-
Arndt, M., Long, Y., Dencker, F., Reimann, J., Twiefel J., Wurz, M.
(2020):
Novel Piezoelectric Force Sensor Array for Investigation of Ultrasonic Wire Bonding,
Electronic Components and Technology Conference (ECTC), Jun. 3-30, Orlando, USA, pp.276-283
DOI:
10.1109/ECTC32862.2020.00053
-
Schmelt, A.S.; Li, Z.; Marhenke, T.; Hasener, J.; Twiefel, J.
(2020):
Aussagefähigkeit von Fehlstellenimitaten in der ZfP,
Tagungsband
DAGA 2020 - 46. Jahrestagung für Akustik
| Datei |
ISBN:
978-3-939296-17-1
-
A. S. Schmelt; E. C. Fischer; V. Hofmann; J. Twiefel; M. C. Wurz
(2019):
Vibro-tactile displays for stimulating surface impressions,
PROCEEDINGS of the 23rd International Congress on Acoustics 9 to 13 September 2019 in Aachen, Germany, pp. 1000-1007
| Datei |
ISBN:
ISSN 2226-7808 and 2415-1599 ISBN 978-3-939296-15-7
-
A. S. Schmelt; T. Marhenke; J. Twiefel
(2019):
Identifying objects in a 2D-space utilizing a novel combination of a re-radiation based method and of a difference-image-method,
PROCEEDINGS of the 23rd International Congress on Acoustics 9 to 13 September 2019 in Aachen, Germany, pp. 8156-8163
| Datei |
ISBN:
ISSN 2226-7808 and 2415-1599 ISBN 978-3-939296-15-7
-
A. S. Schmelt, E. C. Fischer, M. C. Wurz and J. Twiefel
(2018):
Solid State Joint Actuator for a Vibro Tactile Line Display,ACTUATOR 2018; 16th International Conference on New Actuators, Bremen, Germany, 2018, pp. 1-4,
VDE Verlag
| Datei |
ISBN:
978-3-8007-4675-0
-
Behrens, B.A., Chugreev, A.; Matthias, T.; Nothdurft, S.; Hermsdorf, J.; Kaierle, S.; Ohrdes, H.; Twiefel, J.; Wallaschek, J.; Mildebrath, M.; Hassel, T.
(2018):
Investigation of the composite strength of hybrid steel-steel semi-finished products manufactured by laser beam welding and friction welding,
5TH INTERNATIONAL CONFERENCE of recent trends in structural materials (COMAT), 14.-16.11.2018, Pilsen
DOI:
10.1088/1757-899X/461/1/012049
-
Bruns, P.; Twiefel, J.; Wallaschek, J.
(2017):
Modeling of ultrasonic processes utilizing a generic software framework,
IOP Conference Series: Materials Science and Engineering, Vol. 211. No. 1, IOP Publishing, 2017
-
Fischer, E.; Glukhovskoy, A.; Schmelt, A., S.; Twiefel, J.; Wurz, M.,C.
(2017):
Mikroaktorik für ein Taktiles Display,
Proceedings of the MikroSystemTechnik Kongress 2017, October 23–25, 2017 München, S. 515-518
-
Hofmann, V.; Twiefel, J.
(2017):
Cultivator Optimization for Ultrasonic Friction Reduction using the Transfer Matrix Modeling Method,
The International Workshop on Piezoelectric Materials and Applications in Actuators, Falls Church, VA, USA
-
Long, Y.; Dencker, F.; Isaak, A.; Li, C.; Schneider, F.; Hermsdor, J.; Wurz, M.; Twiefel, J.; Wallaschek, J.
(2017):
Analysis of the Wire/Substrate Interface during Ultrasonic Bonding Process,
IEEE CPMT Symposium Japan (ICSJ), Nov 20-22, 2017 Kyoto, Japan, S. 203-206
-
Long, Y.; Dencker, F.; Isaak, A.; Schneider, F.; Hermsdor, J.; Wurz, M.; Twiefel, J.
(2017):
Visualization of Oxide Removal during Ultrasonic Wire Bonding Process,
19th IEEE Electronics Packaging Technology Conference (EPTC), Dec 6-9, 2017 Singapore, S. 1-4
-
Marhenke, T.; Twiefel, J.; Hasener , J.; Wallaschek, J.
