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302 Publications


2005 | Journal Article | LibreCat-ID: 9526 LibreCat | DOI
 

2005 | Conference Paper | LibreCat-ID: 9527
Modellgestützte Analyse piezoelektrischer Transformatoren
T. Hemsel, in: Mechatronik 2005 Innovative Produktentwicklung, Düsseldorf, 2005, pp. 1013–1032.
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2005 | Conference Paper | LibreCat-ID: 9528
Linear ultrasonic motors based on coupling of longitudinal vibrations
T. Hemsel, M. Mracek, J. Twiefel, P. Vasiljev, J. Wallaschek, in: Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA), Yokohama, Japan, 2005, pp. 32–36.
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2005 | Journal Article | LibreCat-ID: 9529
Unkontrollierbare Bewegungen ebener Mechanismen mit Gelenkspiel
A. Hofmeister, W. Sextro, O. Röschel, PAMM 5 (2005) 201–202.
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2005 | Conference Paper | LibreCat-ID: 9530
Parallel Operation of Ultrasonic Linear Motors
M. Mracek, T. Hemsel, J. Wallaschek, in: Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA), Yokohama, Japan, 2005, pp. 23–24.
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2005 | Conference Paper | LibreCat-ID: 9531
Teaching Mechatronics to a Mixed Audience from Industry and University
J. Twiefel, T. Hemsel, C. Kauczor, J. Wallaschek, in: 6th International Workshop on Research and Education in Mechatronics, 2005, pp. 356–361.
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2004 | Conference Paper | LibreCat-ID: 8951
Model-based Diagnosis for Sandwiched Ultrasonic Transducers
B. Fu, T. Hemsel, J. Wallaschek, in: Proceedings of the 18th International Congress on Acoustics, ICA, 2004, pp. 4–9.
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2004 | Conference Paper | LibreCat-ID: 8952
Systematic mistuning of bladed disk assemblies with friction contacts
F. Götting, W. Sextro, L. Panning, K. Popp, in: Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, 2004, pp. 257–267.
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2004 | Conference Paper | LibreCat-ID: 8953
Linear piezoelectric motors and their application
T. Hemsel, in: Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA), Seoul, Korea, 2004.
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2004 | Conference Paper | LibreCat-ID: 9519
A novel approach for high power ultrasonic linear motors
T. Hemsel, M. Mracek, J. Wallaschek, P. Vasiljev, in: Ultrasonics Symposium, 2004 IEEE, 2004, pp. 1161–1164.
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2004 | Journal Article | LibreCat-ID: 9520
Hysteretic Friction of a Sliding Rubber Element
M. Lindner, W. Sextro, K. Popp, PAMM 4 (2004) 101–102.
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2004 | Conference Paper | LibreCat-ID: 9521
Design criteria for piezoelectric transformers
W. Littmann, T. Hemsel, J. Wallaschek, in: Proceedings of the 18th International Congress on Acoustics, 2004, pp. 2889–2892.
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2004 | Conference Paper | LibreCat-ID: 9522
Self configuration of miniature ultrasonic linear motors
M. Mracek, J. Wallaschek, T. Hemsel, in: Proceedings of the 18th International Congress on Acoustics, 2004, pp. 417–420.
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2004 | Conference Paper | LibreCat-ID: 9523
Asymmetrical Underplatform Dampers in Gas Turbine Bladings: Theory and Application
L. Panning, K. Popp, W. Sextro, F. Götting, in: Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, Vienna, Austria, 2004, pp. 269–280.
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2004 | Conference Paper | LibreCat-ID: 9524
Model-based Diagnosis for Sandwiched Ultrasonic Transducers
B. Fu, T. Hemsel, J. Wallaschek, in: Proceedings of the 18th International Congress on Acoustics, ICA, 2004, pp. 4–9.
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2003 | Conference Paper | LibreCat-ID: 8933
Schwingungsverhalten von verstimmten Beschaufelungen mit Reibelementen
F. Götting, W. Sextro, L. Panning, K. Popp, in: H. Irretier , R. Nordmann, H. Springer (Eds.), Schwingungen in Rotierenden Maschinen VI SIRM, Referate Der Tagung in Darmstadt, Vieweg-Verlag, 2003, pp. 201–210.
