TY - JOUR A1 - Kaminsky, Randolph A1 - Weber, Hans-Joachim A1 - Simons, Antoine A1 - Kallweit, Stephan A1 - Kramm, K. A1 - Verdonck, Pascale T1 - Comparison of the flow downstream two prototypes of a new monoleaflet artificial aortic heart valve by means of PIV visualization JF - Computer methods in biomechanics and biomedical engineering. 8 (2005), H. 4, Suppl. 1 Y1 - 2005 SN - 1476-8259 SP - 159 EP - 160 ER - TY - JOUR A1 - Franko, Josef A1 - Du, Shengzhi A1 - Kallweit, Stephan A1 - Duelberg, Enno Sebastian A1 - Engemann, Heiko T1 - Design of a Multi-Robot System for Wind Turbine Maintenance JF - Energies N2 - 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. Y1 - 2020 U6 - http://dx.doi.org/10.3390/en13102552 SN - 1996-1073 VL - 13 IS - 10 SP - Article 2552 PB - MDPI CY - Basel ER - TY - CHAP A1 - Hartmann, Axel A1 - Kallweit, Stephan A1 - Feldusen, Antje A1 - Schröder, Wolfgang T1 - Detection of upstream propagating sound waves at buffet flow using high-speed PIV BT - 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics ; 9th to 12th July 2012 Lisbon, Portugal Y1 - 2012 N1 - Aerodynamisches Institut ; International Symposium on Applications of Laser Techniques to Fluid Mechanics <16, 2012, Lissabon> ER - TY - CHAP A1 - Schleupen, Josef A1 - Engemann, Heiko A1 - Bagheri, Mohsen A1 - Kallweit, Stephan A1 - Dahmann, Peter T1 - Developing a climbing maintenance robot for tower and rotor blade service of wind turbines T2 - Advances in Robot Design and Intelligent Control : Proceedings of the 25th Conference on Robotics in Alpe-Adria-Danube Region (RAAD16) Y1 - 2017 SN - 978-3-319-49058-8 U6 - http://dx.doi.org/10.1007/978-3-319-49058-8_34 N1 - Advances in Robot Design and Intelligent Control ; Vol. 540 SP - 310 EP - 319 PB - Springer CY - Cham ER - TY - JOUR A1 - Kallweit, Stephan A1 - Dues, Michael A1 - Müller, Ulli A1 - Lederer, Thomas T1 - Einsatz der Particle Image Velocimetry zur Untersuchung von Rohrströmungen / Kallweit, Stephan ; Dues, Michael ; Müller, Ulli ; Lederer, Thomas ; Schroll, Michael ; Willert, Christian JF - Lasermethoden in der Strömungsmesstechnik: 15. Fachtagung 2007 Rostock / Hrsg.: Alfred Leder .... Y1 - 2007 SN - 978-3-86009-007-7 N1 - Deutsche Gesellschaft für Laser-Anemometrie ; Fachtagung Lasermethoden in der Strömungsmesstechnik <15, 2007, Rostock> SP - 35 ER - TY - CHAP A1 - Kallweit, Stephan A1 - Schleupen, Josef A1 - Dahmann, Peter A1 - Bagheri, Mohsen A1 - Engemann, Heiko T1 - Entwicklung eines Kletterroboters zur Diagnose und Instandsetzung von Windenergieanlagen (SMART) T2 - Automatisierung im Fokus von Industrie 4.0 : Tagungsband AALE 2016 ; 13. Fachkonferenz, Lübeck Y1 - 2016 SN - 978-3-8356-7312-0 N1 - AALE-Konferenz <13., 2016, Lübeck> SP - 207 EP - 212 PB - DIV Deutscher Industrieverlag GmbH CY - München ER - TY - JOUR A1 - Kallweit, Stephan A1 - Uchiyama, R. A1 - Siekmann, H. T1 - Fault Diagnostic Method for Pump Running Conditions Based on Process Modeling and Neural Network / Uchiyama, R. ; Kallweit, S. ; Siekmann, H. JF - International Journal of Rotating Machinery. 4 (1998), H. 1 Y1 - 1998 SN - 1542-3034 SP - 49 EP - 59 ER - TY - JOUR A1 - Dues, M. A1 - Gebhardt, Andreas A1 - Kallweit, Stephan A1 - Scheffler, T. A1 - Siekmann, H. A1 - Uchiyama, T. T1 - Flow Visualization in a Cavitating Flow JF - Proceedings of the German-Japanese Symposium on Multi-Phase Flow : Karlsruhe, Germany, August 23 - 25, 1994 / comp. by U. Müller ... Y1 - 1994 N1 - German Japanese Symposium on Multi-Phase Flow <1994, Karlsruhe> ; Kernforschungszentrum Karlsruhe ; 5389 SP - 391 EP - 402 PB - Kernforschungszentrum Karlsruhe CY - Karlsruhe ER - TY - JOUR A1 - Kaminsky, Radoslav A1 - Kallweit, Stephan A1 - Weber, Hans-Joachim A1 - Claessens, Tom A1 - Jozwik, Krzystof A1 - Verdonck, Pascal T1 - Flow visualization through two types of aortic prosthetic heart valves using stereoscopic high-speed particle image velocimetry JF - Artificial organs. 31 (2007), H. 12 Y1 - 2007 SN - 1525-1594 SP - 869 EP - 879 ER - TY - JOUR A1 - Kallweit, Stephan A1 - Kaminsky, R. A1 - Canneyt, C. van A1 - Eloot, S. T1 - High-Speed und Stereo-PIV in einem künstlichen Blutgefäß / Kallweit, S. ; Kaminsky, R. ; Canneyt, C. van ; Eloot, S. JF - Lasermethoden in der Strömungsmesstechnik: 15. Fachtagung 2007 Rostock / Hrsg.: Alfred Leder .... Y1 - 2007 SN - 978-3-86009-007-7 N1 - Deutsche Gesellschaft für Laser-Anemometrie ; Fachtagung Lasermethoden in der Strömungsmesstechnik <15, 2007, Rostock> SP - 48 ER -