(2017):
Ermittlung mechanischer Kennwerte von Holzwerkstoffen mittels Modal-Updating,
Proceedings der 35. CADFEM Simulation Conference, November 15-17, Koblenz, Deutschland
-
Marhenke, T.; Twiefel, J.; Hasener , J.; Wallaschek, J.
(2017):
Determination of Mechanical Properties of Wood Based Materials using Modal Updating,
Proceedings of the IEEE International Ultrasonics Symposium (IEEE IUS), September 6-9, Washingstion D.C., USA, 2017
-
Nothdurft, S.; Springer, A.; Kaierle, S.; Mildebrath, M.; Maier, H. J.; Hassel, T.; Ohrdes, H.; Twiefel, J.; Wallaschek, J.; Overmeyer, L.
(2017):
Influence of beam position and ultrasonic amplitude on the microstructure of laser welded dissimilar steel-steel joints,
International Congress on Applications of Lasers & Electro-Optics (ICALEO®), 22.-26.10.2017, Atlanta
-
Schneider, F.; Long, Y.; Ohrdes, H.; Twiefel, J.; Brökelmann, M.; Hunstig, M.; Venkatesh, A.; Hermsdorf, J.; Kaierle, S.; Overmeyer, L
(2017):
Effect of laser assistance in ultrasonic copper wire bonding
,
Lasers in Manufacturing Conference 2017
-
Aboulfotoh, N.; Twiefel J.
(2016):
A Study on the Influence of Design Parameters on the Power Output Characteristic of Piezoelectric Vibration Energy Harvester,
Proceedings of the 27th International Conference on Noise and Vibration Engineering, ISMA, Leuven
-
Bruns, P.; Twiefel, J.; Wallaschek, J.
(2016):
Experimental and Theoretical Investigation of a Vibro-Impact Process Utilizing an in situ Capacitive Distance Measurement,
Proceedings of ISMA2016 International Conference on Noise and Vibration Engineering, September 19-21, Leuven, Belgium
-
Long, Y.; Dencker, F.; Schneider, F.; Emde, B.; Li, C.; Hermsdorf, J.; Wurz, M.; Twiefel, J.
(2016):
Investigations on the Oxide Removal Mechanism during Ultrasonic Wedge-Wedge Bonding Process,
IEEE 18th Electronics Packaging Technology Conference, November 30 - December 3, Singapore, Southeast Asia, pp. 405-410
-
Long, Y.; Dencker, F.; Wurz, M.; Feldhoff, A.; Twiefel, J.
(2016):
A deeper understanding on the motion behaviors of wire during ultrasonic wedge-wedge bonding process,
International Symposium on Microelectronics, October 10-13, Pasadena, USA, pp. 427-432
-
Marhenke, T.; Twiefel, J.; Wallaschek, J.
(2016):
Zerstörungsfreie Delaminationserkennung mittels luftgekoppeltem Ultraschall,
Tagungsband der 14. Vibrometerkonferenz der Polytec GmbH: Einsatz Optischer Schwingungsmesstechnik in Industrie und Forschung, November 22-23, Waldbronn, Germany
-
Marhenke, T.; Twiefel, J.; Wallaschek, J.
(2016):
Delaminationserkennung in Holzwerkstoffen auf Basis der Ultraschalltransmissionsmessung,
Tagungsband des 3. Workshop des Fachausschusses Ultraschall der DEGA e.V.: Messtechnische Anwendungen von Ultraschall, June 20-22, Drübeck, Germany
-
Ohrdes, H.; Fischer, H.; Twiefel, J.; Wallaschek J.
(2016):
Experimental investigation of ultrasonic fluid mixing as assistance for a laser welding process,
Proceedings of ISMA2016: International Conference on Noise and Vibration Engineering, September 19-21, Leuven, Belgium, pp. 1595-1603
-
Schmidt, M.;Reinke, P.; Beckmann, T.; Saalbach, K. A.; Wallaschek, J.; Twiefel, J.; Bai, F.
(2016):
Numerical and experimental investigation of the levitation and flow created by ultrasonic fields in narrow gaps,
5th Micro and Nano Flows Conference
-
Wielert, T.; Vagapov, A.; Twiefel, J.; Mešan, I.; Bott, K.
