Rouven Christen

Senior Research Engineer

+41 58 257 34 35rouven.christen@ost.ch

Curriculum Vitae

 
ab 2018Senior Research Engineer im Institut EMS 
2013-2018  Wissenschaftlicher Mitarbeiter im Institut EMS
2002-2013Wissenschaftlicher Mitarbeiter Empa
2009-2012M.Eng in Mechatronik (berufsbegleitend)
1998-2001Dipl. Ing. FH in Systemtechnik NTB

    Competence profile

    • Modelbildung mechatronischer Systeme
    • Li-Ionen Batterien
    • Mess- und Regelungstechnik
    • LabView
    • Matlab / Simulink

    Teaching activity

    • Lehrauftrag für Systemtechnik Bsc
    • Elektromobilität Bsc

    Projects

    • SCCER Mobility
      • Aufbau von Versuchsanlagen zur Vermessung von Li-Ionen Batteriezellen
      • Erstellen von thermisch-elektrischen Zell-Modellen aus experimentellen Daten
    • Optimierung von elektromagnetischen Aktuatoren, ThyssenKrupp Presta AG
    • Indoor Localization, Hilti AG
    • Messroboter, Xtralis AG
    • Modellbasierte Regelung einer hochpräzisen rotatorischen Achse

    Journal Publikationen

    • R Christen, B Martin, G Rizzo. “New Experimental Approach for the Determination of the Heat Generation in a Li-Ion Battery Cell”. Energies. 2021; 14(21):6972. doi: 10.3390/en14216972
    • G Rizzo, R Christen, M Stöck. “Calibration methodology for contact heat flux sensors with enhanced accuracy”. Measurement Science and Technology. 2021; 32(4):045003. doi: 10.1088/1361-6501/abcf62
    • R Christen, G Rizzo, A Gadola and M Stöck. “Test Method for Thermal Characterization of Li-Ion Cells and Verification of Cooling Concepts”. Batteries. 2017; 3(1):3. doi: 10.3390/batteries3010003
    • J Michels, J Sena Cruz, R Christen, C Czaderski and M Motavalli. “Mechanical performance of cold-curing epoxy adhesives after different mixing and curing procedures”. Composites Part B: Engineering. 2016; 98:434–443. doi: 10.1016/j.compositesb.2016.05.054
    • R Gines, A Bergamini, R Christen, M Motavalli and P Ermanni. “Frictional behaviour of polymer films under mechanical and electrostatic loads”. Smart Materials and Structures. 2013; 22(7):075023. doi: 10.1088/0964-1726/22/7/075023
    • J Michels, R Christen and D Waldmann. “Experimental and numerical investigation on postcracking behavior of steel fiber reinforced concrete”. Engineering Fracture Mechanics. 2013; 98:326–349. doi: 10.1016/j.engfracmech.2012.11.004
    • R Maldonado-Lopez and R Christen. “Position-controlled data acquisition embedded system for magnetic NDE of bridge stay cables.” Sensors. 2011; 11(1):162–179.  doi: 10.3390/s110100162
    • R Christen, A Bergamini and M Motavalli. “High precision measurement of surface cracks using an optical system”. Measurement Science and Technology. 2009; 20(7):077001. doi: 10.1088/0957-0233/20/7/077001
    • R Christen, A Bergamini and M Motavalli. “Influence of steel wrapping on magneto-inductive testing of the main cables of suspension bridges”. NDT&E International. 2009; 42(1):22–27. doi: 10.1016/j.ndteint.2008.08.003
    • A Bergamini, R Christen and M Motavalli. “Electrostatically tunable bending stiffness in a GFRP–CFRP composite beam”. Smart Materials and Structures. 2007; 16(3):575–582. doi: 10.1088/0964-1726/16/3/004
    • A Bergamini, R Christen, B Maag and M Motavalli. “A sandwich beam with electrostatically tunable bending stiffness”. Smart Materials and Structures. 2006; 15(3):678–686. doi: 10.1088/0964-1726/15/3/002
    • R Christen and A Bergamini. “Automatic flaw detection in NDE signals using a panel of neural networks”. NDT&E International. 2006; 39(7):547–553. doi: 10.1016/j.ndteint.2006.03.007
    • R Christen, A Bergamini and K Ghazi Wakili. “Full-scale, low-temperature mechanical testing of prestressing systems”. Experimental Mechanics. 2005; 45(1):96–100
    • K Moser, A Bergamini, R Christen and C Czaderski. “Feasibility of concrete prestressed by shape memory alloy short fibers”. Materials and Structures. 2005; 38(279):593–600. doi: 10.1617/14327
    • R Christen, A Bergamini and M Motavalli. “Three-Dimensional Localization of Defects in Stay Cables Using Magnetic Flux Leakage Methods”. Journal of Nondestructive Evaluation. 2003; 22(3): 93–101.