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2003 | Journal Article | LibreCat-ID: 8934
Erzwungene Schwingungen von elastischen Mehrkörpersystemen mit Reibkontakten
A. Genzo, W. Sextro, K. Popp, PAMM 2 (2003) 120–121.
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2003 | Conference Paper | LibreCat-ID: 8935
Modelling and Analysis of Piezoelectric Transformers
T. Hemsel, J. Wallaschek, in: Proceedings of the 5th International Congress of Intelligent Materials (ICIM), 2003.
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2003 | Conference Paper | LibreCat-ID: 8936
Load-adaptive phase-controller for resonant driven piezoelectric devices
W. Littmann, T. Hemsel, C. Kauczor, J. Wallaschek, W. Sinha, in: Proceedings of World Congress Ultrasonics, 2003, pp. 547–550.
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2003 | Journal Article | LibreCat-ID: 8937
Design of Friction Dampers for Mistuned Bladed Disks
L. Panning, W. Sextro, K. Popp, PAMM 3 (2003) 118–119.
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2003 | Journal Article | LibreCat-ID: 8938
Spatial dynamics of tuned and mistuned bladed disks with cylindrical and wedge-shaped friction dampers
L. Panning, W. Sextro, K. Popp, International Journal of Rotating Machinery 9 (2003) 219–228.
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2003 | Journal Article | LibreCat-ID: 8939
Vibration Damping by Friction Forces -Theory and Applications
K. Popp, L. Panning, W. Sextro, Journal of Vibration and Control 9 (2003) 419–448.
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2003 | Conference Paper | LibreCat-ID: 8940
Optimierung des Schwingungsverhaltens elastischer Strukturen mit Reibfugen am Beispiel von Turbomaschinenschaufeln
W. Sextro, K. Popp, in: Forschungsvereinigung Verbrennungskraftmaschinen (FW), Frankfurt am Main, Germany, 2003, p. 40.
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2003 | Conference Paper | LibreCat-ID: 8941
On forced vibration of shrouded turbine blades
J. Szwedowicz, W. Sextro, R. Visser, P.. Masserey, in: ASME Turbo Expo 2003, Collocated with the 2003 International Joint Power Generation Conference, Atlanta, Georgia, USA, 2003.
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2002 | Conference Paper | LibreCat-ID: 8926
Piezoelectric transformers - state of the art and development trends
T. Hemsel, W. Littmann, J. Wallaschek, in: Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE, 2002, pp. 645–648.
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2002 | Conference Paper | LibreCat-ID: 8927
Piezoelektrische Transformatoren - Bauformen und Modellierung
T. Hemsel, W. Littmann, J. Wallaschek, in: 47. Internationales Wissenschaftliches Kolloquium, 2002.
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2002 | Conference Paper | LibreCat-ID: 8928
Optimization of the Contact Geometry between Turbine Blades and Underplatform Dampers with respect to Friction Damping
L. Panning, W. Sextro, K. Popp, in: Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, Amsterdam, Niederlande, 2002.
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2002 | Conference Paper | LibreCat-ID: 8929
Spatial dynamics of tuned and mistuned bladed disks with cylindrical and wedge-shaped friction dampers
L. Panning, W. Sextro, K. Popp, in: Proceedings of the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC, Honolulu, Hawaii, USA, 2002.
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2002 | Conference Paper | LibreCat-ID: 8931
Fast Calculation of the Statistics of the Forced Response of Mistuned Bladed Disk Assemblies with Friction Contacts
W. Sextro, L. Panning, F. Götting, in: Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air, Amsterdam, Niederlande, 2002.
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2002 | Conference Paper | LibreCat-ID: 8932
Optimierung des Schwingungsverhaltens elastischer Strukturen mit Reibfugen
W. Sextro, K. Popp, in: Forschungsvereinigung Verbrennungskraftmaschinen (FW) - Lnformationstagung Turbinen, Frankfurt am Main, Germany, 2002, pp. 157–183.
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2001 | Dissertation | LibreCat-ID: 8469
Untersuchung und Weiterentwicklung linearer piezoelektrischer Schwingungsantriebe
T. Hemsel, Untersuchung und Weiterentwicklung linearer piezoelektrischer Schwingungsantriebe, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2001.
