101}, year = {1995}, language = {de} } @article{Wollert2014, author = {Wollert, J{\"o}rg}, title = {Der Embedded Wireless-Report}, series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler ; Sonderh. Wireless : Fachmedium f{\"u}r Entwicklungen funkbasierter Systeme}, journal = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler ; Sonderh. Wireless : Fachmedium f{\"u}r Entwicklungen funkbasierter Systeme}, publisher = {WEKA-Fachmedien}, address = {Haar}, issn = {0013-5658}, pages = {18 -- 25}, year = {2014}, language = {de} } @article{Knepper1985, author = {Knepper, Ludger}, title = {Der moderne Luftfrachtverkehr - leistungsfaehig durch seine bodengebundenen Umschlagssysteme}, pages = {60 -- 69}, year = {1985}, language = {de} } @incollection{Reichert2014, author = {Reichert, Walter}, title = {Der Vertriebsingenieur: Ausbildung und Beruf}, series = {Berufsstart Technik : das Karriereportal f{\"u}r junge Akademiker ; Ingenieure, Naturwissenschaftler, Informatiker}, booktitle = {Berufsstart Technik : das Karriereportal f{\"u}r junge Akademiker ; Ingenieure, Naturwissenschaftler, Informatiker}, publisher = {Resch}, address = {Großenkneten}, pages = {456 -- 458}, year = {2014}, language = {de} } @article{Grundmann1992, author = {Grundmann, Reinhard}, title = {Design Criteria for Aeroacoustic Wind Tunnels}, year = {1992}, language = {en} } @article{FrankoDuKallweitetal.2020, author = {Franko, Josef and Du, Shengzhi and Kallweit, Stephan and Duelberg, Enno Sebastian and Engemann, Heiko}, title = {Design of a Multi-Robot System for Wind Turbine Maintenance}, series = {Energies}, volume = {13}, journal = {Energies}, number = {10}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {10.3390/en13102552}, pages = {Article 2552}, year = {2020}, abstract = {The maintenance of wind turbines is of growing importance considering the transition to renewable energy. This paper presents a multi-robot-approach for automated wind turbine maintenance including a novel climbing robot. Currently, wind turbine maintenance remains a manual task, which is monotonous, dangerous, and also physically demanding due to the large scale of wind turbines. Technical climbers are required to work at significant heights, even in bad weather conditions. Furthermore, a skilled labor force with sufficient knowledge in repairing fiber composite material is rare. Autonomous mobile systems enable the digitization of the maintenance process. They can be designed for weather-independent operations. This work contributes to the development and experimental validation of a maintenance system consisting of multiple robotic platforms for a variety of tasks, such as wind turbine tower and rotor blade service. In this work, multicopters with vision and LiDAR sensors for global inspection are used to guide slower climbing robots. Light-weight magnetic climbers with surface contact were used to analyze structure parts with non-destructive inspection methods and to locally repair smaller defects. Localization was enabled by adapting odometry for conical-shaped surfaces considering additional navigation sensors. Magnets were suitable for steel towers to clamp onto the surface. A friction-based climbing ring robot (SMART— Scanning, Monitoring, Analyzing, Repair and Transportation) completed the set-up for higher payload. The maintenance period could be extended by using weather-proofed maintenance robots. The multi-robot-system was running the Robot Operating System (ROS). Additionally, first steps towards machine learning would enable maintenance staff to use pattern classification for fault diagnosis in order to operate safely from the ground in the future.}, language = {en} } @book{Pfeiffer1997, author = {Pfeiffer, Johann}, title = {Design und Herstellen von Werkzeugen mit Freiformfl{\"a}chen}, publisher = {Fachhochsch.}, address = {Aachen}, year = {1997}, language = {de} } @inproceedings{HartmannKallweitFeldusenetal.2012, author = {Hartmann, Axel and Kallweit, Stephan and Feldusen, Antje and Schr{\"o}der, Wolfgang}, title = {Detection of upstream propagating sound waves at buffet flow using high-speed PIV}, pages = {14 S. : graph. Darst.}, year = {2012}, language = {en} } @inproceedings{SchleupenEngemannBagherietal.2017, author = {Schleupen, Josef and Engemann, Heiko and Bagheri, Mohsen and Kallweit, Stephan and Dahmann, Peter}, title = {Developing a climbing maintenance robot for tower and rotor blade service of wind turbines}, series = {Advances in Robot Design and Intelligent Control : Proceedings of the 25th Conference on Robotics in Alpe-Adria-Danube Region (RAAD16)}, booktitle = {Advances in Robot Design and Intelligent Control : Proceedings of the 25th Conference on Robotics in Alpe-Adria-Danube Region (RAAD16)}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-49058-8}, doi = {10.1007/978-3-319-49058-8_34}, pages = {310 -- 319}, year = {2017}, language = {en} } @inproceedings{VedralKruseWollert2007, author = {Vedral, Andreas and Kruse, Thomas and Wollert, J{\"o}rg}, title = {Development and performance evaluation of an antenna diversity module for industrial communication based on IEEE 802.15.4}, series = {12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece}, booktitle = {12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece}, publisher = {IEEE}, address = {Piscataway, NJ}, organization = {International Conference on Emerging Technologies and Factory Automation <12, 2007, Patras, Greece>}, isbn = {1424408261 ; 9781424408269}, doi = {10.1109/EFTA.2007.4416769}, pages = {177 -- 186}, year = {2007}, language = {en} } @article{EnningJenayehMuelleretal.1997, author = {Enning, Manfred and Jenayeh, I. and M{\"u}ller, C. and Rake, Heinrich}, title = {Development and realization of a manipulator for automatic decoupling of freight cars in marshalling yards / Jenayeh, I. ; M{\"u}ller, C. ; Enning, Manfred ; Rake, Heinrich ; Peter, J.}, year = {1997}, language = {en} } @article{StarkeDrews1985, author = {Starke, G{\"u}nther and Drews, P.}, title = {Development approaches for advanced control in automated arc welding}, pages = {115 -- 124}, year = {1985}, language = {en} }