(2016):
Performance of a Novel Small Component Conveyor Utilizing Flexural Travelling Waves,
Conference Proceedings of ACTUATOR 2016, 15th International Conference on New Actuators, June 13-15, Bremen, Germany
-
Bruns, P.; Mojrzisch, S.; Twiefel, J.; Wallaschek, J.; Klie, W.; Zimmermann, U.
(2015):
Piezoelektrische Schwingungserzeuger zur Ermittlung der dynamischen Steifigkeiten von Elastomerbauteilen,
VDI Mechatroniktagung, Dortmund
-
Bruns, P.; Twiefel, J.; Wallschek, J.
(2015):
Investigations on the Mounting Position of Ultrasonic Transducers,
The 12th International Workshop on Piezoelectric Materials and Applications in Actuators, Vilnius
-
Ertz, G.; Krack, M.; Twiefel, J.; Secanell, M.; Mertiny, P.
(2015):
Skalierbarer Demonstrator für Mobile Schwungradspeichersysteme,
VDI Mechatroniktagung, März 12-13, Dortmund, Deutschland
-
Ertz, G.; Twiefel, J.; Secanell, M.; Mertiny, P.
(2015):
Design and Manufacturing of a Scalable Composite Flywheel Demonstrator for Mobile Energy Storage System,
CANCOM, August 17-20, Edmonton, Canada
-
Long, Y.; Twiefel, J.; Roth, J.; Wallaschek, J.
(2015):
Real-time observation of interface relative motion during ultrasonic wedge-wedge bonding process,
In International Symposium on Microelectronics, IMAPS (International Microelectronics, Assembly and Packaging Society), pp. 419-424
-
Weinstein, M.; Ille, I.; Mojrzisch, S.; Twiefel, J.; Wallaschek, J.
(2015):
Resonance Frequency Tuning of Piezoelectric Ultrasonic Transducers Using Resonant Switching Converters,
Third International Academic Conference of Postgraduates, NUAA, Nanjing, China
-
Wielert, T.; Twiefel, J.; Mešan, I.; Bott, K.
(2015):
Kleinteileförderung mit einem ultraschallbasierten Wanderwellentransportsystem,
Tagungsband Mechatronik 2015
ISBN:
978-3-00-048814-6
-
Bruns, P.; Mojrzisch, S.; Twiefel, J.
(2013):
Stress Distribution and Durability of Pre-Stressed Piezoelectric Multilayer Actuators,
10th International Workshop on Piezoelectric Materials and Applications, Hannover, Germany
-
Roth, J.; Twiefel, J.; Wallaschek, J.
(2013):
Energy Harvesting Patents 2012,
Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop, Hannover, Germany
-
Saalbach, K.; Freytag, P.; Kerber, K.; Twiefel, J.
(2013):
Bond Quality Investigation of Ultrasonic Assisted Composite Casting,
Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop, July 14-17, Hannover, Germany
ISBN:
978-3-944586-10-6
-
Saalbach, K.; Freytag, P.; Kerber, K.; Twiefel, J.
(2013):
Ultrasonic Assisted Simultaneous Composite Casting – a Feasibility Study,
Ultrasonics Symposium (IUS), 2012 IEEE International-Proceedings
-
Wallaschek, J.; Saalbach, K.; Twiefel, J.
(2013):
Soundfield Design for Ultrasonically Assisted Composite Casting,
Proceedings of 11th International Conference on Vibration Problems
-
Wurpts, W.; Bruns, P.; Twiefel, J.
(2013):
A Transfer Matrix Method for the Design of Resonant Piezoelectric Devices,
10th International Workshop on Piezoelectric Materials and Applications, Hannover, Germany
-
Bruns, P.; Mojrzisch, S.; Twiefel, J.; Wallaschek, J.
(2012):
Autoresonant Control of an Electromagnetic Linear Actuator with Piecewise-Linear Restoring Force,
13th Mechatronics Forum International Conference, Linz, Austria
-
Mojrzisch, S.; Ille, I.; Twiefel J.
(2012):
Driving methods and control design for high power ultrasonic transducers,
9th International Workshop on Piezoelectric Materials and Applications in Actuators, Hirosaki, Japan