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2001 | Conference Paper | LibreCat-ID: 8921
Schwingungsanalyse verstimmter Schaufelkränze mit Reibelementen
L. Panning, W. Sextro, K. Popp, in: H. Irretier, R. Nordmann, H. Springer (Eds.), Schwingungen in Rotierenden Maschinen VI SIRM, Referate Der Tagung in Wien, Vieweg-Verlag, 2001, pp. 297–306.
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2001 | Journal Article | LibreCat-ID: 8922
Heat and Wear Generation for Rolling Contacts
W. Sextro, Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM) 81 (2001) 225–226.
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2001 | Conference Paper | LibreCat-ID: 8923
Development and Experimental Validation of a Point Contact Model for Dynamical Problems with Friction
W. Sextro, in: ASME Design Engineering Technical Conferences, Pittsburgh, Pennsylvania, USA, 2001, pp. 1–12.
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2001 | Journal Article | LibreCat-ID: 8924
Localization in Nonlinear Mistuned Systems with Cyclic Symmetry
W. Sextro, K. Popp, T. Krzyzynski, Nonlinear Dynamics 25 (2001) 207–220.
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2001 | Conference Paper | LibreCat-ID: 8925
Piezoelektrische lineare Schwingungsantriebe
J. Wallaschek, T. Hemsel, in: Special Antriebstechnik, 2001, pp. 70–71.
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2000 | Journal Article | LibreCat-ID: 8914
Survey of the present state of the art of piezoelectric linear motors
T. Hemsel, J. Wallaschek, Ultrasonics 38 (2000) 37–40.
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2000 | Conference Paper | LibreCat-ID: 8915
State of the art and development trends of ultrasonic linear motors
T. Hemsel, J. Wallaschek, in: Ultrasonics Symposium, 2000 IEEE, 2000, pp. 663–666 vol.1.
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2000 | Conference Paper | LibreCat-ID: 8916
Piezoelectic linear motors
T. Hemsel, J. Wallaschek, in: Tagungsband Der ACTUATOR, Bremen, 2000, pp. 250–253.
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2000 | Conference Paper | LibreCat-ID: 8917 LibreCat
 

2000 | Journal Article | LibreCat-ID: 8918
On some regularities in dynamic response of cyclic periodic structures
T. Krzyzynski, K. Popp, W. Sextro, Chaos, Solitons \& Fractals 11 (2000) 1597–1609.
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2000 | Conference Paper | LibreCat-ID: 8919
Optimization of Interblade Friction Damper
L. Panning, W. Sextro, K. Popp, in: International Gas Turbine \& Aeroengine Congress \& Exhibition, ASME, Munich, Germany, 2000, pp. 1–8.
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2000 | Conference Paper | LibreCat-ID: 8920
The Calculation of the Forced Response of Shrouded Blades with Friction Contacts and Its Experimental Verification
W. Sextro, in: International Gas Turbine \& Aeroengine Congress \& Exhibition, ASME, Munich, Germany, 2000, pp. 1–8.
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1999 | Conference Paper | LibreCat-ID: 8909
Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz
K. Popp, W. Sextro, in: Forschungsvereinigung Verbrennungskraftmaschinen (FW) -Lnformationstagung Turbinen, Heidelberg, 1999, pp. 21–38.
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1999 | Conference Paper | LibreCat-ID: 8910
Experimental verification of a non-Hertzian contact model
W. Sextro, in: International Conference on Computational Methods in Contact Mechanics, 1999, pp. 181–190.
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1999 | Conference Paper | LibreCat-ID: 8911
Forced Vibration of Elastic Structures with Friction Contacts
W. Sextro, in: ASME Design Engineering Technical Conferences, Las Vegas, Nevada, USA, 1999, pp. 1–10.
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1999 | Journal Article | LibreCat-ID: 8912
Ein ebenes Reibkontaktmodell zur Berechnung von Schaufelschwingungen mit Reibelementen
W. Sextro, K. Popp, Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM) 79 (1999) 311–312.
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1999 | Conference Paper | LibreCat-ID: 8913
Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz
W. Sextro, K. Popp, in: Forschungsvereinigung Verbrennungskraftmaschinen (FW), Frankfurt am Main, Germany, 1999, p. 56.
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1998 | Conference Paper | LibreCat-ID: 8905
Modellierung piezoelektrischer Stapel- und Vielschichtaktoren für dynamischen Betrieb
T. Hemsel, J. Krome, W. Littmann, J. Wallaschek, in: Proceedings 2. Polnisch-Deutscher Workshop “Werkzeuge Der Mechatronik,” Ilmenau, Deutschland, 1998.