    Konferenzbeiträge

    • A Bergamini, R Christen, M Motavalli und P Ermanni. “Distributed Damping of Large Structures”. In: International Conference on Adaptive Structures and Technologies. Ascona, Switzerland, 2008.
    • A Bergamini, R Christen und M Motavalli. “A simple model for the prediction of the discrete stiffness states of a homogeneous electrostatically tunable mulit-layer beam”. In: Active and Passive Smart Structures and Integrated Systems. Bd. 6525. San Diego, CA, 2007, S. 332 –341. doi: 10.1117/12.714951.
    • R. Christen, A. Novakovic, A. Bergamini und M. Motavalli. “Filtering of NDT signals obtained from wrapped steel cables”. In: Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security. Bd. 6531. SPIE. San Diego, CA, 2007, S. 274 –285. doi: 10.1117/12.715119.
    • A Bergamini, R Christen und M Motavalli. “Electrostatic tuning of the bending stiffness of a large scale GFRP-CFRP beam”. In: Smart Structures and Materials: Damping and Isolation. Bd. 6169. San Diego, CA, 2006, S. 323 –330. doi: 10.1117/12.659207.
    • A Bergamini, R Christen und M Motavalli. “Elecrostatic tuning of the bending stiffness of simple, slender multi-layer composite structures”. In: Smart Structures and Materials: Damping and Isolation. Bd. 5760. San Diego, CA, 2005, S. 152–163. doi: 10.1117/12.598748.
    • A Bergamini und R Christen. “A Simple Approach to the Localization of Flaws in Large Diameter Steel Cables”. In: Smart Nondestructive Evaluation and Health Monitoring of Structural and Biological Systems II. Bd. 5047. San Diego, CA, 2003, S. 243–251. doi: 10.1117/12.484145.
    • A Bergamini, R Christen und M Motavalli. “A simple approach to the automatic recognition of flaws in large diameter steel cables”. In: Int. symposium on non-destructive testing in civil engineering (NDT-CE). Berlin, Germany, 2003.
    • A Bergamini, R Christen und M Motavalli. “Damage Detection in Cables”. In: SAMCO Summer Academy. Robinson College, Cambridge University U.K., 2003.

    Übrige

    • R Christen. “Power für die Batterie”. NTB Technologie-Tag, Buchs, Switzerland, 2020.
    • R Christen. “E-Dumper – grösster Elektrolaster der Welt”. NTB Technologie-Tag, Buchs, Switzerland, 2018.
    • R Christen. “Robotergestutzte Qualitätskontrolle von Hochsicherheits-Einbruchsensoren”. NTB Technologie-Tag, Buchs, Switzerland, 2014.
    • R Christen. “Erreichbare Genauigkeit bei der Folgeregelung einer rotatorischen Achse”. NTB Technologie-Tag, Buchs, Switzerland, 2013.
    • R Christen. “Zerstörungsfreie Seilprufung - Forschung und Entwicklung im Bauwesen”. Essener Fachgespräch Prüfung von Brückenseilen, 2012.
    • A Bergamini und R Christen. “Prüfung von Litzenbündeln - Erfahrungen an der Empa”. DMT Tagung Parallellitzenbündel im Brückenbau, Essen, 2008.
    • M Baumgartner und R Christen. “Modellbasierte Folgeregelung einer hochpräzisen rotativen Achse”. Master Thesis. University of Applied Science Buchs, 2012, S. 1–76.
    • A Bergamini und R Christen. “Non-destructive inspection of steel cables with large diameters for cable-stayed bridges”. ASTRA Report No 574, Mai 2004.
    • A Bergamini, R Christen, C Czaderski und K Moser. “Innerlich vorgespannter zementgebundener Baustoff und Verfahren zu seiner Herstellung”. Swiss Patent 01935/04. 2004.