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1998 | Conference Paper | LibreCat-ID: 8906
A piezoelectric linear vibration drive for high driving forces
T. Hemsel, J. Wallaschek, in: Proceedings of VIBROENGINEERING, 1998, pp. 7–12.
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1998 | Conference Paper | LibreCat-ID: 8907
Vibrational Behaviour of Tuned and Detuned Bladed Disks with Friction Dampers
W. Sextro, K. Popp, I. Wolter, in: International Congress on Combustion Engines, Proceedings of the 22nd CIMAC, Kopenhagen, D{\"a}nemark, 1998, pp. 257–270.
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1998 | Conference Paper | LibreCat-ID: 8908
Three-Dimensional Vibration of Bladed Disk Assemblies with Friction Dampers
W. Sextro, K. Popp, I. Wolter, in: The 7th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Proceedings of ISROMAC-7, Honolulu, Hawaii, USA, 1998, pp. 621–630.
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1997 | Conference Paper | LibreCat-ID: 8898
Schwingungsprüfstand zur vollautomatischen Messung von Ultraschallschwingungen in piezoelektrischen Antrieben
S. Goldschmidt, T. Hemsel, J. Krome, H. Storck, J. Wallaschek, in: Tagungsband Zum 4. Laser Vibrometer Seminar Der Polytec GmbH, Waldbronn, Deutschland, 1997.
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1997 | Conference Paper | LibreCat-ID: 8900
Ultrasonic motors for linear positioning tasks in automobiles
T. Hemsel, J. Wallaschek, in: Proceedings of the 30th International Symposium on Automotive Technology \& Automation (ISATA), Florenz, Italien, 1997, pp. 631–637.
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1997 | Conference Paper | LibreCat-ID: 8901
Piezoelectric ultrasonic linear motors
T. Hemsel, J. Wallaschek, in: EUROMECH, European Mechanics Colloquium “Synthesis of Mechatronic Sytems,” Duisburg, 1997.
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1997 | Conference Paper | LibreCat-ID: 8902
Schwingungsverhalten von verstimmten Beschaufelungen mit Reibelementen
K. Popp, W. Sextro, in: Forschungsvereinigung Verbrennungskraftmaschinen (FW) -Lnformationstagung Turbinen, Frankfurt am Main, Germany, 1997, pp. 131–142.
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1997 | Conference Paper | LibreCat-ID: 8903
Schwingungsverhalten von Schaufelkränzen mit Reibelementen bei Frequenzverstimmung
W. Sextro, in: VDI-Reihe, VDI-Verlag, Düsseldorf, 1997.
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1997 | Conference Paper | LibreCat-ID: 8904
Improved reliability of bladed disks due to friction dampers
W. Sextro, K. Popp, I. Wolter, in: The 1997 International Gas Turbine \& Aeroengine Congress \& Exposition, 1997.
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1996 | Conference Paper | LibreCat-ID: 8896
Schwingungsverhalten eines Schaufelkranzes mit Reibelementen bei Frequenzverstimmung
K. Popp, W. Sextro, in: Forschungsvereinigung Verbrennungskraftmaschinen (FW) - Lnformationstagung Turbinen, Frankfurt am Main, Germany, 1996, pp. 53–76.
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1996 | Conference Paper | LibreCat-ID: 8897
Dynamical Behaviour of a Bladed Disk with Friction Dampers
K. Popp, W. Sextro, in: The 2nd European Nonlinear Oscillation Conference - Proceedings of EUROMECH, Prag, 1996, pp. 157–183.
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1993 | Journal Article | LibreCat-ID: 8895
Static Behaviour of Drill Strings in Curved Boreholes
W. Sextro, B. Schmalhorst, Zeitschrift Für Angewandte Mathematik Und Mechanik (ZAMM) 73 (1993) 255–257.
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1991 | Book Chapter | LibreCat-ID: 8894
Bifurcations in Dynamic Systems with Dry Friction
P. Stelter, W. Sextro, in: R. Seydel, F.W. Schneider, T. Küpper, H. Troger (Eds.), Bifurcation and Chaos: Analysis, Algorithms, Applications, Birkhäuser Basel, 1991, pp. 343–347.
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